- Stateful firewall
- IPSec VPN
- SSL VPN
- Intrusion Prevention Systems
- Antivirus (anti-spyware, anti-phishing, anti-adware)
- Anti-spam
- And Web filtering
Sunday, December 20, 2009
Unified Threat Management
Sunday, December 06, 2009
Technology and Solar Power
Thursday, December 03, 2009
Cyber-crime on an exponential rise
Saturday, November 28, 2009
Adobe annoyance with 64bit
Tuesday, November 17, 2009
Cyberwarfare is upon us!
Well, OK, maybe not exactly an atomic bomb and I'm just exaggerating a little bit. But I always pay attention to news of this kind and it came as no surprise to me when I came across an article on this subject on bbc's website this morning that nations of the world are constantly engaged in cyberwarfare. Am I shocked? Not exactly! This is exactly why I chose to become a security specialist. I love living on the edge in anticipation of the inevitable and being able to use technology as the tool to put up a fight.
It is said that in April 2009, China and Russia infiltrated the US electric power grid. The effect of what could happen can be seen in Bruce Willis' last Die Hard movie, Live Free Die Harder, where power outages were used to bring chaos and confusion that lead distraction for the government against a bigger attack, take down the government. Thank goodness, Bruce Willis came to the rescue in that movie. But if this kind of cyber-attack happened in reality, the effect will be dire.
The article went further to talk about the biggest problems with cyberwarefare - Understanding the motives of the attacker and knowing exactly who attacker is at the zero hour. This why it's best to do the best to avoid attacks and remain proactive than taking a reactive approach. I was asked once during an interview for a Security Architech position with a police department in Ontario what I would recommend for an Intrusion Detection System (IDS). My answer was, "why talk about IDS when you should be focusing on IPS (Intrusion Prevention System)". But they still insisted that I talk about IDS. The point is that this kind of attitude and reasoning is going to have to change to mitigate impact of attacks. Implement solutions and controls that will protect the infrastructure rather than just implementing solutions that audit attacks when the damage is done. After all, prevention is ALWAYS better than cure.
Friday, November 06, 2009
Accelerating the Internet
This training has helped me understand TCP's behaviour when transversing devices such as routers, switches and firewall.
WAN Optimization basically solves these problems
- Enable effective branch consolidation*
- Cut bandwidth costs*
- Improve application performance*
- Make IT more effective while spending less*
*Riverbed Technology Overview
I will update this after the training comes to a close.
Friday, October 23, 2009
Cloud computing - Reality and Visions
Cloud computing is now the current 'buzz word' out there in the Enterprise world. Every major vendor talks about their strategy to provide or enable cloud computing and how it is the next best thing. But the question is; Is cloud computing a new thing? Absolutely NOT! In essence, cloud computing is no more than a data centre that resides outside an enterprise infrastructure. This is not a new concept and has actually been deployed for sometime now. The only difference now is that with technologies such as virtualization and enhanced Internet bandwidths now provide good backbone to host services off-site for enterprise. This now becoming what we know as utility grid-computing. Enterprises are charged based on usage of the service. Usage is monitored and metered off and translated into a bill - Just as we have with traditional electricity and gas bills.
Benefits
- Web enabled software services is accessed via web from anywhere at anytime
- No need to have experts in house to maintain the infrastructure
- Reduced cost of purchasing hardware or building the infrastructure
- Scalability or capacity planning becomes a 'no' issue
Things to consider
- Legal issues - An enterprise must be fully aware of the laws in the country where their information resides. Every country has different regulatory laws that govern information, who can access it and what it can be used for. This becomes even more of an ensure in today's global market.
- Encryption technologies - This is another important point. It simply touches on how a country may allow a particular encryption technology that may be illegal in another country. For instance, if an enterprise is using a provider that's based in a different country and consequently using an encryption technology which may be perfectly legal in their region, the enterprise may actually face legal issues if the encryption technology used is not allowed in the country which they operate. This issue is common with 'Key strengths' used to encrypt data. Read more about this here - http://en.wikipedia.org/wiki/Electronic_Communications_Privacy_Act
- Cloud computing does not translate to freedom from Operating Systems - Contrary to what you may have read in several articles that translate the term 'cloud' into a world without the need to no longer use an operating system, This is not yet technically viable. Operating systems are not just used to access the Internet. If you want to print documents to your local printer, upload pictures from an imagine device, listen to CDs or watch DVDs; you still need some form of Operating System to coordinate all those functionalities. So don't start planning on ditching your PC or MAC support contracts just yet - they are still very much a part of this cloud equation!