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Lars
Senior Member


Joined: 25 Oct 2010
Posts: 134

PostPosted: Mon Mar 12, 2012 2:08 pm    Post subject: Reply with quote

I was just going to add that, running /etc/rc.d/rc.tor status as root gives a more "normal" answer.

But any way, do you know the meaning of
elif kill -0 $PID; then

I read so much that elif is an alternate command, to apply if the condition kill -0 $PID is present. But what does that mean?
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gerasimos_h
Site Admin


Joined: 09 Aug 2007
Posts: 1752
Location: Greece

PostPosted: Mon Mar 12, 2012 2:43 pm    Post subject: Reply with quote

kill -0 $PID
indicates if a signal can be sent, meaning checking if process exist.
0 = exist
Here is an example.
Getting PID of Tor
Code:
root@sms:~# pidof tor
27206


Checking for process
Code:
root@sms:~# kill -0 27206
root@sms:~#

Getting the state
Code:
root@sms:~# echo $?
0


Now try an imaginary process like:
Code:
root@sms:~# kill -0 272061
-bash: kill: (272061) - No such process

And getting state
Code:
root@sms:~# echo $?
1


gerasimos_h

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Lars
Senior Member


Joined: 25 Oct 2010
Posts: 134

PostPosted: Mon Mar 12, 2012 3:29 pm    Post subject: Reply with quote

Thank you, very much indeed!

I'd never seen "kill" being used that way before, "check if" or how I shall put it. I've used it, but only to kill processes (stop them as I earlier interpreted it)

Everyday I learn a little bit more, someday may even enough to dare install Slackware 14 all by myself Wink

My best regards

Lars
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Lars
Senior Member


Joined: 25 Oct 2010
Posts: 134

PostPosted: Mon May 07, 2012 10:01 am    Post subject: Reply with quote

I've now run a Tor-node for a couple of months. Considering my upload-bandwidth it works fairly well, transmitting between 0,5-2GB/24 h.

In /var/log/tor I noticed that every night, exactly at 04:40 tor reloads?
Code:
Apr 15 04:40:02.927 [notice] Received reload signal (hup). Reloading config and resetting internal state.
Apr 15 04:40:02.930 [notice] Tor 0.2.2.35 (git-b04388f9e7546a9f) opening new log file.


This is no setting I've made and I cannot se any other server software restarting simultaneously?

Do you know if this "HUP"-signal comes internally from the SMS-serversoftware, or perhaps could come from some Tor-networkcontrol?

Best regards
Lars
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gerasimos_h
Site Admin


Joined: 09 Aug 2007
Posts: 1752
Location: Greece

PostPosted: Mon May 07, 2012 2:21 pm    Post subject: Reply with quote

That sound like a logrotate

/etc/logrotate.d/tor

Code:
/var/log/tor/*log {
  daily
  rotate 5
  compress
  delaycompress
  missingok
  notifempty
  create 0644 tor tor
  sharedscripts
  postrotate
    /etc/rc.d/rc.tor reload > /dev/null
  endscript
}


gerasimos_h

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Lars
Senior Member


Joined: 25 Oct 2010
Posts: 134

PostPosted: Mon May 07, 2012 7:54 pm    Post subject: Reply with quote

Thank you Very Happy !

That explains something I've wondered about for some weeks!

Best regards
Lars
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