We have a new CentOS installation using PHP5 and MySQL. We were having an issue getting Cacti running, but the problem appears to boil down to a PHP issue.
When attempting to access Cacti via the web, we got this error:
FATAL: Cannot connect to MySQL server on 'localhost'. Please make sure you have specified a valid MySQL database name in 'include/config.php'
We checked config.php and everything is configured correctly.
We then looked at "my.cnf" and saw this line:
socket=/var/lib/mysql/mysql.sock
Running "netstat -an | grep mysql" says the following:
unix 2 [ ACC ] STREAM LISTENING 11035 /var/lib/mysql/mysql.sock
However, we have to create a symbolic link in /tmp in order to be able to get to the Cacti config screen:
ln -s /var/lib/mysql/mysql.sock mysql.sock
Why do we have to do this though?
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