3 interfaces:
1- management usually fxp0 ( in this case ge-0/0/2) 192.168.70.21/24
...
3- untrusted zone: ge-0/0/0 1.2.3.21/24
Basic Configuration for management in vSRX1:
set system host-name vsrx1
set system services web-management http interface ge-0/0/2.0
#Add the IP@:
set interfaces ge-0/0/0 description "to unstrusted zone"
...
set security zones security-zone trust host-inbound-traffic system-services ping
Basic Configuration for management in vSRX2:
root@vsrx2> show configuration | display set
...