What I am trying to do seems so simple, I don't understand why I can't
get it to work. If there is some obvious documentation/FAQ that I've
missed, please point me there.
I have a RedHat 7.1 system attached to an adsl modem. There is no LAN
involved; no second network card. PPPoE is installed and running, and I
can operate as a Web client. Apache is installed and httpd starts at
boot-up. Following instructions, I thought I had the firewall
configured properly to let through http requests. However, I can't get
this machine to act as a Web server (even locally). My ISP _does_ allow
me to run a Web server.
At firewall install time, I chose maximum security, but to let Web
requests through. Since them, I have restated those settings through
lokkit and gnome-lokkit. I tried to do it through the firewall config
program as well, enabling all incoming requests to port 80.
I can ping the machine from elsewhere on the Internet, but a browser
just sits there, eventually saying the host is not responding. If I try
to access it from a local browser, it says the request was rejected.
For the next while, I have the luxury of also having a cable modem
(different ISP) with a separate machine hooked up to it. When I try a
Web access from this second machine, I see repeated flashes of the cable
modem transmit/receive lights, as if it's retrying. Over on the adsl
modem, I see corresponding repeated flashes of its receive/transmit
lights. It appears the two are talking, but no Web page comes back.
In a totally different environment, I have successfully run a Linux 7.0
Web server (no firewall) on a LAN, so I know it can work, and the
biggest difference here is the presence of the firewall.
Can anyone point me in the right direction?