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@TakahiroSakoda(Sakoda Takahiro)

firewallで固定IPのsshのみを接続許可する

Posted at 
//sshを削除
firewall-cmd --permanent --remove-service=ssh
//特定IPからの接続を許可
firewall-cmd --permanent --zone=public --add-rich-rule="rule family="ipv4" source address="許可するIP" port protocol="tcp" port="22" accept"
//リロード
firewall-cmd --reload

適宜ポート変更すれば、他のサービスでも使える

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