Messages in this thread | | | Subject | Re: can't connect to web site | From | Mark Montague <> | Date | 17 Mar 1999 21:15:33 -0800 |
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Alessandro Suardi <asuardi@uninetcom.it> writes:
> Alan Cox wrote: > > > > > Well, based on the fact that I can get to the site but not ping them, I > > > imagine they have disabled _all_ ICMP, including the rather important > > > ICMP_FRAG_NEEDED, breaking path mtu discovery. Their fault, not yours. > > > > Not this time. This one is a Linux breakage, fair and square > > > > As Jeremy Fitzhardinge said, it works here. "Aktiehandel Online" :) > (vanilla 2.2.3 btw)
I don't think (although I don't know) this is a kernel issue, but I've seen a similar problem on a 2.2.3 machine. It turned out, though, that it was a YP/NIS problem-- the linux machine is configured as a secondary YP server, and for some reason (probably a weird timing issue when machines came back from a power failure) it "forgot" that it was serving the /etc/protocols file. This made all the machines using it as a server, as well as itself, think that it had an empty protocols file, and ping, traceroute, and the like got a "icmp: unknown protocol" error. Strangely, the more commonly used protocols didn't seem to have problems; IP and UDP stuff acted fine.
Anyway, just something to look at-- try "ypcat protocols" to see if this is the problem (assuming you're using yp at all).
The gross level info is: linux 2.2.3, debian 2.0, dual PPro200 SMP, ypwhich (yp-tools) 2.1, yp master is HPUX 10.20.
in case this helps
- M
-=-=-=-=-=-=-=-=-=-=-=+=-=-=-=-=-=-=-=-=-=-=-=+=-=-=-=-=-=-=-=-=-=-=-=- Mark "Monty" Montague | monty@gg.caltech.edu | I don't do Windows(tm) -=-=-=-=-=-=-=-=-=-=-=+=-=-=-=-=-=-=-=-=-=-=-=+=-=-=-=-=-=-=-=-=-=-=-=- DON'T PANIC! I'm a trained professional, and far more | *Why* question qualified to panic in this situation than you are. | authority? -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
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