Hi,

I'm using rsyslog as packaged by Debian 12 (bookworm). I'm logging
to central servers:

$DefaultNetstreamDriver gtls
[…]
*.* @@server.example.com:10514

I'm using client TLS certificates that expire after 3 months. I have
automation to put the updated certificate files in place, but if I
do not restart rsyslog then it does not pick up the new certificates
and eventually the client rsyslog is rejected and cannot re-connect.

I can easily restart rsyslog when new certificate files are put in
place, but then I get logs like this from every client host (many):

2023-12-30T02:32:01.521137+00:00 client1.example.com rsyslogd: omfwd: remote 
server at server.example.com:10514 seems to have closed connection. This often 
happens when the remote peer (or an interim system like a load balancer or 
firewall) shuts down or aborts a connection. Rsyslog will re-open the 
connection if configured to do so (we saw a generic IO Error, which usually 
goes along with that behaviour). [v8.2302.0 try https://www.rsyslog.com/e/2027 ]
2023-12-30T02:32:01.531001+00:00 client1.example.com rsyslogd: action 
'action-19-builtin:omfwd' suspended (module 'builtin:omfwd'), retry 0. There 
should be messages before this one giving the reason for suspension. [v8.2302.0 
try https://www.rsyslog.com/e/2007 ]
2023-12-30T02:32:02.327418+00:00 client1.example.com rsyslogd: action 
'action-19-builtin:omfwd' resumed (module 'builtin:omfwd') [v8.2302.0 try 
https://www.rsyslog.com/e/2359 ]

So my simple question is, if I instead send a HUP signal to rsyslog,
will it rel;oad its updated TLS certificate files?

Or, is there another graceful way to do that?

The above log lines seem harmless but they trip my monitoring and I
would rather not programmatically ignore them as I may end up
ignoring a real problem later on.

Thanks,
Andy
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