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Old 12-12-2003, 02:01 PM   #1
cpv204
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Registered: Mar 2003
Location: Tribeca, NYC
Distribution: Slackware 9.0, Fedora Core 1
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Trying to access my webserver from a different computer.


Hi, I'm just starting to learn about setting up apache. I'm running a standard Fedora Core 1 install. I have httpd running and can connect to my webserver by directing my browser to http://localhost. Fine.

I have a dynamic IP, so I determine my current IP using ifconfig. Once I do, I can also connect to my webserver by directing my browser to this IP address, i.e. http://nn.nn.nnn.nnn. Fine.

After trying this this morning, I logged out (back to the gdm login screen) and went to work to try and access my webserver from my machine at work. When I tried to point my browser at my IP address, i.e. http://nn.nn.nnn.nnn, I could not connect to my webserver. I got that Internet Explorer "that page can not be found" generic error message.

What should I check on my server machine to see why I couldn't connect?

Thanks.
 
Old 12-12-2003, 02:10 PM   #2
DrOzz
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Registered: May 2003
Location: Sydney, Nova Scotia, Canada
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well as you say, you have a dynamic ip, so your internal, or even external address (if you have a dynamic address from your ISP) could have changed...i suggest, just getting the site up and running, and then look into www.no-ip.com and get a DNS name to forward to your IP...there is even a tool on no-ip that will update your ip as it changes...just install it on the webserver box, and its beyond easy to setup...things like your username/password registered with no-ip and update interval, etc..
 
Old 12-12-2003, 03:06 PM   #3
mac_phil
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If that's not the answer then your firewall is probably blocking port 80.

From your localhost you can access your webserver no matter what the firewall does. Even if you enter the IP number instead of 'localhost.' But when you access it from another computer the firewall keeps you out.

If you're using Shorewall just go into mandrake control center, security, firewall, and check the webserver box to let the internet connect to your webserver.
 
Old 12-12-2003, 03:16 PM   #4
cpv204
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Registered: Mar 2003
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Thanks for the good advice. I have looked into no-ip and other similar services. I probably will do this down the road. At this point, however, I'm just experimenting.

I agree it's possible that my IP changed in the half hour it took me to get to work, but I don't think so. I usually have the same IP for a few days. Assuming that my IP is still the same, what should I look at on my server? Something in the httpd.config? Firewall? Anything else?

mac_phil, you posted while I was composing. I'm not using Mandrake, but I'll try and find out how Fedora does this. (Anyone?)

Last edited by cpv204; 12-12-2003 at 03:20 PM.
 
Old 12-13-2003, 12:13 AM   #5
yanar99
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Registered: Dec 2003
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are you using a router at home? if so <i'll go ahead and post my reply> , your router must know that if it receives any web (port 80) requests, it must direct the request to your pc. in my case, i did this by accessing the router settings - I went to the Virtual Servers option, inserted a row with my pc's internal IP address (192,168.2.27), and defined External Port = "80" and Internal Port = "80." make sure you Reset your router.
 
Old 12-13-2003, 04:28 AM   #6
fireman949
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As DrOzz said, a service like no-ip or zoneedit.com would be great, you just need a domain name. Not to mention the updating client that monitors your WAN ip and updates it as needed.

If you have a home lan, you may consider assigning each computer to a static IP if they are not already. Should you need a dynamic lan, enable DHCP and start assigning IPs at 192.168.1.50 for normal computers, then set your server to use 192.168.1.20 and you'll never have a conflict and can specify which IP to forward port 80 to.

It may be possible that your ISP has blocked incoming port 80 (common in home class connections). You can try a port scan at grc.com to determine that. If so you may try and run your webserver on port 80.
 
Old 12-13-2003, 01:05 PM   #7
cpv204
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Registered: Mar 2003
Location: Tribeca, NYC
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Thanks everyone. Port 80 was indeed closed (by me) and I found where to open it (System Settings->Security Level for you Fedora users). Hope this may help someone in the future.
 
  


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