A log is a record of events during a particular time range. Questions about interpreting logs on Ubuntu or controlling logging.

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ACPI spamming: 1 arguments were passed to a non-method ACPI object (RegionField)

I have installed Ubuntu 16.04 Desktop on my Thinkpad Yoga 12 laptop ( http://shop.lenovo.com/us/en/laptops/thinkpad/yoga-series/yoga-12/#tab-tech_specs ), using UEFI mode. My logs are getting spammed ...
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Permission denied due to file access restriction logs

When a user tries to perform an operation on a file not allowed due to the file's permissions, is this event logged somewhere in Ubuntu?
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Error messages in log about com.canonical.Unity.Scope.Home

I see the following messages in my log-files: Jul 20 09:52:29 SysH-PC3 com.canonical.Unity.Scope.Home[1913]: (unity-scope-home:12285): libunity-protocol-private-WARNING **: protocol-scope-discovery....
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What can I do regarding this errors found in boot.log?

Timed out waiting for device dev-disk-by\x2duuid-896874fe\x2d2dd8\x2d405e\x2d97c3\x2dc72b0db1b606.device. [DEPEND] Dependency failed for Cryptography Setup for cryptswap1. [DEPEND] Dependency failed ...
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How to access “Previous Reports” on Ubuntu GNOME?

In Ubuntu (Unity) in the unity-control-center one can access one's history of reports by going to Security & Privacy > Diagnostics > Show Previous Reports. But there seems to be no such ...
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Difference between “install” and “installed” in dpkg.log [migrated]

Some recently installed packages appear like so: [date] [time] install [package name] [date] [time] installed [package name] but some packages (e.g. man-db which I haven't manually installed) ...
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Problems with distribution upgrade

I have been trying to upgrade from Ubuntu 14.04 to Ubuntu 16.04 LTS but when I run sudo do-release-upgrade, I get the following error: Could not calculate the upgrade An unresolvable problem ...
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1answer
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Accidentally deleted /var/log/syslog

I accidentally deleted /var/log/syslog and now I can't get rsyslog working. I was googling, I tried everything I found. To be precise: I created syslog with touch. Then I set chmod and chown ...
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2answers
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Are log files written to when a buffer fills or in 'realtime'?

I have a script running which pipes its output through another script; that wrapper script adds a timestamp to each line of the log. However the data is being written to the log file in chunks of ...
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1answer
35 views

Redirect iptables logging to another logfile

I have followed the recipe by @Gilles in this answer. I succeeded, but the problem is that the iptables logging now goes into 3 log files, syslog, kern.log and iptables.log. Ideally, I want the ...
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How to stop logging user login history?

I have noticed a History button in System Settings > User Accounts on my newly installed Ubuntu 15.10 system. It brings up a log of recent login sessions for the selected user. How can I disable ...
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what does this mean for a module to have a bad taint?

When looking at the syslog (dmesg), I get several of: <module name>: module has bad taint, not creating trace events What does this mean ?
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Where Ubuntu Gnome Looking Glass / extensions logs are stored?

I've started to playing around with extensions for ubuntu gnome, gnome-shell version 3.18.5. During the development I've encountered a problem finding logs from my extension or even the one used ...
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Massive log files on Ubuntu 16.04

I recently installed Ubuntu 16.04. For some reason I have massive log files. For example: kern.log is 10.5 GB big and syslog is 152 MB. I already tried rotating them, but I wanna know what's making ...
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1answer
49 views

How to see information of a WiFi hotspot I once tried to connect to?

I would like to see some information, including MAC address, of a WiFi hotspot that I tried to connect to and failed in the past. I can not try connecting to it again any more, because it is not a ...
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bash.bashrc damaged..ubuntu log in loop and no interactive programs working from terminal

I have accidentally deleted the content of /etc/bash.bashrc and now I cannot log in as it gives me a loop and I cannot run any interactive programs from the terminal. When I try, I get this error: ...
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1answer
105 views

How to include millisecond in syslogs?

I have configured rsyslog.conf file in /etc to include my own logs as syslogs in a file at /var/logs. But after opening the file I got this: Jun 5 10:09:09 lab-Altos-G330-Mk2 slog[19689]: Hello1 Jun ...
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2answers
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Is there software which time- tracks window & application usage?

Is there a software which keeps time of my activities and gives a report? Based on focused window and window title. Report would just show time spent for specific window and its title like: ...
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Understanding the reason behind a freeze using system logs to file bug

My Ubuntu laptop just froze a few minutes ago (like it is frequently doing) making me reboot it using the hardware forced way. I would like to know the cause behind it so that if necessary I can file ...
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Graylog2 Windows logging from a current syslog-ng loghost aggregator

So our environment currently has a log host aggregator sending and receiving logs to 2 hosts (both linux and windows). I just introduced graylog to our environment and it doesn't appear to be ...
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1answer
24 views

Logcheck not sending email

I just installed logcheck, modified its config to my email address, but when i prompt a test run i dont get the email. If i redirect the output to STDOUT i get the correct infos. I read somewhere ...
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1answer
70 views

Apache2 failed to start on Ubuntu 14.04, log file is empty

I just try to install apache2 on my 14.04 Ubuntu server but I get an error: * Starting web server apache2 (98)Address already in ...
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1answer
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logkeys log file has wiered output

I have a Ubuntu 15.10 install and recently installed logkeys. and I followed up with the log file with after installation and creating the log file. tail --follow test.log it generates weired ...
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1answer
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How can I log all notify-send actions?

