Changes

This page describes the configuration of the new research computing machines: '''Father''' (Windows Server 2019) and '''Mother''' (Ubuntu Server 20.04). Note that the [[RDP Software Configuration]] describes the software installed on Father.

=====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 the keyboardlistening on another port or not: locate postgres ls /usr/bin/postgres dpkg --get-configuration again.selections | grep postgres pg_lsclusters Ver Cluster Port Status Owner Data directory Log file 10 aptmain 5432 online postgres /data/postgres /var/log/postgresql/postgresql-get remove keyboard10-configurationmain.log 12 aptmain 5433 online postgres /var/lib/postgresql/12/main /var/log/postgresql/postgresql-get install keyboard12-configuration main.log pg_upgradecluster 10 main #This failed: pg_dump: error: query failed: ERROR: shutdown could not access file "$libdir/postgis-r now2.4": No such file or directory

So... I can't automatically upgrade without first fixing the issue with v10 and postgis. add-apt-repository http://apt.postgresql.org/pub/repos/apt But that just put me back where I wasthe 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: with //apt.postgresql.org/pub/repos/apt/ACCC4CF8.asc | sudo apt-key add - apt-get update #Throws a login loop problemwarning: N: Skipping acquire of configured file 'main/binary-i386/Packages' as repository 'http://apt.postgresql.org/pub/repos/apt focal-pgdg InRelease' doesn't support architecture 'i386' But the wretched thing still doesn't seem to be available: apt-get install postgresql-10-postgis-2.4 Package postgresql-10-postgis-2. So I tried switching 4 is not available, but is referred to lightdmby another package. Trying a manual approach. [https://packages.ubuntu.com/bionic/i386/postgresql-10-postgis-2.4/download Get the file], put it in /bulk/temp and cd there. Then: 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.tar.gz -C /var/www/html/ cd /var/www/htmlplpgsql | 1.0 | pg_catalog | PL/pgSQL procedural language mv wordpress/ blog/postgis | 3.0.0 | public | PostGIS geometry, geography, and raster spatial types and functions chown -R www-data:www-data blog(2 rows)

Put an .htaccess file in that folder to restrict access while we workMake the user: vi blog/.htaccess <RequireAny> Require ip 192.168.2.1 </RequireAny>createuser --interactive researcher

Then set up the dbase by editing wp-configThe restore threw some errors related to not having extension plpythonu, but otherwise seemed fine.php (it's easiest The issue seems to modify the sample)be that pythonu is python2[https://www.postgresql. cp blogorg/wp-config-sample.php blogdocs/wp-config.php vi blog12/wpplpython-configpython23.php Note get some keys fromhtml], and python2 is not available for postgres 12 (it might be here: https://apiwiki.wordpresspostgresql.org/secretwiki/Apt): apt-key/1cache search ".*plpython*.1/salt/*"

See [[Wordpress Blog Site There is a .Xauthority file, and an .ICEauthority file, in /home/ed and both are owned by ed:ed. The former is empty (Tool0 bytes)]] for and the McNair Centerlatter has some non-UTF8 (I think?) characters in it. I's buildm not sure if either is an issue.

Using www.edegan.com/blog/wpI didn't see xserver-xorg-video-admin nouvea in the package list or any video driver module, so I configured the blog as followsinstalled nouveau:*Select Twenty Twenty as the theme dpkg -l*Add the permalink code to the .htaccess file, so that the URLs will work with postnames lsmod | more*Copy over images to wp apt install xserver-xorg-content/uploads (use cp video-a to maintain permissions)nouveau*Change the site name to https (after I'm not sure if I should be fixing the https setup, see below)my boot image or not... shutdown -r now lsmod | more

But that just put me back where I also addedwas: with a login loop problem. So I tried switching to lightdm:*CoBlocks (free)*Advanced Gutenberg (free)*Otter apt-get install lightdm

And it worked even before a reboot. After a reboot, I had a different login screen but the actual desktop looked the same. The .Xauthority file is now 51 bytes big and I didn't add Co-Authors Plus (https://wordpresssuddenly have a .org/plugins/coxsession-authors-plus/) as it hasn't been tested on the latest version errors, which contains a list of wordpressenvironment settings taking place... There are other plugins However, the machine then silently crashed that offer equivalent functionality if night and again the following morning. I need one later.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"

Other plugins I might want are:*Revive Old Post 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 (share with twitterwhich failed as installed already)and rebooted but got no GUI. Then I uninstalled and reinstalled gdm and everything seems fine now.*Optimole (optimize images) apt-get remove lightdm apt-get remove gdm3*WP Rocket (implement cache) apt-get install gdm3

NotesIncidentally, 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 is:*Twitter embedding: https://www.wpbeginner.com/wp-tutorials/how-to-display-recent-tweets-in-wordpress-with-twitter while [ 1 ] ; do echo -widgets/en "$(date +%T)\r" ; sleep 1; done

====Hardening WordpressImportant Moves====

I hardened kept the old versions of mediawiki and wordpress installation: https:and moved them to /bulk/wordpress.orgretired (using yyymmdd dates) mv /var/lib/mediawiki26082020 /bulk/retired/ mv /bulk/retired/mediawiki26082020 /bulk/retired/mediawiki20200826 mv /var/www/html/supportblog20200809 /articlebulk/hardening-wordpressretired/

Checking user rights in the dbase and changing their password: mysql -user=root -p use wordpress SELECT User FROM mysql.user; SHOW GRANTS FOR 'username'@'localhost'; SET PASSWORD FOR 'username'@'localhost'='newpassword'; (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.)==Install====

First, move the old folder to a new name, so that it is there for backup and then get the new install and unpack it.htaccess in wp-includes: # Block the include-only files.cd /bulk/installs <IfModule mod_rewritewget https://wordpress.c>org/latest.tar.gz RewriteEngine On RewriteBase mv /var/www/html/blog / RewriteRule ^wp-adminvar/includeswww/ - [F,L] RewriteRule !^wp-includeshtml/ - [S=3]blog20200809 RewriteRule ^wptar -includes/[^/]+\xzf latest.tar.php$ gz - [F,L] RewriteRule ^wp-includesC /jsvar/tinymcewww/langshtml/.+\.php - [F,L] RewriteRule ^wp-includescd /var/www/theme-compathtml/ - [F,L] <mv wordpress/ blog/IfModule> # BEGIN WordPresschown -R www-data:www-data blog

The #BEGIN WordPress tag is redundant as the Put an .htaccess file is 644 rootin that folder to restrict access while we work: vi blog/.htaccess <RequireAny> Require ip 192.168.2.1 </RequireAny>

If there are plugin installation issues then add Then set up the dbase by editing wp-config.php (it's easiest to modify the sample). cp blog/wp-config-sample.php blog/wp-config.php define('FS_METHOD','direct');vi blog/wp-config.php Note get some keys from: https://api.wordpress.org/secret-key/1.1/salt/

Once I'm all done with Then the theme etcbackend works - go to http://www., I can uncomment edegan.com/blog/wp-admin! However the following from wphealth check shows a missing required module and two missing recommended modules. Fix that: apt-get install php7.3-gd apt-get install php7.3-curl apt-configget install php7.php3-imagick define('DISALLOW_FILE_EDIT', true);apachectl restart

I changed See [[Wordpress Blog Site (Tool)]] for the site colors, added the logo and the tag line, and made other config changesMcNair Center's build.

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

To reduce the header spacingInstall plugins: .header-inner {*Yoast SEO padding: 1.5rem 0;*Wordfence Security*Disable Comments*Site Kit by Google (set up once live!) }*Pixabay

To remove the title from the landing pageI also added: .page-id-2169 .entry-title{*CoBlocks (free) display:none !important; } .page-id-2169 .entry-header { padding: 0;*Advanced Gutenberg (free) }*Otter

To do:*I need to didn't add social media icons! That might be as easy as adding the social media menu [Co-Authors Plus (https://wordpress.org/supportplugins/article/twentyco-authors-twentyplus/#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 hasn't been tested on the most popularlatest version of wordpress. It is apparently resource-heavyThere are other plugins that offer equivalent functionality if I need one later.

Other plugins I tried the following blocks pluginsmight want are:*'''Ultimate Addons for Guttenberg'''*It's free and adds some nice basic functionality**Revive Old Post blocks include: Post Carousel, Post Grid, Post Masonry, Post Timeline, Advanced Columns -- but customization is limited and I can't do one post(share with twitter)*'''Getwid''':Optimole (optimize images)**Pretty highly customizable. **Can specify which posts to show in 3 blocks WP Rocket (Custom Post Type, Post Carousel, and Post Sliderimplement cache) and can build custom templates to arrange how they are displayed**Post blocksNotes: Recent Posts, Custom Post Type, Post Carousel, and Post Slider*'''Redux''' Twitter embedding: https://www.wpbeginner.com/wp-tutorials/how- It's a templates library. You get 5 for free and they upsell hard.*'''ZeGuten''' to- Couldn't find it*'''Advanced Gutenberg''' display- It's free and widely used... *'''CoBlocks''' recent-tweets- Does the basics**Posts in-wordpress- Can't specify specific posts. Can do category.**Post Carousel with-twitter- Likewise.widgets/ ====Hardening Wordpress====*'''Stackable''':**It requested opt-in, which I didn't like, and it wants you to 'Go Premium'hardened the wordpress installation: https://wordpress. org/support/article/hardening-wordpress/**It has settings for everything! By far the most detailed configuration.**Useful blocksThis included:***Posts 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- candata. However, then you won't seem be able to specify a specific post***Advanced Columns install plugins etc. A compromise is -R root:root for blog and Grids then www-data:www- data for layout***Card wp-- could make posts links with buttonscontent.***Feature/Feature Grid Check file permissions: Everything is 644, except wp-- likewisecontent which is 755***Container? Might be helpfulChecking dbase rights and setting new passwords.*Changing passwords on old accounts (with posts, so the accounts shouldn'''Gutenberg Post Blocks'''**Untested with my version. Seems t be 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 htaccess file to push for an update to pro.impose restrictions*'''Magical Posts Display''' -- I dumped it for being too weird.*'''Otter Blocks'''Install Sucuri **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 mysql -user=root -p use wordpress SELECT User FROM mysql.user; SHOW GRANTS FOR 'username'@'localhost'; SET PASSWORD FOR 'username'@'localhost'='newpassword'; (widgetNote 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.)

Chosen block plugins.htaccess in wp-includes:*'''Getwid''' # Block the include-only files. <IfModule mod_rewrite.c> RewriteEngine On RewriteBase / RewriteRule ^wp-admin/includes/ - It's outstanding and embraces templates for serious bespoke customization[F,L]*'''Stackable''' RewriteRule !^wp-includes/ - For its option[S=3] RewriteRule ^wp-based customizationincludes/[^/]+\.php$ - [F,L]*I might add back '''coblocks''' RewriteRule ^wp-includes/js/tinymce/langs/.+\.php - [F, '''Advanced Gutenberg''' and '''Ultimate Addons for Gutenberg'''L] RewriteRule ^wp-includes/theme-compat/ - [F,L] </IfModule> # BEGIN WordPress

To set up HTTPS using Let's Encrypt, see httpsAdd the following to .htaccess in the wordpress dir://linuxize <files wp-config.com/post/secure-apache-with-let-s-encrypt-on-ubuntu-20-04php> order allow,deny deny from all </files>

Install it and make some directories..If there are plugin installation issues then add to wp-config.php apt updatedefine('FS_METHOD','direct'); apt install certbot openssl dhparam -out /Once I'm all done with the theme etc/ssl/certs/dhparam.pem 2048 takes ~20 secs mkdir , I can uncomment the following from wp-p /var/lib/letsencrypt/config.well-knownphp chgrp www-data /var/lib/letsencryptdefine('DISALLOW_FILE_EDIT', true);  chmod g+s /var/lib/letsencrypt====Redesign====

Set up I built a [[Branding]] palette, to standardize the config files vi /etc/apache2/conf-available/letsencryptcolors.conf Alias /.well-known/acme-challenge/ "/var/lib/letsencrypt/And I installed the Twentig plugin, to give extra configuration options.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-paramsI changed the site colors, added the logo and the tag line, and made other config changes.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"

Run certbot!To reduce the header spacing: certbot certonly --agree-tos --email ed@edegan.com header--webroot -w /var/lib/letsencrypt/ -d edegan.com -d www.edeganinner { padding: 1.com5rem 0; 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)To remove the title from the landing page: mv sites-available/000-default.conf sitespage-available/000id-default.conf2169 .bak vi sitesentry-available/edegan.com.conf <VirtualHost *:80> ServerName www.edegan.com ServerAdmin ed@edegan.comtitle{ Redirect permanent / https display://www.edegan.com/none !important; </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 page-s sitesid-available/edegan.com2169 .conf sitesentry-enabled/edegan.com.confheader { padding: 0; systemctl reload apache2}

Test it by going To do:*I need to add social media icons! That might be as easy as adding the social media menu [https://wwwwordpress.ssllabs.comorg/support/article/ssltesttwenty-twenty/#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.

FinallyI tried the following blocks plugins:*'''Ultimate Addons for Guttenberg'''*It's free and adds some nice basic functionality**Post blocks include: Post Carousel, Post Grid, edit /etc/cronPost Masonry, Post Timeline, Advanced Columns -- but customization is limited and I can't do one post*'''Getwid''':**Pretty highly customizable.d/certbot and append the following **Can specify which posts to the last line show in 3 blocks (after -renewCustom Post Type, Post Carousel, and Post Slider)and can build custom templates to arrange how they are displayed**Post blocks:Recent Posts, Custom Post Type, Post Carousel, and Post Slider *'''Redux''' --renewIt's a templates library. You get 5 for free and they upsell hard.*'''ZeGuten''' -hook "systemctl reload apache2"Couldn't find it certbot renew *'''Advanced Gutenberg''' -It's free and widely used... *'''CoBlocks''' -dry-run Tests Does the renewal!basics**Posts -- Can't specify specific posts. Can do category.====PDFEmbed Issue====**Post Carousel -- Likewise.*'''Stackable''':Enabling and requiring HTTPS causes an issue with PDFEmbed on mediawiki**It requested opt-in, where you get a blank frame. The PDF is still there, other images load fine, but the PDF frame wonwhich I didn't render the PDF. The problem is actually that the PDF is served with HTTP and the rest of the page is served with HTTPSlike, and Chrome (and perhaps other browsers) donit wants you to 'Go Premium't render the insecure content as a consequence (see [https://www.mediawiki.org/wiki/Topic:Uhgnq0wbmzfurbj0] **It has settings for a description of everything! By far the symptoms, but not 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.hooksSeems to work.php. 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. *'''Magical Posts Display''src' => 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)

===Install VSFTPD=== With the security restrictions on wordpress, I now need an FTP server to get files for themes, Chosen block 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*'''Getwid''' -to-setupIt's outstanding and embraces templates for serious bespoke customization*'''Stackable''' -ftp-serverFor its option-on-ubuntu-20-04-focal-fossa-linuxbased customization*I might add back '''coblocks''', '''Advanced Gutenberg''' and '''Ultimate Addons for Gutenberg'''

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_sslEmail=YES force_local_logins_ssl=YES ssl_tlsv1=YES ssl_sslv2=YES ssl_sslv3=YES /etc/init.d/vsftpd restart

I first set it up to use Google. Essentially you need to sign in to Google and set up an API in the console: https://console.developers.google.com/flows/enableapi?apiid=gmail&pli=1. However, this seemed to introduce a massive security hole unless you have G Suite, so I abandoned this approach. 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 it to 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 #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... (I uninstalled XML Sitemaps): https://www.edegan.com/blog/sitemap_index.xml ===HTTPS=== To set up HTTPS using Let's Encrypt, see https://linuxize.com/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 ===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

*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=== 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

===Final Configuration Changes=== Lock down apache somewhat further (as now there are directories that shouldnNote: Don't be listablechange the DocumentRoot to the blog, etc.) cd /etc/apache2 vi apache2.conf #Change as this will destroy the directory definitions. Notes that if -SomeOption is used then other options must have + or - in front design of them: <Directory /var/www/html> Options -Indexes +FollowSymLinks AllowOverride All Require all granted </Directory> systemctl reload apache2 #To debug: systemctl status apache2the wiki.service To make the blog The last rewrite rule will decide the default, edit /etc/apache/sites-available-edegan.com.conf, add an alias and change: RewriteRule ^/*$ %{DOCUMENT_ROOT}/mediawiki/index.php [L]site!