Thanks, I signed up with dydns.org. It seems to be working.
On Tuesday 01 January 2002 08:01 pm, you wrote: > On Tue, 2002-01-01 at 21:43, ajax wrote: > > Hi, > > I'm was looking at trying to set up postfix on my gateway/router. The > > mandrake-user doc say that I need a fully qualified domain name. I'm a > > little confused at what to use. My internet access is by cable with a > > dynamic ip address. I noticed that windows(before I set up a gateway) > > thinks my domain name is name.vc.shawcable.net where name is the name I > > gave the computer. Is this ok to use? Anyone on vc.shawcable.net could > > have chosen the same name. > > Thanks > > There are several possible solutions for you. The main thing you need to > do is make sure you have a valid domain name like myserver.mydomain.org, > where myserver is the actual hostname, mydomain.org is the domain name, > and myserver.mydomain.org is the fully qualified domain name. The reason > for this is that many mail servers refuse to relay or even receive mail > from servers for which they con't do a dns lookup. A dns lookup requires > having your server registered with a domain, thus the need for a sully > qualified domain name. > > name.vc.shawcable.net might work, as long as your ISP maintains a dns > entry for that host name. To test this, have someone out on the Internet > try to ping or traceroute to your system. If they can resolve the domain > name into an IP address and "find" you, then everything is ok. > Otherwise, you will need to register a domain, either a "permanent" > domain name, or a subdomain of a public domain name provider like > dyndns.org. I use dyndns.org, and they work fine. They allow you to have > either a dynamic or static IP address, and give you a host name of > myserver.dyndns.org. My server is sildara.dyndns.org, and you should be > able to point your web browser to my server and see a boring web page. > > There are other things to be aware of, like the possibility that your > ISP will block certain ports (especially port 80, because of the Code > Red worm from a few months back). Also, depending on how your cable > modem works, you might need to do some special configuration to allow > your server to be visible to the Internet. > > Do some more reading of the docs, and if you have more questions, just > post them. > > Dave
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