Changes

This page describes the configuration of the two new research computing machines: '''Father''' (Windows Server 2019) and '''Mother''' (Ubuntu Server 20. This 04). Note that the [[RDP Software Configuration]] describes the software installed on Father. The hardware description and complete build notes and configuration runs information for '''Bastard''', our blisteringly fast, multi-GPU, A.I. estimation platform, are on the [[DIGITS DevBox]] page. The hardware descriptions for Father and Mother are on our the [[Research Computing Hardware]]page. Note that the configuration of the  See also: [[DIGITS DevBoxRecovering Astarte]] is for notes on its own pagemoving content from an old mediawiki installation to a new one.

#Note: change passwords from hints hint before running

UPDATE mysql.user SET Password = PASSWORD('tsnhint') WHERE User = 'root'; UPDATE mysql.user SET Password = PASSWORD('tsnhint') WHERE User = 'debian-sys-maint'; UPDATE mysql.user SET Password = PASSWORD('tsnhint') WHERE User = 'mcnair_wp';

=====Other Config=====

=====MathML=====

I tried various methods to get MathML to work and always failed. It looks like the community bet on Mathoid working out, but there's been no development on it for 5 months now, and it looks dead. The good news, if is that MathJax works just fine right out of the box:

Note: the last line lets you demark math with LaTeX-like syntax. I disabled it, as I use $ signs way to too much in other contexts.

=====PDFEmbed=====

====SemanticACL=====

<nowiki>{{#set: Visible to=whitelist|Visible to group::=team}}</nowiki>

I tried to 'rename' the dbase, creating a dedicated dbase user that has access to just the wiki's dbase, and resetting its password.

=====PostGIS Issues===== 

====Other Fixes====Update: It seems something did go wrong. Just because the extensions report back doesn't mean they work! When I try to run queries that use PostGIS, I get: SQL Error [58P01]: ERROR: could not access file "$libdir/postgis-2.4": No such file or directory I tried updating the extension (I'm pretty sure that I'm running 2.4.3): ALTER EXTENSION postgis UPDATE TO "2.4.3";

Remove redundant user accountsBut that didn't fix anything. I checked the versions: cat select version(); PostgreSQL 10.14 (Ubuntu 10.14-0ubuntu0.18.04.1) on x86_64-pc-linux-gnu, compiled by gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0, 64-bit --So somehow I'm still running version 10! select PostGIS_full_version(); ERROR: could not access file "$libdir/etc/passwdpostgis-2.4": No such file or directory CONTEXT: userdel -r usernameSQL statement "SELECT public.postgis_lib_version()" PL/pgSQL function postgis_full_version() line 25 at SQL statement

So I need to get Xwindows set up again. My best guess as to backed off the cause of this issue is leftover Nvidia drivers data from my attempts to install the GPUs on this box went bad in an earlier apt-get upgrade but two dbases that I can't see them listedd used since the upgrade: dpkg pg_dump -l | grep nvidiaFc stockmarket > stockmarket_Fc_20201023.dump pg_dump -driverFc vcdb4 > vcdb4_Fc_20201023.dump #FAILED!

There is The second backoff failed: pg_dump: [archiver (db)] query failed: ERROR: could not access file "$libdir/postgis-2.4": No such file or directory pg_dump: [archiver (db)] query was: SELECT a.attnum, a.attname, a.atttypmod, a.attstattarget, a.attstorage, t.typstorage, a .Xauthority fileattnotnull, a.atthasdef, a.attisdropped, a.attlen, a.attalign, a.attislocal, and an pg_catalog.format_type(t.ICEauthority fileoid, in /home/ed and both are owned by ed:eda. The former is empty atttypmod) AS atttypname, array_to_string(a.attoptions, ', ') AS attoptions, CASE WHEN a.attcollation <> t.typcollation THEN a.attcollation ELSE 0 bytesEND AS attcollation, a.attidentity, pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(option_name) and the latter has some non-UTF8 || ' ' || pg_catalog.quote_literal(option_value) FROM pg_catalog.pg_options_to_table(I think?attfdwoptions) ORDER BY option_name), E', ') characters in itAS attfdwoptions FROM pg_catalog.pg_attribute a LEFT JOIN pg_catalog.pg_type t ON a.atttypid = t.oid WHERE a. Iattrelid = '19998614'm not sure if either is an issue::pg_catalog.oid AND a.attnum > 0::pg_catalog.int2 ORDER BY a.attnum

After doing this the login would give a local desktop but neither the keyboard nor mouse workedMy changes weren't substantial, so I proceeded with an upgrade. First I tried uninstalling checked to see if I had postgres12 installed and reinstalled listening on another port or not: locate postgres ls /usr/bin/postgres dpkg --get-selections | grep postgres pg_lsclusters Ver Cluster Port Status Owner Data directory Log file 10 main 5432 online postgres /data/postgres /var/log/postgresql/postgresql-10-main.log 12 main 5433 online postgres /var/lib/postgresql/12/main /var/log/postgresql/postgresql-12-main.log pg_upgradecluster 10 main #This failed: pg_dump: error: query failed: ERROR: could not access file "$libdir/postgis-2.4": No such file or directory So... I can't automatically upgrade without first fixing the keyboardissue with v10 and postgis. add-configuration againapt-repository http://apt.postgresql.org/pub/repos/apt But that put the following into /etc/apt/sources-list: deb http://apt.postgresql.org/pub/repos/apt focal main vi it to (see https://wiki.postgresql.org/wiki/Apt): deb http://apt.postgresql.org/pub/repos/apt focal-pgdg wget --quiet -O - http://apt.postgresql.org/pub/repos/apt/ACCC4CF8.asc | sudo apt-key add - apt-get remove keyboardupdate #Throws a warning: N: Skipping acquire of configured file 'main/binary-i386/Packages' as repository 'http://apt.postgresql.org/pub/repos/apt focal-configurationpgdg InRelease' doesn't support architecture 'i386' But the wretched thing still doesn't seem to be available: apt-get install keyboardpostgresql-configuration 10-postgis-2.4 shutdown Package postgresql-10-postgis-r now2.4 is not available, but is referred to by another package.

But that just Trying a manual approach. [https://packages.ubuntu.com/bionic/i386/postgresql-10-postgis-2.4/download Get the file], put me back where I was: with a login loop problemit in /bulk/temp and cd there. So I tried switching to lightdmThen: apt-get install lightdm./postgresql-10-postgis-2.4_2.4.3+dfsg-4_i386.deb #This failed too - there are unmet dependencies and they are 'not installable'.

