Installation of OTRS 3.x on CentOS 5.5
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How To install OTRS 3.01 on CentOS 5.5
Minimum prerequisites
A basic install of CentOS 5.5 with these settings:
- CentOS SELinux is set to permissive.
- CentOS firewall must have HTTP as trusted.
OTRS requires a properly configured & running Apache webserver & backend database. The basic install of CentOS 5.5 included an Apache install with no database. Steps are provided below to do a basic configuration of Apache & MySQL (my current database of choice).
A working Internet connection.
Apache
Verify that Apache (httpd) is installed by using the below command. Confirm that httpd<something> is under installed packages.
# yum list httpd Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * addons: mirror.trouble-free.net * base: mirror.steadfast.net * extras: mirror.trouble-free.net * updates: styx.biochem.wfubmc.edu Installed Packages httpd.x86_64 2.2.3-43.el5.centos installed
Verify default run level of httpd:
# chkconfig --list httpd httpd 0:off 1:off 2:off 3:off 4:off 5:off 6:off
Enable httpd on run levels:
# chkconfig httpd on
Verify run levels enabled for httpd:
# chkconfig --list httpd httpd 0:off 1:off 2:on 3:on 4:on 5:on 6:off
Start httpd:
# service httpd start
MySQL
I installed MySQL (mysqld) using yum versus RPM or source. You can use a group command to install MySQL group or select individual packages. I opted for individual packages.
I provided steps for individual and group install below.
Install MySQL Database group
Use yum to query which packages are available in MySQL group to determine whether you want group install:
# yum groupinfo 'MySQL Database' Loaded plugins: fastestmirror Setting up Group Process Loading mirror speeds from cached hostfile * addons: mirror.steadfast.net * base: mirror.nexcess.net * extras: mirror.steadfast.net * updates: mirrors.gigenet.com Group: MySQL Database Description: This package group contains packages useful for use with MySQL. Mandatory Packages: mysql Default Packages: MySQL-python libdbi-dbd-mysql mysql-connector-odbc mysql-server perl-DBD-MySQL unixODBC Optional Packages: mod_auth_mysql mysql-bench mysql-devel php-mysql qt-MySQL
To install MySQL group use this command (skip this step to install individual packages):
# yum groupinstall 'MySQL Database'
Install MySQL individual packages
Here are commands I used to install specific packages:
# yum install mysql-server mysql php-mysql Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * addons: mirror.trouble-free.net * base: mirror.steadfast.net * extras: mirror.trouble-free.net * updates: styx.biochem.wfubmc.edu Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package mysql.i386 0:5.0.77-4.el5_5.3 set to be updated --> Processing Dependency: perl(DBI) for package: mysql ---> Package mysql.x86_64 0:5.0.77-4.el5_5.3 set to be updated ---> Package mysql-server.x86_64 0:5.0.77-4.el5_5.3 set to be updated --> Processing Dependency: perl-DBD-MySQL for package: mysql-server ---> Package php-mysql.x86_64 0:5.1.6-27.el5 set to be updated --> Processing Dependency: php-common = 5.1.6-27.el5 for package: php-mysql --> Processing Dependency: php-pdo for package: php-mysql --> Running transaction check ---> Package perl-DBD-MySQL.x86_64 0:3.0007-2.el5 set to be updated ---> Package perl-DBI.x86_64 0:1.52-2.el5 set to be updated ---> Package php-common.x86_64 0:5.1.6-27.el5 set to be updated ---> Package php-pdo.x86_64 0:5.1.6-27.el5 set to be updated --> Finished Dependency Resolution Dependencies Resolved ================================================================================ Package Arch Version Repository Size ================================================================================ Installing: mysql i386 5.0.77-4.el5_5.3 updates 4.8 M mysql x86_64 5.0.77-4.el5_5.3 updates 4.8 M mysql-server x86_64 5.0.77-4.el5_5.3 updates 9.8 M php-mysql x86_64 5.1.6-27.el5 base 89 k Installing for dependencies: