Syslog is a protocol designed to relay system event messages. Questions related to syslog involve event notification and logging capabilities.

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Investigating a system “freeze”

Am on Ubuntu 10.04.2 LTS Linux skiran 2.6.32-32-generic-pae #62-Ubuntu SMP Wed Apr 20 22:10:33 UTC 2011 i686 GNU/Linux My machine froze for the 5th time in 2 days. Had to reboot, and login to a ...
16
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3answers
34k views

How to enable boot messages to be printed on screen during boot up? [duplicate]

How to enable boot messages, kernel messages and other logs of various services to be printed on screen during boot up?
16
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2answers
17k views

Where are Upstart log messages on Ubuntu 13.X?

On Ubuntu 12.04, I can find Upstart log messages in /var/log/syslog. Commands: # initctl log-priority info # initctl emit hello Log: Apr 1 01:56:56 precise64 kernel: [ 8365.820425] init: ...
38
votes
2answers
74k views

Difference between /var/log/messages, /var/log/syslog, and /var/log/kern.log?

For the purposes of kernel logging, why do I have three different, non-inclusive levels of logging amongst /var/log/messages, /var/log/syslog, and /var/log/kern.log?
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votes
3answers
12k views

How do I limit the size of my syslog?

I've got my mom's computer running Ubuntu 12.04 LTS. It's been working just fine but all of the sudden syslog has been filling up. And by filling up I mean I just deleted a /var/log/syslog that was ...
10
votes
1answer
67k views

How do I configure rsyslog to send logs from a specific program to a remote syslog server?

I have a program which outputs to syslog with a given tag/program name. I'd like to be able to filter syslog traffic from that program and send it to a remote syslog server, leaving all other syslog ...
7
votes
2answers
10k views

What could be the cause for these strange UFW block entries in my syslog?

I've recently noticed a large number of recurring UFW blocks in my syslog. This surprised me as I have no UFW rules set: $ sudo ufw status verbose Status: active Logging: on (low) Default: deny (...
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3answers
2k views

How to quiet Ubuntu 15.04 noisy syslog

On Ubuntu 15.04 (Vivid Vervet) /var/log/syslog is extremely noisy. There are messages every few seconds, from systemd, thermald, gnome-session. Most messages appear to be non-essential, simply status ...
28
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1answer
8k views

“CRITICAL: We failed, but the fail whale is dead. Sorry…”

When I started up my machine today I got some quite bizarre messages in my syslog: ... Aug 17 18:58:15 Floral-Towel systemd[1349]: Startup finished in 266ms. Aug 17 18:58:15 Floral-Towel systemd[1349]...
7
votes
1answer
3k views

Why is there “seccomp” events related to Google Chrome in syslog?

Was in my syslog today and noticed that the Google Chrome web browser is create TONS of events that look like this: Dec 7 13:11:02 mycomp-sys76 kernel: [ 8371.604406] type=1701 audit(1354903862.279:...
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votes
2answers
4k views

Is there a way to suppress one specific message from syslog?

I'm getting a lot of Dec 27 08:35:49 htpc kernel: [ 1552.153797] pciehp 0000:00:1c.5:pcie04: Card not present on Slot(0-2) Dec 27 08:35:49 htpc kernel: [ 1552.157744] pciehp 0000:00:1c.5:pcie04: ...
0
votes
2answers
7k views

How to view '/var/log/syslog' contents without crash

For various reasons it is necessary for me to check the log of my computer in /var/log/syslog, but this has become a bit of a problem because I am not actually able to view the logs in that file ...
0
votes
1answer
8k views

How can I monitor syslog and send notification based on events?

I'm going to be sending syslog from my one device/server to an Ubuntu server. On the Ubuntu server (receiving the syslog), I want it to trigger a script when specific syslog messages arrive. Is this ...
6
votes
3answers
25k views

rsyslogd stopped writing to /var/log/syslog two days ago

It seems rsyslogd stopped writing to /var/log/syslog on my laptop two days ago, and I do't know why. This is visible in the following: clh@avignon:/var/log$ ls -lt | head -30 total 12600 drwxr-xr-x ...
2
votes
1answer
6k views

How do I stop /var/log/kern.log.1 from consuming all my disk space?

I have a 80 GB HDD without any partitions. One day I realised that I have lost most of my free disk space. I discovered that /var/log/kern.log.1 takes up 25 GB of space and there is no delete option ...
1
vote
1answer
502 views

upstart logs missing [duplicate]

I have been trying (unsuccessfully) to automate a script (or at least the actions contained within) that I run in Terminal each time a reboot my system, to enable the WiFi. I have been following as ...