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Date:      Fri, 1 May 2015 03:02:44 +0000
From:      John Howie <john@thehowies.com>
To:        "William A. Mahaffey III" <wam@hiwaay.net>, "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org>
Subject:   Re: minor syslog issue
Message-ID:  <D16864F5.3E5FC%john@thehowies.com>
In-Reply-To: <5542BEBA.5080207@hiwaay.net>
References:  <55422366.8060000@hiwaay.net> <554229CE.30009@infracaninophile.co.uk> <55422E43.8090206@hiwaay.net> <5542348D.8000109@infracaninophile.co.uk> <5542BC7F.7050602@hiwaay.net> <5542BEBA.5080207@hiwaay.net>

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Hi William,

Why not just "/etc/rc.d/syslogd restart=B2?

Regards,

John


On 4/30/15, 7:45 PM, "William A. Mahaffey III" <wam@hiwaay.net> wrote:

>On 04/30/15 18:42, William A. Mahaffey III wrote:
>> On 04/30/15 09:02, Matthew Seaman wrote:
>>> On 04/30/15 14:28, William A. Mahaffey III wrote:
>>>> 08:23:28.496828 IP RPiB+.59735 > kabini1.local.syslog: SYSLOG
>>>> syslog.error, length: 59
>>>> 08:23:28.497229 IP RPiB+.59735 > kabini1.local.syslog: SYSLOG
>>>> syslog.error, length: 59
>>> This is the only relevant bit out of your tcpdump output -- it usually
>>> helps if you filter out as much of the irrelevant stuff that you
>>>can[*].
>>>
>>> Anyhow, as you can see, your RPiB+ is logging *from* an arbitrary
>>> high-numbered port.  This time it happens to be using 59735 but that
>>> would probably change with each restart of syslogd.  Basically use the
>>> '-a 192.168.0.0/16:*' form in this case.
>>>
>>>     Cheers,
>>>
>>>     Matthew
>>>
>>> [*] ie. 'tcpdump port syslog' should work as the packets are being sent
>>> to the syslog port on your server.
>>>
>>
>> An update here, I kicked off the above command on both the RPi &
>> kabini1. It took a while, but the RPi did its daily 'syslogd restart':
>>
>>
>> Apr 27 22:00:01 rpi syslogd[603]: restart
>> Apr 28 08:00:00 rpi syslogd[603]: restart
>> Apr 28 22:00:00 rpi syslogd[603]: restart
>> Apr 29 14:54:44 rpi syslogd[603]: Exiting on signal 15
>> Apr 29 10:01:01 rpi syslogd[25366]: restart
>> Apr 29 17:06:15 rpi syslogd[25366]: restart
>> Apr 30 07:28:32 rpi syslogd[25366]: Exiting on signal 15
>> Apr 30 07:28:34 rpi syslogd[27124]: restart
>> Apr 30 08:20:34 rpi syslogd[27124]: Exiting on signal 15
>> Apr 30 08:20:34 rpi syslogd[27124]: Exiting on signal 15
>> Apr 30 08:20:37 rpi syslogd[2779]: restart
>> Apr 30 08:23:43 rpi syslogd[2779]: Exiting on signal 15
>> Apr 30 08:23:43 rpi syslogd[2779]: Exiting on signal 15
>> Apr 30 08:23:45 rpi syslogd[14885]: restart
>> Apr 30 08:41:03 rpi syslogd[14885]: Exiting on signal 15
>> Apr 30 08:41:03 rpi syslogd[14885]: Exiting on signal 15
>> Apr 30 08:41:05 rpi syslogd[27342]: restart
>> Apr 30 09:25:16 rpi syslogd[27342]: Exiting on signal 15
>> Apr 30 09:25:16 rpi syslogd[27342]: Exiting on signal 15
>> Apr 30 09:25:18 rpi syslogd[11087]: restart
>> Apr 30 09:26:03 rpi timed[6547]: This machine is master
>> Apr 30 17:06:15 rpi syslogd[11087]: restart
>> Thu Apr 30 18:32:45 MCDT 2015
>> rpi #
>>
>>
