Very Computer

by **Jay Hugh** » Wed, 25 May 1994 11:35:41

HELP!!!! We have a new site set up for public access internet. Just
converted from ESIX to Linux, and have a major problem.

It seem at random times all internet access is gone. Acts like the
daemon is locked up.. The other maching (ESIX) has no problems accesing
the outside network. Or we have no problems accessing it (ESIX) from the Linux
box, or accesing the router. We can't access our name server (NS.UU.NET)
from the linux box but can from the esix box.

Can someone PLEASE give us some hints on what to look at???
We have major bucks tied up in this and have been on and off the
network for several day's.

Rebooting has no effect.... JEEEEEZZZZZ

to the source of the problem.

thanks!!!

jhughes
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by **Tim Smi** » Thu, 26 May 1994 16:59:50

>Subject: HELP!! Internet connection problem PLEASE HELP!!!
>Date: Tue, 24 May 1994 02:35:41 GMT
>HELP!!!! We have a new site set up for public access internet. Just
>converted from ESIX to Linux, and have a major problem.
>It seem at random times all internet access is gone. Acts like the
>daemon is locked up.. The other maching (ESIX) has no problems accesing
>the outside network. Or we have no problems accessing it (ESIX) from the Linux
>box, or accesing the router. We can't access our name server (NS.UU.NET)
>from the linux box but can from the esix box.

Is NS.UU.NET outside your network? it might be something simple like a
misplaced 0, our 255 in your netmask/network address setup. Another thing to
try would be reducing your mtu size. This can be done in /etc/rc.d/rc.inet1 in
the ifconfig section add "mtu 576" as a parameter to the ifconfig command.
( If you are running on an ethernet this results in ip packets of 552 bytes,
which seems to be some kind of magic number with all the other unix ).

Another thing is to use multiple nameservers! Do this by adding multiple
entries in your /etc/resolv.conf file.

Hope this helps - I'm new to this as well, but I'm sure I'll get corrected if
anything here is false.

- Tim Smith