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Linux server monitoring dashboard showing I/O wait and disk bottlenecks
Linux

How to Troubleshoot High I/O Wait in Linux

by SupportPRO Admin May 23, 2026
written by SupportPRO Admin

Linux servers can handle thousands of operations every second. However, they can still slow down when storage devices become overloaded. One of the clearest signs of a storage problem is high I/O wait. When I/O wait increases, applications respond slowly, backups take longer, and users may notice delays. This guide explains what I/O wait is, how disk bottlenecks occur, common symptoms, monitoring tools, and practical ways to troubleshoot and optimise disk performance in Linux environments. In this guide, you’ll learn: What Is I/O Wait in Linux? I/O wait shows how long the CPU spends waiting for storage operations to finish. These operations usually involve disks such as HDDs, SSDs, or network storage devices. In Linux system monitoring tools, I/O wait …

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May 23, 2026 0 comments
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How to Choose Server Infrastructure for Hosting Companies
Business

How to Choose the Right Server Infrastructure for a Growing Hosting Company ?

by Ardra Shaji May 19, 2026
written by Ardra Shaji

Why Infrastructure Decisions Matter ? Running a hosting company becomes more challenging as your business grows. In the beginning, managing a few customers and servers may feel simple. However, your server infrastructure is crucial to maintaining seamless operations as more clients join, websites receive more traffic, and expectations rise. The performance of your hosting services is directly impacted by the infrastructure you select. Faster servers enable websites to load more quickly, which increases customer satisfaction. A scalable setup enables you to handle more customers without constant upgrades or disruptions. Dependable infrastructure minimizes downtime, ensuring your clients’ websites remain online when it matters most. All of these factors influence customer trust and long-term retention. Inadequate infrastructure selection can result in sluggish …

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May 19, 2026 0 comments
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Build a Server Management Service as a Revenue Stream
Businessserver management

How to Build a Server Management Service as a Revenue Stream for Hosting Businesses

by Ardra Shaji May 16, 2026
written by Ardra Shaji

Today, many businesses rely on servers to run websites, applications, and online services, creating a strong opportunity for hosting companies to expand into server management as a recurring revenue service. Instead of generating one-time infrastructure sales, server management provides predictable recurring revenue through ongoing support, maintenance, and optimization. By keeping client servers secure, stable, and high-performing, hosting providers can build long-term customer relationships while creating a reliable new income stream. 2. What Is a Server Management Service? A server management service means taking care of a server on behalf of a customer so that their websites, applications, or online systems run smoothly without technical problems. Typically, the service includes keeping an eye on server performance, installing updates, resolving issues, enhancing …

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May 16, 2026 0 comments
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Banner about recent cPanel CVEs to know in 2026, with bullet points on vulnerabilities and protections.
General TopicsSecurityServer SecurityTroubleshooting

Massive cPanel Security Flaws in 2026: What Admins Need to Know

by SupportPRO Admin May 16, 2026
written by SupportPRO Admin

2026 hasn’t been kind to cPanel environments so far. A few serious vulnerabilities have already forced hosting providers to patch quickly, and in some cases, restrict access to WHM entirely until fixes were applied. Since cPanel & WHM is used on a massive number of shared hosting servers, even a single exploit ends up being a widespread problem pretty fast. CVE-2026-41940 — the one everyone kept talking about The main issue that stood out this year was CVE-2026-41940. It’s an authentication bypass in cPanel & WHM. In simple terms, it meant attackers could potentially reach cPanel or WHM without having valid login credentials in some cases. That alone is enough to make it critical, especially because WHM gives full server-level …

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May 16, 2026 0 comments
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Banner announcing CVE-2026-42945: NGINX Rift Vulnerability Explained with data-center visuals in blue and yellow text
SecurityServer SecurityTechnical ArticlesTroubleshooting

Massive NGINX Security Flaw Discovered: Understanding CVE-2026-42945

by SupportPRO Admin May 16, 2026
written by SupportPRO Admin

The internet depends heavily on web servers and reverse proxies to deliver websites, APIs, and cloud applications securely and efficiently. One of the most widely used technologies in this space is NGINX, trusted by enterprises, startups, cloud providers, and DevOps teams worldwide. In May 2026, cybersecurity researchers disclosed a critical vulnerability named NGINX Rift, tracked as CVE-2026-42945. What makes this discovery especially alarming is that the flaw reportedly remained hidden inside the NGINX codebase for nearly 18 years before being identified. The vulnerability affects the ngx_http_rewrite_module and can potentially allow attackers to crash services or execute malicious code remotely under specific conditions. Because NGINX powers a significant portion of internet-facing infrastructure, the vulnerability immediately attracted attention from security teams, cloud …

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May 16, 2026 0 comments
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Vulnerability of cPanel & WHM / WP2
Security

