In this article I want to visit a “not used enough” Linux tool called logger. As with managing any system, you want to accurately annotate historical events and adding entries into the system log file is a great way to accomplish this. You can view the system log file with this command: awalding@aw-vb:~$ cat /var/log/syslog …
Too many people shrug off Linux for fears of security with a free and open source operating system, even today. For those of us who know that Linux is no less or more secure than any other operating system, we must be sensitive to this and we must be well versed in Linux commands that …
Linux Security Focused Commands We All Need to Use Read More »
An essential function when administering a Linux system is configuring and managing users and groups. I cover adding users in this article: https://www.cellstream.com/reference-reading/tipsandtricks/582-using-the-useradd-command-to-create-user-accounts-in-linux That said, viewing users is done using a few simple commands. How To View Users on a Linux System Every user on a Linux system, whether created as an account for a real …
Like most operating systems, Linux can have multiple user accounts. The system administrator or root account, or users with sudo privileges are responsible for managing these users, as well as managing those accounts. Linux is a multi-user system, which means that more than one person can interact with the same system at the same time. …
Using the useradd Command to Create User Accounts in Linux Read More »
This article will discuss how to use some cool bandwidth monitoring tools in Linux so that you have a screen that looks like this: The first thing we will need is a multi-tab flexible terminal emulator. My choice is Tilix, but there are others like Terminator. sudo apt install tilix -y Now that you have …
First things first – the Wireshark downloads page is here: https://www.wireshark.org/download.html I know I have put the answer to this in other articles over the years (like this one), but I think it is appropriate to answer the question directly and specifically. Installing Wireshark in Ubuntu or virtually any Linux distribution is pretty easy – …
How do I install / upgrade Wireshark in Ubuntu Linux? Read More »
Check out these additional IPv6 Resources: Our IPv6 overview course at Udemy Our IPv6 Custom Profiles for Wireshark Our IPv6 classes at the Online School The following is a list of IPv6 operations and their associated How To links for Ubuntu. Please feel free to comment on additional links that others can use: Ubuntu …
Check out these additional IPv6 Resources: Our IPv6 overview course at Udemy Our IPv6 Custom Profiles for Wireshark Our IPv6 classes at the Online School Here are some great Linux command line entries you can make to examine and configure IPv6 (assuming your version of Linux ipconfg does so). Let’s start with some simple ones. …
If you are new, or if you are experienced in Linux, it is always helpful to have a cheat sheet with all the various commands to help you control networking, process files, and much more. Sometimes a cheat sheet can even show you better ways to do something, or even introduce you to new things …
