Security & Privacy



How to Secure Your Server with UFW and iptables: A Beginner's Guide to Linux Firewalls

Greetings, friends!Configuring a network firewall is the primary and most vital step in securing any virtual server. Unprotected and open network ports quickly become targets for automated scanners, b...

How to protect the server from hacking: Setting up 2FA via Google Authenticator PAM

Greetings, friends!In modern realities, classical password protection or SSH key authorization is no longer enough if an administrator's account becomes compromised. Implementing Two-Factor Authentica...

What should I do if the server's IP is blacklisted (Spamhaus, etc.)?

Suppose you have set up a mail server, prepared an important B2B email campaign with commercial proposals for client leads, or launched automated order notifications for an online store. But suddenly,...

How to Protect Your Website from Bots, Scrapers, and Automated Threats in 2026

Greetings, friends!According to network traffic statistics, internet background noise is composed of more than 50% automated system activity. While you work on optimizing conversion rates and refining...

Setting up a Self-Hosted Password Manager: Vaultwarden on Ubuntu 24.04

Greetings, friends!Are you familiar with that feeling of slight anxiety when you entrust all your critical passwords, access keys, and payment data to commercial cloud managers? In recent years, major...