And it worked even before a reboot. After a reboot, I had a different login screen but ======Switching over the actual desktop looked the same. The .Xauthority file is now 51 bytes big and I suddenly have a .xsession-errors, which contains a list of environment settings taking place... However, the machine then silently crashed that night and again the following morning. I couldn't find a specific cause in the logs but there did seem to be a number X and GNOME problems: journalctl -b -1 journalctl --since "1 hour ago"installations======

So, I ran an update from the GUI, which may have helped. However, there was a warning about an issue with a screensaver took the first time that I loaded lightdm, and alternative approach of changing the crashes seemed to happen sometime after a clean bootdata folders [https://www. So I uninstalled lightdm, and installed gdm (which failed as installed already) and rebooted but got no GUItutorialspoint. Then I uninstalled and reinstalled gdm and everything seems fine now. aptcom/how-to-change-postgresql-data-folder-location-on-get remove lightdm aptubuntu-get remove gdm3 apt16-get install gdm304].

Incidentally, I left a clock running in a terminal so that I could see when the box went down if it crashed again. The clock code isplan: while [ 1 ] ; do echo -en "$#Take version 10 offline#Move version 10's data to a new location (date +%T/var/lib/postgresql/10/main)\r" ; sleep 1; done#Switch the ports of versions 10 and 12#Move version 12's data to /data#Put version 12 online#Load up the data in version 12!#Optionally wipe out the old installation

I kept Edit the old versions of mediawiki and wordpress and moved them to config files: vi /etc/postgresql/10/bulkmain/retired (using yyymmdd dates)postgresql.conf mv data_directory = '/var/lib/mediawiki26082020 postgresql/bulk/retired10/main' port = 5433 mv /bulkvi /retiredetc/mediawiki26082020 postgresql/bulk12/retiredmaster/mediawiki20200826postgresql.conf mv data_directory = '/vardata/wwwpostgres' port = 5432 listen_addresses = '*' #While we are here do some performance tuning: shared_buffers = 512MB huge_pages = try temp_buffers = 8G work_mem = 4GB maintenance_work_mem = 64 effective_cache_size = 384GB #Note that I didn't reduce the number of connections (and the max_wal_senders, which must be < max connections), or change max_stack_depth (which gives an error if you set it too high) vi /htmletc/blog20200809 postgresql/bulk12/retiredmaster/pg_hba.conf Copy over the config to allow access from inside the network

First, move the old folder to a new name, so that Check it is there for backup and then get the new install and unpack it.all works: psql postgres CREATE EXTENSION postgis; cd /bulk/installsCREATE EXTENSION plr; wget https://wordpress.org/latest.tar.gzCREATE EXTENSION plperl; mv /var/www/html/blog /var/www/html/blog20200809CREATE EXTENSION plpython3u; tar \dx List of installed extensions Name | Version | Schema | Description---------+---------+------------+------------------------------------------------------------------xzf latest--- plpgsql | 1.tar.gz -C /var/www/html0 | pg_catalog | PL/pgSQL procedural language cd /var/www/html/postgis | 3.0.0 | public | PostGIS geometry, geography, and raster spatial types and functions mv wordpress/ blog/(2 rows) Make the user: chown -R wwwcreateuser -data:www-data bloginteractive researcher

Put an .htaccess file Then restore the databases (as researcher in that folder to restrict access while we work/bulk/backup): vi blog/createdb stockmarket pg_restore -Fc -d stockmarket stockmarket_Fc_20201023.htaccessdump <RequireAny> createdb vcdb4 Require ip 192.168.2 pg_restore -Fc -d vcdb4 vcdb4_Fc.1 </RequireAny>dump

Then the backend works - go to httpRemove redundant user accounts: cat /etc/www.edegan.com/blog/wp-admin! However the health check shows a missing required module and two missing recommended modules. Fix that: apt-get install php7.3-gdpasswd aptuserdel -get install php7.3-curl apt-get install php7.3-imagick apachectl restartr username

Ironically, it then recommends that I upgrade need to PHP7get Xwindows set up again.4... but that would just give issues for mediawiki. On My best guess as to the other hand, everything cause of this issue is now green and just 4 groups of recommendations remain.leftover Nvidia drivers from my attempts to install the GPUs on this box went bad in an earlier apt-get upgrade but I can't see them listed: dpkg -l | grep nvidia-driver

See [[Wordpress Blog Site (Tool)]] for I didn't see xserver-xorg-video-nouvea in the McNair Centerpackage list or any video driver module, so I installed nouveau: dpkg -l lsmod | more apt install xserver-xorg-video-nouveau I's buildm not sure if I should be fixing my boot image or not... shutdown -r now lsmod | more

Using wwwAfter doing this the login would give a local desktop but neither the keyboard nor mouse worked.edegan.com/blog/wp-admin I configured tried uninstalling and reinstalled the blog as follows:keyboard-configuration again.*Select Twenty Twenty as the theme apt-get remove keyboard-configuration*Add the permalink code to the .htaccess file, so that the URLs will work with postnames*Copy over images to wp apt-content/uploads (use cp get install keyboard-a to maintain permissions)configuration *Change the site name to https (after fixing the https setup, see below) shutdown -r now

Install pluginsBut that just put me back where I was: with a login loop problem. So I tried switching to lightdm:*Yoast SEO*Wordfence Security*Disable Comments*Site Kit by Google (set up once live!)*Pixabay apt-get install lightdm

And it worked even before a reboot. After a reboot, I also addedhad a different login screen but the actual desktop looked the same. The .Xauthority file is now 51 bytes big and I suddenly have a .xsession-errors, which contains a list of environment settings taking place... However, the machine then silently crashed that night and again the following morning. I couldn't find a specific cause in the logs but there did seem to be a number X and GNOME problems:*CoBlocks (free)*Advanced Gutenberg (free) journalctl -b -1*Otter journalctl --since "1 hour ago"

I didn't add Co-Authors Plus ran an update from the GUI, which may have helped. However, there was a warning about an issue with a screensaver the first time that I loaded lightdm, and the crashes seemed to happen sometime after a clean boot. So I uninstalled lightdm, and installed gdm (https://wordpress.org/plugins/co-authors-plus/which failed as installed already) as it hasn't been tested on the latest version of wordpressand rebooted but got no GUI. There are other plugins that offer equivalent functionality if Then I need one lateruninstalled and reinstalled gdm and everything seems fine now. apt-get remove lightdm apt-get remove gdm3 apt-get install gdm3

