Ubuntu

Everything about Ubuntu - installation, support, administration, reviews, configuration, downloads, drivers

| 2 min read
Fail2ban is an intrusion detection system that scans the log files to find malicious attacks on your servers. Fail2ban updates firewall rules on its own to block the IP addresses which are trying to exploit the server. Below are the steps to install and configure fail2ban on Ubuntu 18.04 server. Get the newest versions of the packages and their dependencies, run the command below: sudo apt-get update Now install Fail2ban using the below command
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The Let’s Encrypt SSL certificate is valid for 90 days and the users will need to renew the SSL certificate every 90 days. So in order to make this automated, we will be setting up a cron job that will automatically renew the SSL certificates which are about to expire. The Certbot auto-renew option provides the user to auto-renew your Let's Encrypt SSL certificate automatically through a cron job. In certain cases in which the OS version is Ubuntu 12.04 LTS the certbot auto-renew option will stop working with the following error.
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Jitsi meet is a free open source video conferencing web application. Just like Google Meet and Zoom, Jitsi meet provides the option to easily create a meeting in a browser within seconds without additional software or browser extensions. Jitsi doesn't require an account to use its additional features like Screen Sharing, Group chat, Integration with different chat platforms like Mattermost or Slack. Below are the steps to install and configure Jitsi on an Ubuntu server. Step 1: You will need to have a server with SSH root access.
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Visual studio code was developed by Microsoft. It is a lightweight code editor which uses less RAM when compared to PhpStorm. VS Code contains features like syntax highlighting, bracket-matching, auto-indentation, box-selection, snippets etc.
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While working on a project using git repository, if you want to create and switch to a new branch, then use: git checkout -b [my-branch-name] To simply checkout a branch, use: git checkout [my-branch-name] If you want to rename a branch when pointed to any other branch, you can type the following command: git branch -m [old-branch-name] [new-branch-name] To rename the current branch, use: git branch -m [new-branch-name]
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OpenMeeting is an open-source project from Apache. It is a web application suitable for video conferencing, instant messaging, whiteboard, collaborative document editing, etc. The main requirement of an open meeting is Oracle Java. OpenMeeting uses a Red5 streaming server for remoting and streaming. The open meeting is an open-source solution for institutions/organizations that want to keep the conferences private and within their parameter.
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Docker is an open-source platform for system administrators and developers to build, ship, and run distributed applications, whether it's on the cloud, data center VMs, or laptops. Docker helps to automate the deployment of Linux applications inside software containers. This write-up helps you to learn, install, upgrade, and un-installation of Docker engine. Docker is supported on the following Ubuntu operating systems:
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LDAP stands for Lightweight Directory Access Protocol, which was designed to store and retrieve data centrally. Install OpenLDAP and phpLDAPadmin, before reading the configuration steps. Hope the packages were already installed, we can start configuring a few things, to connect with the OpenLDAP directory structure, created during the LDAP configuration stage. First, we can update the main configuration file with root privileges for the editor
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LDAP stands for Lightweight Directory Access Protocol, which was designed to store and access data centrally. It can be used to store any kind of information, but usually, it is used for a centralized authentication system (SSO). In some cases, it works similarly to relational databases. The main difference is the hierarchical structure in data relation. To install LDAP in your Ubuntu machine, do the following steps.
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Virtual host setup in Ubuntu is very simple, we can do this in few steps. The following commands will help you to download the latest version of all software from its repositories(that is updation) and then install 'apache2', if you have no apache2 software. Otherwise ignore the following commands and go through the main steps for VirtualHost setup.
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PhoneGap is an open source based Mobile App Development Framework. It is also known as Apache Cordova. Every mobile operating system providers have their own set tools and environments for developing application. Application made for one operating system and it's not support other operating systems. Developers using different frameworks and languages to building mobile applications for each devices- iPhone, Android, Windows Mobile etc. PhoneGap solve the above mentioned problem. Are you searching for an App Development, ping us quickly.
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Secure Copy (scp) allows files to be copied between, to or from different hosts. It uses ssh for data transfer and provides the same authentication and same level of security as ssh. It has some exit status, 0 on success, and if an error occurs it uses >0. I used some scp options in my Ubuntu terminal. Here I am sharing some information about scp options that are used in Ubuntu - terminal.