August 22, 2011

HOW TO : Apache and SELinux

Quick note for future reference..

If you ever run into errors like this

[code]
<pre>Starting httpd: Warning: DocumentRoot [/var/www/html/static] does not exist
Warning: DocumentRoot [/var/www/html/static] does not exist
Warning: DocumentRoot [/var/www/html/static] does not exist
Warning: DocumentRoot [/var/www/html/static] does not exist
(13)Permission denied: httpd: could not open error log file /etc/httpd/logs/error_log.
Unable to open logs
[FAILED]
[/code]
And you are scratching your head why Apache is throwing these errors, even when the said directory and files exist. And you have the right permissions!! Check if you have SELinux running and being enforced.
On RHEL, you can check if SELinux is running by
[code]cat /selinux/enforce [/code]
The two values are 0 and 1. 0 means, SELinux is not being enforced and 1 means it is.
You can quickly disable SELinux temporarily by
[code]echo 0 >/selinux/enforce [/code]
If you want to disable it permanently (i.e. survive reboots), you have to edit the file /etc/selinux/config and change the SELINUX line from enabled to disabled.

August 22, 2011 by HOWTO Linux Networking Technology Uncategorized Web 4

HOW TO : Playbook for creating an effective IT team

Tom Limoncelli put together a list of questions that are essentially a cheat-sheet to creating and running a very effective IT team. He called it the Limoncelli Test (as a tribute to the Joel Spolsky‘s Joel Test) and it can be found at http://everythingsysadmin.com/the-test.html.

The only additional thing I would add to the list is to have a roadmap for the function you provide and ensure it is updated quarterly. A lot of teams spend a lot of time on what they do now, but don’t focus on what they “can” do. This is similar to IT functions spending more than 70% – 80% of their budgets on maintenance rather than innovating.

August 22, 2011 by HOWTO Management Uncategorized 0