Other plugins Incidentally, I might want areleft a clock running in a terminal so that I could see when the box went down if it crashed again. The clock code is:*Revive Old Post (share with twitter)*Optimole (optimize images)*WP Rocket while [ 1 ] ; do echo -en "$(implement cachedate +%T)\r" ; sleep 1; done

This included:*Fixing file ownership: For fully hardened, change ownership of everything to root, except wflogs, uploads and themes in wp-content, which should be owned by www-data. However, then you won't be able to install plugins etc. A compromise is -R root:root for blog and then www-data:www-data for wp-content.*Check file permissions: Everything is 644, except wp-content which is 755*Checking dbase rights and setting new passwords.*Changing passwords on old accounts (with posts, so the accounts shouldn't be deleted) to random strong strings.*Fixing up .htaccess file to impose restrictions*====Install Sucuri *Enable more logging====

Checking user rights in First, move the dbase old folder to a new name, so that it is there for backup and changing their password:then get the new install and unpack it. mysql -user=root -pcd /bulk/installs use wget https://wordpress.org/latest.tar.gz mv /var/www/html/blog /var/www/html/blog20200809 SELECT User FROM mysqltar -xzf latest.user;tar.gz -C /var/www/html/ SHOW GRANTS FOR 'username'@'localhost';cd /var/www/html/ SET PASSWORD FOR 'username'@'localhost'='newpassword';mv wordpress/ blog/ (Note that this shouldn't be logged in clear on the server, but might be on a client. Delete .mysql_history at the end of your session.) chown -R www-data:www-data blog

Put an .htaccess file in wp-includesthat folder to restrict access while we work: # Block the include-only filesvi blog/.htaccess <IfModule mod_rewrite.cRequireAny> RewriteEngine On RewriteBase / RewriteRule ^wp-admin/includes/ - [F,L] RewriteRule !^wp-includes/ - [S=3] RewriteRule ^wp-includes/[^/]+\ Require ip 192.php$ - [F,L] RewriteRule ^wp-includes/js/tinymce/langs/168.+\2.php - [F,L] RewriteRule ^wp-includes/theme-compat/ - [F,L]1 </IfModuleRequireAny> # BEGIN WordPress

Add Then set up the following dbase by editing wp-config.php (it's easiest to modify the sample).htaccess in the wordpress dir: <files cp blog/wp-config-sample.php blog/wp-config.php> order allow,denyvi blog/wp-config.php deny Note get some keys from all <: https://api.wordpress.org/secret-key/1.1/salt/files>

If there are plugin installation issues then add Then the backend works - go to http://www.edegan.com/blog/wp-configadmin! However the health check shows a missing required module and two missing recommended modules. Fix that: apt-get install php7.3-gd apt-get install php7.php3-curl apt-get install php7.3-imagick define('FS_METHOD','direct');apachectl restart

Once Ironically, it then recommends that I'm all done with upgrade to PHP7.4... but that would just give issues for mediawiki. On the theme etc.other hand, I can uncomment the following from wp-configeverything is now green and just 4 groups of recommendations remain.php define('DISALLOW_FILE_EDIT', true);

====RedesignConfig====

I built a See [[BrandingWordpress Blog Site (Tool)]] palette, to standardize for the colors. And I installed the Twentig plugin, to give extra configuration optionsMcNair Center's build.

Using www.edegan.com/blog/wp-admin I changed configured the blog as follows:*Select Twenty Twenty as the theme*Add the permalink code to the site colors.htaccess file, added so that the logo and URLs will work with postnames*Copy over images to wp-content/uploads (use cp -a to maintain permissions)*Change the tag linesite name to https (after fixing the https setup, and made other config changes.see below)

To reduce the header spacingI also added: .header-inner {*CoBlocks (free) padding: 1.5rem 0;*Advanced Gutenberg (free) }*Otter

To remove the title from the landing pageI didn't add Co-Authors Plus (https: //wordpress.pageorg/plugins/co-idauthors-2169 plus/) as it hasn't been tested on the latest version of wordpress.entry-title{ display:none !important; } There are other plugins that offer equivalent functionality if I need one later.page-id-2169 .entry-header { padding: 0; }

To doOther plugins I might want are:*Revive Old Post (share with twitter)*Optimole (optimize images)*WP Rocket (implement cache) Notes:*Twitter embedding: https://www.wpbeginner.com/wp-tutorials/how-to-display-recent-tweets-in-wordpress-with-twitter-widgets/ ====Hardening Wordpress==== I need to add social media icons! That might be as easy as adding hardened the social media menu [wordpress installation: https://wordpress.org/support/article/twentyhardening-twentywordpress/#add-social-icons].*Get a '''related posts widget'''? There's Yet Another Related Posts Plugin, Contextual Related Posts, and Inline Related Posts... I went with YARPP, as it is the most popular. It is apparently resource-heavy.

I tried the following blocks pluginsThis included:*'''Ultimate Addons for Guttenberg'''*It's free and adds some nice basic functionality**Post blocks includeFixing file ownership: Post CarouselFor fully hardened, Post Gridchange ownership of everything to root, Post Masonryexcept wflogs, Post Timelineuploads and themes in wp-content, Advanced Columns which should be owned by www-- but customization is limited and I candata. However, then you won't do one post*'''Getwid''':**Pretty highly customizablebe able to install plugins etc. **Can specify which posts to show in 3 blocks (Custom Post Type, Post Carousel, and Post Slider) and can build custom templates to arrange how they are displayed**Post blocksA compromise is -R root: Recent Posts, Custom Post Type, Post Carousel, root for blog and Post Slider*'''Redux''' then www-data:www- It's a templates library. You get 5 data for free and they upsell hardwp-content.*'''ZeGuten''' Check file permissions: Everything is 644, except wp- Couldn't find itcontent which is 755*'''Advanced Gutenberg''' - It's free Checking dbase rights and widely used..setting new passwords. *'''CoBlocks''' -- Does the basics**Posts -- Can't specify specific Changing passwords on old accounts (with posts. Can do category.**Post Carousel -- Likewise.*'''Stackable''':**It requested opt-in, which I didn't like, and it wants you to 'Go Premium'. **It has settings for everything! By far so the most detailed configuration.**Useful blocks:***Posts -- canaccounts shouldn't seem to specify a specific post***Advanced Columns and Grids -- for layout***Card -- could make posts links with buttons***Feature/Feature Grid -- likewise***Container? Might be helpful*'''Gutenberg Post Blocks'''**Untested with my version. Seems deleted) to workrandom strong strings. **Has lots of options but does full-page things. Can limit to a post using include but has next page linksFixing up ...**Tried to push for an update htaccess file to pro.impose restrictions*'''Magical Posts Display''' -- I dumped it for being too weird.Install Sucuri *'''Otter Blocks'''**Google maps block and other useful things... I just don't need it right now.Enable more logging