perl-DBD-MySQL x86_64 3.0007-2.el5 base 148 k perl-DBI x86_64 1.52-2.el5 base 600 k php-common x86_64 5.1.6-27.el5 base 153 k php-pdo x86_64 5.1.6-27.el5 base 66 k Transaction Summary ================================================================================ Install 8 Package(s) Upgrade 0 Package(s) Total download size: 20 M Is this ok [y/N]: y Downloading Packages: (1/8): php-pdo-5.1.6-27.el5.x86_64.rpm | 66 kB 00:00 (2/8): php-mysql-5.1.6-27.el5.x86_64.rpm | 89 kB 00:00 (3/8): perl-DBD-MySQL-3.0007-2.el5.x86_64.rpm | 148 kB 00:00 (4/8): php-common-5.1.6-27.el5.x86_64.rpm | 153 kB 00:00 (5/8): perl-DBI-1.52-2.el5.x86_64.rpm | 600 kB 00:00 (6/8): mysql-5.0.77-4.el5_5.3.i386.rpm | 4.8 MB 00:17 (7/8): mysql-5.0.77-4.el5_5.3.x86_64.rpm | 4.8 MB 00:15 (8/8): mysql-server-5.0.77-4.el5_5.3.x86_64.rpm | 9.8 MB 00:24 -------------------------------------------------------------------------------- Total 355 kB/s | 20 MB 00:58 Running rpm_check_debug Running Transaction Test Finished Transaction Test Transaction Test Succeeded Running Transaction Installing : perl-DBI 1/8 Installing : mysql 2/8 Installing : php-common 3/8 Installing : php-pdo 4/8 Installing : perl-DBD-MySQL 5/8 Installing : mysql 6/8 Installing : mysql-server 7/8 Installing : php-mysql 8/8 Installed: mysql.i386 0:5.0.77-4.el5_5.3 mysql.x86_64 0:5.0.77-4.el5_5.3 mysql-server.x86_64 0:5.0.77-4.el5_5.3 php-mysql.x86_64 0:5.1.6-27.el5 Dependency Installed: perl-DBD-MySQL.x86_64 0:3.0007-2.el5 perl-DBI.x86_64 0:1.52-2.el5 php-common.x86_64 0:5.1.6-27.el5 php-pdo.x86_64 0:5.1.6-27.el5 Complete!
mysqld has been installed but not configured for run level:
# chkconfig --list mysqld mysqld 0:off 1:off 2:off 3:off 4:off 5:off 6:off
Set mysqld to run level 2, 3, & 5:
# chkconfig --levels 235 mysqld on
Confirm run levels for mysqld:
# chkconfig --list mysqld mysqld 0:off 1:off 2:on 3:on 4:off 5:on 6:off
Starting MySQL 1st Time
Start mysqld. Note that when you run mysqld for first time you will receive some friendly reminders:
# service mysqld start <<text removed for clarity>> Starting MySQL: [ OK ]
We now follow the great directions provided & run the mysql secure installation script:
# /usr/bin/mysql_secure_installation
You will be presented with some questions regarding securing your mysqld installation:
<<some text removed for clarity>> Set root password? [Y/n] Y New password: Re-enter new password: Password updated successfully! Reloading privilege tables.. ... Success! Remove anonymous users? [Y/n] Y ... Success! Disallow root login remotely? [Y/n] Y ... Success! Remove test database and access to it? [Y/n] Y - Dropping test database... ... Success! - Removing privileges on test database... ... Success! Reload privilege tables now? [Y/n] Y ... Success! Cleaning up... All done! If you've completed all of the above steps, your MySQL installation should now be secure. Thanks for using MySQL!
MySQL should be ready for OTRS.
OTRS
$ wget http://ftp.otrs.org/pub/otrs/RPMS/fedora/4/otrs-3.0.1-01.noarch.rpm
Verify file integrity by matching MD5 hash with entry on http://otrs.org/download/
md5sum otrs-3.0.1-01.noarch.rpm e1ab127ea6b70ed1387447d340dfc4e0 otrs-3.0.1-01.noarch.rpm
Resolve dependencies
Determine the dependencies of otrs rpm file:
# rpm -qpR otrs-3.0.1-01.noarch.rpm perl perl-DBI perl-DBD-MySQL perl-URI mod_perl httpd mysql mysql-server procmail perl-libwww-perl perl-Net-DNS perl-IO-Socket-SSL perl-XML-Parser /bin/sh
You can query your system or try to install & read errors to determine which packages are missing. I opted to install & read errors:
# rpm -ivh otrs-3.0.1-01.noarch.rpm
error: Failed dependencies:
perl-URI is needed by otrs-3.0.0-beta1.noarch
mod_perl is needed by otrs-3.0.0-beta1.noarch
perl-libwww-perl is needed by otrs-3.0.0-beta1.noarch
perl-Net-DNS is needed by otrs-3.0.0-beta1.noarch
perl-IO-Socket-SSL is needed by otrs-3.0.0-beta1.noarch
perl-XML-Parser is needed by otrs-3.0.0-beta1.noarch
Now I know which dependencies to install.
