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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Does the auth.log changes when I update?

As always, I have been using the Software Updater to search and install my updates. I know that the syslog and the dpkg.log changes when I update my system, but the auth.log also changes? Since it ...
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Redirecting iptables log works but logging continues in kern.log file too

Yes, I have gone through similar questions asked. My problem is that I am able to log the iptables log in another file. However, the log entries also get logged in kern.log file. I have the following ...
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Eclipse Juno crashes frequently, no logs

I downloaded Eclipse Juno CDT and am using it with Kubuntu 14.04 . Unfortunately, it keeps crashing on every other action I take... for example, if I try to load the Editor options - crash. I can't ...
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8 views

Stream has outstanding operation - error when opening Sytem Logs

Every time that I turn on the computer, I always start the System Log, where I can have easy access to auth.log, syslog, bash_history, etc. But, yesterday, every time that I open it, There is an ...
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1answer
13 views

Is it possible to find all the config file replacements done during apt-get?

When you perform a do-release-upgrade, or just a dist-upgrade, if a package contains a new config file for a program, you get prompted what to do. Now, you can pick whether you want to accept ...
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12 views

Massive log file and 100% CPU usage for 'upstart'

I have a fresh install of Ubuntu 14.10, and I installed some programs like MATLAB, Chromium, Evolution and other fairly harmless stuff. However, I have run into some trouble recently. The file ...
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1answer
20 views

log cron job in real time

I have a Python process which I run nightly via a crontab. It scrapes an API which I have limited access to so regularly has to stop and wait for an hour. By my estimates the job should take 5-6 ...
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1answer
44 views

How to create logfile for a bash script?

I've written a bash script that runs multiple instances of a program and would like to write the entire output of the script to a logfile. I tried #!/bin/bash touch <.../somewhere/logfile.log> ...
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15 views

Identifying syslog files, also does auth.log mirror what is in /vars/syslog?

I am writing a auth log parser as a means to contribute to a tool and to learn linux logging better. I have been reading up on syslog and log facilities and was wondering if what is in auth.log will ...
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1answer
25 views

How do you get those nifty transparent log displays?

So I've seen plenty of displays of transparent logs or running logs or htop instances on what appear to be fixed areas of a desktop. I think this is something like root-tail but I can't get root-tail ...
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16 views

How do I get a log of the start up error messages?

After encountering several "file is not writeable" errors out of the blue and rebooting, the system doesn't seem to be able to see the linux partition and it scrolls over the original error messages ...
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1answer
52 views

Computer automatically switches on in the morning

I have a small but annoying problem. For a while my computer has been switching on randomly in the morning around 3:45 AM or so. I have no idea how to fix this, i have checked a lot in the system ...
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15 views

How to check service logs

I would like to know when/who start/stop a service in linux? Is there any log to show those information?
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16 views

Why did my PC shut off last nght and how do I find out if it was a sensor alarm?

I tried following all of the answers to Which log will tell me why my computer shut down? but all I did was find a messages.1 file which had old messages (3 month old). Other than I found the logs of ...
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25 views

my disk is full every hours because of /var/log/ [duplicate]

I'm having a hard time with Ubuntu. I don't know how but it keeps generating log after log and it ends up filling my disk; to keep working I erase /var/log (I know I shouldn't do it) and reboot the ...
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20 views

Is there any way to recover email that PHP tried to send when sendmail wasn't installed?

We recently shifted a web app to a new server and didn't realise for a few days that sendmail wasn't installed. Is there any way to recover the email, or some of the header details, of emails that ...
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30 views

How can I find out which application/service is filling up /var/log so MASSIVELY?

My laptop disk showed me that I had '0' bytes of free space left. I was in shock. I thought computers have started lying (that was the extent of my disbelief since there was absolutely nothing that I ...
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3answers
45 views

How to dump user's environment into a file?

I want to dump all user's environment into 'env.log'. Please tell me the command to do this.
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93 views

CRON doesn't run tasks because “/bin/bash: /var/log/cron.log: Permission denied”

I have the following CRON task: MAILTO="my@email.com" # Begin Whenever generated tasks for: projectname 30 4 * * * /bin/bash -l -c 'cd /home/deployer/apps/project_production/releases/20150305135322 ...
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26 views

How force Logcheck to report fail2ban bans?

I'm using Logcheck to take care of my logfiles and suspicous activites. I also installed fail2ban and get sometimes... I would like to be informed then fail2ban blocks an ip.. but logcheck is not ...
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57 views

Simple proxy server just to log visited sites

What simple proxy server could you recommend to log visited sites from different users and from different browsers at single Ubuntu host? I want to get log file like this: user1 ...
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81 views

minimal data showing in auth.log

I have locked my server down and to help troubleshoot any holes, I look in the logs, especially auth.log. In the logs, it shows that there are attempts to log in but no data shows. I am not able to ...
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22 views

get kernel panic log

My system keeps hanging every several hours. I think the problem is somehow connected with network, because plugging ethernet cable eliminates the problem (even if ethernet is used locally only). If I ...
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2answers
55 views

Should /var/log be on an hdd partition when / is on an ssd?