Built-Checking user rights inthe dbase and changing their password:*Latest Posts (widget) mysql -user=root -p use wordpressChosen block plugins: SELECT User FROM mysql.user;*'''Getwid SHOW GRANTS FOR 'username'@' -- Itlocalhost's outstanding and embraces templates for serious bespoke customization;* SET PASSWORD FOR 'username'@'Stackablelocalhost'='newpassword' -- For its option-based customization;*I might add back '''coblocks'' (Note that this shouldn't be logged in clear on the server, '''Advanced Gutenberg''' and '''Ultimate Addons for Gutenberg'''but might be on a client. Delete .mysql_history at the end of your session.)

.htaccess in wp-includes: # Block the include-only files. <IfModule mod_rewrite.c> RewriteEngine On RewriteBase / RewriteRule ^wp-admin/includes/ - [F,L] RewriteRule !^wp-includes/ - [S===HTTPS===3] RewriteRule ^wp-includes/[^/]+\.php$ - [F,L] RewriteRule ^wp-includes/js/tinymce/langs/.+\.php - [F,L] RewriteRule ^wp-includes/theme-compat/ - [F,L] </IfModule> # BEGIN WordPress

To set up HTTPS using Let's Encrypt, see https://linuxizeThe #BEGIN WordPress tag is redundant as the file is 644 root.com/post/secure-apache-with-let-s-encrypt-on-ubuntu-20-04/

Install it and make some directories.Add the following to .htaccess in the wordpress dir: <files wp-config.php> apt updateorder allow,deny apt install certbotdeny from all openssl dhparam -out /etc/ssl/certs</dhparam.pem 2048files> takes ~20 secs mkdir If there are plugin installation issues then add to wp-p /var/lib/letsencrypt/config.well-knownphp chgrp wwwdefine('FS_METHOD','direct'); Once I'm all done with the theme etc., I can uncomment the following from wp-data /var/lib/letsencryptconfig.php chmod g+s /var/lib/letsencryptdefine('DISALLOW_FILE_EDIT', true);

Set up {{Colored box|title=Notice|content=With hardened permissions, you won't be able to update Wordpress from the config files vi /etc/apache2/confdashboard. To fix this, set ownership of the entire wordpress directory to www-data:www-available/letsencryptdata (i.conf Alias /e.well, chown -known/acmeR www-data:www-challenge/ "/var/lib/letsencryptdata blog/), run the update, and then revert the ownership to root (or some other account).well-known/acme-challenge/" <Directory "/var/lib/letsencrypt/"> AllowOverride None Options MultiViews Indexes SymLinksIfOwnerMatch IncludesNoExec Require method GET POST OPTIONS </Directory>}}

vi /etc/apache2/conf-available/ssl-params.conf====Redesign====  SSLProtocol all -SSLv3 -TLSv1 -TLSv1I built a [[Branding]] palette, to standardize the colors.1 SSLCipherSuite ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA- CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384 SSLHonorCipherOrder off SSLSessionTickets off SSLUseStapling On SSLStaplingCache "shmcb:logs/ssl_stapling(32768)" SSLOpenSSLConfCmd DHParameters "/etc/ssl/certs/dhparamAnd I installed the Twentig plugin, to give extra configuration options.pem" Header always set Strict-Transport-Security "max-age=63072000"

Run certbot! certbot certonly --agree-tos --email ed@edegan.com --webroot -w /var/lib/letsencrypt/ -d edegan.com -d www.edegan.com Note that Then, I needed an @ entry in my A record for edegan.com pointed to my IP address to get the main challenge to succeedadded custom CSS as follows.

Then set up a new apache2 config file (in /etc/apache)To reduce the header spacing: mv sites-available/000-default.conf sitesheader-available/000-default.conf.bakinner { vi sites-available/edegan.com.conf <VirtualHost * padding:80> ServerName www.edegan.com ServerAdmin ed@edegan.com Redirect permanent / https://www1.edegan.com/5rem 0; </VirtualHost> <VirtualHost *:443> ServerName www.edegan.com Protocols h2 http/1.1 DocumentRoot /var/www/html ErrorLog ${APACHE_LOG_DIR}/error.log CustomLog ${APACHE_LOG_DIR}/access.log combined SSLEngine On SSLCertificateFile /etc/letsencrypt/live/edegan.com/fullchain.pem SSLCertificateKeyFile /etc/letsencrypt/live/edegan.com/privkey.pem # Other Apache Configuration Alias /wiki /var/www/html/mediawiki/index.php RewriteEngine On RewriteRule ^/*$ %{DOCUMENT_ROOT}/mediawiki/index.php [L] </VirtualHost> ln -s sites-available/edegan.com.conf sites-enabled/edegan.com.conf systemctl reload apache2

Test it by going to httpsTo remove the title from the landing page://www .ssllabspage-id-2169 .com/ssltest/entry-title{ display:none !important; } .page-id-2169 .entry-header { padding: 0; }

Finally, edit To do:*I need to add social media icons! That might be as easy as adding the social media menu [https:/etc/cronwordpress.dorg/support/certbot and append the following to the last line (after article/twenty-renew): twenty/#add-social-renew-hook "systemctl reload apache2"icons]. certbot renew *Get a '''related posts widget'''? There's Yet Another Related Posts Plugin, Contextual Related Posts, and Inline Related Posts... I went with YARPP, as it is the most popular. It is apparently resource--dry-run Tests the renewal!heavy.

