System Log on USB

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AndyOxon
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PostPosted: Sat Feb 12, 2022 16:16    Post subject: Reply with quote
I’d write: ‘USB sticks not recommended for saving logs due to wear. USB HDD is preferred for this reason!’ I am sure I’ve read this somewhere already. I wouldn’t even mention jffs since it doesn’t seem appropriate here.
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oliver44
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PostPosted: Sat Feb 12, 2022 17:21    Post subject: Reply with quote
@ egc I modified with the new recommendation made by you ,it seems that now it displays the information correctly, but notice that via the web I no longer have the updated information

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Last edited by oliver44 on Sat Feb 12, 2022 17:35; edited 1 time in total
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ho1Aetoo
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PostPosted: Sat Feb 12, 2022 17:34    Post subject: Reply with quote
oliver44 wrote:
@ egc I modified with the new recommendation made by you ,it seems that now it displays the information correctly, but notice that via the web I no longer have the updated information


# link /jffs/messages to /tmp/var/log/messages and make the logs readable in the WebIF

Code:
ln -sf /jffs/messages /tmp/var/log/messages
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oliver44
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PostPosted: Sat Feb 12, 2022 17:39    Post subject: Reply with quote
@ho1Aetoo where do i put this code, do i need to change some code or do i need to add your code somewhere?

Code:
ln -sf /jffs/messages /tmp/var/log/messages
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ho1Aetoo
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PostPosted: Sat Feb 12, 2022 17:40    Post subject: Reply with quote
Quote:
killall syslogd
syslogd -Z -L -s 8192 -O /jffs/messages


>>>

Code:
killall syslogd
syslogd -Z -L -s 8192 -O /jffs/messages
ln -sf /jffs/messages /tmp/var/log/messages
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oliver44
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PostPosted: Sat Feb 12, 2022 17:53    Post subject: Reply with quote
Everything seems to be working right, thanks again for all the help!

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oliver44
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PostPosted: Sat Feb 12, 2022 17:56    Post subject: Reply with quote
We could set a script to delete the information within a certain interval, every 7 days or 5 days, or even after a restart ?
I notice that he remembers all the logs since I let them on USB memory!
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https://ipv6.chappell-family.com/ipv6tcptest/
https://en.internet.nl/connection/e91f490fe1c54cb2b78145c0ab0d2b5a/results
http://www.dnssec-or-not.com/
https://dnscheck.tools/#results

Last edited by oliver44 on Sat Feb 12, 2022 18:01; edited 1 time in total
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ho1Aetoo
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PostPosted: Sat Feb 12, 2022 18:00    Post subject: Reply with quote
Well you can delete the log via cronjob, I always delete my logs on sundays.

Code:
0 0 * * 0 root rm /jffs/messages


https://en.wikipedia.org/wiki/Cron
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oliver44
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PostPosted: Sat Feb 12, 2022 18:05    Post subject: Reply with quote
in cron Jobs I still have a script from adblock, I can pass it under the first script ?

I'm sorry to ask so many questions, but I really don't know how these scripts work Embarassed
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Last edited by oliver44 on Sat Feb 12, 2022 18:10; edited 1 time in total
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ho1Aetoo
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PostPosted: Sat Feb 12, 2022 18:07    Post subject: Reply with quote
without blank line it is certainly better
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oliver44
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PostPosted: Sat Feb 12, 2022 18:10    Post subject: Reply with quote
I think that's what you meant

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egc
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PostPosted: Sat Feb 12, 2022 18:21    Post subject: Reply with quote
-s sets the max file size in KB in the example 8 MB is used.

When it reaches max size it should rotate I assume, but have not tested it.
Perhaps test with a low value and see what will happen?
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ho1Aetoo
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PostPosted: Sat Feb 12, 2022 18:31    Post subject: Reply with quote
On the one SD card in one of my raspberrys I have already written 3TB of logs and the card is still alive.
If it dies then I just buy a new one for a few €.

Mr. Green
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oliver44
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PostPosted: Sat Feb 12, 2022 18:32    Post subject: Reply with quote
egc wrote:
-s sets the max file size in KB in the example 8 MB is used.

When it reaches max size it should rotate I assume, but have not tested it.
Perhaps test with a low value and see what will happen?


give me an example and I'll test it

there is the possibility for me to manually edit / delete the log file via winscp, or not recommended ?

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Last edited by oliver44 on Sat Feb 12, 2022 18:38; edited 1 time in total
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ho1Aetoo
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PostPosted: Sat Feb 12, 2022 18:38    Post subject: Reply with quote
Quote:
syslogd --help
BusyBox v1.35.0 (2022-02-09 01:14:11 +07) multi-call binary.

Usage: syslogd [OPTIONS]

System logging utility
(this version of syslogd ignores /etc/syslog.conf)

-n Run in foreground
-Z Adjust incoming UTC times to local time
-R HOST[:PORT] Log to HOST:PORT (default PORT:514)
-L Log locally and via network (default is network only if -R)
-C[size_kb] Log to shared mem buffer (use logread to read it)
-O FILE Log to FILE (default: /var/log/messages, stdout if -)
-s SIZE Max size (KB) before rotation (default 200KB, 0=off)
-b N N rotated logs to keep (default 1, max 99, 0=purge)
-l N Log only messages more urgent than prio N (1-Cool
-S Smaller output
-t Strip client-generated timestamps


Quote:
killall syslogd
syslogd -Z -L -s 8192 -O /jffs/messages
ln -sf /jffs/messages /tmp/var/log/messages


default is 200KB

eg

Code:
killall syslogd
syslogd -Z -L -s 200 -O /jffs/messages
ln -sf /jffs/messages /tmp/var/log/messages


~4k = 1 page
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