There are only two steps to install OTRS.
Step 1: From the console as root, run:
root@srv1:~# apt-get install libapache2-mod-perl2-dev
Step 2: root@srv1:~# apt-get install otrs2
If you forget to do Step 1, you will encounter an error ...
"dpkg: error processing otrs2 (--configure):
subprocess post-installation script returned error exit status 1
Errors were encountered while processing:
otrs2
E: Sub-process /usr/bin/dpkg returned an error code (1)"
Run the following to fix the error:
root@srv1:~# apt-get install libapache2-mod-perl2-dev
Then purge the otrs install:
root@srv1:~# apt-get purge otrs2
And finally install again otrs
root@srv1:~# apt-get install otrs2
Once the installation is completed, Login to the website of OTRS:
http://[ip address of OTRS Server]
Username: root@localhost
Password: root