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[[category:McNair Admin]]
 
Haas PhD Students have two new servers and this page details their configuration.
 
'''NOTE THAT THE [[Posgres Server Configuration|CONFIGURATION OF POSTGRES2]] HAS ITS OWN PAGE'''
==IP Addresses==
During the configuration phase the The servers will be onhave been moved to a colo. Their new IP addresses are:*phd-pgsqlwiki: 128.32.66204.163202*phd-lamppostgres2: 128.32.66204.203 The domain names wiki.haas.berkeley.edu and postgres.haas.berkeley.edu should be mapped to these IP addresses shortly.164
==Base configurations==
Notable additional packages on pgsql are:
*postgresql.x86_64 8.1.22-1.el5_5.1
 
==Before we start==
 
===On Both Machines===
 
====Creating Users====
 
Assuming that you have root, you can create user accounts and give them root too. The process is:
 
First great the users group, checking the last group number:
cat /etc/group
/usr/sbin/groupadd -g 515 username
 
Then add the user
/usr/sbin/useradd -g username -G root -s /bin/bash -p xxxx -d /home/username -m username
where g is the primary group, G is other groups, p sets a password,
d declares a home directory and m makes the directory
 
Change the user's password:
passwd username
 
And add the user to the sudoers file
echo 'username ALL=(ALL) ALL' >> /etc/sudoers
 
To delete a user:
/usr/sbin/userdel -r roger
where r removes the home directory
 
And to remove their group
/usr/sbin/groupdel username
 
====Mounting bear====
It is very useful to mount your R drive
 
mkdir /mnt/ed
mount -t cifs //bear/ed_egan/ /mnt/ed -o user=haas\\ed_egan
or:
mount -t cifs //bear/ed_egan/ /mnt/ed -o user=ed_egan
(which ever works)
 
for the inclusion into fstab or other more sophisticated approaches there is a [http://wiki.centos.org/TipsAndTricks/WindowsShares Centos help page].
==Package additions/upgrades/removals==
On lamp:
*Upgrade PhP to 5.2.17+
*Install MySQL (the server)
*Install Mediawiki
*Install MySQL (the server)
*Remove ftp
On pgsql:
*Remove httpd, mysql, ftp, sendmail, inn and other servers we don't need
*Upgrade python to version 3.1
*Install TrueCrypt
===Install MediawikiOn the Wiki Server=== Install the public key for the ATrpms repository: rpm --import http://packages.atrpms.net/RPM-GPG-KEY.atrpms
Enable the ATrpms repository by adding a file called atrpms.repos to /etc/yum.repos.d/====Upgrading PhP====
[atrpms] name=Red Hat Enterprise Linux 5 - x86_64 - ATrpms baseurl=http://dlIn order to upgrade PhP (or install a more recent version of MySQL) we will probably need access to a different repository.atrpms.net/el5-x86_64/atrpms/stable failovermethod=priority # requires stable [atrpms-testing] name=Red Hat Enterprise Linux 5 - x86_64 - ATrpms testing baseurl=http://dl.atrpms.net/el5-x86_64/atrpms/testing failovermethod=priority enabled=0 # requires stable and testing [atrpms-bleeding] name=Red Hat Enterprise Linux 5 - x86_64 - ATrpms bleeding baseurl=http://dl.atrpms.net/el5-x86_64/atrpms/bleeding failovermethod=priority enabled=0
Checking online at [You can automatically add the Atomicorp repository using: wget -q -O - http://packageswww.atrpmsatomicorp.net/dist/el5com/mediawikiinstallers/ ATrpms] shows the package contains version 1.15. So do:atomic | sh
yum It has PhP version 5.2.17-1.el5.art and MySQL version 5.1.55-1.el5.art. Also install mediawikipgp-mysql.
To run the configuration script through a browser, create an alias in Apache's httpd yum list php #We were running 5.1.6-27.el5_5.conf: Alias /wiki "/var/www/wiki" 3 <Directory "/var/www/wiki"> Options Indexes MultiViews AllowOverride None Order allow,deny Allow from allyum upgrade php </Directory>yum install php-mysql
====Install MySQL====
Install MySql(and update the client): yum install mysql mysql-server
Start the server:
Set a root password for the database:
mysqladmin -u root password cheit
 
At this point you should configure and test the webserver and PhP, which is discussed below.
 