I keep getting very strange notifications which go away before I can read them, they are long, and appear at random times, the most recently one came up was during a kernel upgrade, it had a strange ...
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22 views

Is there a file with system log?

In Ubuntu there's a program called System log, with log of system and all that you do with Ubuntu. I would ask if would be possible create a file.txt that refresh automatically with log from 'System ...
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32 views

How do I debug openstack-install command?

Is there a debug command or log that can be viewed to look into sudo openstack-install error
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620 views

Is there a log of all activity I could open in terminal?

I'd like to have a terminal opened and study the processes and everything happening in a regular use of Ubuntu. What commands and files can I use to see the logs in real-time? Thanks.
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Troubleshooting logkeys keylogger - Logkeys dumping wrong character in the log file

This is what I am doing after installing logkeys. sudo logkeys -s sudo nano /var/log/logkeys.log
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1answer
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Troubleshooting Logkeys Keylogger Ubuntu 14.04 - Empty log file

This is what I am doing. sudo gedit /var/log/logkeys.log Then I would look at my log file to see if it worked and saw that it was blank! Is there any way that I can fix this so I can be able to ...
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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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Get unique lines from log using grep and tail

I have the following log file. I want to extract the last 10 unique entries from this file. Is it possible to do with grep and tail? 2016-04-18 10:13:11,925 (glastopf.glastopf) 115.239.248.245 ...
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Can I deiconify a console on a certain output?

I would like to have a terminal window which deiconifies as soon as it shows an output. With it I would monitor log messages on a terminal -- say with a tail -f. The terminal would loom in ...
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54 views

Where can I find my call history on Ubuntu Phone?

This seems oddly missing on my nexus 4. I received a phone call the other day, and I forgot to add her as a contact. Now I am searching for that phone call, and I can't find a log readily accessible ...
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40 views

How to keep record of Logins and Actions

I've just created a Windows Server 2012 Domain and I inserted an ubuntu 14.04LTS laptop in the domain, which is responsible for file exchanging with a USB between the domain users. How can I keep a ...
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Logging Bad Sectors

Is there a program that will maintain a log of growing bad sectors? I want to measure the regression of my hard drive automatically as opposed to manually taking screenshots. UPDATE: After running ...
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Scrambled screen everytime trying to execute a program

I am new to ubuntu and just installed 14.04 32 bit on an old machine for testing. It is a lenovo desktop which the spec is as following. After the installation, the screen will scramble everytime I ...
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How to restrict root's installation capabilities

I've found out some time ago that users who install software via sudo apt-get install ... or any of the GUI tools (Update Manager or Software Center) show up in the /var/log/auth.log which makes it a ...
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Ubuntu server stuck on splash screen?

After restart my ubuntu server gets stuck to splash screen? All programs start up i can login with alt + f2 and open "log" "console" (ssh and samba server works) whole thing ends in stopping cpu ...
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1answer
32 views

how to trace errors and crashes in Ubuntu itself?

I'm new in Linux, My Ubuntu has started crashing for some days randomly and closing everything, going back to login screen!! Is this the same as when windows hangs and you kill a program? (but ...
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Did my ubuntu shutdown properly last time?

When I came back to my laptop it was shut down. Last time it suddenly turned off. This time as I was away I do not know what has happened. I even cannot remember if I shut it down or not. I read the ...
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40 views

How to create a special log for my ntpdate?

ntpdate -s 0.asia.pool.ntp.org s:Divert logging output from the standard output (default) to the system syslog facility. tail /var/log/syslog The ntpdate log will be seen. I want ...
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How to check logs for all connections Linux made to servers and/or downloads

I downloaded Sophos a few days eariler, but now I'm worried I might've got it from a bad source. Is there a way to check to see where I've got it from without using the download list of Chromium (It ...
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1answer
65 views

How can I build a scrollable, colored syslog viewer with less, ccze, grep?

I'd like to view logfiles with colored output, scrollable and searchable. How do I do that? I tried less /var/log/syslog | ccze | grep error, but it is not scrollable.
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1answer
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Need Help Freeing Disk Space

I need help freeing up diskspace, From Disk Usage Analyzer it says that my Log Files have taken up more than half of the Disk Space. Is there a way to get clear up the Log Files? I've tried to delete ...
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2answers
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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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Troubleshooting Ubuntu via Remote Terminal

In a situation where an unscheduled system reboot occurred on an Ubuntu environment and the only way to access the device is via Remote Terminal. What are some of the things you would ...
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Date and time for log files different to `date`, `timezone` etc

On a Ubuntu 14.04 vps, my timezone is set to UTC/GMT. root@Ubuntu:/# date Fri Mar 11 13:36:56 GMT 2016 root@Ubuntu:/# cat /etc/timezone Europe/London root@Ubuntu:/# ls -l /etc/localtime ...
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Why gnome-session is outputting so many logs?

I found an old bug about this, here. And lazy answer here. But I'm not sure because of this answer. Why its reaching around 30 GBs? Is it necessary or is this bug? I deleted file because it filled ...
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Logs not generated in syslogs

Last night system restated but there are no logs for 14 mins before system went for reboot. But only one thing is there in syslogs. ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ I am using Ubuntu 14.04.
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what did apport send as an error?

This is what I found so far: thufir@mordor:~$ thufir@mordor:~$ cat /var/log/apport.log ERROR: apport (pid 4232) Mon Mar 7 01:21:55 2016: called for pid 4231, signal 11, core limit 0 ERROR: apport (...