Re: Telnet access
I once worked with an unnamed yet completely vital system which outputted its log over a network connection similar to syslog but not.
We often ran the log viewer app on our workstations over a VPN as it was very useful for development.
After a while we started getting very strange errors on this critical system that we couldn't diagnose - random and long, noticeable delays in execution of the time critical code.
We reported to the manufacturer who spent quite a while looking into this problem.
It turned out that the network part of the log output code ran in the main thread, so our office's dodgy Internet were causing the whole system to hang.