Juniper SRX Firewall (services gateway) configuration

To get into operational mode:

% cli
user@host>

To get in configuration mode:

user@host> configure
Entering configuration mode

[edit]
user@host#

Set hostname

[edit system]
root# set host-name gateway0

Set domain name

[edit system]
root# set domain-name domain.tld

Allow SSH remote access

[edit system]
root# set services ssh

Define root password

root# set root-authentication plain-text-password
New password: