1+ hour, 37+ min ago   (1756+ words) Home " Linux Commands " ssh Command in Linux (With Examples) SSH (Secure Shell) is both a protocol and a command-line tool. The protocol defines how two machines negotiate encryption, authenticate users, and exchange data. The ssh command is the client-side tool…...

5+ day, 3+ hour ago   (1757+ words) This guide walks you through how to install Fail2ban on Arch Linux and configure it to slow down brute-force attacks against services like SSH and HTTP authentication. Fail2ban watches your logs for repeated failures, then applies temporary firewall bans for the source…...

5+ day, 4+ hour ago   (1382+ words) Synchronize the package databases and update all installed packages to ensure you install the latest available version and avoid dependency conflicts: This command refreshes your local package database and applies any pending updates. On a rolling release like Arch, regular…...

1+ week, 2+ day ago   (1627+ words) Firewalld uses nftables as its backend on Arch Linux and operates within its own namespace, allowing other applications like Docker or libvirt to maintain separate firewall rules. For configuration details beyond this guide, see the Arch Wiki Firewalld page. Arch…...

2+ week, 1+ day ago   (1336+ words) When managing a CentOS Stream server or workstation, controlling network traffic is fundamental to securing your system against unauthorized access. Firewalld provides a dynamic firewall manager that organizes network rules into zones based on trust levels, allowing you to adapt…...

2+ week, 6+ day ago   (1701+ words) The openssh package provides both the client and server components. Arch Linux repositories maintain the latest stable OpenSSH release through rolling updates. Synchronize the package database and upgrade existing packages to prevent conflicts: Install OpenSSH using pacman: This installs all…...

3+ week, 5+ day ago   (1507+ words) This guide covers installing and configuring Fail2Ban on Rocky Linux 10, 9, and 8. You will set up the EPEL repository, install Fail2Ban with firewalld integration, configure jails for SSH and web server protection, and learn commands to monitor bans and troubleshoot issues. By the…...