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Tag: ssh port change

๐Ÿ›ก๏ธ Harden Your Linux Server in Minutes with Our One-Click Script

hosteons May 28, 2025 Leave a Comment on ๐Ÿ›ก๏ธ Harden Your Linux Server in Minutes with Our One-Click Script

Secure Your VPS with Ease โ€” Now on GitHub!

Managing a Linux server? Whether youโ€™re running Ubuntu, Debian, CentOS, or AlmaLinux โ€” one of the first steps after setup should be hardening your system against attacks.

At Hosteons, weโ€™ve created a powerful yet easy-to-use Linux Hardening Script that automates the most essential security tasks. Best of all โ€” itโ€™s completely open-source under the MIT License.

๐Ÿ”ง What Does the Script Do?

Our script walks you through an interactive setup process that includes:

โœ… Changing the default SSH port

โœ… Disabling root SSH login (optional)

โœ… Creating a new sudo-enabled user (if root login is disabled)

โœ… Installing and configuring Fail2Ban to block brute-force attacks

โœ… Installing and initiating a Lynis audit for best practices

โœ… Enabling and configuring UFW (Ubuntu/Debian) or Firewalld (CentOS/AlmaLinux)

โœ… Handling SELinux if enabled

โœ… Updating all system packages

All steps are automated and clearly explained during the process.


๐Ÿš€ Why Harden Your Server?

Running a public-facing server without basic security is like leaving your front door open. Common exploits target:

  • Default SSH ports
  • Password-authenticated root logins
  • Unpatched packages
  • Open ports and misconfigured firewalls

This script helps new VPS users and sysadmins apply battle-tested security practices without manual work.


๐Ÿ“ How to Use It

  1. SSH into your server
  2. Download the script:
curl -O https://raw.githubusercontent.com/hosteons/Linux-Hardening-Script/main/harden.sh
chmod +x harden.sh
sudo ./harden.sh
  1. Follow the prompts โ€” itโ€™s fully interactive and safe

๐Ÿ’ก Disclaimer: Changing SSH ports and disabling root login may lock you out if youโ€™re not careful. Always have VNC, IPMI, or another form of console access ready.


๐Ÿ“ฆ Open Source & Free

This project is licensed under the MIT License and developed by Hosteons.com to help the Linux and VPS community.

We welcome contributions and feedback!


๐Ÿ”— Try it now:

๐Ÿ‘‰ https://github.com/hosteons/Linux-Hardening-Script

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