View Full Version : [ubuntu] Dynamic DNS ....

November 17th, 2008, 04:16 PM
I've set up dynamic dns to point to my localhost so that i can show clients the webpages that I've produced. It's a really handy feature for me.

Problem is though, that it very rarely works. I've tried everything that i can think of but i'm having no luck with this.

I'm working on a home connection behind a home router.

eth0 Link encap:Ethernet HWaddr 00:16:36:b3:86:1b
inet addr: Bcast: Mask:
inet6 addr: fe80::216:36ff:feb3:861b/64 Scope:Link
RX packets:8271 errors:0 dropped:0 overruns:0 frame:0
TX packets:6704 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:5852814 (5.5 MB) TX bytes:1528628 (1.4 MB)
Base address:0x4000 Memory:da000000-da020000

I've set as a static NAT in my Netgear home router ...

I've configured the IP address in DynDNS correctly ( and when i ping the url, i get the correct IP back from DynDNS. It has to be an issue on my side of things.

babo@eire:~$ ping ere.homelinux.com
PING eire.homelinux.com ( 56(84) bytes of data.
64 bytes from 213-202-167-207.bas503.dsl.esat.net ( icmp_seq=1 ttl=255 time=1.15 ms
64 bytes from 213-202-167-207.bas503.dsl.esat.net ( icmp_seq=2 ttl=255 time=0.619 ms
64 bytes from 213-202-167-207.bas503.dsl.esat.net ( icmp_seq=3 ttl=255 time=1.12 ms

--- eire.homelinux.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1998ms
rtt min/avg/max/mdev = 0.619/0.964/1.151/0.245 ms

I can access the page on localhost no problem.

Does anyone have any idea where i should go from here ?


November 18th, 2008, 02:33 AM
Can you access the page(s) from another machine on your network (inside the router, but not the server)?

November 19th, 2008, 02:24 PM
I can access the website at but i can't access it at ere.homelinux.com

November 19th, 2008, 02:25 PM
you need

(1) setup your machine to a static IP in your lan
(2) forward port 80 (for http) from the router to your machine's static IP

November 19th, 2008, 04:55 PM
and incase you have firestarter or anything similar running, you need to open port 80 there..

November 21st, 2008, 12:37 PM

I don't have any firewall. I have the computer set up under static NAT as is. I opened port 80 and that seemed to work for a while yesterday.

Now today it still won't work again ...

November 21st, 2008, 04:44 PM
ensure that your ip address hasnt changed..