This category contains all the Linux, Solaris and ELK based topics.
In this article, we will discuss how to fix the No Internet Connection issue after you installed Ubuntu 20.04. It is very often observed that after installing Ubuntu 20.04 either on a Physical Server or on a virtual machine, if you try to connect Internet then it won't work. This usually happens when your network ... Read more
In this article, we will look into 12 Best Linux du command examples to Check File Space Usage. du is also known as disk usage in Linux. It is one of the most popular tool available to check and track the files and directories usage in the Server. We will go through the usage of ... Read more
In this article, we are going to look at the 12 Practical and Useful free command examples frequently used in Linux (RHEL/CentOS 7/8). free command is an open source utility frequently used in Linux Based Servers to display the total amount of free and used physical and swap memory in the System. It parses all ... Read more
In this article, we will look into 10 Simple and Useful ntpdate command examples in Linux(RHEL/CentOS 7/8). If you are following up on my articles then last time we have seen the Steps to install and configure NTP Server on Linux so in this article we will look into the usages of all the utilities ... Read more
In this article, we will look into how to configure NTP Server on RHEL/CentOS 7/8 Using 7 Easy Steps. If you are working in any of the Cluster environment then you might be aware of the importance of having clock synced between all the nodes in a Cluster. Generally, a cluster requires a setup from ... Read more
In this article, we will look into 10 Practical and Useful ntpq Command examples that can be used in Linux Servers to check the NTP Server stats. ntpq is an open source and free utility available on Linux Based Servers that monitors the NTP daemon NTPD and queries its performance. This is one of the ... Read more
In this tutorial, we will understand the steps and queries required to check the Elasticsearch cluster health status. Sometimes you might have noticed that frontend app which was fetching data from Elasticsearch cluster suddenly not showing any data and it goes completely blank. Although the issue could be anywhere but just for the understanding we ... Read more
In this tutorial I will take you through the best steps to Install growpart command and Resize root partition in Linux (RHEL/CentOS 7/8). You might have faced a scenario where after installing Linux OS in your Server you needed more space in root partition to install more packages and libraries. While you can increase the ... Read more
In this article, I will guide you through 50 Useful Zypper Command Examples to Manage Packages on OpenSUSE Linux. You might have heard about yum utility for managing packages on RHEL/CentOS Based Servers and apt-get utility on Ubuntu/Debian Based Servers. Similarly we have zypper utility available for OpenSUSE/SUSE based Servers. Zypper is a very useful ... Read more
In this article, I will show you how to start and enable sshd service in OpenSUSE Linux. Sometimes when you try to connect your Server through ssh protocol on Port 22, you won't be able to connect because sshd service is not yet started or not running. Even if you start the sshd service and ... Read more