Vladimir Melnik

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How to find out where exactly the packet is being lost

It’s a pretty common occurrence when you have 2 hosts pinging each other and some packets are being lost. And sometimes you need to make sure, that the routing device […]

How to test a TCP-connection

Sometimes it’s not enough to estimate the packet loss ratio only, but to make sure that a TCP-connections are stable. Run the “server” instance (sockping -m server -p 65513) on […]

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?

Virtualization Cluster Network in a Nutshell

To be honest, I’m not keen on drawing diagrams, but today I had to spend a couple of hours to sketch this one. It was needed to illustrate Ethernet-links between […]