A port is a logical entity that represents an endpoint of communication and is associated with a given process or service in an operating system. In previous articles, we explained how to find out the list of all open ports in Linux and how to check if remote ports are reachable using the Netcat command.
As a Linux administrator, you must periodically check which files and folders are consuming more disk space. It is very necessary to find unnecessary junk and free up them from your hard disk. This brief tutorial describes how to find the largest files and folders in the Linux file system using du (disk usage)
In our previous article, we have seen 20 Netstat Commands (netstat now replaced by ss command) to monitor or manage a Linux network. This is our another ongoing series of packet sniffer tool called tcpdump. Here, we are going to show you how to install tcpdump and then we discuss and cover some useful commands
It’s really a very tough job for every System or Network administrator to monitor and debug Linux System Performance problems every day. After being a Linux Administrator for 10 years in the IT industry, I came to know that how hard is to monitor and keep systems up and running. For this reason, we’ve compiled
A system administrator’s routine tasks include configuring, maintaining, troubleshooting, and managing servers and networks within data centers. There are numerous tools and utilities in Linux designed for administrative purposes. In this article, we will review some of the most used command-line tools and utilities for network management in Linux, under different categories. We will explain
Are you having problems monitoring your Linux network bandwidth usage? Do you need help? It’s important that you are able to visualize what is happening in your network in order to understand and resolve whatever is causing network slowness or simply to keep an eye on your network. Read Also: 20 Command Line Tools to
How To Fix The Unsupported SFP+ Issue in Linux ? Hi guys, You might have experienced some troubles in finding the right interface which has the 10G uplink. Sometimes, the interface doesn’t show up. This is because the ixgbe module failed to load because an unsupported SFP+ module type was detected. How to fix
The lsof command in Linux displays in its output information about files that are opened by processes. In this article, we will discuss the Linux lsof tool using 15 easy-to-understand examples. Please note that all examples mentioned in this tutorial have been tested on Ubuntu 20.04 LTS, but they will work on other Linux distributions
Iptables is used to set up, maintain, and inspect the tables of IP packet filter rules in the Linux kernel. You can delete one or more rules from the selected chain. There are two versions of this command: the rule can be specified as a number in the chain (starting at 1 for the first
I primarily use desktop Linux on my home computers. I also have multiple Linux servers for hosting It’s FOSS and related websites and open source software like Nextcloud, Discourse, Ghost, Rocket Chat etc. I use Linode for quickly deploying Linux servers in cloud in minutes. But recently, I installed Ubuntu server on my Raspberry Pi.