Public bug reported:
Hello,
I think there is a race condition at startup between postfix and DHCP
(or the network startup code), leading to an empty copy of resolv.conf.
Specifically, I'm running Ubuntu 16.10 on an x86_64 workstation, which
gets its network configuration via DHCP.
I am also using postfix, and since "a few weeks", the outgoing mails are
pending in the mail queue until I do 'service postfix restart', which
updates postfix's copy of resolv.conf in
/var/spool/postfix/etc/resolv.conf.
When I say since "a few weeks", it's because I'm not exactly sure when
the problem appeared, but for sure it used to work. I'd say the problem
appeared when I upgraded from 16.04 to 16.10.
** Affects: postfix (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1661992
Title:
postfix race condition with DHCP, copies an empty resolv.conf
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