Problem after ubuntu upgrade to 12.04

[pawan]

Most of the sites don't open, but few sites open don't know how.

In ispconfig all services show online.

Thanks.

[till]

Have you run a ispconfig update and selected to reconfigure services after you upgraded the operating system? If not, then you might want to do this now to see if this fixes your setup:

cd /tmp
wget http://www.ispconfig.org/downloads/ISPConfig-3-stable.tar.gz
tar xvfz ISPConfig-3-stable.tar.gz
cd ispconfig3_install/install
php -q update.php