The daemon gets hung reading from a socket for a dead or dying interface/address for 'checkip.dyndns.com' ('checkip.dyndns.org' is a CNAME record for 'checkip.dyndns.com'), which has two A records: 204.13.248.70 and 91.198.22.70. For some reason, the resolver always returns the second address, which has begun hanging just recently:
root 25027 1 0 18:22 pts/0 00:00:00 ddclient - reading from checkip.dyndns.com port 80 I, like the original poster, have been using ddclient for a long time, with the checkip.dyndns.org as the IP checking service. I became aware of this problem after seeing the message log spam from timeouts: Oct 14 01:50:13 asusb202 ddclient[14614]: WARNING: TIMEOUT: checkip.dyndns.org after 120 seconds Oct 14 02:52:59 asusb202 ddclient[14614]: WARNING: TIMEOUT: checkip.dyndns.org after 120 seconds Oct 14 03:50:45 asusb202 ddclient[14614]: WARNING: TIMEOUT: checkip.dyndns.org after 120 seconds Oct 14 04:25:54 asusb202 ddclient[14614]: WARNING: TIMEOUT: checkip.dyndns.org after 120 seconds Oct 14 05:31:05 asusb202 ddclient[14614]: WARNING: TIMEOUT: checkip.dyndns.org after 120 seconds Oct 14 06:33:51 asusb202 ddclient[14614]: WARNING: TIMEOUT: checkip.dyndns.org after 120 seconds Oct 14 07:29:02 asusb202 ddclient[14614]: WARNING: TIMEOUT: checkip.dyndns.org after 120 seconds Oct 14 07:57:56 asusb202 ddclient[14614]: WARNING: TIMEOUT: checkip.dyndns.org after 120 seconds Oct 14 08:56:17 asusb202 ddclient[14614]: WARNING: TIMEOUT: checkip.dyndns.org after 120 seconds Oct 14 09:47:03 asusb202 ddclient[14614]: WARNING: TIMEOUT: checkip.dyndns.org after 120 seconds Oct 14 11:01:37 asusb202 ddclient[14614]: WARNING: TIMEOUT: checkip.dyndns.org after 120 seconds Oct 14 13:04:03 asusb202 ddclient[14614]: WARNING: TIMEOUT: checkip.dyndns.org after 120 seconds Oct 14 13:46:48 asusb202 ddclient[14614]: WARNING: TIMEOUT: checkip.dyndns.org after 120 seconds Oct 14 16:16:06 asusb202 ddclient[14614]: WARNING: TIMEOUT: checkip.dyndns.org after 120 seconds Oct 14 17:12:27 asusb202 ddclient[14614]: WARNING: TIMEOUT: checkip.dyndns.org after 120 seconds Oct 14 17:35:24 asusb202 ddclient[14614]: WARNING: TIMEOUT: checkip.dyndns.org after 120 seconds -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org