Dynamic IP -> DSL -> mail/ftp

[sabrelinux]

Is there a way to setup a mail/ftp serve on a Dynamic IP/ DSL line. Are there programs out there that will change my ip number in linux if disconnected (rarely happens)? Any information is helpful and appreciated. Never tried this with dynamic ip number...thanks.

Sabrelinux

[giulix]

I used this one (http://www.no-ip.com/) a few years back.. Now there are probably many others. The way this works is you download and install a small watchdog program which monitors your IP address. Then you get assigned a domain name at noip.com, like mydomain.noip.com. When your IP address changes, the watchdog sends a message back to the noip.com DNS servers so that your entry gets updated with the new IP address.

[KClaisse]

My DNS redirect provider has a service called MailHop Backup MX. It costs money, but they say they will keep an unlimited amount of mail (no size restrictions) for up to 10 days if you server goes down.

Here's the specifics (http://www.dyndns.com/services/mailhop/backupmx.html)

[centos_x]

FTP is no problem neither is mail but do expect a lot of bounce backs coming from a dynamic IP, Virtually impossible to keep things flowing nicely....

[KClaisse]

FTP is no problem neither is mail but do expect a lot of bounce backs coming from a dynamic IP, Virtually impossible to keep things flowing nicely....

Not really, My IP is dynamic and changes about twice a month. My router has built-in software that updates DynDNS with my new IP, haven't missed an email yet.

[marcrblevins]

Look into ddclient.

yum install ddclient

May sure you have use=web checkip.dyndns.org uncommented.

[centos_x]

From my experience of running one for almost 4, one year on dynamic pool, never had good luck running mail exchange from a dynamic pool always hit and miss, either bounced back or got sent into a (blackhole) filter just intercepted it and deleted before arriving in recepients inbox.

Lot of ISP's by default blacklist all dynamic pools.....


Static block is much easier to manage


One good example is AOL, I had similar situation to you would keep same IP till I released and renewed routers MAC address, If the IP assigned to modem at renewal time falls in IP range that is in their filters. They will make no exception for dynamic pools, only static blocks and only after testing your system for open relay etc....

[djvaporz]

personally i use dyndns for dns needs and mx record...

you can install the ddclient, which can run as a daemon to update your ip address to dyndns.