Category: Security & Firewall
What Is ClamAV? Malware Scanning for Servers
What Is ClamAV?
ClamAV is a file-scanning engine, not a guarantee that a running system is clean or a replacement for endpoint detection and incident response. Installing it does not automatically scan every upload or email; those workflows need explicit integration.
ClamAV is a free and open-source antivirus platform ...
Linux Malware Detect: Maldet Scanning and Quarantine
Understanding Linux Malware Detect (LMD)
Linux Malware Detect, commonly known as LMD or Maldet, is a free and open-source malware scanning tool designed specifically for Linux-based hosting environments. It was developed to help system administrators identify malicious files, backdoors, web shells, malware uploads, and other security threats commonly ...
PHP2Shell: Patched PHP Versions and Server Update Guide
PHP2Shell is the name being used for the critical PHP vulnerabilities CVE-2026-109618 and CVE-2026-109619. Server administrators should identify exposed PHP applications, prepare to install vendor-confirmed fixes, and decide whether temporary access restrictions are necessary. This guide covers PHP websites on shared hosting, virtual and dedicated servers, and ...
What Is a DDoS-Protected VPS? Features and Limits
Understanding DDoS-Protected VPS Hosting
Website downtime can be costly. Whether you operate an ecommerce store, SaaS platform, gaming server, business website, or online application, a Distributed Denial of Service (DDoS) attack can disrupt operations and impact revenue within minutes.
A DDoS-protected VPS is a Virtual Private Server that includes ...
DDoS Protection for Dedicated Servers: A Practical Guide
Why DDoS Protection Matters for Dedicated Servers
Dedicated servers provide exceptional performance, reliability, and complete resource control. However, because they often host business-critical applications, websites, APIs, gaming platforms, and SaaS services, they are also frequent targets of Distributed Denial of Service (DDoS) attacks.
A successful DDoS attack can overwhelm ...
WordPress Malware Hidden Admin Backdoor & Rogue bdthemes Plugin
WordPress Malware Investigation: Hidden Admin Access, Rogue Plugin and Persistent Login Backdoor
The ColonelServer Security & Infrastructure Team recently investigated a WordPress security incident that developed into a much broader forensic investigation.
What initially appeared to be an isolated compromised WordPress installation ultimately revealed a malicious plugin, unauthorized administrative ...
Plesk CVE-2026-58046 | Critical Security Vulnerability & Fix Guide
A critical security update has been released for Plesk
Plesk has disclosed and patched a high-severity security vulnerability tracked as CVE-2026-58046. The issue affects the XML-RPC API and impacts all Plesk versions prior to 18.0.79.4.
The vulnerability allows an authenticated user with low privileges to exploit a SQL injection ...
Windows and Linux Server Hardening Checklist
What Is Server Hardening?
Server hardening is the process of securing a server by reducing its attack surface and limiting opportunities for unauthorized access, exploitation, or service disruption.
The goal is not to lock down a system so aggressively that normal operations become difficult. Instead, server hardening focuses on ...
What Is a Hardware Firewall and How Does It Protect Your Network?
Understanding Hardware Firewalls
As cyber threats continue to evolve, organizations need security controls that can protect their infrastructure before malicious traffic reaches servers, applications, or users. One of the most effective ways to accomplish this is through a hardware firewall.
A hardware firewall is a dedicated physical device positioned ...
How to Add a Let’s Encrypt SSL on VPS
Why Your VPS Needs an SSL Certificate
An SSL certificate encrypts communication between your website and its visitors. This protects sensitive information such as login credentials, contact form submissions, payment details, and customer data from interception.
Modern web browsers also display security warnings on websites that do not use ...
How to Protect SSH Port: Ultimate Security Guide
How to Protect SSH Port is among the crucial measures you must take to protect your server from malicious attackers. Considering that SSH is always targeted by brute-force attacks by hackers, exposing your system can pose some considerable risks. In this definitive guide on how to secure ...
SSL for IP Address: Easy Setup & Secure Access Go
IP Address SSL is a highly effective but frequently underutilized method that allows you to protect direct connections to a server without using a domain name. For more and more programmers and network engineers seeking to streamline implementation and increase flexibility in terms of controlling their systems, ...
Best Self-Hosted Open-Source VPN Solutions
Open-source VPNs have emerged as the most popular option for those who are concerned about their privacy, openness, and complete control over their network infrastructure. With a self-hosted VPN, you don’t have to depend on third-party VPN services, and you have the flexibility to configure your security ...
Hackers Actively Exploiting telnetd Vulnerability for Root Access
A critical security flaw in the GNU InetUtils telnetd server (CVE-2026-24061) is being actively exploited by attackers worldwide. The telnetd vulnerability allows unauthenticated attackers to bypass standard login procedures and gain root access on affected Linux systems. Researchers have observed coordinated campaigns targeting the Telnet service, highlighting ...