Answer Posted / manoj

Iptable is filtering tool, check point, can create natting
(Source nat & destination nat), Inbound, Outbound Security,
Able block & allow port forwording, block or open a port,
block & allow service for specific domain & for
user,Maintain firewall security as well.

What are system calls used for process management in linux?

583

Explain process management system calls in linux?

542

what are different ways the context switch happens from user to kernel space or vice-versa ?

2138

I would like to know whether Simado and Setu products are they EPBX or not ?

1926