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General DNS & Domains Dyn Email Update Clients Dyn Developer

My website is http://sicp.ath.cx/, but recently I have been having to use a new address (http://oigo.ath.cx) because the IP Address for http://sicp.ath.cx keeps changing every so often, forcing me to update it back to the detected IP Address. The strange thing is that I am not using an updater client, but my http://oigo.ath.cx host always stays the same, yet my other one updates randomly. What could be causing this?

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asked May 18 at 08:11 AM

sicpsnake\'s gravatar image

sicpsnake
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2 answers:

I did a quick lookup of your logs, you definitely have an update client at another location. The host modify entries are you manually updating the IP address on our site.

May 18 04:00:43 24.155.139.135 Host modify -> 24.155.139.135 N/A, dnsupdate:good

May 18 02:52:36 72.48.73.106 hostname=sicp.ath.cx&myip=72.48.73.106&wildcard=OFF good 72.48.73.106 ez-update-3.0.10 mips-mips-linux-gnu [daemon] (by Angus Mackay)

May 17 04:23:12 24.155.139.135 Host modify -> 24.155.139.135 N/A, dnsupdate:good

May 17 02:52:28 72.48.73.106 hostname=sicp.ath.cx&myip=72.48.73.106&wildcard=OFF good 72.48.73.106 ez-update-3.0.10 mips-mips-linux-gnu [daemon] (by Angus Mackay)

Unfortunately I don't know what ez-update is, but it is most likely a router update client.

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answered May 18 at 03:08 PM

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cgonyea ♦
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You've just confirmed my theory. :) I just remembered last night that I was messing with the DDNS Updater on my friend's computer a long time ago and used my host as a test. I have changed my password and it should be cool now. Thank you all for the assistance. I really appreciate it.

May 19 at 05:11 AM sicpsnake
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Only a DDNS Update Client could be causing this. Did you ever leave or sell a computer or router or other device, which had a DDNS client activated? The IP address being applied should give some indication from where these updates originate. Changing your account's password should stop the phantom immediately.
See also 2176 and 1459.


According to your update logs, both IP addresses are located in San Marcos (Texas), and they belong to the same ISP (Grande Communications). So probably your competiting second Update Client is not too far away. Alternatively, could it be that your ISP quite often changes your IP address, or could you have in fact two parallel connections, doing kind of load balancing, and using those two different IP address ranges? This could also explain the phantom...

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answered May 18 at 09:16 AM

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RotBlitz ♦
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No, I have only one other computer in which I had ever installed a DDNS Update Client on and it's since been removed, plus it's not even connected to the Internet. There is currently not a DDNS Update Client active. I changed my password as per your instructions and I will wait to see if this ghosting continues. Thank you very much for your assistance!

May 18 at 12:07 PM sicpsnake
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