Free Dynamic DNS providers

Discussion in 'Tomato Firmware' started by occamsrazor, Apr 25, 2014.

  1. occamsrazor

    occamsrazor Network Guru Member

    So with stopping to provide free accounts anymore, what other Tomato-compatible options are there that people are using?

  2. Toink

    Toink Network Guru Member

    These router manufacturers should stop supporting as it's default DDNS provider. Both dyndns and no-ip are the only options I usually find in most manufacturer's routers. They should start giving us options to have custom DDNS providers like we have in Tomato and DD-WRT
  3. david3

    david3 LI Guru Member

    I switched from dyndns to no-ip. I tried, too, but the TTL was really long on the free account. I think it was 60 minutes. The TTL on dyndns and no-ip is 60 seconds.
  4. lancethepants

    lancethepants Network Guru Member


    I never had ttl issues with It gets set to 60 seconds, which is resasonable.
    koitsu likes this.
  5. koitsu

    koitsu Network Guru Member

    With regards to, the web GUI (on lets you choose the TTL. I've attached a screenshot. The default is 3600.

    This TTL is supposed to correlate directly with the per-record TTL in DNS, i.e. if you do dig a yourhostname.whateverdomainatafraidorgyouchose you should see something like below (using as an example, specifically dig a

    ;          IN      A
    ;; ANSWER SECTION:   3600    IN      A
    The 3600 shown there is what's supposed to correlate with what's in the GUI.

    Now, all that said -- I've mentioned this before in other threads -- there is no guarantee that other recursive resolvers honour this TTL. In other words, your ISP's DNS servers (if you're using them), or Google's, or whoever, may choose to simply ignore the per-record TTL and instead use whatever they themselves set (could be 9999999 seconds, could be 300 seconds, could be 12345 seconds, whatever). In this case there's nothing you can do about the issue other than not use those DNS servers. And that isn't feasible entirely either, because, for example, you may have control over what DNS servers you use at home, but at your workplace you probably don't, so you're always at the mercy of the DNS infrastructure where you're physically at in addition to all DNS servers between local and remote.

    Attached Files:

  6. david3

    david3 LI Guru Member

    When I tried to change the TTL, it wouldn't let me ("for our premium supporters").


    For my purposes, a TTL of an hour is too long.
  7. lancethepants

    lancethepants Network Guru Member

    It's not a setting you can get to with the free account. You must update through ddns. You may have to wait an hour the first time, but you're good after that. I can verify it worked when I previously used afraid.
  8. koitsu

    koitsu Network Guru Member

    @lancethepants Using what client? The built-in TomatoUSB DDNS stuff doesn't let you set TTL anywhere that I can see.

    Expanding: I think what @lancethepants is saying, re: quoting this part of the FAQ, is that if you have your own domain and host DNS for it using the FreeDNS service (see here), you can combine that with their dynamic DNS capability (and use it with your own domain) to achieve a TTL of 60 seconds, e.g. your FQDN would be whateverdynamichostnameyouwant.yourdomain.tld.

    But if you use one of's stock domains (ex.,, and a few others), and you aren't a subscriber (costs US$2.50/month if you go with the US$30/year plan (see very bottom of page)), then the TTL is always 3600.

    In my case, I pay US$5/month because I use them for both a) DDNS, and b) secondary DNS for numerous domains I own/host on a VPS (I do my own primary DNS, acts as the slave/tertiaries). That's just my situation though.
  9. lancethepants

    lancethepants Network Guru Member

    @koitsu I was meaning the's website. It doesn't let you manually set the ttl unless you're a paid subscriber.
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