IIS 5 & IIS 6
After change public ip iis doesn't reach from external
Last post Sep 29, 2013 10:18 PM by kctt
Sep 24, 2013 03:32 AM|Giacomo_N|LINK
We had an old ii6 webserver in a DMZ network, last week our provider give us a new fiber connection and now i'm moving all services in this one.
Like other services i've edit the firewall rule changing only the public ip, because the internal server ip was unchanged, but if i try to reach the webserver from external with the new ip the browser loading seconds before give me a "page not found" message.
I've check the firewall log and i can see the connection incoming and natted to internal ip correctly.
I've try to find any reference of old public ip inside iis configuration, but unfortunately there aren't.
IIS is configured with 2 web sites, ip "all unassigned" and "host header value" is setting only in one web site, check the screenshot below.
Thanks for any help!
Sep 24, 2013 02:49 PMfirstname.lastname@example.org|LINK
Normally, you would want host ehaders on both sites and IIS answering only on the single IP (security), but your setup should work. If nothning has been changed on IIS, then your issue is in the routing or NAT. But you say the logs indicate it is correctly
An obvious check would be to see if you can reach the IIS IP from the router/firewall by HTTP. Make sure HTTP, HTTPS, DNS and whatever else is still translating. Checking access by Telnet can help find any IP routing or naming issues. Open Telnet on an
external client and use tenet [IP_Address] 80 to see what response you get back. Check any security settings in IIS, such as URLScan as well.
Set one site to answer on the internal IP, turn off the other and remove host headers to test the host header redirection.
Hope it helps.
Sep 25, 2013 11:58 AM|Giacomo_N|LINK
Thank you Jeff for your reply,
I've check by telnet from external client and yes, iis answer correctly.
It's also working with the new ip one of two websites inside the same iis, now i've understand where is the problem ,it's inside the website dot.net nuke code, probably there is a string with a check of public ip or the string calling:
if i call http://OLD_ip_address/sitedirectory is working
if i call http://dns_name_point_to_old_ip/sitedirectory not working
if i call http://NEW_ip_address/sitedirectory not working
unfortunately the site builder company doesn't exist anymore!
Now I'm trying to find a specialist for this trouble..
Thank you for your time
Sep 29, 2013 10:18 PM|kctt|LINK
You can log in DNN admin via old ip and update DNN portal URL under Site settings >