centos防火牆firewalld相關指令

Centos7默認防火牆是firewalld,以下是相關命令

# service firewalld status; #查看防火牆狀態

# service firewalld start;  或者 #systemctl start firewalld.service;#開啓防火牆

# service firewalld stop;  或者 #systemctl stop firewalld.service;#關閉防火牆

# service firewalld restart;  或者 #systemctl restart firewalld.service;  #重啓防火牆

# systemctl disable firewalld.service#禁止防火牆開啓自啓

# systemctl enable firewalld#設置防火牆開機啓動

# yum remove firewalld#卸載firewall

# firewall-cmd --query-port=80/tcp  #查詢端口號80 是否開啓

#firewall-cmd --zone=public --add-port=80/tcp --permanent 開啓端口