====Install Mediawiki====
 
There is no good version of mediawiki available from a yum repo. So you should do this manually. It isn't painful. Detailed instructions (you won't need them) are available from:
*[http://www.mediawiki.org/wiki/Installation MediaWiki's Installation Page]
*[http://www.mediawiki.org/wiki/Manual:Installing_MediaWiki Mediawiki's Installing MediaWiki Page]
 
First change to your home directory (or somewhere 'safe') then
 
wget http://download.wikimedia.org/mediawiki/1.16/mediawiki-1.16.2.tar.gz
 
Then untar the package, either using the --owner option or as a non-root user to force extracted file ownernship to be other than 1000
 
su username
tar xvzf mediawiki-*.tar.gz
sudo su
 
Now copy the files into the 'right' location and change permissions
 
mkdir /var/www/html/w
cp -r mediawiki-1.16.2/* /var/www/html/w/
chmod a+w /var/www/html/w/config
 
Install ImageMagick using Yum:
 
yum install glib glib2 libpng libjpeg libtiff ghostscript freetype ImageMagick ImageMagick-perl
 
===On Postgres.Haas===
 
====Removing Unneeded Servers====
 
Remove the web, mail, news and other unneeded servers. Consider removing MySQL (but leave it for now):
yum groupremove "Web Server"
yum groupremove "Mail Server"
yum groupremove "News Server"
 
====Install and Configure PostgreSQL====
 
To install Postgres with the PLs (Procedural Languages) do:
 
yum install postgresql postgresql-server postgresql-pl postgresql-libs
 
Start the service with:
 
/sbin/chkconfig postgresql on
/sbin/service postgresql start
 
Add the following to ''/etc/sysconfig/iptables'' to allow access through the firewall:
 
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp -s 128.32.66.0/24 --dport 5432 -j ACCEPT
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp -s 128.32.67.0/24 --dport 5432 -j ACCEPT
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp -s 128.32.74.0/24 --dport 5432 -j ACCEPT
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp -s 10.136.0.0/23 --dport 5432 -j ACCEPT
 
Restart the IPtables so the changes take effect:
 
service iptables restart
 
Now create some users on the database server:
 
su postgres
createuser root
createuser -P ed_egan
exit
 
Check the version of Postgres and Perl installed:
 
psql -c "select version();" template1
PostgreSQL 8.1.23
perl -v
v5.8.8
 
Now add the perl PL to the standard template so that all new databases will be perl enabled:
 
createlang plperl template1
 
Check the specs on the machine for the configuration:
 
cat /proc/meminfo
MemTotal: 8181356 kB
cat /proc/cpuinfo
2 x Quad core CPUs
cache size: 2048 KB
model name: Intel(R) Xeon(TM) CPU 2.80GHz
 
Review the performance tuning section on the [[Working with PostgreSQL]] page, and possibly on [http://wiki.postgresql.org/wiki/Tuning_Your_PostgreSQL_Server the official quick guide page] and make the following changes to ''/var/lib/pgsql/data/postgresql.conf'':
listen_addresses = '*'
port = 5432
checkpoint_segments=32
This is equivalent to every 512Mb
shared_buffers = 786432
#1gig = 1073741824 => '''131072''' * 8 * 1024, currently trying 6gig
The recommendation is to use around 10-15% of RAM,
but for a single user db something higher seems better
This is in 8K blocks
work_mem = 2097152
#In KB, so 1024 * 512=> 524288 = 512Mb,
Note that this might be a little too high for aggresively stacked queries
But this seems to be the bite point for performance.
maintenance_work_mem = 262144
#786432 => 6 * 1073741824 => 6 * 131072 * 8 * 1024
This is how much VACUUM will use - it doesn't make a huge difference
effective_cache_size = 1835008
#In 8k blocks. This is the maximum memory that postgres will allocate.
It is currently set to 14Gb.
 
