Take the 2-minute tour ×
Server Fault is a question and answer site for professional system and network administrators. It's 100% free, no registration required.

I'm not even sure if this is possible. My external Ip changes about once every 3 days. How would I prevent it from doing so? I have to connect a domain to my IP and I can't give it a domain to connect to (in the case of "no-ip.com"). Does anybody have any ideas?

Thanks if you can!

share|improve this question
add comment

closed as too localized by Zoredache, squillman, ThatGraemeGuy, RobM, sysadmin1138 Apr 14 '11 at 19:34

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

3 Answers

up vote 1 down vote accepted

Depending on the DHCP configuration at your ISP, you could keep the same address for a very long time if you never shut down your internet connection. If you have an always-on connection then your IP address should not change unless your modem turns off or otherwise is disconnected.

Other than that, @Jason is correct. A good ISP will only charge a modest fee for a static address but some force you to subscribe to "business" internet in order to get a static address.

share|improve this answer
add comment

Call your ISP. Request a static IP address from them. Pay the additional costs to your ISP for the static IP address.

share|improve this answer
    
How much are these static Ips normally? –  Xan Apr 14 '11 at 18:30
3  
I pay 1 galactic credit per month. But in all seriousness, the pricing is all over the map. It could be very cheap, or very expensive. –  Zoredache Apr 14 '11 at 18:36
add comment

Dynamic DNS? I use that for a server I run out of my home. Check out dyndns.com. It's free.

share|improve this answer
1  
I go with a static IP even for a fee before using dyndns.com. –  Alex Apr 14 '11 at 19:10
    
The problem with this is, I have to provide my domain with an Ip, for whatever reason, it won't accept other domains. –  Xan Apr 14 '11 at 21:08
add comment

Not the answer you're looking for? Browse other questions tagged or ask your own question.