hi mitang,
please use the below command to enable the ssh aceess to fiewall from your noc system
(here iam assuming your ip as 192.168.10.10 and this should be inyour inside zone of firewall).
use putty to connect through ssh
#ssh 192.168.10.10 255.255.255.255 inside
syntax:ssh {ip_address mask | ipv6_address/prefix} interface.
your second question is not clear.
rgrds
Naveen