Tag: example

Somethings we do at TakeLAN quite often… and I always forget the how to’s… VPN’s! Check the TUN/TAP Adapter: If you’re running it in a OpenVZ Container as we are: Enter cat /dev/net/tun to test whether the TUN/TAP device is available: If you receive the message cat: /dev/net/tun: File descriptor in bad state your TUN/TAP device is ready for

There are various guides online for setting up Postfix as a backup (hold and forward) mail server, which knows which accounts are valid on the primary (to prevent backscatter spam, so it only accepts emails for actual accounts on the primary mail server). All of them are slightly different, and none of them worked out

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