We are trying to set up an Apache server on a remote machine, but we experience strange behaviour. Checking with
telnet remote.machine 80, one of these things happen randomly:
- Connect and serve content normally (no delay)
- Connect after a long pause
- Connect normally, then time out without response
- Timeout on connect
Once connected, the request seems to be processed normally. These things do not occur if I connect from that machine directly to
The Apache is dedicated, as is the server it runs on (runs only this one application, no-one else is using it for anything else). I am not an administrator of the remote site, and I do not know the network architecture over there, but apparently it's firewalled: (HTTP port is open, SSH port is IP-restricted, most others are closed).
If there was any one pattern, I might have some ideas, but this variety of symptoms baffles me. Any ideas as to what could be causing this?
Apache is 2.2; Server version is:
Linux version 2.6.9-22.ELsmp (email@example.com) (gcc version 3.4.4 20050721 (Red Hat 3.4.4-2)) #1 SMP Mon Sep 19 18:32:14 EDT 2005
UPDATE: The administrators over there found the error - apparently, they had some anti-intrusion heuristics software running. When they disabled it, everything started working as it should. Thank you for thinking with me, though!