CentOS 7.9にTCPの443ポートを開放する
1.OSバージョンを確認
# cat /etc/redhat-release
CentOS Linux release 7.9.2009 (Core)
2.現在の設定を確認
# firewall-cmd --list-all public (active) target: default icmp-block-inversion: no interfaces: eth0 sources: services: dhcpv6-client http ntp ssh ports: 8080/tcp 21/tcp protocols: masquerade: no forward-ports: source-ports: icmp-blocks: rich rules:
3.即時反映
# firewall-cmd --zone=public --add-port=443/tcp success
4.恒久的な設定を反映
# firewall-cmd --zone=public --add-port=443/tcp --permanent success
5.リロード
# firewall-cmd --reload success
6.設定を再度確認
# firewall-cmd --list-all public (active) target: default icmp-block-inversion: no interfaces: eth0 sources: services: dhcpv6-client http https ntp ssh ports: 8080/tcp 21/tcp 443/tcp protocols: masquerade: no forward-ports: source-ports: icmp-blocks: rich rules: