Basic Understanding of Log Files in Linux.

Linux system logged all the tasks performed during the operations in the different log files. It is the best practice to go through the logs of the system everyday by system administrator. This will help to find out the system activities carried out by user and troubleshooting issues if any. Third party applications might write …

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dpkg Command in Debian Based Linux

dpkg stands for Debian Package is a Package Manager for Debian and it’s derivatives Linux Operating System. dpkg is one of the built-in command in Debian based system.  With the help of this command we can install, remove, queries and manage individual .deb packages. In this article, we will have a look some of the dpkg commands …

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MySQL installation in Ubuntu Linux 18.04 LTS

MySQL is an open source and popular RDMS  (Relational Database Management System). It’s widely used in web technology in today’s date, and also it’s part of LAMP (Linux, Apache, MySQL, PHP/Perl/Python) stack.  In this post, we will demonstrate “two methods” to install MySQL database in Ubuntu Linux 18.04 LTS. Following are the two methods. We will walk you through one …

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Linux System Performance Monitoring Tool

The sysstat (System Statistics) package contains various utilities to monitor the performance and usage of system activities.  This tool should not be missed out to install in Linux system, and it is the must have system administrator monitoring utility for any flavor of Linux system in production. Following are the  utilities included in sysstat package. sar …

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How to Install MongoDB Community Edition in Red Hat and CentOS 8 Linux.

MongoDB is a document-oriented cross-platform, widely used leading NoSQL database program. NoSQL means no-schema, no concept of relationship  and  not only SQL. There won’t be a rows and columns kind of things.  MongoDB stores data in key-value pairs.  MongoDB provides agility, scalability, performance and high availability. MongoDB Community Edition is freely available for download on 64bit platform …

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How to disable & Enable SELinux on RHEL and CentOS Linux

Security-Enhanced Linux (SELinux) was integrated into the upstream Linux kernel in 2003. It’s a Linux kernel security features  for access control. SELinux defines access controls for the applications, processes, and files on a system. SELinux provides the extra layer of security on the running system.  We must enable SELinux as far as the security is concerned if the systems …

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