# Tricky Ethernet

For a long time, I had strange disconnections on the one of my servers.

What's checked:

* Syslog ✓
* Firewall ✓
* Kernel ✓
* Memory ✓
* Router ✓
* ...
* Ethernet socket... disconnected!

Spent about one month to find this reason.

By the way, found lot of bugs sensitive to websocket disconnections:

=> https://github.com/chesslablab/chess-server

So my trip was useful at least for one open source project :)

## The conclusion

Ethernet wire and it sockets has limited life time.
If you're old admin, do not forget to check some rusty stuff at first ;)