Backup a server on Debian or Ubuntu Linux

Backup a server can limit the risk of data loss and facilitate reinstall in case of failure. It is therefore imperative to regularly backup all critical data to a local disk or to a remote server. A backup can be done manually by Continue reading Backup a server on Debian or Ubuntu Linux

Useful commands for Debian or Ubuntu Linux

Linux is an operating system. It allows the configuration and the execution of all other programs on the server. It is available in several distributions including Debian and Ubuntu which deliver the best compromise between simplicity, security and robustness. This Continue reading Useful commands for Debian or Ubuntu Linux

Create and install a firewall on Debian or Ubuntu Linux

A firewall is a program that secures a server by filtering the network accesses made from and to the outside. An effective way to create a firewall is to restrict access to the ports used by the server’s applications. This post describes Continue reading Create and install a firewall on Debian or Ubuntu Linux