VyOS Configuration Tips for Enhancing Network Security

Hello VyOS Community!

As a recent addition to the VyOS team, I’ve had the opportunity to dive deep into the world of networking and security over the past three months. Coming from a data company background, I’ve had some exposure to the field, but I still consider myself a beginner in many aspects of networking.

In this post, I want to share the valuable insights I’ve gained and offer some helpful tips specifically for fellow beginners in networking and security. I hope these tips will assist you in enhancing network security while using VyOS.

Let’s begin! Here are my tips that will help reinforce your network defenses and protect against potential threats.

  1. Enable Firewall and Rule Optimization: Learn how to leverage capabilities effectively. Configure firewall rule optimization techniques to allow only necessary traffic and thwart unauthorized access.

  2. Implement Strong Authentication Mechanisms: Strengthen your network security by enforcing robust authentication methods. Explore VyOS authentication mechanisms such as Two-Factor Authentication, Public Key Infrastructure, and Radius integration for enhanced access control.

  3. Harden Network Devices: Apply best practices to harden your VyOS devices. Disable unnecessary service, secure administrative access, regularly update firmware and software, and implement strong password policies to mitigate security risks.

  4. Secure Remote Access with VPN: Safeguard your network when accessing it remotely by setting up VyOS VPN solutions. Explore IPSec or OpenVPN configurations to establish secure encrypted tunnels and ensure secure remote connectivity.

  5. Implement Intrusion Detection and Prevention System: Leverage VyOS with IDPS solutions to detect and prevent potential network intrusions. Configure signature-based detection, traffic analysis, and anomaly detection techniques to bolster your network’s security posture.

  6. Enable Logging and Monitoring: Enable VyOS logging and monitoring features to track network activity, detect suspicious behavior, and troubleshoot security incidents. Utilize tools like syslog, SNMP, or centralized log management systems for comprehensive networking visibility.

  7. Regularly Update and Patch VyOS: Stay up to date with the latest VyOS releases and security patches. Regularly update your VyOS instances to benefit from bug fixes, security enhancements, and new features.

  8. Implement Network Segmentation: Implement network segmentation using VyOS features like VLANs or Virtual Routing and Forwarding. Isolate sensitive systems and user groups, enhancing security and limiting the impact of potential breaches.

  9. Perform Vulnerability Assessments and Penetration Testing: Conduct periodic vulnerability assessments and penetration tests on your network. Identify potential vulnerabilities, assess their severity, and remediate them promptly to enhance network security.

  10. Stay Engaged with the VyOS Community: I have to mention about the VyOS community. Stay connected with the VyOS community forum. Engage in discussions, seek advice, and share experiences to continuously improve your network security practices.

Remember, network security is an ongoing process, so stay proactive and regularly review and update your security measures. I encourage you to leave a comment and share any additional tips you may have! Together, we’ll create resilient and well-protected networks!

Let’s learn and grow together.




This is a simple step, but helps a lot, limit the SSH service to your internal or managed IP address:

set service ssh listen-address


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