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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How to: autocreation of system performance / health log?

I want my system to create file with a history entries filled by: exact time CPU, GPU, HDD temperatures network total up/down bytes RAM and swap % usage Less important: CPU, GPU, HDD loads ...
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26 views

Log proccesses activities for later analysis

I'm having a problem with a Ubuntu 14.04.1 LTS machine that occasionally freezes up for no reason that I can logically predict. Once it happens the HDD usage seems quite high for no reason ...
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long term log of all traffic

I have connected my ubuntu 14.04 computer to a "mirrored" port on my firewall, so that I can see all traffic on the network. I use this today to see who uses our bandwidth with NTOPNG. but since I ...
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ConsoleKit history log file is suddenly huge

I've had a server running (accessible on the web) for a year or so. There's a series of compressed history files in /var/log/ConsoleKit that are a few kilobytes each. However. October's is 1.2 GB, ...
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Can't log into my computer after video cart update

This morning I tried to update my video card, my computer has 8gb of ram, i7-2600k, and a gtx750ti. I am rather new to ubuntu, I can't log in using Ctrl alt f1 sadly, I just get a log in error. All I ...
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Whats does this Sever error mean?

> org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'videoMobileController': Invocation of init > method failed; nested exception is > ...
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Can a detached hdd reveal system information of machine from which the hard disk is detached

Can an internal hdd (on which Ubuntu or any other OS is installed) that i detached from the PC or laptop (keeping the OS as it is) and connected to some other PC or machine reveal the info of the PC ...
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17 views

How do I change my cron loglevel to 7 from default value 1?

> man cron, tells me that the default log level for cron is 1; i.e. cron "will log the start of all cron jobs." I want to set that to 7, so I checked in all the wrong places, starting with the file ...
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14.04 Kernel Panic

on two of my VMs I get every day kernel panics, but I don´t have logfiles for them. So I tried this to reconfigure rsyslog and setup linux-crashdump but: My syslog logfiles has no entries for the ...
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Where did /var/log/user.log go?

Since 11.10 the user.log file has been removed. Where can I find messages that used to go there in the past? I am now using 14.04.
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45 views

How can I see tty during shutdown?

The shutdown of my ubuntu 12.04 never terminates. (It's been running for one hour, showing the ubuntu word with the rotating dots below: it's still alive.) Right after I initiate the shutdown, the ...
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43 views

Ubutnu virtualhost Awstats setup

I have many virtual host in apache like /etc/apache2/sites-available/ example01.com.conf example02.com.conf example03.com.conf etc.. All above listed virtual hosts have there own apache access.log ...
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How can I log per-process resource usage?

I am encountering a reproducible system slowdown when I perform a given action on the desktop. I have observed some odd behaviour running top and iotop in separate TTYs. How can I log resource usage ...
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230 views

init.d script doesn't log to /var/log/boot.log

The script below is working fine at system startup. However, its log messages don't show in /var/log/boot.log, when the system boots. I compared it with other init.d scripts and couldn't reach any ...
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105 views

can't access kippo-graph

I have made an instance in AWS with Ubuntu Server 14.04/ 64bit as the OS I installed Kippo and kippo-graph following this tutorial http://bruteforce.gr/installing-kippo-ssh-honeypot-on-ubuntu.html ...
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49 views

Change time format in log file

I have squid log file in follow format: 31/Jul/2014:13:44:52 +0400.701 0 172.16.204.59 TCP_DENIED/407 5232 GET http://vec01.maps.yandex.net/tiles? - NONE/- text/html but log analyzer need time ...
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1answer
27 views

I have Privacy: Record activity ON but how to view log and all the stuff? [duplicate]

Where can I find the recorded data and screen snaps and etc things ? I had tried to find them within : ~/.local/share/zeitgeist directory but there are the following files available and i don't ...
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21 views

How to get exit status of anacron jobs to catch errors?

It is easy to find failed cron jobs by setting log_level but how to do it with anacron?
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361 views

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 ...
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31 views

How to record chrome cpu and memory usage

Is it possible to record google-chromes cpu and ram usage?? with terminal or other software that will do the same task ?? Thank you in advance
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165 views

where can I find tftp-hpa server's log file?

I am using tftp-hpa in ubuntu 12.04, where can I see the verbose log of the server? I checked on syslog. there is no log from tftp-hpa server.
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33 views

How can I find the reason ubuntu crashed [duplicate]

As the title, which log file i should pay attention? I don't use X (use ubuntu in text mode), I have python program which use much memmory . When the system break. The ssh can't connnect, keyboard and ...
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how to track a crash when changing from X :1 to X :0?

I need to track on 14.04 a crash that often happens here: I open a new X at :1 (that sometimes goes to ctrl+alt+f8 others to f9). But when I try to go back to X :0 with ctrl+alt+f7, it crashes ...
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Minecraft Bukkit server spams logfile - Ubuntu 12.04

I have a virtual server (Ubuntu 12.04) and a serious problem with Minecraft/Bukkit. I've installed a fresh bukkit 1.6.4 on my virtual server and made some upstart script for it. Here is the ...
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Apache2 and PHP error logging

I've been running a local apache2 on a Ubuntu 12.02 LTS with the latest PHP version installed. I do need to debug some WordPress code to find out why certain values are not set in the database. I ...
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247 views

bash script to back up file [closed]

I have a few files to be backed up. I need a script to check line number of a file and if it exceeds, say 8000 lines, it will simply zip it and name it with date prefix format. I need your help.
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Where does xhost (or related X11 services) store access denied logs

Every time I setup a new computer for remote access I have problems getting it added to the xhost access list. I eventually get each system added. It would save a lot of time if I could locate the ...
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20 views

Getting the names of users on apt-get logs

I am administering a Ubuntu server (Trusty) where several users have been given permission to run apt-get, but only two administrators have full sudo permission. I want to keep track of who installs ...
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23 views

How do I find logs that report the cause of a system crash?

