Change default SSH port

The Secure Shell (SSH) Protocol uses port 22 by default. Accepting this value does not make your system insecure, nor will changing the port provide a significant variance in security. However, changing the default SSH port will stop many automated attacks and will make it a bit harder to guess

Security Checklist for Linux System

I don't really know why this subject is routinely ignored by users regardless of device or OS. Everyone seems to be concerned with their own security, but it all ends merely on complaining and blaming others, not ourselves. Maintaining security of an operating system is one of the primary responsibilities

Etherneting Raspberry Pi (configure static eth0)

After running my webserver via WiFi connection for the past 2 months, I've finally decided to set a proper connection using Ethernet cable. I was postponing it, as I needed a 10m cable to connect my Pi to the nearest router. But, at last, I've managed to buy the cable

Raspberry Pi: fail2ban (Security - Part III)

As I have mentioned before, fail2ban is a daemon that scans defined log files and bans IPs that show the malicious signs "” too many password failures, seeking for exploits, etc. It is a must tool, especially if you would want to allow ssh access from outside your local network.

Raspberry Pi: iptables (Security - Part II)

Iptables The firewall configuration, especially if you're a beginner in Linux, may seem tricky and difficult to understand. But once you've grasped the basics of commands, you can write your own script instead of using ready ones, which not always may be correct for your needs. If any of the


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