I keep reading that /var/log should not be on an SSD as it gets written to all the time. I'm installing Ubuntu and SSD and am wondering if I really need an extra partition for this folder on my HDD, ...
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Ubuntu 14.04 - logrotate does not rotate /var/log/* (rsyslog config)

I have a bunch of Ubuntu 14.04 servers I manage where logrotate is not rotating anything under /var/log/. I'm going to assume its an issue with the /etc/logrotate.d/rsyslog as I see other entries in ...
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2answers
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How can I access network statistics (like bandwith/data usage) in logs for the past 2 weeks?

I want to extract network statistics of past two weeks. It should contain information like the uploads and downloads, also the network speed (bandwith ) I received. I tried system monitor, but ...
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Logging snmpbulkwalk with net-snmp

I am trying to log the command for snmpbulkwalk using the command snmpbulkwalk -Lf /etc/snmp/snmplog -v 2c -c public 192.168.2.4 1.3.6.1.4.9 I can see that the file /etc/snmp/snmplog is being ...
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Is there a log for the HUD?

I changed the Icon for one application in the ~.desktop file and it works properly. The new icon appears in both the dash and the launcher. In the HUD though the Icon appears if I don't write ...
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1answer
133 views

Check which SSH key was used to login

So stupidly enough in our development team every individual SSH Key is used to access the root user directly. When Checking the auth.log I can find this Dec 18 09:45:04 webserver sshd[12377]: ...
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1answer
606 views

“mei_me 0000:00:16.0: no destination client found 0x00002285” spamming logfile, fix?

ubuntu 14.04 desktop install. Have fully up to date security and regular updates. syslog file gets spammed with thousands of this entry: kernel: [15863.834330] mei_me 0000:00:16.0: no destination ...
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57 views

munin send mail about permission denied to munin-update.log

I have install munin, but CRON send me mail about an error: Can't open /var/log/munin/munin-update.log (Permission denied) at /usr/share/perl5/Log/Log4perl/Appender/File.pm line 103. but the ...
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1answer
107 views

Sending different kill signals to init - how to log

I have to write a C program to check how init reacts to different kill signals, however I am not sure how to log it - for example signal number 14 crashes the ubuntu, then some higher one turns it ...
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1answer
65 views

Avg on Ubuntu access log file

I'm using avg 2013 on my 12.04 LTS.I want to access the log file where avg stores the infections. I'm having tried to open the avgevtlog file in this directory:/opt/avg/av/bin/ but i have no ...
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31 views

Monitor print jobs/pages printed per IP address

We use an honor system for printed pages, but since someone's been misusing our trust I would like to monitor/log the amount of pages printed per IP address. Is there any software (or script) that can ...
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24 views

A question about logs (security)

I was taking a look on this page, about knowing if I'm being hacked, but I got a question. It says that: If large chunks of time (more than 5 minutes) are unaccounted for in a log file while the ...
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1answer
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Disable all Logs

I use my Ubuntu vps with openvpn as a surf proxy. For security and privacy reasons i want to disable all logs on the server. So no IPs are getting loged in any file. I already disabled rsyslog ...
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Where can i find the change log of Ubuntu touch (devel-proposed)? [duplicate]

I'm currently using Ubuntu touch on my nexus 5. Where may I find the change log of every update I get?
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580 views

Ubuntu crash - how to read log files

A few days ago the laptop decided to close without no relevant reason. From this day on, it randomly crashes without explanation. This is what I (correctly?) filtered from the log files on the last ...
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1answer
36 views

Why am I getting this annoying log messages.CRON[17405]: (root) CMD every minute

I have configured rsyslog.conf file to store log messages to mysql but I am getting some annoying log message in my MySql table. which looks like this. Nov 3 14:48:01 username CRON[17405]: (root) ...
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32 views

/var/log uses 115G [duplicate]

I own a vServer with 120G disk-space. Today I discovered that I cant upload any files with ftp and my MySQL-Server stopped working. I found out that suddenly my disk space is full. After some research ...
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160 views

AMD Caicos XTX/Radeon HD 8490 filling log

dmesg and syslog are overwhelmed with the following errors multiple times per second. For the most part, things operate well enough, but I sometimes have some performance issues so I'm trying to track ...
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1answer
270 views

Need help interpreting log file and installing missing AMD driver dependencies

I'm having trouble installing the AMD Catalyst 14.6 Beta Driver for Linux on my Ubuntu Gnome 14.04. I know this might seem trivial but I need help interpreting and understanding the names and ...
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28 views

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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1answer
55 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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25 views

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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117 views

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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35 views

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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82 views

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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102 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 ...