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Linux servers are under nonstop pressure from brute-force attacks, scanners, botnets, and automated exploitation attempts. A basic firewall is no longer enough — you need fast automated blocking, clear rule control, and threat intelligence that helps you stop attackers earlier. We’re excited to announce Malware.Expert Firewall (MEF) — a free, ultra-lightweight Linux firewall and automatic … Read more
For years, CSF (ConfigServer Firewall & Security) has been a trusted tool in the sysadmin’s arsenal, particularly in hosting and control-panel environments. However, with the official discontinuation of ConfigServer in August 2025, CSF’s future as a standalone, maintained product has effectively ended. (Source) Since the shutdown, there has been confusion around possible successors. Some community … Read more
If your Exim mail logs show the following error: Access denied – Invalid HELO name (See RFC2821 4.1.1.1) This means that the sending server’s HELO/EHLO hostname is invalid or misconfigured according to the SMTP protocol requirements. What is HELO / EHLO? When an email server connects to another via SMTP, it introduces itself with the … Read more
Introduction Enabling an SSL Certificate in Magento stores secures customer data during transactions. This guide covers installing an SSL certificate in Magento and enhancing site security. If manual installation seems complex, Magento hosting services can assist with the setup. Managed hosting is recommended for Magento stores as experts handle server security and provide round-the-clock support. … Read more
Introduction This guide introduces you to the chattr command in Linux. While many Linux users know about file permissions, few discuss the additional control attributes offer. You can manipulate these attributes using the chattr command. What is chattr? The chattr command allows you to change file attributes on a Linux file system. These attributes can … Read more
Introduction We are thrilled to announce that cPGuard Web Security Suite 2 and cPGuard Lite 1 are now fully integrated with the Interworx control panel! This development elevates server security, offering a plethora of features right from automated malware scanning to a user-friendly dashboard. Let’s delve into why choosing cPGuard to safeguard your websites is … Read more
ModSecurity, an open-source web application firewall (WAF), provides valuable tools to defend web applications from a myriad of online threats. However, as is common with any complex tool, problems can sometimes arise. One such issue relates to the request body size, which can trigger an error if the data length exceeds the configured limit. The … Read more
Introduction A severe vulnerability has been detected in Essential Addons for Elementor (from 5.4.0 through 5.7.1), a WordPress plugin with over one million active installations. This flaw was patched on May 11, 2023, but due to its severity, we believe it’s essential to raise awareness and ensure all affected users have applied the patch. Details … Read more
The vulnerability – High severity vulnerability fixed in WordPress Elementor Pro plugin As many of you are aware already, there is a critical vulnerability reported in the WordPress Elementor Pro plugin, which is installed on millions of websites. Though they have already released a patched version already, there are still many websites left unpatched, and … Read more
ConfigServer Security & Firewall (CSF) has a function that allows it to import blocklists and save them to IPTABLES, which is the Linux firewall utility upon which CSF is based. Requirements First we recommended you install and enable IPSET to CSF Firewall. Also we need increasing the maxelem in csf.conf, if not we would see … Read more