telnet running on windows server

Can you provide some reasons why a server may need telnet service running? Are there any genuine examples why an admin would need the telnet service running?

And secondly I have heard its a security issue - but cant really understand why? Does it make your server and data more prone to unauthorised access ? If so how and why? If its an internal server in your private network what's the actual risk?
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Hi pma111.

Let me guess: you have no clue what it is used for? Please read , it has a section "security".
pma111Author Commented:
That was kind of why I asked the question :-(

I still don't really see that as much of a risk though based on this link you've provided, if the only risk is of eavesdropping which would be unlikely from internal users - who would therefore get fired for such activity.
If internal users were able to hack into it using (future) telnet exploits, they could very well take hold of the whole server, that's the risk. It's a system service (runs as system) - any unneeded services have to be avoided. If you need it badly, you have to argue to keep it.

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pma111Author Commented:
Good point. Has it got a long history of exploits/vulnerabilities? Or about the same as most windows services, FTP etc.
You care for its history? I wouldn't. Is it needed or not - if yes, and there is no alternative, then use it, if there is one, take the alternative, because experts, like you could read at wikip., encourage people to discontinue using it.
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Microsoft Server OS

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