Starting with H-Sphere 2.5.0 MySQL servers have predefined socket location, set in /etc/my.cnf conf file (permissions for /etc/my.conf are changed to "readable for all"), which are:

• for FreeBSD:
  /var/db/mysql/mysql.sock
• for Linux:
  /var/lib/mysql/mysql.sock

User's php web applications can locate this socket, because it's set in php.ini file:

• for FreeBSD:
  mysql.default_socket = /var/db/mysql/mysql.sock
• for Linux:
  mysql.default_socket = /var/lib/mysql/mysql.sock

User's perl web applications can locate this socket too, because during H-Sphere update, DBD::mysql driver, located in system pathes (/usr/lib/....) is patched by adding the following string to a corresponding perl module:

Though if you decide to update DBD::mysql driver or system perl version, execute the following script after the update of DBD::mysql driver or system perl version: