Questions tagged [log]
A log is a record of events during a particular time range. Questions about interpreting logs on Ubuntu or controlling logging.
753
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Where is the cron / crontab log?
I want to verify that my cron job is executing and at what time. I believe there is a log for my sudo crontab -e jobs, but where?
I searched google and found recommendations to look in /var/log (...
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5
answers
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Where are the Apache and PHP log files?
I've installed Apache, PHP, and MySQL on Ubuntu 10.10 desktop edition, and it's working fine.
Except I have no clue where to look for Apache or PHP log files.
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How to see Login history?
Is it possible to see the login history, i mean to see if someone has used the computer in my absence and when he used it .
if it is possible, where can i get the log ?
if not, is there a program that ...
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11
answers
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How can I tell what date Ubuntu was installed?
is there a command which will output the date that ubuntu (or any distribution) was installed?
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3
answers
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How do I keep track of failed SSH log-in attempts?
I'd like to see if somebody has been trying to log-in by brute-force into my Ubuntu 12.04 server over SSH. How can I see if such activities have been taking place?
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6
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Where are the OpenVPN connection logs and configuration files?
I have problem connecting to OpenVPN server. Where are OpenVPN log files and how do I find the connection details?
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3
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Where are all the major log files located?
So, if there is some problem with my computer, be it hardware or software, what are the major log files and where are they located?
Also, is there a generic location where log files of the other ...
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104
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4
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Where is "journalctl" data stored?
When I issue journalctl I get a massive log of all system services, but where is all this information stored?
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5
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How to see log to find a boot problem
I want to find the cause of a boot problem I have tried
ls -ltr /var/log from antony@antony which gives me login incorrect
can someone tell me what command to use to see what has upset the boot ...
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votes
5
answers
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Where can I find the iptables log file, and how can I change its location?
I have this rule in my iptables:
iptables -A INPUT -s 192.168.11.0/24 -j LOG
My question is:
Where is the iptables log file, and how can I change that?
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votes
2
answers
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Where is /var/log/messages?
Just installed natty, and cannot find /var/log/messages. Also, /var/log/daemon.log is missing. What happened? Why are they no longer present? And where I can find the same log information?
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Very large log files, what should I do?
(This question deals with a similar issue, but it talks about a rotated log file.)
Today I got a system message regarding very low /var space.
As usual I executed the commands in the line of sudo ...
- 3,153
63
votes
4
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How do I log all input and output in a terminal session?
How do I keep logs of all the work done via terminal? For example, I want a record of all the work done on database via terminal.
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5
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Where is log file from rc.local?
I have some commands to in my rc.local. I know that they are failing. How can I get log file with messages produced by executing rc.local? Where is it located?
I have checked the /var/log/boot.log. I ...
- 1,517
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3
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How do I disable messages or logging from printing on the console/virtual terminals?
My wireless driver is noisy. It prints out messages to the console every 10-30 seconds. So, if I'm working on VT1 or something, I get messages scrolling by all the time. Is there a way to shut this ...
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Ubuntu freezes. Which logs can I check out?
So my computer has lately started freezing completely when I run some programs that, in the past, would work great.
What I am unsure about however, is what logs that are available to me that could ...
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2
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Where are network manager logs? (16.04)
I have new Ubuntu and I want to debug some errors in network settings.
I cannot find log for NetworkManager.
/var/log/syslog and /var/log/daemon.log - what people recommend on this stack exchange in ...
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46
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4
answers
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How can I track the cause of random reboots?
A Thinkpad X220 (Core-i5, SandyBridge, Intel GMA) running Precise 64-bit has rebooted hard twice in the last four days. I was doing nothing more than writing an email. No warning. It just went black, ...
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45
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5
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Can I delete /var/log files due to low root space?
Just had the message:
Low disk space.. 2 GB left
Judging by a posted message on ubuntu.org forums, I found that I have a .log file in /var/log at 22 GB in size! My root is an 82 GB partition and ...
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44
votes
8
answers
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Where is the VLC logfile for errors?
I tried to open a blu ray with VLC, but I got this error message:
VLC is unable to open the MRL 'bluray:///dev/sr0'. Check the log for details.
For further information I have to read a log from ...
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43
votes
7
answers
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GUI for watching logs (tail and grep)
Could you recommend a GUI application with powerful log watching capabilities?
Generally it would work as tail -f in GUI, but on top of that following features would be very useful:
filtering out ...
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42
votes
2
answers
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Where is Xserver log file located?
My Ubuntu 10.10 sometimes totally freezes. I suppose that it is somehow related to my graphic card and would like to check Xserver log. Where is this file located ?
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[Firmware Bug]: TSC_DEADLINE disabled due to Errata - what should I do about this?
I saw several bugs and error messages when I was looking by chance into the tool called "logs".
Being a newbie in Ubuntu I have no idea how to deal with these bugs, where to report them or how to fix ...
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4
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Where are kernel panic logs?
I've got problem with Handbrake/ffmpeg. After ~5 minutes transcoding, the computer locks up. I'm fairly sure it's a kernel panic because caps-lock starts flashing.
There are a few logical questions ...
Oli♦
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4
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Where are the NetworkManager logs?
A previous poster on the regular forums ( http://ubuntuforums.org/showthread.php?t=843991 ) said /var/log/daemon.log, but I don't seem to have such a file. Do I need to enable logging?
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2
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Why I'm getting this [UFW BLOCK] in my syslogs?
I wonder why I get this error on my syslogs:
[7732763.396193] [UFW BLOCK] IN=eth0 OUT= MAC=02:8b:1a:75:d5:7b:02:8b:1a:40:00:03:08:00 SRC=x.x.x.x DST=x.x.x.x LEN=40 TOS=0x00 PREC=0x00 TTL=64 ID=53703 ...
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34
votes
2
answers
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Where is the shutdown log?
I am trying to debug a hang during shutdown and I don't find where the messages that I see during shutdown are being stored. They aren't in /var/log/syslog
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5
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How do I check if last shutdown was clean?
How can tell that my last shutdown was properly done in Ubuntu 11.10 or if the machine was powered off before shutting down the OS?
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Displaying a "scrolling" log file
Via command line, I have a log file I'd like to keep track of.
What I want is to have, basically, a tail that refreshes when the log is updated making the text scroll upwards as new lines are ...
- 652
30
votes
3
answers
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No more boot logging since 16.04?
I noticed that my /var/log/boot.log file has date 2016-04-22, last time I booted in 15.10. Where are Xenial boot.log files located?
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Where does Ubuntu 14.04 log SSH access attempts? [duplicate]
Trying to find out why fail2ban is not working.
Where does Ubuntu 14.04 log SSH access attempts?
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Can I look at the upgrade log after a distribution upgrade?
I've upgraded to Ubuntu 12.04 and did it offline using the alternative CD. I didn't look at the "packages to remove" section before clicking next - I've done Ubuntu upgrades many times and assumed it ...
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What can I do to find the crash reason [duplicate]
I'm running Ubuntu 18.04, it crashes about once a week. Sometimes while watching video sometime or just web-browsing. I check the system log and kernel log they don't have any strange output at the ...
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votes
5
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Redirect UFW logs to own file?
Is there a way I can easily redirect the entries for UFW to their own log file at /var/log/ufw instead of filling up /var/log/syslog as it's becoming tricky to find solutions to problems with all this ...
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Understanding UFW log
What does this UFW log mean? Has already asked a similar question, but I want to know explicitly what each line of the UFW log means
Feb 6 16:27:08 jonasgroenbek kernel: [71910.873115]
[UFW BLOCK] ...
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No logs are written to /var/log
I have a problem, that no logs are written to /var/log.
-rw-r----- 1 syslog adm 6.4M May 21 2014 syslog
-rw-r----- 1 syslog adm 5.7M May 21 2014 daemon.log
-rw-r----- 1 syslog adm 494K May 21 ...
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7
answers
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var/log/syslog growing indefinitely in size
The disk that contains Ubuntu on my computer is 115GB in size.
When the disk was 114.7GBfull.
I started deleting some files here and there to free up around 5GB.
But I noticed the disk was 114GB ...
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25
votes
1
answer
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Why is my virtual machine inaccessible?
I want to start my virtual machine but in VirtualBox Manager, it says it's inaccessible and that I should be inspecting the error log which says:
Document is empty.
Location: '/home/ron/VirtualBox ...
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votes
6
answers
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When an application crash without output an error, is there a log that i can check?
Sometimes it happen that some application crash without give no output error (conky in my case, probably is one of my configuration that is incorrect).
Is there somewhere a error log that I can check ...
- 1,970
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How to truncate all logfiles?
can anybody give me a solution to truncate all logfile in /var/log/ directory?
and a question just for knowledge, is it a good idea or not?
#!/bin/bash
LOGDIR="/var/log"
for logfile in $(ls $LOGDIR/*...
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Does Ubuntu log when USB devices are connected?
When I connect a USB drive to an Ubuntu OS, would there be a text file which contains details of that connection and if so, where is that file located ? What is the name of that file?
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Exim PanicLog has Non-Zero Size...?
I'm getting the following error from my Ubuntu server:
exim paniclog /var/log/exim4/paniclog on (my server FQDN) has non-zero size, mail system might be broken.
I found a solution on the web here. ...
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2
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How to view results of last clamscan scan?
I scanned pen drive using clamscan and I closed the terminal after scanning without reading the result.
Now one of my folders on the pen drive is missing. I wanted to know if clamav deleted it.
So ...
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3
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How can I make a detailed report of ClamAv scan results (location of infected files)?
I'm scanning with ClamAv and I got the following summary:
----------- SCAN SUMMARY -----------
Known viruses: 4724261
Engine version: 0.99
Scanned directories: 128878
Scanned files: 791920
Infected ...
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What is the "canary thread" and why is it starving?
The following occasionally appears in /var/log/syslog:
rtkit-daemon[1145]: The canary thread is apparently starving. Taking action.
rtkit-daemon[1145]: Demoting known real-time threads.
rtkit-daemon[...
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Filesystem filling up due to large uvcydnctrl-udev.log file
Now my installation of Ubuntu costs me more than 100 GB of the hard drive space. And whenever I try fslint and fdupes, they say Permission denied to delete the duplicates. Please help me guys.
...
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Filter any system log file by date or date range
What I want to achieve:
I'd like to filter a system log file by date, i.e. when I do:
$ cat /var/log/syslog | grep -i "error\|warn\|kernel"
it prints lines like these for the three last days let ...
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systemd on 15.04 won't log stdout of unit
I'm currently trying to make a systemd unit as a web server. Currently, my foo.service file looks as follows:
[Unit]
Description=The Foo Web Server
[Service]
Type=simple
ExecStart=/opt/foo/.cabal-...
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6
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How to Solve Increasing Size of MySQL Binlog Files Problem?
MySQL Binlog files count is increasing day by day and their size is increasing in gigabytes. How can I stop the increasing size of binlog files? They are fulling the disc space.
19
votes
3
answers
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How can I know when my screen was locked last time?
Exist a log where I can look for that information? I want to know last days when my PC automatically locked the screen because was idle.
user58366