Author: bobnoordam

Postfix queue management

Queue management for postfix is done with the postsuper command, which you can use to delete mail in vareious scenario’s. #1 Remove specific mail Run the mailq command to list pending mail, en get the id, next you can delete a specific mail with: #2 Remove ALL mail #3 Remove all deferred (stalled) mail, without […]

UFW Firewall cheat-sheet

What do we want to archive Install and activate the Uncomplicated firewall (UFW) and list some basic commands for adding and removing rules Requirements Debian, Ubuntu, etc How do we get there Installation: Default rules The following defaults will allow all outgoing traffic, and block all incoming traffic, which will make for a nice set […]

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