Network and security specialist focused on VPN protocols, proxies and server hardening. Cooper spends his days breaking and fixing tunneling setups (WireGuard, V2Ray, Xray) so readers can follow battle-tested configurations instead of guesswork.
567 posts
What you will read?1 Step 1: Install Java (Required by Jenkins)2 Step 2: Add Jenkins Repository3 Step 3: Install Jenkins4 Step 4: Start and Enable Jenkins Service5 Step 5: Open the Firewall (UFW)6 Step 6: Access Jenkins Web Interface Jenkins is an open-source automation server widely used for CI/CD pipelines. Here’s how to install the…
What you will read?1 Step 1: Update Your System and Install Dependencies2 Step 2: Create Nagios User and Group3 Step 3: Download and Compile Nagios Core4 Step 4: Set Up Web Access for Nagios5 Step 5: Install Nagios Plugins6 Step 6: Enable and Start Nagios Service7 Step 7: Access the Nagios Web UI Nagios is…
What you will read?1 Step 1: Install Required Packages2 Step 2: Create a Nagios User and Group3 Step 3: Download and Compile Nagios Core4 Step 4: Set Up Web Interface5 Step 5: Install Nagios Plugins6 Step 6: Enable and Start Nagios7 Step 7: Access Nagios Dashboard Nagios is a powerful monitoring system used to track…
What you will read?1 Update Your Package Index First2 Install a Package3 Install Multiple Packages4 Search for a Package5 Get Detailed Info Before Installing6 Install .deb Files Manually7 Remove a Package8 Clean Up After Installation Installing packages on Debian 12.11 is straightforward thanks to apt, the Advanced Packaging Tool. Whether you’re setting up a development…
What you will read?1 Step 1 – Install chrony2 Step 2 – Configure chrony as an NTP Server3 Step 3 – Restart and Verify the Server4 Step 4 – Allow NTP Through the Firewall5 Step 5 – Confirm NTP Clients Can Sync To set up an NTP (Network Time Protocol) server on CentOS 8, you’ll…
What you will read?1 Exit nano2 Exit vim3 Exit less or man If you’re inside a file in the Linux terminal — usually opened with commands like nano, vim, or less — the way to exit depends on which program you’re using. Exit nano If you opened a file like this: nano filename.txt To exit:…
What you will read?1 Step 1 – Switch to Root User2 Step 2 – Install sudo3 Step 3 – Verify Installation4 Step 4 – Add Your User to sudo Group (If Needed) If you see the error: sudo: command not found .It means sudo is either not installed or not in your system’s PATH. Here’s…
What you will read?1 Install Packages Using dnf2 Search for Available Packages3 Install .rpm Files Manually4 Enable EPEL Repository5 Check Installed Packages In CentOS 8, package management is handled by dnf, the successor to yum. You can also install .rpm files manually or use third-party repositories like EPEL. Install Packages Using dnf The standard way…
What you will read?1 Install Using APT (Default Package Manager)2 Install .deb Files3 Install via Snap4 Install via Flatpak (Optional) Installing packages on Ubuntu 24.10 can be done using APT, DEB files, Snap, or Flatpak. Here’s how to use each method. Install Using APT (Default Package Manager) To install a package using APT: sudo apt…
