I’m in Guangzhou, China today to reinstall one of our Linux SMTP Server. I’ve installed CentOS 3.x with software mirroring. It’s pretty straight forward to make the Linux Software Raid partition during the installation but by default the system will…
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Category: Admin
DNS Amplification Attack
Recently a new type of DNS attack have been discovered. Attackers are exploiting the recursive name servers to amplify the DDoS attacks by utilizing IP spoofing. If you want to know the very details of how this attack works then…
Samba 4 Technology Preview 2 released
Samba 4 Technology Preview 2 is released today. Technology Preview 1 was released on January. Samba is an open source software that allows Unix/Linux system to serve as a file and print server in Windows network. The main feature in…
10 steps to a better IT support process
If you’re working in IT Support for few years then most probably you’re already following similar steps. Geeks are Sexy have an excellent article 10 steps to a better IT support process. It’s refreshing and should be helpful to novice…
Sendmail Remote Signal Handling Vulnerability
A serious flaw has been found in Sendmail that could allow an attacker to take control of the SMTP server running vulnerable version of the software. A remote attacker could send malicious data at certain time intervals, which can corrupt…
Web Traffic increased 70 times
I was awestruck by the increase of traffic in my blog after posting WinXP and OSX dual boot in MacBook Pro. I did expect some extra traffic, but didn’t have a clue that it would be this huge. It’s great…
Wiki Installation and Configuration
After reading Time Management for System Administrators by Thomas A. Limoncelli I wanted to try wiki system (one of the productivity tools he highly recommends) within our office because keeping the internal information up-to-date is becoming pretty difficult. Currently not…
WordPress 2.0.2
WordPress development team has released WordPress 2.0.2. It contains several security and bug fixes. They’ve addressed unannounced XSS issues privately discovered and reported to the WordPress team. If you are using WordPress 2.0.1 I highly recommend you to upgrade it.…
Performancing Metrics: Statistics for blogs
Performancing.com have released a very cool service called Performancing Metrics. It is a statistics service aimed at professional bloggers. It’s packed with features that bloggers will definitely find very useful. It’s in beta and free for public. The setup takes…
Astaro Security Gateway: Integrated Security Solution
One of our customer was interested in a security solution that was tightly integrated, easy to manage and cost effective. After researching for a while I found that Astaro Security Gateway software (formerly Astaro Security Linux) was one of the…
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