So, a friend of mine needed to test an email (SMTP) mail server and was writing something to do this in java when I mentioned that it could be tested via telnet.
Here are some of the commands that I’ve used previously:
Telnet to the mail server on the correct port (by default port 25) e.g. telnet [...]
I came across this problem when we were doing a big merge between branches in CVS. Although it doesn’t look like it, the client is making LOTS of connections - they can be seen in /var/log/syslog (on linux) - and there is a limit on the number of connections that can be made in one [...]