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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Is it possible to log all items installed, modified, removed? (Ubuntu Server 14.04.2)

Is it possible to log automatically when things are installed, removed or modified at my Ubuntu server? It would be nice if I can view the log to see what I (as root) did modify, install, remove. ...
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40 views

What do these numbers mean in syslog?

I'm trying to determine why MySQL server process is being killed due to out of memory, so am looking at the sylog. Immediately before the 'out of memory' I see lots of lines with differing numbers but ...
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1answer
20 views

Where does Ubuntu 14.04 log SSH access attempts?

Trying to find out why fail2ban is not working. Where does Ubuntu 14.04 log SSH access attempts?
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1answer
36 views

how to customize logs?

As you know better than me any action in linux store in log files, like /var/log, I was wondering is there anyway to customize the log file in linux, for example in this case I'm the root of my ...
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92 views

How to install and setup graylog-server and graylog-web on Ubuntu from repositroy?

I am trying to setup graylog on Ubuntu 14.04. I tried to find out installation steps on internet I found few links. but their method of installation is manual I mean installation from the source. and ...
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2answers
25 views

Is it possible to make ubuntu logless

Can I disable the logging features for any app running under Ubuntu? I want to make my system totally logless is it possible?
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9 views

Squid3: acl proxy_auth not working in log_access

I'm trying to configure a Squid3 proxy server so that it doesn't log the requests made by authentificated users. I've tried the following config (squid.conf): acl Users proxy_auth REQUIRED log_access ...
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30 views

How to figure out the reason for automatic log-outs on Ubuntu Unity and GNOME 3?

My installation of Ubuntu 15.04 logs-out automatically on both Unity and GNOME 3, it doesn't do it on GNOME Fallback. Is the Xorg 0 log file the place I should go to in order to figure out the reason ...
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1answer
49 views

Linux Crashes every time I word process [closed]

Linux crashes every time I word process. It doesn't matter if its a .doc, .docx or odt file. Doesn't matter if I'm using LibreOffice Writer, AbiWord, or IBM Symphony. It also does it when looking ...
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27 views

How to access user's activity log

How can I get the log that says programs which are opened by user with time stamp . I would like to develop a system to monitor and give suggestions using this user activity log.
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21 views

R/Shiny WebApp logs, running in shell (Ubuntu crontab)

I'm running, using crontab, an R/Shiny WebApp. The crontab expression looks like this: @reboot R -e 'shiny::runApp(...)' | tee /var/log/shiny-server.log I've also tried @reboot R -e ...
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1answer
45 views

Crontab - don't log? How can I do it right?

I've search for a answer of my problem but I can't find the right one. So I try it my self. I've got an Ubuntu Server and try to create a TeamSpeak3 Server - check file with loggin function. This ...
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1answer
33 views

org.freedesktop.DBus.Error.UnknownMethod on auth.log

My auth.log is full with error messages of freedesktop, most of them look more or less as follows: May 25 07:59:40 lati dbus[425]: message repeated 7 times: [ [system] Rejected send message, 3 ...
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35 views

LibreOffice 4.3 Error Logs - Where are they?

I cannot find out why LO Base cannot connect to mysql. Where are the log files located? I am running LO 4.3, mysql 5.6, on 14.04LTS.
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34 views

Cannot find log of application started through init.d script

I have created a .deb package of my scala application using sbt. I have successfully installed the application and am able to run it properly. Now, I want to start my application on system startup. ...
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47 views

Unable to start bootlogd

Since none of my boot messages are logged on Ubuntu Server 15.04, I tried: sudo service bootlogd start Failed to start bootlogd.service: Unit bootlogd.service is masked. This is related to systemd. ...
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2answers
74 views

Rotate nohup output

I'm working with weblogic 10.3.5 under ubuntu 12.04. Weblogic is started using nohup ./startWebLogic.sh ...
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1answer
25 views

Unable to log in Ubuntu 12.04 LTS

I am unable to log into my Ubuntu 12.04 machine, username and password prompts reapper again. I can only log in as a guest.
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1answer
74 views

Is it safe to delete btmp from log on ubuntu 14.04 rackapace server?

Basically I want to clear unwanted log files from ubuntu 14.04 rackspace cloud server. as files are using too much space. can I remove following log files from server ? /var/log btmp (35.4 MB) ...
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2answers
118 views

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 ...
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1answer
101 views

Change iptables log format

Is it possible to change the log format of iptables ? I want to add the ssh_client in the log. I have already made an iptables rule for outgoing ssh iptables -I OUTPUT -p tcp --dport 22 -j LOG ...
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1answer
42 views

Lastlog grows to 4.2G after SSH logout

Running a VPS with Ubuntu 12.04.5 LTS. Noticed a spike in disk usage. Turns out the culprit is lastlog. Overwrote it with >/var/log/lastlog. After logging out of the session and logging back in, ...
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96 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 ...
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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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1answer
18 views

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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52 views

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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17 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
15 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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33 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
51 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
197 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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1answer
26 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
36 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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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
71 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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26 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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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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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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29 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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42 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
49 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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359 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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35 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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66 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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95 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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23 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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73 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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2k views

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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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 ...