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From André Warnier>
Subject Re: [users@httpd] Trouble shooting help...Apache only recognizing local HTTP requests...was working fine till....
Date Tue, 25 Nov 2008 16:26:49 GMT
John Hudak wrote:
> This one has me scratching my head, any insight would be appreciated...
> Installed Ubuntu server 8.04 with the generic Apache install. Set up a
> few webpages in htdoc, could access from LAN side (e.g. localhost, and
> Set up router to port forward http requests on port
> 80, set up domain redirect on dyndns. Worked fine for 2 months. SSH
> connections from LAN side and WAN side work fine as well.
> Installed: Hylafax (fax server), then, to accommodate a USB modem, I
> did the following:
> Installed linux-headers-2.6.24-19-server to /usr/src/
> I then installed the modem package:
> dgcmodem_1.08_k2.6.24_19_server_ubuntu_i386.deb.z ip
> Ubuntu now recognizes my modem, but something broke
> apache.....external (e.g. WAN) http requests are not displayed...e.g.
> the web pages dont show up in the browser when I go to my domain
> website (any browser).
> I am trying to figure out what changed.  It *seems* to be that the
> above installs apparently did something to prevent external web page
> requests. Any ideas? Any suggestions on how to begin tracking this
> down?
> SSH still works on both LAN and WAN sides.
> None of the apache config files appear to have been modified.  The
> error log looks normal. So what is preventing responses?
> The firewall has not changed (it passed requests for 2 months). I did
> install postfix, sasl, courier, amavis, spamassisn, clamav, postgrey,
> squirrelmail, phpmyadmin, and shorewall about a month ago, but
> everything has been working fine.
> Firefox provides the following messages:
> Firefox can't establish a connection to the server at
> Though the site seems valid, the browser was unable to establish a connection.
> * Could the site be temporarily unavailable? Try again later.
> * Are you unable to browse other sites? Check the computer's network connection.
> * Is your computer or network protected by a firewall or proxy?
> Incorrect settings can interfere with Web browsing
> Any suggestions? This really has me baffled....

Have you checked /etc/hosts.allow and /etc/hosts.deny ?

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