Firewalls have become an integral part of all corporate networks. They’re the first line of defense against attacks from outside network (Internet) and also the point of control to make sure internal users (employees) are using the Internet as they’re…
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Category: Security
Understanding Tunneling
Tunneling is a technology used to connect different computers and networks securely across the Internet. There’s a great introduction to Tunneling and it’s uses at Networking 101: Understanding Tunneling A tunnel is a mechanism used to ship a foreign protocol…
How to restore a hacked Linux Server
Marius Ducea has a great article on How to restore a hacked Linux Server. He provides a very practical baseline on how you should develop your own plan of action to restore a hacked Linux Server. These are the steps…
Ethereal on Mac OS X
With perfect password manager, I thought I had the complete set of tools in my Mac for getting things done. But today I realized, I’d overlooked ethereal. I use it sometimes and it’s a gem without which it would be…
Password Managers for OS X
I’ve switched to a Mac and it took quite some time for me to find an ideal password management tool. Of course OS X has an excellent KeyChain Access for password and other confidential information management. Also there are some…
I’ve switched to a Mac
I’ve been using PowerBook G4 as my production laptop for about a month. There had been some odd moments but overall it’s been a wonderful experience and definitely there’s no looking back. I’m glad that I’ve switched. Now my laptop…
Basic journey of a packet
Basic journey of a packet is an excellent article for anyone who’s curious about how things actually work in the Internet, specially for new network and system admins. The author has done a very good job in explaining how a…
How to break the Great Firewall of China
I know too well what the Great Firewall of China does. It blocks web sites containing banned words like “Falun Gong” and resets connections with your email servers if your email message contains similar banned words. Once I’d captured TCP…
Anti-spam company shuts down after DDoS Attacks
After being Spammed and Attacked, Blue Security has shut down its anit-spam service. According to the Netcraft’s Performance Chart Blue Security’s web site was unavailable for an extended period on Sunday and Monday, and again this morning. The founder of…
Workplace IT Security & Communications Solutions for Today’s Business
Today I attended a seminar called Workplace IT Security & Communications Solutions for Today’s Business organized by one of our technology partner. It was an interesting event where several networking vendors presented about the IT Security Technology and the latest…
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