How to View System Log Files in Linux

Use the following commands to see log files: Linux logs can be viewed with the command cd/var/log, then by typing the command ls to see the logs stored under this directory. One of the most important logs to view is the syslog, which logs everything but auth-related messages.

1. How do I read a log file in Linux terminal?
2. How do I check system logs?
3. How do I view system logs in Ubuntu?
4. What is log file in Linux?
5. How do I find the kernel log in Linux?
6. How do I find old event viewer logs?
7. Where are the event viewer logs stored?
8. Where is syslog stored?
9. Where are Sudo logs stored?
10. How do I download a log file in Linux?
11. What is difference between syslog and Rsyslog?
12. What are different types of logs?

How do I read a log file in Linux terminal?

Linux: How to view log files on the shell

1. Get the last N lines of a log file. The most important command is "tail". ...
2. Get new lines from a file continuously. To get all newly added lines from a log file in realtime on the shell, use the command: tail -f /var/log/mail.log. ...
3. Get the result line by line. ...
4. Search in a log file. ...
5. View the whole content of a file.

How do I check system logs?

Checking Windows Event Logs

1. Press ⊞ Win + R on the M-Files server computer. ...
2. In the Open text field, type in eventvwr and click OK. ...
3. Expand the Windows Logs node.
4. Select the Application node. ...
5. Click Filter Current Log... on the Actions pane in the Application section to list only the entries that are related to M-Files.

How do I view system logs in Ubuntu?

System logs

1. Authorization log. Location: /var/log/auth.log. ...
2. Daemon Log. Location: /var/log/daemon.log. ...
3. Debug log. Location: /var/log/debug. ...
4. Kernel log. Location: /var/log/kern.log. ...
5. System log. Location: /var/log/syslog. ...
6. Apache logs. Location: /var/log/apache2/ (subdirectory) ...
7. X11 server logs. ...
8. Login failures log.

What is log file in Linux?

Log files are a set of records that Linux maintains for the administrators to keep track of important events. They contain messages about the server, including the kernel, services and applications running on it. Linux provides a centralized repository of log files that can be located under the /var/log directory.

How do I find the kernel log in Linux?

You can also view this log using the dmesg command. Another log you can use to view kernel information is the /var/log/kern. log file, this logs the kernel information and events on your system, it also logs dmesg output.

How do I find old event viewer logs?

The events are stored by default in "C:\Windows\System32\winevt\Logs" (. evt, . evtx files) . If you can locate them, you can simply open them in the Event Viewer application.

Where are the event viewer logs stored?

By default, Event Viewer log files use the . evt extension and are located in the %SystemRoot%\System32\Config folder. Log file name and location information is stored in the registry. You can edit this information to change the default location of the log files.

Where is syslog stored?

/var/log/syslog and /var/log/messages store all global system activity data, including startup messages. Debian-based systems like Ubuntu store this in /var/log/syslog , while Red Hat-based systems like RHEL or CentOS use /var/log/messages .

Where are Sudo logs stored?

The sudo logs are kept in "/var/log/secure" file in RPM-based systems such as CentOS and Fedora.

How do I download a log file in Linux?

How to download large files from Linux server using command line

1. Step 1 : Login to the server using the SSH login details. ...
2. Step 2 : Since we are using 'Zip' for this example, the server must have Zip installed. ...
3. Step 3 : Compress the file or folder you want to download. ...
4. For file :
5. For folder :
6. Step 4 : Now download the file using the following command.

What is difference between syslog and Rsyslog?

Syslog (daemon also named sysklogd ) is the default LM in common Linux distributions. Light but not very flexible, you can redirect log flux sorted by facility and severity to files and over network (TCP, UDP). rsyslog is an "advanced" version of sysklogd where the config file remains the same (you can copy a syslog.

What are different types of logs?

Types of logs

• Gamma ray logs.
• Spectral gamma ray logs.
• Density logging.
• Neutron porosity logs.
• Pulsed neutron lifetime logs.
• Carbon oxygen logs.
• Geochemical logs.