[ILUG] FTP and other services ceasing to function...

[Anders Holm]

Hey!

After the connectivity goes down, what does netstat show you?

Is there a lot of FIN_WAIT's?? Could then be some problem with the TCP/IP 
stack.
Did you recompile the kernel?

//Anders

At 09:58 22/11/01, Richard Eibrand wrote:
>Distro: Redhat 7.2
>Kernel:         2.4.7-10
>         2.4.10
>         2.4.14
>
>Firewall: Non existent (Disabled)
>Networlk Card: 3CCCom575CT-D (PCMCIA NIC)
>Lan: 10mb Novell network.
>
>This is the first time this problem occured.
>The box is connected in a 10Mb 10 port Genius lan hub with a crossover 
>cable making the connection
>between the patch in the wall to the hub. Hub connection set to normal as 
>opposed to crossover.
>
>The two other boxes connected to hub, who do not loose network connection 
>when said machine goes down.
>
> >Just because ifconfig shows ethX up doesn't actually mean that is is up. 
> Run mii-tool as root when the problem occurs,  this will tell you if the 
> link is ok. If not then your switch/hub is >
>to blame.
>
>I ran mii-tool before and after it stopped shipping traffic, same result 
>for both scenarios
>-> eth0: autonegotiation failed, link ok
>
> >Then the usual, can you ping the box, ssh/telnet to it etc? If ssh is ok 
> then why not use pscp or a graphical sftp  client?
>Once, the traffic has stopped shipping, none of the above work.
>
> >Have you disabled any firewalling that you have in place. (iptables -L 
> or ipchains -L will list the chains/tables). Then  ip[chains|tables] -F 
> to flush the tables/chains.
> >Probably using "high security" which is the firewall features in latest
> >distros.
>
>All firewall rules disabled
>
>It seems to crap out after about a 20Mb transfer, could it be a transfer 
>limit somewhere, but if so,
>how does that explain the link going down for other programs that use the 
>connection.
>
>
>Cheers for your help lads,
>
>R
>
> >22/11/2001 08:12:58, "Wynne, Conor" <Conor.Wynne at compaq.com> wrote:
>
> >
> >Step One: Try pinging from the server.
> >does it work? Go to step two.
> >Step Two : Ping from the desktop. Doesn't work?
> >
> >/etc/rc.d/init.d/bastille stop
>
>This file does not exist.
>
> >Just a thought coz you need to send mo info.
> >
>
>
>
>--
>Irish Linux Users' Group: ilug at linux.ie
>http://www.linux.ie/mailman/listinfo/ilug for (un)subscription information.
>List maintainer: listmaster at linux.ie

___________________________________________________________________________
Anders Holm
Unix System Administrator
Worldport Communications, Inc
Blanchardstown Corporate Park, Blanchardstown
Dublin 15, Ireland

Email      anders at wrdp.com <mailto:anders at wrdp.com>
Tel          353 1 241 2536
Cell         353 86 6042374
Fax         353 1 214 2495
Web       www.wrdp.com <http://www.wrdp.com/>

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