Bash/Network
# show config all interface
ifconfig
# see ip add eth0 interface
ip a show eth0
# to turn off eth0 interface
ifdown eth0
# to turn on eth0 interface
ifup eth0
Specific Port Enable
firewall-cmd --zone=public --permanent --add-port=11100/tcp
firewall-cmd --zone=public --permanent --add-port=1521/tcp
firewall-cmd --zone=public --permanent --add-port=3306/tcp
firewall-cmd --zone=public --permanent --add-port=5432/tcp
firewall-cmd --reload
netstat
Range of Port Enable
firewall-cmd --zone=public --permanent --add-port=22200-22290/tcp
firewall-cmd --zone=public --permanent --add-port=55500-55590/tcp
firewall-cmd --zone=public --permanent --add-port=11110-11119/tcp
firewall-cmd --reload
netstat