[SSHGuard-users] Multiple instances of sshguard on startup

[John H. <joh...@gm...>]

Hello,

When I start sshguard, like this:
> sudo ./sshguard -l /var/log/auth.log

it seems that three separate sshguard processes are spawned:
> ps -A | grep sshg
 1486 pts/1    00:00:00 sshguard
 1487 pts/1    00:00:00 sshguard
 1488 pts/1    00:00:00 sshg-parser
 1489 pts/1    00:00:00 sshg-blocker
 1491 pts/1    00:00:00 sshguard
 1492 pts/1    00:00:00 sshg-fw-hosts

Is this normal?  Everything seems to be working, but I'm perplexed as to
how three instances are started.  (Unless this is intentional, in which
case there's nothing to see here...)

The following may or may not not be related, but I also had to change the
first non-comment line of the sbin/sshguard script from:
  trap "trap - SIGTERM && kill 0" SIGINT SIGTERM EXIT
to:
  trap "trap - TERM && kill 0" INT TERM EXIT
to avoid the following error on starting or interrupting the script:
  trap: SIGTERM: bad trap

(I'm not sure why my shell complains about this... see for example
https://unix.stackexchange.com/questions/314554/why-do-i-get-an-error-message-when-trying-to-trap-a-sigint-signal
)

Many thanks,

John H