Alter ''/var/lib/pgsql/data/pg_hba.conf'' to include the lines (under IPv4):
 
host all all 128.32.74.0/24 md5
host all all 128.32.66.0/24 md5
host all all 128.32.67.0/24 md5
host all all 10.136.0.0/23 md5
 
Note that this will use encrypted database passwords, and that all accounts must have non-null passwords (i.e. be created with createuser -P username)
 
And restart Postgres:
 
/sbin/service postgresql restart
 
====Upgrade Python?====
Find out which version of Python is currently installed:
yum list python #lists version 2.4.3-27.el5_5.3
 
There are tarballs of version 3.2 available from [http://www.python.org/download/ Python.org's download area], but it seems too recent to have got rpm/yum support as yet.
==Configuration==
*Configure Postgre
===Mounting bearOn the Wiki Server===
mount -t cifs //bear/ed_egan/ /mnt -o user=ed_egan for the inclusion into fstab or other more sophisticated approaches there is a [http://wiki.centos.org/TipsAndTricks/WindowsShares Centos help page]. ===Configure Apache====
Edit the main config file:
/sbin/ifconfig
====Configure IP Tables====
For lamp we need a hole for port 80 for the webserver. For pgsql we need a hole for our clientware. General documentation is available in [http://wiki.centos.org/HowTos/Network/IPTables iptables from Centos]
/etc/init.d/iptables restart
===Configure MediaWiki=Test the webserver and PhP====
Browse to http:/wiki/128.32.66.164/ you should see the test page. Write the following text file to /var/www/html/Test.php:  <?php phpinfo(); ?> Browse to http://128.32.66.164/Test.php and you should see the PhP version page.  ====Configure MediaWiki==== Browse to http://128.32.66.164/w/config/index.php (having set an Apache alias above), and set the following setting:
WikiName: HaasPhDWiki
Contact: kimg@haas.berkeley.edu
Admin password and dbase password: cheit
All other setting settings as default(you do have superuser on the dbase so tick that box) Now move the LocalSettings.php file, change the permissions, and remove the config directory.  cp config/LocalSettings.php LocalSettings.php chmod 600 LocalSettings.php chown apache LocalSettings.php mkdir /mnt/ed/configbak cp -r ./config /mnt/ed/configbak/ rm -rf ./config You can now view your Wiki at http://128.32.66.164/w/index.php We will now do the extensions and fine detail configuration. Change the following settings in LocalSettings.php  $wgEnableUploads = true; #Changed by Ed $wgUseTeX = true; #Changed by Ed $wgLogo = "/icons/wiki_logo.gif"; $wgArticlePath = "/wiki/$1"; $wgUsePathInfo = true; $wgFavicon = "$wgScriptPath/favicon.ico"; $wgGroupPermissions['*']['edit'] = false; #Stops editing without an account, globally  Change the permissions on the images directory:  chmod a+w /var/www/html/w/images Add the info for the side bar (this might be restored from a backup):  Edit (or create): http://wiki.haas.berkeley.edu/wiki/MediaWiki:Sidebar * navigation ** mainpage|mainpage-description ** research_computing |Research Computing ** portal-url|Community ** currentevents-url|currentevents ** recentchanges-url|recentchanges ** randompage-url|randompage ** helppage|help * Group Pages ** accounting|Accounting ** bpp|BPP ** finance|Finance ** management_of_organizations|Management of Organizations ** marketing|Marketing ** operations_and_it_management|Operations and IT Management ** real_estate|Real Estate * SEARCH * TOOLBOX * LANGUAGES   And populate the wiki using the Special:Import page. Note that you can get a list of all pages on a wiki using the API:  http://wiki.haas.berkeley.edu/w/api.php?action=query&list=allpages&aplimit=500 Mount the Backup Directory: mkdir /mnt/wiki mount -t cifs //bear.haas.berkeley.edu/wiki/bulk/backup /mnt/wiki/ -o user=haas\\wiki
