[squid-users] Cachemgr.cgi not answering queries

So here's an odd one.

I can connect to the cachemgr menu just fine. When I do so, I see an entry in Apache's access.log stating that I accessed the cgi. I also see an entry in Squid's cache log stating that the cgi accessed the menu.

All of my other cgi scripts are working fine, so I don't think it is an Apache/firewall/rights issue.

But when I click on any of the links on the cachemgr.cgi main menu, the connection times out.

I've watched the traffic with wireshark, and I can see my browser sending queries out. (I've tried IE8, Firefox 3.5.1 on Windows, Iceweasel 3.0.6 on Debian, and Konqueror on Debian.)

But there is simply NO response.

With tcpdump on the squid box, I see the queries coming in, but Apache does not log anything, either in the access log or error log and there are no further entries in squid's cache.log. It is like the cachemgr.cgi is just eating the replies.

Using squidclient on the squid server to request cache manger objects works fine, and those requests are logged normally.

So I am fairly sure that:
        Apache is configured correctly to serve cgi scripts from it's configured cgi-bin.
        The cachemgr.cgi script can be run by the Apache user (since it can run the authentication dialog, and then present the main menu)
        Iptables on the squid server allows traffic to Apache
        /etc/squid/cachemgr.conf is configured correctly (since it can run the authentication dialog, and then present the main menu)
        /etc/squid/squid.conf is set to allow cachemgr.cgi to request cache manager objects from localhost, which works with squidclient and to retrieve the main menu.

The cachemgr.cgi worked fine about a month ago when I last used it.

Squid 2.7STABLE3 Debian Lenny, everything current on patches.

Is there anything obvious I am missing?
  
James Zuelow....................CBJ MIS (907)586-0236
Network Specialist...Registered Linux User No. 186591
Received on Tue Jul 28 2009 - 23:56:21 MDT