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I receive emails from apticron about available updates for my Ubuntu server. That's great so far, but in the email, there are 4 IP addresses listed where I expect only 2.

The two IP addresses I expect: my new IPv4 address and my IPv6 address.

The IP address I don't expect: my old IPv4 address and my new IPv4 address again (duplicate).

I can't exactly tell in how many places I changed from the old IP address to the new IP address, but it seems I forgot at least one place which is relevant for apticron. Any ideas in which files I should start looking for?

In /etc/apticron/apticron.conf, it says that it will use the ip command to figure out the addresses. But when I run ip addr, it shows only my new addresses, not my old one.

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Did you check /etc/apt/apt.conf.d/50unattended-upgrades? –  Mitch Feb 10 '14 at 8:47
@Mitch: there is no IP address in 50unattended-upgrades. –  Thomas W. Feb 10 '14 at 11:12

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