[966] in linux-net channel archive
Re: more: telnet not working
daemon@ATHENA.MIT.EDU (Olaf Titz)
Wed Aug 23 13:05:07 1995
To: submit-linux-dev-net@ratatosk.yggdrasil.com
From: Olaf Titz <olaf@blackforest.inka.de>
Date: 22 Aug 1995 10:00:43 GMT
Patrick Main <pmain@interoz.com> wrote:
> Now for some more weirdness. Before i coud get physically to the machine
> the problem fixed itself! I thought at first that someone had rebooted
> but this is not the case. No change has been made in the beginning up-times.
This is dead simple: you had a temporary DNS outage. This frequently
bites sites which run tcp_wrapper (which only works for the inetd
services). If it can't verify the connecting adress, it refuses
connection. After your name server came back up (perhaps someone
rebootet _that_), everything returned to normal.
Which is the reason I configure the machines from which I need to do
remote maintenance as IP addresses in hosts_allow.
olaf
--
___ Olaf.Titz@inka.de or @{stud,informatik}.uni-karlsruhe.de ____
__ o <URL:http://www.inka.de/~bigred/> <IRC:praetorius>
__/<_ >> Just as long as the wheels keep on turning round
_)>(_)______________ I will live for the groove 'til the sun goes down << ____
