Very Computer

Greetings all:

This problem is strange and I would greatly appreciate any hints.

For those that can access it, they see the standard Apache test page.
Those that cannot see it eventually get the error "Server quit sending
data."  Those that cannot access are usually behind another firewall,
and using a proxy server.

http://www.veryComputer.com/

(Don't get e*d, it is a * system with nothing but RedHat s/w)

The server is behind a LinkSys firewall, if that matters.

Again, any hints on how to troubleshoot are appreciated.

Thanks in advance,
T.

I get apparent connection, but no reply (netstat -at second attempt):

tcp    0    0 efflandt.xnet.com:1046  pppoe0027.ld.c:www-http FIN_WAIT2  
tcp    0    0 efflandt.xnet.com:neod1 pppoe0027.ld.c:www-http ESTABLISHED

Any URL that does not reference a specific filename should end with a
trailing slash (my second attempt did include it).  Check your ServerName
and UseCanonicalName docs and settings.

--
David Efflandt  (Reply-To is valid)  http://www.de-srv.com/
http://www.autox.chicago.il.us/  http://www.berniesfloral.net/
http://cgi-help.virtualave.net/  http://hammer.prohosting.com/~cgi-wiz/

http://users.worldgate.ca/~marcs/mtu/

Marc:

Nice document.

It sounds plausible.  Did you confirm this, or are you simply
suggesting that this is the likely cause?

_MANY_ thanks!

I confirmed that:

1. I can't ping the server.  So at least some ICMP is blocked.

2. I can not access the site from my workstation.  It hangs if I try.

3. If I force the MTU on my network card down before trying to connect,
it works.

All symptoms of a PMTU-D problem.  So it is a very likely cause, but
not a definite cause since that can't be determined for sure remotely.