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: Network
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…
Bill Gates on Letterman Show and Jon Stewart on Net Neutrality
You have to watch them, both are classic stuff…
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…
JAJAH – a new way to make free and cheap calls
I’m using SkypeOut to call my family and friends for quite some time because it’s cheap, convenient and recently the voice quality got better. But I think I found a better alternative, it’s called JAJAH, a new Internet Telephony service…
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…
Quick Links for Friday
Google Checkout is live. It’s a new service from Google that makes online shopping more convenient for shoppers and merchants. Shoppers can shop faster and merchants can integrate Google Checkout into their sites as an alternative payment processing method. Here…
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