Vulnerability of cPanel & WHM / WP2 (Security: CVE-2026-41940)

by Ardra Shaji May 11, 2026
written by Ardra Shaji

Overview of the Vulnerability This vulnerability in cPanel & WHM is an authentication bypass flaw that can allow an attacker to gain full administrative access without requiring a valid username or password. Under normal conditions, cPanel authentication follows a secure login flow. However, this vulnerability disrupts that process by allowing manipulated session data to be trusted by the system. How cPanel Login Normally Works When a user logs into cPanel/WHM, the following process takes place: This ensures that only authenticated users can access administrative features. What Goes Wrong in This Vulnerability Due to the bug, an attacker is able to manipulate the session file during the login process. Instead of waiting for proper authentication, cPanel may incorrectly trust session data …

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May 11, 2026 0 comments
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Tux the Linux penguin stands in a high-tech control room with many monitors; a red banner reads 'DIRTY FRAG: UNIVERSAL LINUX LPE' and the subtitle 'A COMPLETE GUIDE TO UNDERSTANDING THE THREAT'.
LinuxOutsourced tech supportServer MonitoringServer Security

Dirty Frag: Universal Linux LPE

by SupportPRO Admin May 8, 2026
written by SupportPRO Admin

Dirty Frag is a vulnerability in Linux that allows an attacker to gain higher access or permissions than they are normally allowed on the system This vulnerability was disclosed earlier than planned due to an embargo break, which means information about the vulnerability was released publicly before the agreed-upon disclosure date. It’s a part of Linux kernel page cache exploits — following Dirty Pipe (2022) and Copy Fail (earlier this year). What are Linux kernel page cache exploits? The page cache in Linux is a system memory area where frequently accessed file data is temporarily stored.  It speeds up file operations because reading from memory is faster than reading from disk.  However, if an attacker can manipulate the page cache …

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May 8, 2026 0 comments
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Monitoring and Alerting for SSM Agent Health
AWSTechnical Articles

How to Monitor and Alert SSM Agent Health with AWS Config, EventBridge, and Lambda

by Ardra Shaji May 8, 2026
written by Ardra Shaji

Managing EC2 instances at scale requires ensuring that all instances are properly configured and connected to AWS Systems Manager (SSM). Issues like missing or non-responsive SSM Agents and unmanaged instances can create operational gaps and disrupt automation. To solve this, we can use AWS Config, Amazon EventBridge, and AWS Lambda to build a monitoring and alerting system that continuously checks compliance, detects SSM Agent health issues in real time, and triggers alerts or remediation – improving visibility, security, and control across your AWS environment. A. Checking EC2 Instances for SSM Agent Health Issues Before implementing monitoring, first log in to the AWS Console and validate your EC2 environment for the following conditions: Architecture Flow for Monitoring & Alerting B. Prerequisites …

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May 8, 2026 0 comments
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Blue molecular icon next to the text 'xmlrpc.php' on a pale yellow background.
Technical ArticlesTroubleshootingWordPress

XML-RPC in WordPress: What It Is, Security Risks, and How to Disable It Safely

by Ardra Shaji May 7, 2026
written by Ardra Shaji

xmlrpc.php is a core WordPress file that enables remote communication with your website through the XML-RPC protocol. It allows external applications and services to interact with your site without needing direct access to the WordPress dashboard. In earlier versions of WordPress, XML-RPC was disabled by default. However, starting from version 3.5, it has been enabled by default to support features like integration with the WordPress mobile app, allowing it to communicate seamlessly with WordPress installations. What xmlrpc.php Does Originally introduced to support remote publishing, it allows: Security Risks of xmlrpc.php While useful, it’s also a common attack vector: 1. Brute Force Attacks Hackers use xmlrpc.php to bypass security measures. The file enables attackers to try hundreds of password combinations with …

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May 7, 2026 0 comments
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Data Centre vs Data Management
Business

Data Center vs Data Management: A Clear Guide for Modern Business

by Anjali Sindhu May 5, 2026
written by Anjali Sindhu

In the modern era, a company’s performance depends heavily on its ability to store, manage and handle information. The concepts of Data Center Management and Data Management tend to be often perceived as the same thing, but actually represent something quite different. It becomes important for businesses to comprehend the essence of these two concepts. Data Center Management Data center management is the process of managing and maintaining both the physical and virtual facilities used to store and process data. These include: In essence, it concerns the location and methods for storing and processing data. Facility management involving hundreds of computers, making sure the system is up and running and dealing with any issues of hardware failure, falls under Data …

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May 5, 2026 0 comments
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  • CVE-2026-65643: cPanel Domain Parking Vulnerability and Security Patch Guide
    A newly disclosed cPanel security vulnerability deserves immediate attention from anyone operating a cPanel-based hosting environment.CVE-2026-65643 affects cPanel & WHM’s domain parking functionality. According to cPanel’s August 27, 2026 security…
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    For hosting companies, technical support is usually seen as a cost centre. Customers get in touch with the support team whenever their websites go down, the servers become slow, or…

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