John hens
135 posts
how to install almalinux 9 on vmware ?
What you will read?1 Step 1: Download Alma Linux ISO2 Step 2: Create new VM3 Step 3: Set VM resources4 Step 4: Start the installation5 Step 5: Log into AlmaLinux AlmaLinux is a stable, RHEL-compatible Linux distro, perfect for running on virtual machines. Installing it on VMware is straightforward if you follow the right steps. …
How to Install SMTP Server in Ubuntu 25.04
What you will read?1 Step 1: Update system packages2 Step 2: Install Postfix3 Step 3: Reconfigure Postfix (optional)4 Step 4: Open SMTP ports5 Step 5: Check Postfix status Setting up an SMTP server on Ubuntu 25.04 lets your system send emails — for alerts, password resets, cron jobs, and more. The most common and reliable…
How to Save MikroTik Configuration
What you will read?1 Step 1: Save active settings2 Step 2: Export to readable file3 Step 3: Create binary backup4 Step 4: Download backup files5 Step 5: Restore when needed MikroTik routers don’t automatically save your settings. That means if the router reboots or loses power before saving, any unsaved changes will be lost. MikroTik…
How to open tcp port in red hat?
What you will read?1 Step 1: Check firewall status2 Step 2: Open the TCP port3 Step 3: Reload firewall rules4 Step 4: Confirm the port is open5 Step 5: Test external access By default, Red Hat Enterprise Linux uses firewalld to manage network access. If you want to allow access to a specific TCP port,…
How To Test Internet Speed In CentOS 8
What you will read?1 Step 1: Enable EPEL2 Step 2: Install Speedtest CLI3 Step 3: Run the speed test4 Step 4: Use Ookla’s official tool5 Step 5: Run advanced tests You can check internet speed on CentOS 8 easily using terminal-based tools without a browser or GUI. Step 1: Enable EPEL Enable the EPEL repo…
how to change python version on Debian 12
What you will read?1 Step 1: Check current version2 Step 2: Install the new version3 Step 3: Configure alternatives4 Step 4: Switch the default version5 Step 5: Verify the change Debian 12 comes with Python 3 by default, but sometimes you need to use a different version — for compatibility, development, or running specific tools.…
How to Install TeamViewer on Kali Linux
What you will read?1 Step 1: Download TeamViewer2 Step 2: Update your system3 Step 3: Install the package4 Step 4: Launch TeamViewer TeamViewer is a secure and popular remote desktop tool that lets you control another computer over the internet. It’s not available in the Kali Linux repositories by default, but you can install it…
how to setup l2tp vpn on Debian 12
What you will read?1 Step 1: Install VPN packages2 Step 2: Configure IPsec3 Step 3: Add your shared secret4 Step 4: Configure L2TP client5 Step 5: Set PPP options Connecting to an L2TP/IPsec VPN server on Debian 12 via terminal is possible using strongSwan and xl2tpd. The setup below provides secure tunneling withoutrequiring any graphical…
how to setup l2tp vpn on ubuntu 24.10?
What you will read?1 Step 1: Install required packages2 Step 2: Configure IPsec3 Step 3: Add shared secret4 Step 4: Configure L2TP client5 Step 5: Set PPP options If you want to connect your Ubuntu 24.10 system to an L2TP VPN using only the terminal. Step 1: Install required packages First, install the tools needed…