====PDFEmbed Issue====I tried the following blocks plugins:*'''Ultimate Addons for Guttenberg'''Enabling *It's free and requiring HTTPS causes an issue with PDFEmbed on mediawikiadds some nice basic functionality**Post blocks include: Post Carousel, Post Grid, where you get a blank frame. The PDF is still therePost Masonry, other images load finePost Timeline, Advanced Columns -- but the PDF frame woncustomization is limited and I can't render the PDFdo one post*'''Getwid''':**Pretty highly customizable. The problem is actually that the PDF is served with HTTP **Can specify which posts to show in 3 blocks (Custom Post Type, Post Carousel, and Post Slider) and the rest of the page is served with HTTPScan build custom templates to arrange how they are displayed**Post blocks: Recent Posts, Custom Post Type, Post Carousel, and Chrome (Post Slider*'''Redux''' -- It's a templates library. You get 5 for free and perhaps other browsers) donthey upsell hard.*'''ZeGuten''' - Couldn't render find it*'''Advanced Gutenberg''' - It's free and widely used... *'''CoBlocks''' -- Does the insecure content as a consequence (see [https://wwwbasics**Posts -- Can't specify specific posts. Can do category.mediawiki**Post Carousel -- Likewise.org/wiki/Topic*'''Stackable''':Uhgnq0wbmzfurbj0] **It requested opt-in, which I didn't like, and it wants you to 'Go Premium'. **It has settings for a description of the symptoms, but not everything! By far the solution.)most detailed configuration.**Useful blocks:The solution is ***Posts -- can't seem to edit mediawikispecify a specific post***Advanced Columns and Grids -- for layout***Card -- could make posts links with buttons***Feature/extensions/PDFEmbed/PDFEmbedFeature Grid -- likewise***Container? Might be helpful*'''Gutenberg Post Blocks'''**Untested with my version.hooks.phpSeems to work. For me it was line 103 that previously said: 'src' => $file**Has lots of options but does full->getFullUrl()page things.'#Can limit to a post using include but has next page='links...$page,I changed this line **Tried to push for an update to:pro. *'''srcMagical Posts Display' => preg_replace("/^http:/i", "https:", $file'' -->getFullUrl())I dumped it for being too weird.*'''#page=Otter Blocks'''**Google maps block and other useful things... I just don't need it right now.$page,

This is mentioned Built-in a comment on a topic page, though presumably for an earlier version: https://www.mediawiki.org/wiki/Topic:Syxow0why4c0cvvm*Latest Posts (widget)

apt-get install vsftpd cp /etc/vsftpdI installed WP Mail SMTP Lite.conf /etc/vsftpd.conf_orig vi /etc/vsftpd.conf #Change the following write_enable=YES local_umask=022 ssl_enable=YES #Add the following (forces ssl) allow_anon_ssl=NO force_local_data_ssl=YES force_local_logins_ssl=YES ssl_tlsv1=YES ssl_sslv2=YES ssl_sslv3=YES /etc/init.d/vsftpd restart

Then add a user I first set it up to use Google. Essentially you need to sign in to Google and set it upan API in the console: https: useradd -m blog passwd blog usermod -a -G www-data blog usermod -d /var/wwwconsole.developers.google.com/htmlflows/blog blogenableapi?apiid=gmail&pli=1. However, this seemed to introduce a massive security hole unless you have G Suite, so I abandoned this approach.

Test I had previously set up SMTP through Google for the wiki (See [[Research_Computing_Configuration#Confirm_Account]]). So, I used the same approach with Wordpress. In WP Mail SMTP Lite choose 'Other' (see the [https://www.wpbeginner.com/plugins/how-to-send-email-in-wordpress-using-the-gmail-smtp-server/ second method]). Then [https://wpmailsmtp.com/docs/how-to-secure-smtp-settings-by-using-constants/ edit wp-config.php to hardcode the values] (this ensures that the password, which is stored plain-text, is a little more secure.): define( 'WPMS_ON', true ); //You MUST set this if you want hardcoded values to work! define( 'WPMS_LICENSE_KEY', '' ); define( 'WPMS_MAIL_FROM', 'blog@edegan.com' ); define( 'WPMS_MAIL_FROM_FORCE', true ); define( 'WPMS_MAIL_FROM_NAME', 'The Blog at EdEgan.com' ); define( 'WPMS_MAIL_FROM_NAME_FORCE', true ); define( 'WPMS_MAILER', 'smtp' ); // Possible values: 'mail', 'gmail', 'mailgun', 'sendgrid', 'smtp'. define( 'WPMS_SET_RETURN_PATH', true ); define( 'WPMS_SMTP_HOST', 'ssl://smtp.gmail.com' ); define( 'WPMS_SMTP_PORT', 465 ); define( 'WPMS_SSL', 'ssl' ); // Possible values '', 'ssl', 'tls' - note TLS is not STARTTLS. define( 'WPMS_SMTP_AUTH', true ); define( 'WPMS_SMTP_USER', 'username@gmail.com' ); // SMTP authentication username, only used if WPMS_SMTP_AUTH is true. define( 'WPMS_SMTP_PASS', 'password generated by Google' ); define( 'WPMS_SMTP_AUTOTLS', true ); =====Author Comments===== The blog supports multiple authors and by default, Wordpress emails an author whenever one of their posts gets a comment. If you'd like to disable author comment emails but keep the moderator emails, there's a simple fix: '''Just go to wp-admin/options.php and set 'comments_notify' to 0.''' (See https://codex.wordpress.org/Option_Reference) More complicated methods involve writing your own plugin [https://wordpress.stackexchange.com/questions/150125/disabling-comment-notifications-for-post-author] to refine wp_new_comment_notify_postauthor[https://developer.wordpress.org/reference/functions/wp_new_comment_notify_postauthor/] or changing the hooks[https://developer.wordpress.org/reference/hooks/notify_post_author/] used in wp-includes/comment.php: $maybe_notify = apply_filters( 'notify_post_author', $maybe_notify, $comment_ID ); ====Social Media Integration==== Getting the social media icons on the menu and correctly linked up is very straight forward. Follow the [https://wordpress.org/support/article/twenty-fifteen/#add-social-icons guide for twenty-fifteen], which also works for 2020. Getting some share buttons was more problematic, particular as my planned social media usage is somewhat atypical (Twitter, LinkedIn, and Reddit, really in reverse order), and because I don't want to pay anything.  The free version of [https://revive.social/plugins/revive-old-post/ Revive Old Posts] lets you push content to Twitter and Facebook, but they want you pay to push to LinkedIn. The best free options seem to be:*[https://wordpress.org/plugins/add-to-any/ AddToAny Share Buttons] - Integrates with Google Analytics*[https://wordpress.org/plugins/simple-social-icons/ Simple Social Icons] - The simplest option*[https://wordpress.org/plugins/shared-counts/ Shared Counts] -- Counts hits (but using a 3rd party for data?)*[https://wordpress.org/plugins/wordpress-social-login/ WordPress Social Login] - if you want users to log in using their SM accounts (note: has a bimodal ratings distro)*[https://wordpress.org/plugins/jetpack/ JetPack] -- The plugin used by wordpress.com for this functionality. The free version should suffice, but this thing is a monster. It also uses an account on the wordpress.com cloud, which is a pain for those who are self-hosting. I went with AddToAny, as it had the most installations, is entirely open-source, and offers all the functionality I need. ====Avoiding JetPack==== I tried to add a profile picture, but by default, WordPress uses [https://en.gravatar.com/ Gravitar], which, surprise, surprise, links to your WordPress.com account... and to add a self-hosted site, you have to install JetPack. At this point, I felt harassed and doubly so because I didn't install JetPack and yet, some how, the profile picture correctly updated from the one I'd posted on Gravitar. What the hecK? ===SEO=== I used Site Kit plugin for wordpess, and for mediawiki I made a sitemap to submit to Google. See https://www.mediawiki.org/wiki/Manual:GenerateSitemap.php In mediawiki: mkdir sitemap php maintenance/generateSitemap.php --memory-limit=50M --fspath=/var/www/html/mediawiki/sitemap/ --identifier=edegancom --urlpath=/sitemap/ --server=https://www.edegan.com --compress=yes Then submit itto Google... I did this by making an alias in apache2.conf from sitemap to /var/www/html/mediawiki/sitemap/, then submitting https://www.edegan.com/sitemap/sitemap-index-edegancom.xml ftp 127#in retrospect, I wish I'd used an identifier with 'wiki' in it but what the hey. And with that success behind you, install Google XML Sitemaps on Wordpress, chose some settings (on Settings -> XML-Sitemap), and then post the URL to Google: https://www.edegan.com/blog/sitemap.xml It seems Yoast already builds a sitemap, you just need to submit to it Google.0.0.1(I uninstalled XML Sitemaps): sftp 127https://www.0edegan.com/blog/sitemap_index.0xml ===HTTPS=== To set up HTTPS using Let's Encrypt, see https://linuxize.1com/post/secure-apache-with-let-s-encrypt-on-ubuntu-20-04/