Mount the Images Directory:
mv /var/www/html/w/images /var/www/html/w/imagesorg
mkdir images
mount -t cifs //bear.haas.berkeley.edu/wiki/bulk/media /var/www/html/w/images -o user=haas\\wiki
mkdir /var/www/html/w/image/tmp
Backup Change the LocalSettingsmax_upload_filesize to 8M in php.php file and copy it upini: cp /var/www/wiki/config/LocalSettings.vi php /var/www/wiki/config/LocalSettings.php.bakini cp /var/www/wiki/config/LocalSettings.php /var/www/wiki/LocalSettings.php#edit max_upload_filesize variable
==Data==Restart the webserver: /etc/init.d/httpd restart
For lamp=====Do the extensions:===== '''Simple security'''Get it from: http://www.mediawiki.org/wiki/Extension:Simple_Security  tar -xzf /mnt/ed/HaasWiki/SimpleSecurity-MW1.16-r62389.tar.gz -C /var/www/html/w/extensions '''UserMerge'''Get it from: http://www.mediawiki.org/wiki/Extension:UserMerge  tar -xzf /mnt/ed/HaasWiki/UserMerge-MW1.16-r66255.tar.gz -C /var/www/html/w/extensions '''RenameUser'''Get it from:http://www.mediawiki.org/wiki/Extension:Rename_user  tar -xzf /mnt/ed/HaasWiki/Renameuser-MW1.16-r66255.tar.gz -C /var/www/html/w/extensions '''ImportUsers'''Get it from: http://www.mediawiki.org/wiki/Extension:ImportUsers  tar -xzf /mnt/ed/HaasWiki/ImportUsers-MW1.16-r62790.tar.gz -C /var/www/html/w/extensions '''UserRightsList'''Get it from:http://www.mediawiki.org/wiki/Extension:UserRightsList*Import Wiki pages*Change links tar -xzf /mnt/ed/HaasWiki/UserRightsList.0.52.tgz -C /var/www/html/w/extensions '''MultipleUpload'''Get it from: http://www.mediawiki.org/wiki/Extension:MultiUpload  tar -xzf /mnt/ed/HaasWiki/MultiUpload-MW1.16-r78542.tar.gz -C /var/www/html/w/extensions  Add to LocalSettings.php  #SimpleSecurity $wgSecurityUseDBHook = true; # Add this to pdfs and repository filesenable the experimental DB hook for stronger security include_once("{$IP}/extensions/SimpleSecurity/SimpleSecurity.php"); # All other SimpleSecurity directives MUST be specified after the include or the defaults will override them. $wgSecurityRenderInfo = true; $wgSecurityAllowUnreadableLinks = false; $wgPageRestrictions['Category:Servers']['read'] = 'sysop'; $wgSecurityExtraGroups = array( 'students' => 'Students', 'faculty' => 'Faculty, 'staff' => 'Staff', ); #UserMerge require_once( "$IP/extensions/UserMerge/UserMerge.php" ); $wgGroupPermissions['bureaucrat']['usermerge'] = true; #RenameUser require_once("$IP/extensions/Renameuser/Renameuser.php"); #ImportUsers require_once("$IP/extensions/ImportUsers/SpecialImportUsers.php"); #UserRightsList require_once("$IP/extensions/UserRightsList/UserRightsList.php"); #MultipleUpload require_once("$IP/extensions/MultiUpload/SpecialMultipleUpload.php"); $wgMaxUploadFiles=10; [[admin_classification::IT Build| ]]

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