* Will Yardley <post...@veggiechinese.net>: > On Mon, Sep 15, 2014 at 04:54:11AM +0000, Viktor Dukhovni wrote: > > * Your DNS resolution is not functioning, which could also > > explain slow login, but in this case, you'd generally max > > out the smtpd(8) process limit. > > Yes, this one occurred to me too, but I did test that specifically, and > it doesn't seem to be the issue. The systems have local unbound and > rbldnsd instances running, and name resolution appears to be functioning > quickly on the system.
Are you using unbound on a RedHat system? If that's the case you might notice syslog messages claiming syslog can't use /dev/log because the device is busy. That's because unbound's init-skript bind-mounts /dev/log to /var/cache/unbound/dev/log (?) but fails to unmount it correctly. In that case stop unbound, unmount the bind mount several times (!) until you get an ummount error message and then restart rsyslog and unbound. Things should be back to normal then. p@rick -- [*] sys4 AG https://sys4.de, +49 (89) 30 90 46 64 Franziskanerstraße 15, 81669 München Sitz der Gesellschaft: München, Amtsgericht München: HRB 199263 Vorstand: Patrick Ben Koetter, Marc Schiffbauer Aufsichtsratsvorsitzender: Florian Kirstein