Note: Optionally you can install RPM using yum & yum should automatically resolve your dependencies. However, since you are reading this I suspect you need practice.
Note: You can install all dependencies at once using one yum command simply put space between each package (like I did with mysql single packages above). However, since you are reading this I suspect you need the practice. :)
Resolve perl-URI dependency:
# yum install perl-URI Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * addons: mirror.trouble-free.net * base: mirror.steadfast.net * extras: mirror.trouble-free.net * updates: styx.biochem.wfubmc.edu Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package perl-URI.noarch 0:1.35-3 set to be updated --> Finished Dependency Resolution Dependencies Resolved ================================================================================ Package Arch Version Repository Size ================================================================================ Installing: perl-URI noarch 1.35-3 base 116 k Transaction Summary ================================================================================ Install 1 Package(s) Upgrade 0 Package(s) Total download size: 116 k Is this ok [y/N]: y Downloading Packages: perl-URI-1.35-3.noarch.rpm | 116 kB 00:00 Running rpm_check_debug Running Transaction Test Finished Transaction Test Transaction Test Succeeded Running Transaction Installing : perl-URI 1/1 Installed: perl-URI.noarch 0:1.35-3 Complete!
Resolve mod_perl dependency:
# yum install mod_perl Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * addons: mirror.trouble-free.net * base: mirror.steadfast.net * extras: mirror.trouble-free.net * updates: styx.biochem.wfubmc.edu Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package mod_perl.x86_64 0:2.0.4-6.el5 set to be updated --> Processing Dependency: perl(BSD::Resource) for package: mod_perl --> Running transaction check ---> Package perl-BSD-Resource.x86_64 0:1.28-1.fc6.1 set to be updated --> Finished Dependency Resolution Dependencies Resolved ================================================================================ Package Arch Version Repository Size ================================================================================ Installing: mod_perl x86_64 2.0.4-6.el5 base 4.0 M Installing for dependencies: perl-BSD-Resource x86_64 1.28-1.fc6.1 base 29 k Transaction Summary ================================================================================ Install 2 Package(s) Upgrade 0 Package(s) Total download size: 4.1 M Is this ok [y/N]: y Downloading Packages: (1/2): perl-BSD-Resource-1.28-1.fc6.1.x86_64.rpm | 29 kB 00:00 (2/2): mod_perl-2.0.4-6.el5.x86_64.rpm | 4.0 MB 00:00 -------------------------------------------------------------------------------- Total 3.9 MB/s | 4.1 MB 00:01 Running rpm_check_debug Running Transaction Test Finished Transaction Test Transaction Test Succeeded Running Transaction Installing : perl-BSD-Resource 1/2 Installing : mod_perl 2/2 Installed: mod_perl.x86_64 0:2.0.4-6.el5 Dependency Installed: perl-BSD-Resource.x86_64 0:1.28-1.fc6.1 Complete!
Resolve perl-libwww-perl dependency:
# yum install perl-libwww-perl Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * addons: mirror.trouble-free.net * base: mirror.steadfast.net * extras: mirror.trouble-free.net * updates: styx.biochem.wfubmc.edu Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package perl-libwww-perl.noarch 0:5.805-1.1.1 set to be updated --> Processing Dependency: perl-HTML-Parser >= 3.33 for package: perl-libwww-perl --> Processing Dependency: perl(HTML::Entities) for package: perl-libwww-perl --> Processing Dependency: perl(Compress::Zlib) for package: perl-libwww-perl --> Running transaction check ---> Package perl-Compress-Zlib.x86_64 0:1.42-1.fc6 set to be updated ---> Package perl-HTML-Parser.x86_64 0:3.55-1.fc6 set to be updated --> Processing Dependency: perl-HTML-Tagset >= 3.03 for package: perl-HTML-Parser --> Processing Dependency: perl(HTML::Tagset) for package: perl-HTML-Parser --> Running transaction check ---> Package perl-HTML-Tagset.noarch 0:3.10-2.1.1 set to be updated --> Finished Dependency Resolution Dependencies Resolved ================================================================================ Package Arch Version Repository Size ================================================================================ Installing: perl-libwww-perl noarch 5.805-1.1.1 base 376 k Installing for dependencies: perl-Compress-Zlib x86_64 1.42-1.fc6 base 52 k perl-HTML-Parser x86_64 3.55-1.fc6 base 92 k perl-HTML-Tagset noarch 3.10-2.1.1 base 15 k Transaction Summary ================================================================================ Install 4 Package(s) Upgrade 0 Package(s) Total download size: 534 k Is this ok [y/N]: y Downloading Packages: (1/4): perl-HTML-Tagset-3.10-2.1.1.noarch.rpm | 15 kB 00:00 (2/4): perl-Compress-Zlib-1.42-1.fc6.x86_64.rpm | 52 kB 00:00 (3/4): perl-HTML-Parser-3.55-1.fc6.x86_64.rpm | 92 kB 00:00 (4/4): perl-libwww-perl-5.805-1.1.1.noarch.rpm | 376 kB 00:00 -------------------------------------------------------------------------------- Total 858 kB/s | 534 kB 00:00 Running rpm_check_debug Running Transaction Test Finished Transaction Test Transaction Test Succeeded Running Transaction Installing : perl-Compress-Zlib 1/4 Installing : perl-HTML-Tagset 2/4 Installing : perl-HTML-Parser 3/4 Installing : perl-libwww-perl 4/4 Installed: perl-libwww-perl.noarch 0:5.805-1.1.1 Dependency Installed: perl-Compress-Zlib.x86_64 0:1.42-1.fc6 perl-HTML-Parser.x86_64 0:3.55-1.fc6 perl-HTML-Tagset.noarch 0:3.10-2.1.1 Complete!
Resolve perl-Net-DNS dependency:
[root@null-0023ae875f47 opt]# yum install perl-Net-DNS Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * addons: mirror.trouble-free.net * base: mirror.steadfast.net * extras: mirror.trouble-free.net * updates: styx.biochem.wfubmc.edu Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package perl-Net-DNS.x86_64 0:0.59-3.el5 set to be updated --> Processing Dependency: perl(Digest::HMAC_MD5) for package: perl-Net-DNS --> Processing Dependency: perl(Net::IP) for package: perl-Net-DNS --> Running transaction check ---> Package perl-Digest-HMAC.noarch 0:1.01-15 set to be updated --> Processing Dependency: perl(Digest::SHA1) for package: perl-Digest-HMAC ---> Package perl-Net-IP.noarch 0:1.25-2.fc6 set to be updated --> Running transaction check ---> Package perl-Digest-SHA1.x86_64 0:2.11-1.2.1 set to be updated --> Finished Dependency Resolution Dependencies Resolved ================================================================================ Package Arch Version Repository Size ================================================================================ Installing: perl-Net-DNS x86_64 0.59-3.el5 base 215 k Installing for dependencies: perl-Digest-HMAC noarch 1.01-15 base 12 k perl-Digest-SHA1 x86_64 2.11-1.2.1 base 49 k perl-Net-IP noarch 1.25-2.fc6 base 31 k Transaction Summary ================================================================================ Install 4 Package(s) Upgrade 0 Package(s) Total download size: 306 k Is this ok [y/N]: y Downloading Packages: (1/4): perl-Digest-HMAC-1.01-15.noarch.rpm | 12 kB 00:00 (2/4): perl-Net-IP-1.25-2.fc6.noarch.rpm | 31 kB 00:00 (3/4): perl-Digest-SHA1-2.11-1.2.1.x86_64.rpm | 49 kB 00:00 (4/4): perl-Net-DNS-0.59-3.el5.x86_64.rpm | 215 kB 00:00 -------------------------------------------------------------------------------- Total 565 kB/s | 306 kB 00:00 Running rpm_check_debug Running Transaction Test Finished Transaction Test Transaction Test Succeeded Running Transaction Installing : perl-Digest-SHA1 1/4 Installing : perl-Digest-HMAC 2/4 Installing : perl-Net-IP 3/4 Installing : perl-Net-DNS 4/4 Installed: perl-Net-DNS.x86_64 0:0.59-3.el5 Dependency Installed: perl-Digest-HMAC.noarch 0:1.01-15 perl-Digest-SHA1.x86_64 0:2.11-1.2.1 perl-Net-IP.noarch 0:1.25-2.fc6 Complete!
