Crontab emails

The mail sent by your server’s cron jobs are refused by the recipient server due to: "Action: failed Final-Recipient: user;user@domain.com Status: 5.0.0 Remote-MTA: dns; inbound.smtp.domain.com Diagnostic-Code: smtp; 553 5.1.8 … Domain of sender address root@hostname.domain.com does not exist" Crontab will by default send from $LINUX_USER@$HOSTNAME. You can change this byRead More…

PHP Sessions causing Error

Currently your messages log is filling up with errors and the system is unstable. Check the message log: $ server# tail -f /var/log/messages Jul 28 08:57:30 mail kernel: EXT4-fs warning (device sda3): ext4_dx_add_entry: Directory index full! Check the sessions directory $ server# php -i | grep session.save_path session.save_path => /var/lib/php/sessionRead More…

Show Cron Jobs

How do I view currently setup or all running cron jobs under Linux operating systems? The cron service searches its spool area (usually /var/spool/cron/crontabs) for crontab files (which are named after user accounts); crontabs found are loaded into memory. cron also reads /etc/crontab, which is in a slightly different format.Read More…