Vladimir Melnik

Just another WordPress website

How to determine on which hop your datagrams are being lost without the mtr utility

Sometimes you need to detect which host loses IP-packets being sent by you. It’s good when you can use the mtr utility, but what to do if you can’t install it?

IP-address Round-Robin for Postifx

Here’s a short and pretty self-desctriptive recipe to make your Postfix to send outgoing messages from different IP-addresses switching them on a round-robin basis. First of all, we’ll need the […]