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Old 05-01-2001, 07:56 PM   #1
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Registered: Apr 2001
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Red face

i just installed mandrakde 8. and know a little about linux. not much. i set it up for my static ip on the lan here at college and it worked fine. although just about everynight it will lose its connection, i can't get on aim, irc, or any websites. i can ssh into myself. if i reboot into windows everything works fine. i can reboot all night and it doesn';t do anything. then later the next day it decidesto work again. what the heck is up with this?

also what shoudl go in the host part of the network config? is that the equiv to what i put in "host" in the network neighborhood? (ex: abc-d-123) where 123 is b block of my ip and abc-d are part of my residence halls hub

Old 05-02-2001, 07:42 AM   #2
Registered: Apr 2001
Location: London
Posts: 408

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I've never used Mandrake 8 but I guess it's like redhat.

ok start from the beginning and answer these questions:

1) how many IP address are set-up on the system
2) Are you going to use a proxy server to access the internet or just normal trough a router.

Don't know why it loses its connection, only if it was DHCP and the IP address was revoked would you lose it.
maybe someone is having a laugh with the hub.

I have no idea what you mean by host part of network config.
if your talking about the /etc/hosts file then this must look something like this example:

"your IP should be in there with the name you call your system and the route which will be used to get to the next hop" localhost alpha "my linux box" cisco1-gw ice becks pisswarmbeer

supply more info and we can help more.
Forget everything you've ever learn in windozes it will just confuse the issue.

Old 05-02-2001, 08:38 AM   #3
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Registered: Apr 2001
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i am at a big ten university. so we have lans. let me put it this way. the fiberbone looks like a friggen spider web from a horror movie.

i guess my question is why at some times can't i get on using linux some times no matter what i restart, but i can still get on with less superior operating systems,
Old 05-02-2001, 09:05 AM   #4
Registered: Apr 2001
Location: London
Posts: 408

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As i said you'll have to give more info as this isn't a standard feature of Linux.

There should be no reason as to the network function stopping other then hardware faults.. ie overheating, unplugging etc etc.
or dynamic routing or tables changing due to incorrect ICMP type 9 route advertisement messages. "which you box should ignore anyway"

what do the logs say?
when your network connection dies what does the "ifconfig -a" command say.
what does a TCPdump show when line is dead.
what does the "netstat -r" show ? i.e have the routers gone from your table.

There are lots and lots of ways to investigate this.
next time it happens get this info and post it to us:
(all as root)
1) # ifconfig -a
2) # netstat -r
3) # ngrep "you'll have to install it then run it, if it shows any output the cards up"
4) also check if a LED light is showing on the network card.

Old 05-04-2001, 07:40 PM   #5
Registered: Feb 2001
Location: Colorado Springs, CO
Distribution: Redhat v8.0 (soon to be Fedora? or maybe I will just go back to Slackware)
Posts: 857

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When its working.. do a traceroute to somewhere like Do one to the IP address to for that site as well. When its not working, do the same, both to the name and IP address.

Post the results here.



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