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sudo systemctl status firewalld

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sudo systemctl start firewalld

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sudo systemctl stop firewalld

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sudo systemctl disable firewalld

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sudo systemctl enable firewalld

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sudo firewall-cmd --list-all

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sudo firewall-cmd --add-port=80/tcp --permanent   # ÔÊÐí»á¼û80¶Ë¿Ú
sudo firewall-cmd --reload                        # ÖØÔØ·À»ðǽ¹æÔò

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sudo firewall-cmd --add-source=192.168.1.100 --permanent   # ÔÊÐíIPµØµãΪ192.168.1.100µÄÖ÷ʱ»ú¼û
sudo firewall-cmd --reload                                 # ÖØÔØ·À»ðǽ¹æÔò

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sudo firewall-cmd --add-source=192.168.1.0/24 --permanent   # ÔÊÐí×ÓÍøΪ192.168.1.0/24µÄÖ÷ʱ»ú¼û
sudo firewall-cmd --reload                                  # ÖØÔØ·À»ðǽ¹æÔò

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sudo firewall-cmd --add-service=http --permanent   # ÔÊÐí»á¼ûHTTPЧÀÍ
sudo firewall-cmd --reload                          # ÖØÔØ·À»ðǽ¹æÔò

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sudo firewall-cmd --add-protocol=icmp --permanent   # ÔÊÐí»á¼ûICMPЭÒé
sudo firewall-cmd --reload                          # ÖØÔØ·À»ðǽ¹æÔò

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sudo systemctl stop firewalld        # ¹Ø±Õ·À»ðǽ
sudo systemctl disable firewalld     # ½ûÓ÷À»ðǽ

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sudo systemctl start firewalld       # ·­¿ª·À»ðǽ
sudo systemctl enable firewalld      # ÆôÓ÷À»ðǽ

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sudo firewall-cmd --add-rule=...     # Ìí¼Ó¹æÔò
sudo firewall-cmd --remove-rule=...  # ɾ³ý¹æÔò

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sudo firewall-cmd --reload            # ¸üзÀ»ðǽ¹æÔò

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