Linux Administration And Management

Linux memory management and context switching calculations

We are doing a project in Linux and I need some help about Linux memory management: How it is done? Also, how is context switching is calculated for single process?

How to : Find last login year for user in Linux and Unix platform

Thanks AVKlinux

How to work two Linux gateway firewalls in a same network?

How to work two linux gateway firewall in a same network? Would u tell me please.

Linux email server error from Gmail

My e-mail server is getting a error response when sending mail to gmail accounts: status=deferred (host gmail-smtp-in.l.google.com[72.14.205.114] said: 451 4.5.0 SMTP protocol violation, see RFC 2821 s12si416928qbs.9 (in reply to end of DATA command)) What is it, and why this problem is...

tar.gz size

i want to create a tar.gzcompressed file of 1 GB dat a ,what will be the tar .gz size of 1GB data

red hat linux what is difference between grub.conf and lilo?

what is difference between grub.conf and lilo?

Are there any issues to be concerned with desktop Linux deployment ?

I am in the process of promoting Ubuntu Linux for desktop computer users. I am concerned with the availablity of drivers for many of the external units that most people wish to connect to their PCs. Is this an issue to be concerned with before progressing ?.