Did you know when you press “cd -” you can back to previous directory? Here’s some example

linux01:/var/www/mywebsite$ cd /home
linux01:/home$ cd -
linux01:/var/www/mywebsite$

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If you’re using Ubuntu, the default install of Ubuntu can’t play movie file. ie .avi, .mpg, etc. You need to install an encoder.

$sudo aptitude install mencoder

Then you’re ready to play your movie files.

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Sometimes we — Sysadmin, need to see what is the content of mail in the queue. If you are using postfix, you can do

$sudo postcat -q 9B44FC820A

You can change 9B44FC820A with the queue number on your server.

Installing advanced category excluder. Done!

My office needs to buy an SSL Certificates. There are alot of options out there. From the cheap and pricey. After I googled alot, I found this two SSL Certificates provider. RapidSSL and GoDaddy. Here’s some of pros/cons I found:

RapidSSL Pros:
- Cheap
- One ROOT CA
RapidSSL Cons:
- Licensed only 1 server (You can buy addtional licenses though)

GoDaddy Pros:
- Cheap
- Unlimited Servers
GoDaddy Cons:
- Chained ROOT (Needs extra steps to install, but if you a geek, it’s no problemo)

Finally I choose GoDaddy. Because in modern browser GoDaddy’s SSL its already built-in.

I Think this is the time I’m back for blogging. I’m dedicating this blog for my experiences in OSS/Linux things. Hope this blog will help someone save few hours searching for solutions.

Thank you.

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