Install it and make some directories... apt update apt install certbot openssl dhparam -out /etc/ssl/certs/dhparam.pem 2048 takes ~20 secs mkdir -p /var/lib/letsencrypt/.well-known chgrp www-data /var/lib/letsencrypt chmod g+s /var/lib/letsencrypt Set up the config files vi /etc/apache2/conf-available/letsencrypt.conf Alias /.well-known/acme-challenge/ "/var/lib/letsencrypt/.well-known/acme-challenge/" <Directory "/var/lib/letsencrypt/"> AllowOverride None Options MultiViews Indexes SymLinksIfOwnerMatch IncludesNoExec Require method GET POST OPTIONS </Directory>  vi /etc/apache2/conf-available/ssl-params.conf SSLProtocol all -SSLv3 -TLSv1 -TLSv1.1 SSLCipherSuite ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA- CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384 SSLHonorCipherOrder off SSLSessionTickets off SSLUseStapling On SSLStaplingCache "shmcb:logs/ssl_stapling(32768)" SSLOpenSSLConfCmd DHParameters "/etc/ssl/certs/dhparam.pem" Header always set Strict-Transport-Security "max-age=63072000" Enable some apache2 mods! a2enmod ssl a2enmod headers a2enconf letsencrypt a2enconf ssl-params sudo a2enmod http2 systemctl reload apache2 Run certbot! certbot certonly --agree-tos --email ed@edegan.com --webroot -w /var/lib/letsencrypt/ -d edegan.com -d www.edegan.com Note that I needed an @ entry in my A record for edegan.com pointed to my IP address to get the main challenge to succeed. Then set up a new apache2 config file (in /etc/apache): mv sites-available/000-default.conf sites-available/000-default.conf.bak vi sites-available/edegan.com.conf <VirtualHost *:80> ServerName www.edegan.com ServerAdmin ed@edegan.com Redirect permanent / https://www.edegan.com/ </VirtualHost> <VirtualHost *:443> ServerName www.edegan.com Protocols h2 http/1.1 DocumentRoot /var/www/html ErrorLog ${APACHE_LOG_DIR}/error.log CustomLog ${APACHE_LOG_DIR}/access.log combined SSLEngine On SSLCertificateFile /etc/letsencrypt/live/edegan.com/fullchain.pem SSLCertificateKeyFile /etc/letsencrypt/live/edegan.com/privkey.pem # Other Apache Configuration Alias /wiki /var/www/html/mediawiki/index.php RewriteEngine On RewriteRule ^/*$ %{DOCUMENT_ROOT}/mediawiki/index.php [L] </VirtualHost> ln -s sites-available/edegan.com.conf sites-enabled/edegan.com.conf systemctl reload apache2 Test it by going to https://www.ssllabs.com/ssltest/ Finally, edit /etc/cron.d/certbot and append the following to the last line (after -renew): --renew-hook "systemctl reload apache2" certbot renew --dry-run Tests the renewal! ====PDFEmbed Issue==== Enabling and requiring HTTPS causes an issue with PDFEmbed on mediawiki, where you get a blank frame. The PDF is still there, other images load fine, but the PDF frame won't render the PDF. The problem is actually that the PDF is served with HTTP and the rest of the page is served with HTTPS, and Chrome (and perhaps other browsers) don't render the insecure content as a consequence (see [https://www.mediawiki.org/wiki/Topic:Uhgnq0wbmzfurbj0] for a description of the symptoms, but not the solution.). The solution is to edit mediawiki/extensions/PDFEmbed/PDFEmbed.hooks.php. For me it was line 103 that previously said: 'src' => $file->getFullUrl().'#page='.$page,I changed this line to: 'src' => preg_replace("/^http:/i", "https:", $file->getFullUrl()).'#page='.$page, This is mentioned in a comment on a topic page, though presumably for an earlier version: https://www.mediawiki.org/wiki/Topic:Syxow0why4c0cvvm ====Another Issue==== Interestingly, I started getting a message from Google Chrome whenever I went to post wiki entries saying: "The information you’re about to submit is not secure". There's an option to "Proceed anyway" or "Go back".  This started after I had MultiTail running viewing apache's logs, but I couldn't see, beyond some kind of file lock examination, how it could work. I figured that it was a coincidence and something else might have happened.  My first thought was that my SSL certificate might have expired. However, the certificate looks valid and good, and the issue survived a reboot. By inspecting the webpages (in Chrome) and then reviewing the Console, I could see that it was caused by a mixed content problem: Mixed Content: The page at '<URL>' was loaded over HTTPS, but requested an insecure font '<URL>'. This request has been blocked; the content must be served over HTTPS. It seemed that I somehow have some font addresses hardcoded somewhere: Mixed Content: The page at ... was loaded over HTTPS, but requested an insecure font 'http://128.42.44.180/mediawiki/resources/assets/fonts/BonvenoCF-Light.otf'. This request has been blocked; the content must be served over HTTPS. The copy of Chrome on my desktop must somehow have been upgraded? Or something else changed to cause a change in behavior... The IP is from the old web server at the McNair Center, suggesting that when I migrated the McNair database into the new wiki, I migrated this issue. (Note that it doesn't appear to be something hardcoded into a .css file, or similar -- I can't find any trace on the filesystem and besides, this wiki was built from a fresh install.)  