A new vulnerability has been found that potentially affects most versions of the Linux and Unix operating systems, in addition to Mac OS X. Known as the “Bash Bug” or “ShellShock,” the GNU Bash Remote Code Execution Vulnerability could allow an attacker to gain control over a targeted computer if exploited successfully. And because Bash is everywhere on Linux and Unix-like machines and interacts with all parts of the operating system, everyone anticipates that it will have lot of repercussions. How does Shellshock work? Shellshock exploits a flaw in how Bash parses environment variables; Bash allows functions to be stored in environment variables, but the issue is Bash will execute any code placed after the function in the environment variable …
General Topics
Email signatures are commonly used to display the sender’s name, designation, company information, contact details, website links, and branding elements at the end of an email. A professional email signature helps create a strong identity and improves communication credibility. Adding an Email Signature in Different Mail Clients allows users to automatically append their signature to every outgoing email instead of manually typing it each time. Most webmail platforms and email applications support both plain-text and HTML email signatures. This guide explains how to configure email signatures in different mail clients and webmail applications. Why Email Signatures Are Important Using a professional email signature offers several benefits: Some email clients also support: Email Signature in Different Mail Clients and Webmail Below …
WordPress is the most popular blogging and CMS system on the Internet which makes it a favorite target for hackers. Having a WordPress site means that you have to take some extra efforts in order to protect your and your visitors data. Here is a summary of the best practices for securing a WordPress, that will help you do that. Keep your WordPress site and plugins up-to-date Protect your WordPress Admin Area Don’t use the “admin” username Securing wp-admin Add a Unique Database Prefix and Authentication Keys Hide your username from the author archive URL Limit Login Attempts Secure accessing via FTP Wise selection of themes/plugins Ensure your computer is free of viruses and malware Monitoring Keep a backup
Installation of PECL_HTTP Extension From Source Code in Custom PHP in Cloudlinux
Suppose that your Linux server has PHP version selector installed and configured. As you know alternative php5.x (while using PHP version selector) versions should load /opt/alt/php5x/etc/php.ini file and scan /opt/alt/php5x/etc/php.d directory for modules:: ==== Configuration File (php.ini) Path /opt/alt/php5x/etc Loaded Configuration File /opt/alt/php5x/etc/php.ini Scan this dir for additional .ini files /opt/alt/php5x/etc/php.d additional .ini files parsed /opt/alt/php5x/etc/php.d/alt_php.ini ==== Those are default locations for alt-php. Steps in installing pecl http package in cloudlinux platform: 1. Download the pecl_http package from pecl website http://pecl.php.net/package/pecl_http and compile it. #wget http://pecl.php.net/get/pecl_http-2.0.4.tgz 2. Extract the package #tar -xvzf pecl_http-2.0.4.tgz 3. Now run the ‘phpsize’ command. The phpize command is used to prepare the built environment for a PHP extension #phpize 4. Proceed with the installation of …
SSH (Secure Shell) is a network protocol that allows secure remote access to a Linux server. Normally, users authenticate using a password when connecting via SSH. However, passwordless authentication using SSH keys provides improved security and faster login access. This guide explains how to configure passwordless SSH login using PuTTY and PuTTYgen. What Is Passwordless SSH Login? Passwordless SSH authentication uses a public and private key pair instead of passwords: Once configured, you can log in securely without entering a password. Step 1: Download Required Tools Download the following utilities: Download the latest versions of putty.exe and puttygen.exe and launch PuTTYgen. Step 2: Generate SSH Keys Step 3: Upload Public Key to Linux Server Create the SSH directory if it …
Google has launched its new free tool called ‘Web Designer’ for building interactive HTML5 web sites and advertisements.This tool can be downloaded for Mac and Windows. It is a great means by which the advertisers can create HTML5 pages and animations very easily for mobile as well as PC. The best part about this latest release is that one can directly edit the source code in the editor which is built into it. The designers can later view the preview of their sites in the browser. One can further improve and adjust the site by exploring or even rummaging the JavaScript and CSS. With the help of Cascading Style Sheets 3, Web Designer is capable of developing three dimensional content. …
Bandwidth throttling is a deliberate technique used to control the amount of data that can be transferred over a network within a specific time period. It is commonly applied by internet service providers, hosting environments, firewalls, and applications to manage network congestion, maintain stability, and ensure fair usage of resources. While throttling is often misunderstood as general website slowness, it is important to distinguish intentional bandwidth limits from performance bottlenecks caused by inefficient code or server overload. What Is Bandwidth Throttling? Bandwidth throttling refers to the intentional limitation of upload or download speeds. This can occur at several levels, including the ISP, data center network, hosting server, or application layer. Throttling is typically implemented to prevent excessive resource consumption, reduce …
Network Monitoring witn Ntop
There are various types of network problems that occur in an organization,which results in inaccessible devices,performance degradation, etc.These can be classified as: Network Hardware failure : Includes faulty devices like switches,Ethernet cards,improper cabling etc. Network configuration problems : Includes issues related to improper configuration of protocols Malicious code : Includes issues as a result of the presence of worms/viruses on the network In order to troubleshoot network problems from scratch you need to start checking by hardware – ie,physically check network cabling,network cables crossovers over electric cables,quality of switches routers etc. If the problem lies in the hardware this method of tracking is reasonably straightforward.
A completely frozen Linux system can be frustrating. The mouse cursor does not move. Keyboard shortcuts like Ctrl + Alt + F1 or Ctrl + Alt + Backspace do not respond. Even the Num Lock key may stop toggling. In such situations, most users force a hard reset. However, a hard reboot can lead to data corruption or filesystem damage. There is a safer way to reboot a locked Linux system using the Magic SysRq key. This method allows you to properly terminate processes, sync disks, and safely reboot the machine to reduce the risk of data loss. What Is the Magic SysRq Key? The Magic SysRq key is a Linux kernel feature that allows you to send low-level commands …
Choosing the right hosting control panel is an important decision for hosting providers, businesses, and system administrators. Among the many options available, cPanel and Plesk continue to dominate the web hosting industry. Both are mature, reliable platforms, but they are built with different use cases and operating environments in mind. Understanding Hosting Control Panels A hosting control panel is a web based interface that simplifies server and website management. It allows administrators and end users to manage domains, email accounts, databases, DNS records, backups, and security settings without working directly from the command line. A well-chosen control panel improves efficiency, reduces errors, and makes server management more accessible. cPanel Overview cPanel is one of the most widely used hosting control …