Error: INVALID_PORT: bad port (most likely missing protocol), correct s

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Error: INVALID_PORT: bad port (most likely missing protocol), correct s

添加firewalld时报错：
/ i1 }7 s$ h4 C4 ?* efirewall-cmd --add-port=3306
Error: INVALID_PORT: bad port (most likely missing protocol), correct s
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0 z$ R: e3 R) j3 F- p: }' h是因为没有添加协议，整忙了发现忘记添加tcp或者udp协议了：
3 D" Z% r0 W0 k' t7 N9 H( k' K正确的方法：
firewall-cmd --add-port=3306/tcp

, ], c: S9 k! w显示为success
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