I found the URLs hardcoded in [[MediaWiki:Common.css]] (it must have been moved with the last big batch of pages and I somehow didn't notice!) but then couldn't edit it! It seems that following [https://www.mediawiki.org/wiki/MediaWiki_1.32/interface-admin Mediawiki 1.32], the rights to edit the interface were separated out, and users now need the editinterface right to change anything in the Mediawiki namespace. So, I went to [[Special:UserRights]] and gave myself permission. Then I edited the page, which changed the look-and-feel of my editor (I have no idea why), removed the consol messages, but left the problem (even after ctrl-shift-r cache flush on Chrome). ===Install VSFTPD=== With the security restrictions on wordpress, I now need an FTP server to get files for themes, plugins, etc. I like VSFTPD, as its simple, secure, and has a nice standalone config. Old documentation on an earlier install on the old [[Wordpress Blog Site (Tool)]] page. Instructions are here: https://linuxconfig.org/how-to-setup-ftp-server-on-ubuntu-20-04-focal-fossa-linux  apt-get install vsftpd cp /etc/vsftpd.conf /etc/vsftpd.conf_orig vi /etc/vsftpd.conf #Change the following write_enable=YES local_umask=022 ssl_enable=YES #Add the following (forces ssl) allow_anon_ssl=NO force_local_data_ssl=YES force_local_logins_ssl=YES ssl_tlsv1=YES ssl_sslv2=YES ssl_sslv3=YES /etc/init.d/vsftpd restart Then add a user and set it up: useradd -m blog passwd blog usermod -a -G www-data blog usermod -d /var/www/html/blog blog Test it: ftp 127.0.0.1 sftp 127.0.0.1 See also: *http://praveen.kumar.in/2009/05/31/setting-up-ftps-using-vsftpd-for-wordpress-plugins-auto-upgrade/*https://askubuntu.com/questions/14371/how-to-setup-ftp-to-use-in-locally-hosted-wordpress To address some of the issues with the FTP server's file permissions in wordpress add to wp-config.php: define( 'WP_CONTENT_DIR', 'wp-content' ); define( 'FTP_BASE', '/var/www/html/blog/' ); If I chmod blog:blog /var/www/html/blog then everything seems to work find when I sftp but wordpress is unable to create a directory... I can't work out why this is happening. I expect it has to do with the need for another wordpress specific define() statement, but I'm spending too much time on it. So I'm going to use direct installation of plugins instead, and remove the FTP server as it is a point of vulnerability. apt-get remove vsftpd userdel blog ===Final Configuration Changes to Apache=== Lock down apache somewhat further (as now there are directories that shouldn't be listable, etc.) cd /etc/apache2 vi apache2.conf #Change the directory definitions. Notes that if -SomeOption is used then other options must have + or - in front of them: <Directory /var/www/html> Options -Indexes +FollowSymLinks AllowOverride All Require all granted </Directory> systemctl reload apache2 #To debug: systemctl status apache2.service ====Remove the debug setup==== In the wiki (LocalSettings.php), comment the debug lines (I can't see when I added them from the documentation, but if you want to see error messages during the config, you'd want them uncommented): #error_reporting( -1 ); #ini_set( 'display_errors',1 ); #$wgShowExceptionDetails = true; #$wgShowDBErrorBacktrace = true; #$wgShowSQLErrors = true; Check the permissions set using $wgGroupPermissions - see https://www.mediawiki.org/wiki/Manual:User_rights Run all the updates to the blog, etc., from the consol before locking it down. Then in wp-config.php, lock down the ability to install plugins, etc., by commenting: #define('FS_METHOD','direct'); Edit the .htaccess files in blog and mediawiki to allow access but with appropriate restrictions. Note that the rewrite rules for the blog are in its .htaccess file <IfModule mod_rewrite.c> RewriteEngine On RewriteBase /blog/ RewriteRule ^index\.php$ - [L] RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule . /blog/index.php [L] </IfModule> To make the blog the default, edit /etc/apache/sites-available-edegan.com.conf, add an alias (don't alias to index.php as it will cause design issues, the rewrite rule for that is already in the .htaccess file!): Alias /blog /var/www/html/blog/ And change: RewriteRule ^/*$ %{DOCUMENT_ROOT}/mediawiki/index.php [L] To: RewriteRule ^/*$ %{DOCUMENT_ROOT}/blog/index.php [L] Then: systemctl reload apache2 Note: Don't change the DocumentRoot to the blog, as this will destroy the design of the wiki. The last rewrite rule will decide the default site! ===Changing the Wordpress url=== It seems likely that some Reddit bots are automatically blocking postings with the word blog in their URL. So I decided to move my Wordpress installation from /blog to /journal.  Note that I briefly tried 'article' (singular to save letters). I also considered 'paper', which is shorter but not quite right. Likewise study, etc. Also digest (which was a close second), review, bulletin, and pub (which was just too ambiguous). The problem with article is that although it looks good for article URLS, the landing URL is then www.edegan.com/article. A collection word is better. And journal appeals to the academic in me. To do this takes about 10 minutes (see https://wordpress.org/support/article/moving-wordpress/). You have to:#Make the change in Wordpress through wp-admin (you have to do this first!) - Set both the Wordpress Address (URL) and Site Address (URL) fields#Move the directory to the new name (at this point I could access www.edegan.com/article)#Fix aliases in apache and the default subdomain for landing (see below)#Fix the permalinks (update the .htaccess file)#Fix the links hardcoded in menus#(Create and) load up a new icon image (it is set under Appearance -> Customize -> Site Identity)#Run any updates etc.#Reconnect Google site kit#Rerun Yoast SEO optimizer To fix the main alias in apache: vi /etc/apache2/sites-available/edegan.com.conf Change: Alias /blog /var/www/html/blog/ RewriteRule ^/*$ %{DOCUMENT_ROOT}/blog/index.php [L] systemctl reload apache2 I also needed to:#Perform a backup (I really should have done this before moving the site but hey...)