My computer with Trusty is often rebooting, apparently in a random way. I have looked in system register but there are so many logs that is quite difficult to find the ones which only report the error ...
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Is there a log for connected peripherals? [duplicate]

I need a log of all devices I connected to my Ubuntu - even if they aren't connected anymore. So a log of all connected peripherals in Ubuntus lifetime would be perfect. Does that exist?
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9 views

Log or View Log of all USB operations

If I want to see the log of all the USB devices that were connected to my machine is this feature already built in, if not is there a way to do so. Furthermore, what if alongside I also want to know ...
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1answer
53 views

How can I identify the program that has written information to a log file?

I recently got a message that something had failed to sudo on my Ubuntu laptop. At the time, I don't believe I was running anything that would need sudo. The messages that appeared in ...
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152 views

Is there a “Settings history”, or a log of changes in configuration?

P.S. I have just found Is it possible to monitor dconf for changes? It, together with the answer by Volker Siegel, answers my question. A note for Xubuntu users: some settings are not in dconf, but in ...
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21 views

How can I log acpi temperatures?

I'm trying to debug why my computer randomly shuts down sometimes, and to rule out temperature issues (since I don't think that's the case) I would like to log the output of acpi -t somewhere so when ...
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New to webservers

My boss asked me to take a look at the web server if I could and see what was causing some issues. It looks like I have tonnes of logs and I am not sure what to make of them. Any help that would be ...
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Where are wireless or internet connection logs? [duplicate]

I want to go into a log file and see what happens when my Wi-fi drops, then take it elsewhere? Where can I find this?
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126 views

Using Port 587 for Secure Submission

Testing from swaks, mail is delayed indefinitely. I believe that the local mail server is configured correctly, as per the ehlo responses: thufir@dur:~$ thufir@dur:~$ telnet localhost 25 Trying ...
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206 views

Can't log in Ubuntu 14.04 [duplicate]

I have a problem that started just yesterday after using upgrade version of Ubuntu 14.04 since its release. Namely, all of a sudden, Ubuntu won't accept my password. I changed it with passwd user, ...
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49 views

how to keep more than 2 log files?

In search of occasional boot problems, I would like to keep in the log files more than 2 ones that are kept now. For example, in /var/log, I have Xorg.0.log and Xorg.0.log.old that are created by two ...
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How do I tell why it takes so long to boot up/login? [duplicate]

I'm running ubuntu 14.04 on a pretty new laptop, but it takes longer than I think it should (since the laptop is quite new) to start up and log in for the first time after booting. If I log out and ...
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117 views

Cron doesn't execute one of the scheduled jobs

I'm using a lubuntu desktop, distribution Ubuntu 13.10, i686. This is my problem: in the job list scheduled by cron a job hasn't effect, but in /var/log/syslog its execution is traced. This is the ...
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36 views

Change location of log file for “update-alternatives”

I am currently managing my logging system but while setting all log location a problem occured: I want to change the location of the file /var/log/alternatives.log and I have done some research. This ...
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30 views

Config --no-log for an init deamon job

I have a proccess configured under /etc/init and it runs by the init deamon, and want this proccess to stop sending logs to the /var/log/upstart dir. I read this document: ...
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36 views

Failure during boot with service failures (slowing down PC)

While Ubuntu is starting and showing it's boot screen an error occurs for several times saying: failed to execute 'lib/udev/socket:4/org/freedesktop/hal/udev_event' ...
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36 views

KDE, how to have “tail -f” constantly on a dedicated panel?

Plasma has this nice plasmoid called File Watcher. At work I have 2 monitors. I would like to put this plasmoid on an empty panel on the second monitor. So that tail -f /var/log/apache2/error.log ...
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274 views

Rotating a log file in my home directory on Ubuntu Server 14.04 LTS

I have a log file ircd.log in /home/irc. I want to rotate it daily at 00:00 and keep 7 days. I want the rotated log files to be saved as ircd.log.YYYYMMDD for example ircd.log.20140505. Can someone ...
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66 views

Where can I see the text that is displayed during boot?

During boot, there are three stages : Before grub, I have two lines of text flashing telling me that something is not found Then there is the grub menu Then there is the normal boot process On ...
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Tiger: `rtm` is listening on socket XXXX

On my Ubuntu serve 12.04 LTS, Tiger is reporting a lot of stuffs like this: OLD: --WARN-- [lin002i] The process `rtm' is listening on socket 60404 (UDP) on every interface. NEW: --WARN-- [lin002i] ...
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Logwatch: Illegal users & font color

I am using logwatch on my ubuntu 12.04 LTS server. I get the results by e-mail. There are two aspects I would like to customize, but I can't find how: Under SSHD Section, there is: Illegal users ...
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84 views

Screen flashing black just after booting

I've just been noticing, after updating to Ubuntu 14.04 that my screen flashes black at the log in screen. only for a quick second - but kinda weird seeing as it hadn't happened before. It only ever ...