OK, I've been through all the related threads I could find. The problem is that the cron list of ISPConfig does not get executed. My error response when executing /usr/local/ispconfig/server/server.sh is littered with PHP Warning: mysql_real_escape_string(): 7 is not a valid MySQL-Link resource in /usr/local/ispconfig/server/lib/classes/db_mysql.inc.php on line 184 PHP Warning: mysql_select_db(): 7 is not a valid MySQL-Link resource in /usr/local/ispconfig/server/lib/classes/db_mysql.inc.php on line 104 errors. I' ve checked the mysql access using mysql -h localhost -u root dbispconfig -p with the user(root) and password as stored in /usr/local/ispconfig/server/lib/config.inc.php /usr/local/ispconfig/server/lib/mysql_clientdb.conf Ive done cd /tmp wget http://www.ispconfig.org/downloads/I...-stable.tar.gz tar xvfz ISPConfig-3-stable.tar.gz cd ispconfig3_install/install php -q update.php The /var/log/mysql.err and /var/mysql.log files are empty. I've had to disable the /usr/local/ispconfig/server/server.sh entry in crontab just to keep my sever from misbehaving. I have IServer: 18.104.22.168 (Debian Squeeze/Sid) ISPConfig 22.214.171.124 Everything worked fine up to the point where I did general system upgrade. My /etc/hosts file looks like this: 127.0.0.1 localhost localhost.localdomain 126.96.36.199 www.subxplore.co.za # The following lines are desirable for IPv6 capable hosts ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters ff02::3 ip6-allhosts Anything that I can do next to solve this problem?