#Fix the images etc. (they initially fine... but I came to suspect that they were cached and an HTML inspected revealed the wrong URLs) Do the backup (with a user that has process privileges): cd /bulk/backups mysqldump --add-drop-table -h localhost -u user -p wordpress | gzip > wordpress-20210209.sql.gz or mysqldump --add-drop-table -h localhost -u user -p wordpress > wordpress-20210209.sql Then install and use Velvet Blues (see https://www.wpbeginner.com/plugins/how-to-update-urls-when-moving-your-wordpress-site/) and use it to change the URLs (use https:// as a page inspection shows that this is correct) ===Another Change to the Wordpress URL and some updates === As root get the mysql dbase details: mysql -p #hint: tsn select host, user from mysql.user; show databases; Read mail: less /var/mail/$(whoami) Look in wp-config.php for dbase, user, pword etc. cat /var/www/html/journal/wp-config.php Back up the dbase mysqldump --add-drop-table -h localhost -u root -p wordpress > wordpress-20220814.sql Change settings (on https://www.edegan.com/journal/wp-admin/options-general.php)* WordPress Address (URL)** https://www.edegan.com/articles* Site Address (URL)** https://www.edegan.com/articles Move the folder: cd /var/www/html/ mv journal articles Reload: https://www.edegan.com/articles/wp-admin/options-general.php? Fix the .htaccess file to do the permalinks cd articles vi .htaccess #change 2 instances of journal to articles Fix the links in the menu on https://www.edegan.com/articles/wp-admin/customize.php?* Change links in menus! (2 instances - then publish) Upgrade php to 7.4 sudo apt-add-repository ppa:ondrej/php apt update apt install -y php7.4 php7.4-cli php7.4-common php7.4-fpm apt install -y php7.4-mysql php7.4-dom php7.4-simplexml php7.4-ssh2 php7.4-xml php7.4-xmlreader php7.4-curl php7.4-exif php7.4-ftp php7.4-gd php7.4-iconv php7.4-imagick php7.4-json php7.4-mbstring php7.4-posix php7.4-sockets php7.4-tokenizer apt install -y php7.4-mysqli php7.4-pdo php7.4-sqlite3 php7.4-ctype php7.4-fileinfo php7.4-zip php7.4-exif a2dismod php7.3 a2enmod php7.4 a2enmod proxy_fcgi setenvif a2enconf php7.4-fpm systemctl reload apache2 Update wordpress* Note that I have wordpress chown -R root:root for articles and then www-data:www-data for wp-content.* Didn't read: https://www.edegan.com/articles/wp-admin/update-core.php?action=do-core-upgrade Do the update /var/www/html# chown -R www-data:www-data articles/ run update in wp-admin * Update all the plugins* Update themes* Wordfence** Update .htaccess for extended protection. Reharden: chown -R root:root articles/ chown -R www-data:www-data articles/wp-content/ Fix the alias in apache! vi /etc/apache2/sites-available/edegan.com.conf Alias /journal /var/www/html/articles Alias /articles /var/www/html/article Alias /blog /var/www/html/blog RewriteRule ^/*$ %{DOCUMENT_ROOT}/articles/index.php [L] #Redirect the journal root to articles Redirect permanent /journal https://www.edegan.com/articles systemctl reload apache2 Plugins etc.* Site Kit by Google** Setup! (sign in using dredegan@gmail.com)* Yoast SEO** Rerun optimization Fix image links, etc.* I repointed the /journal and /blog aliases* Run the velvet blues plugin Fix the icon:* https://www.edegan.com/articles/wp-content/uploads/2021/02/edegandotcomslashjournal-LightGreyOnDarkBlue.png* In Z:\projects\WebDesign\LogosV2.xcf* Export as edegandotcomslasharticles-LightGreyOnDarkBlue.png* Set under Site Identity ===Useful tools=== ====Multitail==== I installed [https://www.vanheusden.com/multitail/manual.php Multitail]: apt-get multitail The [https://www.vanheusden.com/multitail/manual.php manual] is pretty weak, but the [https://www.vanheusden.com/multitail/examples.php examples] are good and the [https://www.vanheusden.com/multitail/features.php feature list] is excellent. Here's some useful commands to review log files: multitail -cS apache -ev "Bot" /var/log/apache2/access.log -ci white -e "Bot" -I /var/log/apache2/access.log multitail -cS apache -ev "Bot" -ev "bot" -ev "internal dummy connection" /var/log/apache2/access.log ====Traceroute====  apt install traceroute Note: [https://zmap.io/ Zmap] seems popular nowadays, based on traffic logs. ====Other==== Connect with smb from Mother to Father: smbclient //192.168.2.200/sharename -U Domainname/username Note that you need to specify the domain. Mount a thru connection: mount -t cifs -o user=username //192.168.2.200/sharename /mnt/father ln -s /mnt/father/whatever/ /bulk/whatever ==Old machines== For the configuration of the servers built for the McNair Center, see the old [[Center IT]] page or the pages below:*[[Database Server Documentation]]*[[RDP Documentation]]**[[Server Backup Policy]]**[[Power Backup]]*[[Test Web Server Documentation]]*[[Web Server Documentation]]**[[Wiki Configuration]]**[[Security on the wiki]] Some of this information is still useful! In addition, at UC Berkeley, Ed designed and built three machines - two postgresql database servers and a wiki server. The documentation is here:*[[Haas PhD Server Configuration]]*[[Posgres Server Configuration]] -- documents the build of postgres2

==Old machines== For the configuration of the servers built for the McNair Center, see the old Some [[Center ITPrivate Configuration]] page or changes to the pages below:*[[Database Server Documentation]]*[[RDP Documentation]]**[[Server Backup Policy]]**[[Power Backup]]*[[Test Web Server Documentation]]*[[Web Server Documentation]]**[[Wiki Configuration]]**[[Security research computing setup are not recorded on the public wiki]] Some of this information is still useful! In addition, at UC Berkeley, Ed designed and built three machines - two postgresql database servers and a wiki serverpages. The documentation is here:*[[Haas PhD Server Configuration]]*[[Posgres Server Configuration]] -- documents the build of postgres2