unable to access admin interface

I'm not able to access the admin interface. I don't reach the page where I can enter my admin password. The mailman error log doesn't show anything. I'm running mailman 2.1.18-1.
This message appears:
Gateway Timeout
The gateway did not receive a timely response from the upstream server or application.

Chad Rebuck writes:
This error doesn't indicate a Mailman problem, but rather a network or webserver problem. A timeout indicates that the gateway couldn't contact the webserver at all (which is not part of Mailman, but a completely separate package). To check:
- Are you using the correct URL (including port; maybe your Mailman is configured to use https: rather than http: or something like that)?
- Is there a webserver running on the Mailman host?
- Is it listening to the port you're using (probably 80 = http, but possibly 443 = https or even something else)?
- Is there a firewall protecting port 80 (or 443 if you're using https: URLs) between your gateway (proxy server) and the Mailman host?
- If there is a webserver running, check that it it configured to provide CGI services (lack of CGI should not result in a network timeout, but rather a 404 No Such Page from the webserver, or perhaps a permission failure error -- but you never know). Still, I'd bet on #2 or #3 here.
HTH
Steve

thanks for the help
- yes, I am able to access the list info page fine, then I click on the admin interface from that page. All the pages are http, not https from what I see.
- yes
- yes, I can access other pages on the same server using the same domain name even when the admin page is not responding.
- yes, there is a firewall on my router that forwards all port 80 traffic to the web server
- I'll have to check on this one. Will see how to test this, but since i can get into the admin page and the list info page, etc. does this mean it must be working?
The display of the admin pages works at times, but then gets stuck and provides a 504 gateway timeout after choosing a few of the admin page options. I can't make any sense of why it stops working.
On Mon, Jul 21, 2014 at 11:29 PM, Stephen J. Turnbull <stephen@xemacs.org> wrote:

On 07/22/2014 01:16 PM, Chad Rebuck wrote:
What is the exact URL of the listinfo page you are accessing and the admin page you can't access? In particular, are they identical except for 'listinfo' <-> 'admin'.
What if anything is in the the web server's access and error logs for these failed attempts?
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan

http://mail.a2-16v.com/mailman/listinfo/a2-16v-list
http://mail.a2-16v.com/mailman/admin/a2-16v-list
web access 144.160.5.25 - - [22/Jul/2014:16:38:40 -0400] "GET /mailman/admin/a2-16v-list HTTP/1.1" 504 247
web error [Tue Jul 22 16:40:40.374934 2014] [cgi:warn] [pid 187:tid 1098904624] [client 144.160.5.25:13341] AH01220: Timeout waiting for output from CGI script /usr/lib/mailman/cgi-bin/admin, referer: http://mail.a2-16v.com/mailman/listinfo/a2-16v-list
On Tue, Jul 22, 2014 at 4:39 PM, Mark Sapiro <mark@msapiro.net> wrote:

Chad Rebuck writes:
This error doesn't indicate a Mailman problem, but rather a network or webserver problem. A timeout indicates that the gateway couldn't contact the webserver at all (which is not part of Mailman, but a completely separate package). To check:
- Are you using the correct URL (including port; maybe your Mailman is configured to use https: rather than http: or something like that)?
- Is there a webserver running on the Mailman host?
- Is it listening to the port you're using (probably 80 = http, but possibly 443 = https or even something else)?
- Is there a firewall protecting port 80 (or 443 if you're using https: URLs) between your gateway (proxy server) and the Mailman host?
- If there is a webserver running, check that it it configured to provide CGI services (lack of CGI should not result in a network timeout, but rather a 404 No Such Page from the webserver, or perhaps a permission failure error -- but you never know). Still, I'd bet on #2 or #3 here.
HTH
Steve

thanks for the help
- yes, I am able to access the list info page fine, then I click on the admin interface from that page. All the pages are http, not https from what I see.
- yes
- yes, I can access other pages on the same server using the same domain name even when the admin page is not responding.
- yes, there is a firewall on my router that forwards all port 80 traffic to the web server
- I'll have to check on this one. Will see how to test this, but since i can get into the admin page and the list info page, etc. does this mean it must be working?
The display of the admin pages works at times, but then gets stuck and provides a 504 gateway timeout after choosing a few of the admin page options. I can't make any sense of why it stops working.
On Mon, Jul 21, 2014 at 11:29 PM, Stephen J. Turnbull <stephen@xemacs.org> wrote:

On 07/22/2014 01:16 PM, Chad Rebuck wrote:
What is the exact URL of the listinfo page you are accessing and the admin page you can't access? In particular, are they identical except for 'listinfo' <-> 'admin'.
What if anything is in the the web server's access and error logs for these failed attempts?
-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan

http://mail.a2-16v.com/mailman/listinfo/a2-16v-list
http://mail.a2-16v.com/mailman/admin/a2-16v-list
web access 144.160.5.25 - - [22/Jul/2014:16:38:40 -0400] "GET /mailman/admin/a2-16v-list HTTP/1.1" 504 247
web error [Tue Jul 22 16:40:40.374934 2014] [cgi:warn] [pid 187:tid 1098904624] [client 144.160.5.25:13341] AH01220: Timeout waiting for output from CGI script /usr/lib/mailman/cgi-bin/admin, referer: http://mail.a2-16v.com/mailman/listinfo/a2-16v-list
On Tue, Jul 22, 2014 at 4:39 PM, Mark Sapiro <mark@msapiro.net> wrote:
participants (3)
-
Chad Rebuck
-
Mark Sapiro
-
Stephen J. Turnbull