開啓防火牆後,確認ssh端口是否開放(firewall-cmd --query-port=22/tcp
),若未開放則開放。(firewall-cmd --permanent --add-port=22/tcp``firewall-cmd --reload
)
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開啓防火牆
service firewalld start
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查看3306端口是否開放
firewall-cmd --query-port=3306/tcp
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關閉3306端口
firewall-cmd --permanent --remove-port=3306/tcp
firewall-cmd --reload
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設置特定IP可以訪問3306端口
firewall-cmd --permanent --add-rich-rule="rule family=ipv4 source address=x.x.x.x port port=3306 protocol=tcp accept"
firewall-cmd --reload