Install ‘echoping’ in order to check http latency. If you are running on debian/ubuntu machine, simply run below command to install echoping: chenhow@chenhow-laptop:~$sudo apt-get install echoping To check latency, chenhow@chenhow-laptop:~$echoping -v -h index.php blog.chenhow.net:80 Output:

By using .htaccess files, we can control access to our web content by allowing/blocking certain user or ip addresses to access. You may ask why do we need that, if you can do the same by using options like “order, limit” to restrict ip addresses and user actions in httpd.conf. Fair enough, but there is [...]

Yesterday I saw a big letter with my name put on the kitchen table. Guess what, I finally/officially a CCNA certified engineer. The CCNA certification kits looks really cool. Well, now I must focus on my next certification, either RHCE/CISSP. Hard work, hard work..