So lately, I am having problems accessing my 0x82.com at home. This domain sits on a dynamic IP address, and I use editdns to update the DNS records.

EditDNS advertises my A record with a 0 TTL. However, I found that my ISP Sapo caches the record with a huge TTL:

0x82.com.        604800    IN    A    82.155.174.2

Before I shout “what th f0ck are wrong with this guys”, I still have to do a quick read of the relevant RFC, because I think that a 0 TTL may not be a “standard” thing…

As always, if you know something about this, please shoot! :-)

DNS Problems solved

Published at Wed 21 November, 2007 02:48 | Permalink Permalink | Comments Comments (0) | Trackbacks Trackbacks (0)

As you probably might felt, my domain was having serious DNS problems for the past week or so. In spite of the problems, I manage to get a large number of visits on a rant post with a smart title “Apple Hardware Sucks” :-)

For a while I was using the free zoneedit service. It worked for a year or so, and I recommended it to all my friends! However, one week ago, the slave NS stoped updating from the master NS. This resulted in all kind of problems when using this domain. I contacted the zoneedit admins and they were quick to anwser, saying that they were aware of the problem and their sysadmins were working on it.

3 days passed and the problem persisted. I contacted them again and they told that the sysadmins still didn’t found what is causing the problem. What the *? I quit!

Since I’m using ddclient to update my dynamic IPs, I searched the docs and the first protocol supported was dnspark. Registered, moved my NS, updated the scripts, back online :-)

Bye bye zoneedit, you served me well.

Tags dns

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My name is Ruben Fonseca. I'm a Computer Science and Systems Engineer from Portugal that loves FLOSS.

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