Category: Articles

Computer (3)
Open Source (313)
Security (30)
Server (5)

How to Configure DNS Records for a Mail Server

How to Configure Domain DNS for Mail Servers (MX Record Setup) Using Wanwang as an Example: Step 1, add an A record: mail.domain.com
Add an A record Step 2, set the MX record to the newly created mail.domain.com with a priority of 10
Set up MX mail exchange This completes the domain’s MX record configuration. Next…

Top 10 Security Mistakes System Administrators Must Avoid

Security isn’t just a technical issue 鈥?it’s a people problem. Many low-level mistakes are surprisingly often made by those who should know better: system administrators or other IT staff. Intermedia’s 2015 Insider Risk Report found that IT professionals are the most likely to carry out&ldq …

Open-Source Network Forensics Tool Xplico

Xplico鈥檚 goal is to extract internet traffic and capture the information contained within application data. For example, Xplico can extract email content (via POP, IMAP, SMTP protocols), all HTTP content, each VoIP access (SIP), FTP, TFTP, and more from pcap files, but Xplico is not a …

Microsoft Announces Azure Support for Debian

Despite strong opposition from many Linux users towards Microsoft, the company is actually a significant contributor to the Linux kernel. Although it once looked down on Linux, times have changed. In addition to recruiting open-source experts, the company has even contributed to the world’s most popular Linux derivative (Android …

Renowned Hash Cracking Tool Hashcat Goes Open Source

As the best GPU-accelerated hash cracking software available today, Hashcat is touted as the world’s fastest, “supporting up to 8 billion password guesses per second.” In the early hours of December 5 (Beijing time), Hashcat’s author “atom” announced the tool would go open-source. Hashcat is a GPU-based H …

How to Enable CPU Virtualization — Detailed Guide

Modern mainstream CPUs all support virtualization technology, but some computers ship with CPU virtualization disabled by default in the BIOS. So, how do we enable CPU virtualization? Let’s walk through the detailed steps below.  1. First, check whether your computer’s CPU supports virtualization technology…

How to Fix 404 Error for Chinese Tags in WordPress

Chinese tags in WordPress generally won’t cause 404 errors on Linux, but they might on Windows systems. No way around it—this still needs to be fixed! Besides, the VPS Guide site has already been upgraded to WordPress latest version 4.1, while most search results are still about version 3.0, and …