Linux

How to Set a WLAN Frequency or Channel in Linux for Wireshark Packet Capture

Leave a Comment / Networking and Computing Tips and Tricks / By

Post Views: 150 Learning how to manually control Wi-Fi channels in Linux is a foundational skill for wireless troubleshooting and packet analysis. Proper channel selection is critical because Wi-Fi troubleshooting is highly dependent on capturing the correct RF environment at the correct moment in time. When combined with Wireshark, Linux monitor mode provides one of […]

How to Set a WLAN Frequency or Channel in Linux for Wireshark Packet Capture Read More »

IPv6 Linux Command Line Examples

Leave a Comment / Networking and Computing Tips and Tricks / By

Post Views: 1,949 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 OK folks, based on some feedback from Reddit, I decided to update this post from 2013. Modern Linux distributions have largely deprecated the legacy net-tools suite (which

IPv6 Linux Command Line Examples Read More »

smalllinux

A Better Linux Resource Monitor

Leave a Comment / Networking and Computing Tips and Tricks / By

Post Views: 2,067 What is btop? btop (aka btop++) is a modern and visually appealing resource monitoring tool for Linux and other operating systems. It is part of the bpytop family, created by the same developer, and is written in C++ for performance and efficiency. Like htop, btop provides detailed information about system resources, including

A Better Linux Resource Monitor Read More »

What is the ‘nslookup’ command, and how can I use it?

Leave a Comment / Networking and Computing Tips and Tricks / By

Post Views: 5,270 The nslookup command is a built-in network administration tool available on Windows, macOS, and many Linux distributions. It is used to query DNS servers to retrieve information about domain names, IP addresses, and DNS records. Basic Syntax: nslookup [hostname] [DNS server] Components: Common Use Cases: Example Output: Query a Domain: nslookup example.com

What is the ‘nslookup’ command, and how can I use it? Read More »

smalllinux

A Simple Linux Firewall – ufw

Leave a Comment / Networking and Computing Tips and Tricks / By

Post Views: 2,820 Configuring a firewall rule in Ubuntu typically involves using iptables or nftables. I have written a separate article on iptables here. What if we wanted to make life a little less involved. The answer is ufw (Uncomplicated Firewall), which is a user-friendly front-end for managing iptables firewall rules. Here’s how you can

A Simple Linux Firewall – ufw Read More »

smalllinux

How to Configure iptables in Linux

Leave a Comment / Networking and Computing Tips and Tricks / By

Post Views: 3,400 iptables is a command-line utility in Linux that allows you to configure the rules of the packet filtering and NAT (Network Address Translation) framework, known as netfilter, within the Linux kernel. It is a key tool for managing network traffic and implementing a firewall on Linux systems. Here’s an overview of what

How to Configure iptables in Linux Read More »

Our Windows (and Linux) Networking Toolkits

Leave a Comment / Networking and Computing Tips and Tricks / By

Post Views: 3,257 Well folks, I have decided to make this toolkit available to all. Just download it here. The Linux bash version can be downloaded here. Yes, Windows offers several built-in tools and utilities that can help with networking tasks and commands. Here’s an overview of some of the most useful tools: The problem

Our Windows (and Linux) Networking Toolkits Read More »

smalllinux

Viewing Users/System Users on Linux

Leave a Comment / Networking and Computing Tips and Tricks / By

Post Views: 2,566 An essential function when administering a Linux system is viewing, configuring and managing users and groups. I cover adding users in this article: https://www.cellstream.com/2022/04/06/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

Viewing Users/System Users on Linux Read More »

smalllinux

Using the useradd Command to Create User Accounts in Linux

Leave a Comment / Networking and Computing Tips and Tricks / By

Post Views: 4,420 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

Using the useradd Command to Create User Accounts in Linux Read More »

smalllinux

Seven Awesome Linux Terminal Utilities for Everyone

Leave a Comment / Networking and Computing Tips and Tricks / By

Post Views: 2,923 If you are a Linux user, you know how important the Terminal is to your compute world.  Here are Seven Awesome Linux Terminal Utilities for Everyone. Now there are a bunch of different Terminals in Linux, this article is not about that, but I like Tilix the best: sudo apt install tilix

Seven Awesome Linux Terminal Utilities for Everyone Read More »

learn wireshark

How do I install / upgrade Wireshark in Ubuntu Linux?

Leave a Comment / Frequently Asked Questions / By

Post Views: 3,587 How do I install / upgrade Wireshark in Ubuntu Linux?  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.

How do I install / upgrade Wireshark in Ubuntu Linux? Read More »

Scroll to Top