Resolve perl-IO-Socket-SSL dependency:
# perl-IO-Socket-SSL -bash: perl-IO-Socket-SSL: command not found [root@null-0023ae875f47 opt]# perl-IO-Socket-SSyum L -bash: perl-IO-Socket-SSyum: command not found [root@null-0023ae875f47 opt]# yum install perl-IO-Socket-SSL Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * addons: mirror.trouble-free.net * base: mirror.steadfast.net * extras: mirror.trouble-free.net * updates: styx.biochem.wfubmc.edu Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package perl-IO-Socket-SSL.noarch 0:1.01-1.fc6 set to be updated --> Processing Dependency: perl(Net::SSLeay) >= 1.21 for package: perl-IO-Socket-SSL --> Running transaction check ---> Package perl-Net-SSLeay.x86_64 0:1.30-4.fc6 set to be updated --> Finished Dependency Resolution Dependencies Resolved ================================================================================ Package Arch Version Repository Size ================================================================================ Installing: perl-IO-Socket-SSL noarch 1.01-1.fc6 base 49 k Installing for dependencies: perl-Net-SSLeay x86_64 1.30-4.fc6 base 192 k Transaction Summary ================================================================================ Install 2 Package(s) Upgrade 0 Package(s) Total download size: 241 k Is this ok [y/N]: y Downloading Packages: (1/2): perl-IO-Socket-SSL-1.01-1.fc6.noarch.rpm | 49 kB 00:00 (2/2): perl-Net-SSLeay-1.30-4.fc6.x86_64.rpm | 192 kB 00:00 -------------------------------------------------------------------------------- Total 785 kB/s | 241 kB 00:00 Running rpm_check_debug Running Transaction Test Finished Transaction Test Transaction Test Succeeded Running Transaction Installing : perl-Net-SSLeay 1/2 Installing : perl-IO-Socket-SSL 2/2 Installed: perl-IO-Socket-SSL.noarch 0:1.01-1.fc6 Dependency Installed: perl-Net-SSLeay.x86_64 0:1.30-4.fc6 Complete!
Resolve perl-XML-Parser dependency:
# yum install perl-XML-Parser Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * addons: mirror.trouble-free.net * base: mirror.steadfast.net * extras: mirror.trouble-free.net * updates: styx.biochem.wfubmc.edu Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package perl-XML-Parser.x86_64 0:2.34-6.1.2.2.1 set to be updated --> Finished Dependency Resolution Dependencies Resolved ================================================================================ Package Arch Version Repository Size ================================================================================ Installing: perl-XML-Parser x86_64 2.34-6.1.2.2.1 base 210 k Transaction Summary ================================================================================ Install 1 Package(s) Upgrade 0 Package(s) Total download size: 210 k Is this ok [y/N]: y Downloading Packages: perl-XML-Parser-2.34-6.1.2.2.1.x86_64.rpm | 210 kB 00:00 Running rpm_check_debug Running Transaction Test Finished Transaction Test Transaction Test Succeeded Running Transaction Installing : perl-XML-Parser 1/1 Installed: perl-XML-Parser.x86_64 0:2.34-6.1.2.2.1 Complete!
Install via RPM command
Install OTRS RPM using yum:
# yum --nogpgcheck install otrs-3.0.1-01.noarch.rpm
<text removed for clarity>
Next steps:
[httpd services]
Restart httpd 'service httpd restart'
[mysqld service]
Start mysqld 'service mysqld start'
[install the OTRS database]
Use a webbrowser and open this link:
http://CentOShostname/otrs/installer.pl
[OTRS services]
Start OTRS 'service otrs start' (service otrs {start|stop|status|restart).
((enjoy))
Your OTRS Team
Cleanup : otrs 3/3
Dependency Installed:
perl-TimeDate.noarch 1:1.16-5.el5
Updated:
otrs.noarch 0:3.0.1-01
Complete!
Basic Apache config
Make backup of httpd.conf file.
# cp httpd.conf httpd.conf.back
Edit httpd.conf file:
# vi httpd.conf
At minimum update these entries:
ServerAdmin ptay@yourdomain.com ServerName [hostname or IP address]:80 Listen yourIP:80
Restart httpd:
# service httpd restart Stopping httpd: [ OK ] Starting httpd: [ OK ]
Setup MySQL database
Follow simple steps provided on OTRS docs page. Thank you OTRS devs for providing a simple web installer!
If on same machine as OTRS install you point your browser to http://localhost/otrs/installer.pl otherwise replace localhost with domain name or IP address.
Logging into OTRS
After configuring MySQL via web installer you should be able to log into OTRS via http://IPaddress/otrs/index.pl with user root@localhost and default password.
Enjoy OTRS!
OTRS wiki
Another copy of this guide will be maintained on OTRS wiki for a larger audience.