IT

Many mail clients show wrong email receiving date-time because the file creation time is wrong after migration or restore. Here is a short review on how to fix it for Dovecot on ISPConfig.

Sometimes you need old-school setups… Here is how to use PDO sqlsrv for PHP 7.3 on CentOS 7.

Next step using Open vSwitch (OVS) network configuration ( How to forward all VLANs to a KVM virtual machine using Open vSwitch (OVS) ) to provide only one VLAN.

By default, documentation suggests sending all traffic via OVS. This is risky, because OVS is an independent service that can stop, restart, or fail. My approach separates management and production networks for reliability.