Re: Slow telnet/pop3 connection

Mark Olbert wrote:
I'm transitioning to a new linux server (based on linuxfromscratch) and have noticed a significant deterioration in connection time
for telnet and pop3 connections, but not ssh connections (all using the same "telnet" client on some Windows Vista boxes).

What's weird is that similar connections made to the old linux server -- which is plugged into the same switch -- are still quite
fast.

I've read that this typically involves problems with reverse DNS lookups, but I tried using IP adddresses on the telnet client,
rather than names, and it's just as slow.

Suggestions or references would be most appreciated. This isn't a deal killer...but it is annoying, and quite perplexing.

- Mark

there is to things to look

First : perhaps your server try to make ident request ( tcp 113 )

you could try

iptables -A OUTPUT -p tcp -m tcp --dport 113 -j REJECT --reject-with icmp-port-unreachable

second : if your server is IPV6 enabled try to disable IPV6

hope this help
.

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