HUP signals to Unbound
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Been seeing this recently in the DHCP logs:
Sep 18 16:48:13 dhcpleases Sending HUP signal to dns daemon(37005)
After every DHCP transaction, it almost seems like DHCP is trying to kill DNS? I do have the option to register DHCP hostnames (dynamic and static) with Unbound, but not sure what warrants the HUP? Anyone have any ideas to enlighten me?
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Some symptoms are explained there
https://forum.pfsense.org/index.php?topic=117570
https://forum.pfsense.org/index.php?topic=118092 -
Definitely the first. I'm registering leases in Unbound. So I suppose this is expected then; once the ACK goes out, the hostname is registered and Unbound is reloaded?
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Yes because Unbound can't otherwise update the host entries to make them available for resolving. It's a common UNIX methodology for services to reload configuration files on SIGHUP and ignore changes otherwise.
