articles improvement ideas 
A few notes to self for things I'd like to work on when I find some time:
- write a bliki article for vnstat. It's very useful for tracking bandwidth usage, specially for dedicated server that don't have our (very cool) control panel bandwidth monitoring feature.
- continue the fail2ban article. I noticed many customers need such a tool and it would be great to make their lifes and our staff lifes easier by writing a full howto article.
- expand the "troubleshooting linux performance" article