How does a wireless LAN (WLAN) works? What are its benefits and limitations and what are the latest innovations in this area?

I wanted to know if the Pandora FMS: Flexible Monitoring System works in a Solaris and HP-UX system, also how much nodes can it reach or handle in a single server? Is it really worth it, in creating graphical results?

I have been reading some good reviews about Nagios but I still wanted to hear it directly from users from this website and what are their personal insights regarding this program.

Can you site one of its best features and how is it being maximize in networking?

I wanted to ask if you've heard or know about ZABBIX? I wanted to get your feedbacks regarding its features and usability in different network severs. Also if you can recommend some online guides and resources that I can compile for my study. Thank you.

What are the most common and useful Unix networking commands for routing? What is the best way to familiarize myself in its functions and usage?

Hello Guys!

Can you suggest the best plug-ins that you are currently using for Wordpress 3 and Wordpress MU? I would appreciate to hear your feedbacks. I am starting to make a blog about affiliate marketing and would want to strengthen my blog's advertising powers by adding tested plug-ins that bring good results. Thank you.

What does POP3 and IMAP4 stands for?

What are its relevance in emails and how do these two function?

Are all emails integrated with these two, or only one of them is being used per e-mail type or server?

Is there a way for me to recall sent messages in yahoomail and Hotmail?

I've accidentally sent a confidential e-mail to some wrong recipients and I wanted to make sure that it would be deleted in their system.

If I cannot recall them, is there some other way to automatically delete those sent e-mails in their inbox? 

Aside from POP3 and IMAP4, are there any other protocols used in regular e-mail clients in retrieving e-mails?

I am just curious. Thank you.

Hi, I want to upgrade my router with Draytek Vigor 2850n. Can I use Draytek Vigor 2850n as my access point  for my old router?