Security 401.4 – Secure Communications Day 4 was Crypto day. Brutal for those who are first timers and definitely not a breeze even if you’re a seasoned sysadmin. How many professionals even know the difference between Asymmetric and Symmetric encryption?…
Security 401.3 – Internet Security Technologies On the third day of class, we started going into some of the actual technologies used in implementing security. The first topic covered is attack strategies and mitigation. Know thy enemy – Sun Tzu…
Security 401.2 – Defense In Depth Some students coming out of day one might be relieved to find that day two is nothing like day one. Day two starts off with talking about risk and policy. “Layers 8 & 9…
Security 401.1 – Networking Concepts First day of class was all about the fundamentals of networking. Arguably it is one of the more technically challenging days of the six day course – for those who don’t have a background in…
Arriving at Las Vegas & Caesars Palace The last time I was at Vegas was almost 4 years ago. Quite a few things have changed. Notably the airport had been renovated. Gone was the 80s looking baggage pickup area. The…
SEC401: Security Essentials Bootcamp Style It’s my first time enrolling on a SANS course. I decided to take the SEC401 Security Essentials bootcamp in Las Vegas this year as I thought it would give me an all round entry level…
Here’s the RHCSA Exam Cheat Sheet Part 3 EX200 Cheat sheet part 3: Service Management The service resides under /etc/init.d start a service at boot chkconfig service on or chkconfig –level135 service on list a service chkconfig –list GUI tool…
Cheat Sheet Part 2 Here’s the RHCSA EX200 cheat sheet part 2. Enjoy: Software Management To search a package yum search package-name To display info of a package yum info package-name To install a package yum install package-name To remove…
Back in the day Back in the day when I did my RHCE exam on on Enterprise Linux 4, the RHCSA was a certification that would be granted if you only passed the first part of the RHCE exam but…
What is CCNA? CCNA stands for Cisco Certified Network Associate. It is a widely popular certification program aimed at Network Engineers and Network Administrators with 1-3 years of experience. In the old days, the CCNA use to be a single…