Technical guides and operational notes filed under Linux.
Technical guides and operational notes filed under Linux.
PIP is a package management system used to install and manage software packages written in Python. PIP can be installed either by using YUM or with Curl & Python. Login to your CentOS 7 server with root user using putty…
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In certain circumstances , your servers user data files may corrupt which can create issues while migrating , operating the cpanel accounts. These user data files can be repaired using a valid and working httpd.conf…
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An inode is an entry in inode table, containing information ( the metadata ) about a regular file and directory. An inode is a data structure on a traditional Unix-style file system such as ext3 or ext4. Inodes store…
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As a System Administrator, server uptime has much importance. The servers must be running as long as possible. While keeping this server uptime consistent, a System Administrator should also have to apply the patches…
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Installing Desktop Environment Most servers don’t have a desktop environment installed, so we’ll start by installing a lightweight desktop environment. There are several desktop environments (DE) available in Ubuntu…
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Modern and performance/server grade network interface have the capability of using transmit and receive buffer description ring into the main memory. They use direct memory access (DMA) to transfer packets from the main…
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View selected lines of a document/file # sed -n '9,20p' file.txt View the entire file except selected lines # sed '21,40d' file.txt Replacing words or characters in a file # sed 's/centos/ubuntu/g' file.txt To make…
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On CentOS 7, FirewallD a default firewall management tool is enabled. In order to install iptables , we need FirewallD from server: # systemctl stop firewalld # systemctl disable firewalld # systemctl mask --now…
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FFmpeg is a free and open-source project consisting of a vast software suite of libraries and programs for handling video, audio, and other multimedia files and streams. It contains libavcodec, libavutil, libavformat…
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How to add swap space on CentOS 7, which is a type of virtual memory that can be used to extend the amount of physical RAM available to the system. This can be useful if you are running out of RAM and your system is…
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