Nano is an popular, feature rich command line text editor for Unix/Linux based systems. After the vim/vi a large number of users preferred nano as command line editor. This article describes you to how to search in nano on command line interface. How to Search in Nano To search for text in nano, press Ctrl-W […]
Cron name originates from a Greek word Chronos, which is used for time. It is a daemon for the Linux systems to automate the execution of commands or scripts at a specified time intervals. This tutorial will show you the several options to list all scheduled cron jobs for users on Linux systems. How to […]
A time zone refers to the local time of a region or a country. Generally each country uses one time zone but few of the countries shares multiple time zones due to its geological areas. It is always an important thing to set a correct time zone in your system. Many of applications are build […]
The Linux system uses a package manager tool with central repositories like Apt, Yum etc. Which is the traditional way for the applications installation on any Linux system. Some of the application comes with extension .appimage. It may be, you are not much aware about these files. In this tutorial you will learn about the […]
Vi is a command-line text editor for the Unix/Linux based systems. Vim (Vi IMproved) is feature rich successor of the Vi text editor with multiple enhancement and user friendly. Let’s go through the first step to learn Vim to save and close file. This tutorial will help you to understand, how to save file on […]
The Zsh (Z shell) is a interactive login shell for the Unix/Linux systems. It has multiple improvement over the Bash shell and includes the best features of the Bash, ksh and tcsh shells. This tutorial will help you to install ZSH on Ubuntu 20.04 LTS Linux system. A Running Zsh Shell on Ubuntu Installing ZSH […]
Wine (Wine Is Not an Emulator) is an open-source application provides compatibility of running software developed for Microsoft Windows on Unix-like operating systems. With the help of Wine, you can run Windows software on a Linux system. Wine 5.0 is the latest version available for the installation on Ubuntu systems. This tutorial will help you […]
Linux terminal can seem quite overwhelming for new users and even for experienced users without the knowledge of Linux tips & tricks. Linux is an incredibly flexible operating system. However, it is difficult to remember all the commands and their appropriate usage. Our amazing tricks will allow you to use Linux like a pro! Take […]
Elasticsearch is flexible and powerful open-source, distributed real-time search and analytics engine. Using a simple set of APIs provides the ability for full-text search. Elastic search is freely available under the Apache 2 license, which provides the most flexibility. This tutorial will help you to setup Elasticsearch single node cluster on CentOS 8 and RedHat […]
We were unable to send emails to any email account, below error found in /var/log/maillog: type=AVC msg=audit(1524598331.078:35761): avc: denied { read } for pid=450 comm=”postfix-srs” name=”secret” dev=dm-0 ino=136160 scontext=unconfined_u:system_r:postfix_master_t:s0 tcontext=unconfined_ u:object_r:mail_spool_t:s0 tclass=file 1- Log in to the server via SSH 2- Install audit2allow utility: # yum install policycoreutils-python 3- Create allows policy for postfix-srs: # grep postfix-srs […]
