How to Update and Upgrade Ubuntu OS

Introduction : Why You Should Upgrade to the Latest Ubuntu Release The latest release of Ubuntu is a major milestone for the open-source operating system. It will be the first Ubuntu release to use a GNOME desktop environment by default and the last Ubuntu release to use Unity as its default graphical user interface. With …

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How to Check your Ubuntu Version

Before we start any setup or ubuntu software installation, we should verify if the version of ubuntu is supported by the software to check the version. The preferred method of checking your version of Ubuntu is to use the lsb_release utility, which displays LSB (Linux Standard Base) information about a Linux distribution. This method will …

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How do I fix WordPress PCLZIP_ERR_MISSING_FILE (-4)

Issue : When i want to update the wordpress theme or plugin, i will get the following error “PCLZIP_ERR_MISSING_FILE (-4)”. Solution : 1. To fix the following issue, please add define(‘WP_TEMP_DIR’, ABSPATH . ‘wp-content/temp’); right after }! and create temp folder in wp-content/temp. if ( ! defined( ‘ABSPATH’ ) ) { define( ‘ABSPATH’, __DIR__ . …

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How to Install Docker on Linux

The following steps will hep you get started with docker environment. # curl https://download.docker.com/linux/centos/docker-ce.repo -o /etc/yum.repos.d/docker-ce.repo # sed -i -e “s/enabled=1/enabled=0/g” /etc/yum.repos.d/docker-ce.repo # yum –enablerepo=docker-ce-stable -y install docker-ce # systemctl enable –now docker # rpm -q docker-ce docker-ce-20.10.8-3.el7.x86_64 # docker version Client: Docker Engine – Community Version: 20.10.8 API version: 1.41 Go version: go1.16.6 Git …

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How to Install Nginx with PHP-FPM on CentOS 7

Prepare Repository for CentOS / RHEL 7 : # yum install epel-release # rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-7.rpm Install PHP7.4 : # yum –enablerepo=remi-php74 install php-mysql php-xml php-soap php-xmlrpc php-mbstring php-json php-gd php-mcrypt Prepare NGINX repository : # vi /etc/yum.repos.d/nginx.repo Then, open the nginx.repo file using a text editor and add the following lines. [nginx] name=nginx repo …

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Why sudo is used in Linux

In linux, the root user is equivalent to the Administrator user on Windows. When you run the linux system administration especially in the critical systems, by allowing staff to use root all the time to perform administration and maintenance that will risk your organization and will vulnerable to security incident. For example, if there is …

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