MTR is a simple network diagnostics tool that combines the functionality of traceroute and ping programs commonly used as a single tool. The traceroute program was initially designed as a Unix application that allows you to view the path that the information circulates in the Internet by tracking a data packet sent from your local computer to any computer or any server recipient on the Internet...
What is Kubernetes
Kubernetes is an open source tool for managing and orchestrating docker containers in a cluster of servers. It was originally designed by Google and it is now a project run by the Cloud Native Computing Foundation. Its purpose is to provide a “platform for automating the deployment, scaling and operating the application containers in computer groups’. It works with a wide range of...
What is NTP
Network Time Protocol (NTP) is a network protocol for synchronizing clock between computers by packet switching, with a variable latency across data networks. NTP is one of the oldest Internet protocols in operation. It worked even before 1985. NTP allows network devices to synchronize their time settings with an NTP server. A group of NTP customers who get time and date information from a single...
What is Laravel
Defined as a PHP-like open source programming language, Laravel has gained a large number of programmers through the simplicity and ease of its interface. Considered not just easy to install and used but also elegant, Laravel presents that attractiveness dose that can delight the web developer’s technical eye, who wants to create good looking layouts without advanced knowledge of web design...
What is Lynis
Lynis is an open source command line and an audit tool for Linux/UNIX specialists. It is designed to scan the system configuration and create an overview of information and system security issues. Developers behind the Lynis project announce that the software tends to become a stable solution for creating a “safety system.” The audience for Lynis is security specialists, system...
What is GNU Privacy Guard
The GNU Privacy Guard (GnuPG or GPG) is a free replacement for the PGP Cryptographic Suite, licensed under the GPL v3 license. It is part of the GNU All Free Software Foundation project, and it has received important funding from the German government. GnuPG fully complies with RFC 4880, the IETF standard for OpenPGP. The current versions of PGP (and Filecrypt of Veridis) are interoperable with...
What is Jenkins
Jenkins, also known as Jenkins CI, is the most powerful server with continous integration, which offers over 300 plugins for building and testing any software project. It is a web-based application running on a web server, such as Apache. With Jenkins you can monitor the execution of repeated jobs, including those executed by Cron or similar automation software. It is easy to install, it can be...
Lightweight Directory Access Protocol – LDAP
LDAP (Lightweight Directory Access Protocol) is a protocol used to query and modify directory service over TCP/IP. A directory is a set of objects with attributes organized in a hierarchical structure. A LDAP directory tree most often reflects political boundaries, geographic one or other organizations, depending on the chosen model. LDAP users currently prefer DNS to structure levels of a...
What is Fail2Ban
A permanently connected server is a chosen target for external attacks. Although using a firewall reduces the risk of attacks, to control password-protected access to one or more unsuccessful connection requests, we use Fail2Ban that is highly effective for Bruteforce attacks. Fail2ban is a tool that bans IPs that try to log in with SSH with the wrong user/pass. When we talk about hosting...
What is OAuth
OAuth is a free protocol that allows access to resources on another website without disclosing login credentials (username and password) to the website where the access to those shared resources is needed (images, videos, email, bank accounts, etc.) It is basically a key or a badge for a visitor, which has more restricted access to the personal resources on a website than if they were accessed...