DDNS question for home server

cgram23

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Aug 9, 2002
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I've been doing a ton of research, but I can't quite figure this out. Currently, I have a server at home running Windows 2003 Business Server. It's running DNS, DHCP, and file sharing. I want to buy a custom domain name and run a web/email server as well. From everything I've read, it seems like I'd have to pay a dynamic dns service since my IP at home is dynamic. Asside from paying for a static IP, is there any way around this?

For some reason, I was thinking that since I'm running a DNS server, that I could do somethig with that, but I can't wrap my head around what to do.

Any thoughts??

Thanks!
 
Their used to be some free services out there, how ever keep in mind DNS is cached which means once your IP changes it will take a while before every ones DNS cache expires and gets the new info.

Also, if you are on a dynamic IP, read the agreement you signed with your ISP, I'm pretty sure it will say running "servers" on it's network is not allowed. Also running email off a dynamic IP is likely to have any email sent flagged as spam (if your ISP allows it at all) and I wouldn't doubt incoming connections on port 25 will be blocked.
 
If you can't get a static address then yes, you have to use some of DDNS providor. You also have to make sure that you are allowed to host these services with your ISP.
 
if you have a dynamic ip, chances are that you wont be able to host web or email. alot of email is marked as spam with a dynamic ip.

suggestion: upgrade your plan to a buisness account generlaly not much more and you get static ip (usually multiple) as well as open ports/
 
Also, if you are on a dynamic IP, read the agreement you signed with your ISP, I'm pretty sure it will say running "servers" on it's network is not allowed. Also running email off a dynamic IP is likely to have any email sent flagged as spam (if your ISP allows it at all) and I wouldn't doubt incoming connections on port 25 will be blocked.

If your ISP does this to you, you need to change ISPs.

I do exactly what you are wanting to implement, only using linux. I registered an old domain a long time ago, and setup an account with dyndns.org. Back then, if you gave them a one-time donation for $30 (per domain), they would provide DDNS service for it for life. I then let the domain lapse, and several years later decided to pick it up again. I registered it with mydomain.com and logged back into my old dyndns.org account and verified that they would still provide my service. In my mydomain.com account, I told it I wanted to use dyndns.org, and setup a ddns client on my server (ddclient) to update my IP periodically (you can set the frequency, although too frequent is a no-no). Created an MX record that points to the A record I update - and viola - it works.

The 'spam' comment above is not true. It is verified by a DNS lookup, which you have setup. The server on the other end has no idea that you are using a dynamic IP.
 
Unless the receiving server does an rDNS checkup. The majority of them do, and when a server named 'sever1.domain.com' is trying to send mail, and the reverse DNS points to something like dhcp-xx-xx-xx-xx-provider.com, it's not going to accept the mail as the PTR record doesn't match.
 
My isp doesnt really have any rules against web hosting etc, and to be honest i dont think a isp is providing a fair service if you cant use the connection for what you pay for, how you like. Its just like having cable television, having all the porn channels available but if you watch one your service provider willl cut you off, if the ports are open imo you can take use of them.
 
If your ISP does this to you, you need to change ISPs.

I do exactly what you are wanting to implement, only using linux. I registered an old domain a long time ago, and setup an account with dyndns.org. Back then, if you gave them a one-time donation for $30 (per domain), they would provide DDNS service for it for life. I then let the domain lapse, and several years later decided to pick it up again. I registered it with mydomain.com and logged back into my old dyndns.org account and verified that they would still provide my service. In my mydomain.com account, I told it I wanted to use dyndns.org, and setup a ddns client on my server (ddclient) to update my IP periodically (you can set the frequency, although too frequent is a no-no). Created an MX record that points to the A record I update - and viola - it works.

The 'spam' comment above is not true. It is verified by a DNS lookup, which you have setup. The server on the other end has no idea that you are using a dynamic IP.

You do realize a few groups build RBLS full of just dynamic IP ranges they detect? Also as stated previously many will do RDNS lookups and if they don't match or do not exist the connection will just be dropped.

My isp doesnt really have any rules against web hosting etc, and to be honest i dont think a isp is providing a fair service if you cant use the connection for what you pay for, how you like. Its just like having cable television, having all the porn channels available but if you watch one your service provider willl cut you off, if the ports are open imo you can take use of them.
If you are paying for the channels you are paying for the service, but if you are trying to use a hacked cable box to get service you didn't pay for then I'm sure they would cut you off. The point is if it's against your terms of service I wouldn't suggest doing it.
 
You do realize a few groups build RBLS full of just dynamic IP ranges they detect? Also as stated previously many will do RDNS lookups and if they don't match or do not exist the connection will just be dropped.

The point is if it's against your terms of service I wouldn't suggest doing it.

Yes, and agreed. I can however state that I've never had a delivery failure. It's not bullet proof, but it hasn't failed either. I too say that you shouldn't violate your terms of service, but I do think that if your terms prevent you from hosting services, there are many other providers willing to let you do so.
 
Yes, and agreed. I can however state that I've never had a delivery failure. It's not bullet proof, but it hasn't failed either. I too say that you shouldn't violate your terms of service, but I do think that if your terms prevent you from hosting services, there are many other providers willing to let you do so.

That is why I suggested reading them, I know Mediacom (my current ISP) forbids running "servers". They don't exactly enforce it though.
 
Created an MX record that points to the A record I update - and viola - it works.

thats the part I do not understand.

I am using IPcop's dynamic DNS to update my IP with my dyndns.org subdomain. But now I want to purchase my own domain.

What is a nameserver, and why do I need one? Why doesn't a DNS company just redirect a web address to my IP, and thats it.

And does anybody know the cheapest company for a domain + DDNS???

thanks
 
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