Rick Stevens writes:
On 07/01/2014 01:13 PM, David Benfell issued this missive:Hi all,I have no idea why this might be happening. I've looked at the systemd control file for postfix and compared it to dovecot's. Both want the network.target before starting."want" is a weakened version of "requires". It doesn't guarantee start sequence and if the target fails to start, it doesn't stop THIS service from starting ("requires" WOULD prevent this service from starting if the target of the "requires" failed).
So this is a bug, then. Neither 'Wants' nor "Requires' was present. It only had After.
The difference is that dovecot starts correctly. Postfix does not. The problem has only appeared since Saturday, when I probably did a yum update. Postfix issues an error from one of the pre-commands having to do with the aliases database saying its network interface (and it duly lists the IPv4 address) doesn't exist. Starting postfix manually later works.Have you checked the postfix.service file and verified it has "After=network.target" in it? That should make sure the network startsbefore postfix.
Actually, this is backwards. It didn't have the 'Wants', only the 'After'. But following your suggestion above, I am adding a 'Requires' instead of the 'Wants'.
Thanks! -- David BenfellSee https://parts-unknown.org/node/2 if you do not understand the attachment.
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