>>  & I got packets both from the RPi & to kabini1, but nothing in
>> kabini1's logfile:
>>
>> rpi # tcpdump port syslog
>> tcpdump: verbose output suppressed, use -v or -vv for full protocol
>> decode
>> listening on usmsc0, link-type EN10MB (Ethernet), capture size 65535
>> bytes
>> 17:06:00.980239 IP 192.168.0.1.59623 > 192.168.0.27.syslog: SYSLOG
>> syslog.info, length: 47
>>
>> [root@kabini1, /etc, 9:26:24am] 503 % tcpdump port syslog
>> tcpdump: verbose output suppressed, use -v or -vv for full protocol
>> decode
>> listening on re0, link-type EN10MB (Ethernet), capture size 65535 bytes
>> 17:07:00.976242 IP RPiB+.59623 > kabini1.local.syslog: SYSLOG
>> syslog.info, length: 47
>>
>> [root@kabini1, /etc, 6:31:31pm] 364 % tail -15 /var/log/messages ;
>> hwclock -r ; date
>> Apr 28 09:30:12 kabini1 kernel: Limiting closed port RST response from
>> 276 to 200 packets/sec
>> Apr 28 09:30:13 kabini1 kernel: Limiting closed port RST response from
>> 239 to 200 packets/sec
>> Apr 28 09:30:14 kabini1 kernel: Limiting closed port RST response from
>> 280 to 200 packets/sec
>> Apr 28 09:30:16 kabini1 kernel: Limiting closed port RST response from
>> 319 to 200 packets/sec
>> Apr 30 08:13:49 kabini1 syslogd: exiting on signal 15
>> Apr 30 08:13:49 kabini1 syslogd: kernel boot file is /boot/kernel/kernel
>> Apr 30 08:16:36 kabini1 kernel: re0: promiscuous mode enabled
>> Apr 30 08:17:53 kabini1 kernel: re0: promiscuous mode disabled
>> Apr 30 08:33:43 kabini1 kernel: re0: promiscuous mode enabled
>> Apr 30 08:41:19 kabini1 kernel: re0: promiscuous mode disabled
>> Apr 30 08:52:53 kabini1 kernel: re0: promiscuous mode enabled
>> Apr 30 09:07:57 kabini1 kernel: re0: promiscuous mode disabled
>> Apr 30 09:18:45 kabini1 syslogd: exiting on signal 15
>> Apr 30 09:18:45 kabini1 syslogd: kernel boot file is /boot/kernel/kernel
>> Apr 30 09:20:47 kabini1 kernel: re0: promiscuous mode enabled
>> hwclock: Command not found.
>> Thu Apr 30 18:39:25 MCDT 2015
>> [root@kabini1, /etc, 6:39:25pm] 365 %
>>
>> syslogd on kabini1 should be accepting traffic from all ports:
>>
>> [root@kabini1, /etc, 6:40:19pm] 366 % ps -ax | grep syslog
>>   783 ??  Is       0:39.07 /usr/sbin/amd -p -a /.amd_mnt -l syslog
>> /host /etc/amd.map /net /etc/amd.map
>> 73506 ??  Is       0:00.10 /usr/sbin/syslogd -a 192.168.0.0/16:* -C -T
>>  8622  4  S+       0:00.00 grep syslog
>> 73648  7  S+       0:00.93 tcpdump port
>>
>> i.e. looks like the traffic is there, but syslogd isn't recording it
>> (?) .... Any clues appreciated.
>>
>
>*Aaaaaaaaaaaaack* !!!! Looks like ipfw was catching it, I had changed my
>rules to allow *some* udp traffic a few days ago, but didn't open it up
>enough. Just changed that & we'll see either later today or tomorrow at
>the next 'syslogd restart' .... Sorry for the noise :-/ ....
>
>--=20
>
>	William A. Mahaffey III
>
>  ----------------------------------------------------------------------
>
>	"The M1 Garand is without doubt the finest implement of war
>	 ever devised by man."
>                            -- Gen. George S. Patton Jr.
>
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