Port on CanYouSeeMe works, in Browser doesn't

akinonyx · 11-19-2010, 08:12 AM

Hi, I'm trying to set up apache on my public ip. I'm running Ubuntu 10.10 going through a Linksys befw11s4. I'm serving up webpages on port 8050. On my Ubuntu server I can reach the pages fine using: localhost, private ip, and public ip. Canyouseeme.org also reports that port 8050 is open on my public ip. Yet, I cannot figure out why when actually browsing from outside the network I cannot connect to the server. Any ideas? Thanks!

samarudge · 11-19-2010, 09:13 AM

Quote:

Originally Posted by akinonyx

Hi, I'm trying to set up apache on my public ip. I'm running Ubuntu 10.10 going through a Linksys befw11s4. I'm serving up webpages on port 8050. On my Ubuntu server I can reach the pages fine using: localhost, private ip, and public ip. Canyouseeme.org also reports that port 8050 is open on my public ip. Yet, I cannot figure out why when actually browsing from outside the network I cannot connect to the server. Any ideas? Thanks!

What ISP do you use, you will find that nearly all ISPs block inbound connections
-Sam

akinonyx · 11-19-2010, 09:48 AM

It's comcast and you're right. When using common ports such as 80 or 8080, CanYouSeeMe.org would report the ports as closed. Though as I say, port 8050 is shown as open...

samarudge · 11-19-2010, 09:54 AM

Quote:

Originally Posted by akinonyx

It's comcast and you're right. When using common ports such as 80 or 8080, CanYouSeeMe.org would report the ports as closed. Though as I say, port 8050 is shown as open...

Hmm fair point,
Try going to http://ping.eu/ and run their port check tool and see if you get the same result, then try the Traceroute tool see where your requests are dying.

Also have you disabled IP-Tables/Firewall on the box and on the router, then can sometime behave oddly with non-standard ports.
-Sam

akinonyx · 11-19-2010, 10:13 AM

At ping.eu port is shown as open, and request goes all the way through on traceroute. Iptables are clear on my server. What may be is a firewall on the linksys befw11s4 router that cannot be disabled. I may have to put the server in dmz which I didn't want to have to do. Does anybody have any experience with the firewall on this router? Thanks for the help!