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Sorry for my description but I'm a Linux's
novice.
I have a pc Compaq DP133 MHz with kernel 2.2.19pre17 acting as mail server with PostFix. I don't
know why in some day (not all) the different IP services (SMTP, POP, TELNET) are
unavailable for the timeout period after that I 'm able to telnet or
sending or receiving mail. The strange is that the day after it's all right and
after 1 month or a week the problems appears again.
The linux pc has a private IP (192.168.0 class C)
natted to a public address. And I have the problem only
when the others private IP try to connect with this machine for any IP
services. If I put all the privates IP in the "hosts" file, I partially resolve
the problem (SMTP service for example goes only after the 75/80 seconds of
timeout). It's seems a problem of reverse lookup. I haven't any internal DNS
server for private resolving addresses.
My resolve.conf files has simply these two
lines
nameserver 212.31.224.2
nameserver 212.31.224.3 and I try to change the DNS addresses but the
problem remains.
There anybody who can tell me a possible
solution or some tests to solve this problem?
Thanks
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