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As time moves forward the servers that support IPv6 grow. Currently, estimates put global adoption somewhere around 30% to 50%. That said like anything else it can be misconfigured, not supported, etc. on different networks. In this post, we will cover how to disable ipv6 on your Ubuntu machine, for those who have run into […]
You can issue commands to Linux directly on the command line, or you could put them in a script so that a bunch of commands can run at once. Even though you could, in theory, do away with scripts altogether and issue everything on the command line, scripts make sense for various reasons. One is […]
Nslookup is a staple of Linux, and network administrators use it extensively to debug a variety of issues from e-mails not being delivered to websites not loading. DNS lookup is a fundamental part of our Internet infrastructure, and nslookup allows us to query a DNS server to see if a given domain name is properly […]
Have you ever encountered a time when you worked in a remote Linux server and needed to check what was connected to the system’s local PCI Express and PCI buses? To determine what PCI devices are connected one of the simplest ways to do this is using the lspci command. Introduction The lspci command on […]
After you’ve run a Linux server for a long time, it can be time to clean house and optimize your system. One of the easiest ways to get started is to search your system for large files and see where you can get rid of big stuff with the least impact. You might find that […]
The gunzip command in Linux is used to unzip files that have been compressed using the “gzip” format. As such, it can’t unzip files that use a different compression mechanism like say, rar files or even the “zip” files that we see on Windows. Here, I’ll show you how to use the gunzip command to […]
Have you required a test file or files of a specific size? How about needing to quickly allocate space? If so my first recommendation is the fallocate command. In this blog post, we will explore this command, how it differs from other options, and what else it can do. Introduction The fallocate command is part […]
ISO files are a common way to distribute files and folders that would normally be stored on a physical disk. Unlike archive files like tar and zip files, ISO files are meant to be bootable. In this article, I’ll show you how to mount and unmount an ISO file on a Linux system so that […]
Pkill is a Linux command-line utility that allows you to send signals to currently running processes. The most common signal is a kill signal, from whence comes its name. But killing a process is just one of the things you can do. You can also suspend and resume them, send user-defined signals, and even notify […]
Have you ever encountered a time when you were working in a remote Linux server and needed to check what was connected to the system over USB? To determine the USB devices connected on Linux the simplest way is using the lsusb command. The lsusb command in Linux is a utility that lists the connected […]