Damn it, tried to SSH into my server this morning using a pre-defined shortcut from my ~/.ssh/config file which uses a CNAME that is bound to our static hostname we get from our ISP, nothing…
Next up, ssh but using the servers internal IP adres, that worked.
Re-attached my screen and irssi and it scared the hell out of me, connection lost and not reconnected somewhere around 02h58 this night.
Already guessing what has happened I asked our dear server what it’s IP address was, which returned a different IP address.
Querying a few nameservers I came to the bizar conclusion that some of the DNS entries had the correct new IP address and some returned the old IP address.
So I queried @home’s first nameserver:
daenney@oracle:~$ cat /etc/resolv.conf
search ensch1.ov.home.nl
nameserver 213.51.129.37
nameserver 213.51.144.37
daenney@oracle:~$ dig @213.51.129.37 cc1108406-b.ensch1.ov.home.nl
;; ANSWER SECTION:
cc1108406-b.ensch1.ov.home.nl. 23541 IN A 82.75.233.140
Not so good, that’s the old IP address. Time to try the other nameserver:
daenney@oracle:~$ dig @213.51.144.37 cc1108406-b.ensch1.ov.home.nl
;; ANSWER SECTION:
cc1108406-b.ensch1.ov.home.nl. 86400 IN A 82.75.221.151
Good perfect, that returns the expected IP address…
So by now I am annoyed and call my ISP explaining the problem and that they really ought to fix this, not the first time it happens and the servers already had 10h to fix the issue between them.
The response:
ISP hepdesk: Yes sir, happens quite often and is nothing to worry about. This issue will resolve itself in 48h, so in about 38h all your cnames should be working again too.
me: do you realize that 48h is a but too much?
ISP helpdesk: I have no idea sir if this is much or not, I can only tell you what is on my screen.
/cry
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