How to fix "Apache is not running"

i installed xampp in my ubuntu 12.04. but Apache was not running. like this:

$ sudo lampp status
Version: XAMPP for Linux 1.5.5a
Apache is not running.
MySQL is running.
ProFTPD is running.

then after i had typed:

tail -2 /opt/lampp/logs/error_log

it showed me some errors:

[Mon Mar 09 21:32:59 2015] [warn] RSA server certificate is a CA certificate (BasicConstraints: CA == TRUE !?)
[Mon Mar 09 21:32:59 2015] [warn] RSA server certificate CommonName (CN) `localhost' does NOT match server name!?

1 Answer

Did you try service apache2 start in order to start Apache? The warnings shown in the log are just this, warnings. Apache should also start with these warnings.