TCP wrappersãå©ç¨ãã¦SSHã«ãã°ã¤ã³ã§ããIPãå¶éãã¾ããSSHãä¾ã«ãã¦ãã¾ãããFTPãªã©ãä»ã®ããã»ã¹ã«ãããã®ã§ãå¯è½ã§ã 以ä¸ã®ãã¡ã¤ã«ãè¨å®ãã¡ã¤ã«ã§ãã /etc/hosts.denyã(æå¦ããIP/ãã¹ããè¨å®) /etc/hosts.allowã(許å¯ããIP/ãã¹ããè¨å®) TCP wrappersã¯ãã¾ãhosts.denyã®æå¦è¨å®ãèªã¿ã ãã®å¾hosts.allowã®è¨±å¯è¨å®ãèªã¿ã¾ãã ã§ãã®ã§è¨å®ã®å®ç³ã¯ã hosts.denyã§ãã¹ã¦ã®æ¥ç¶ãæå¦ããå¾ã«ã hosts.allowã§è¨±å¯ãã¦ããæµããä¸è¬çã§ãã /etc/hosts.denyã§SSHã¸ã®æ¥ç¶ããã¹ã¦æå¦ ã¾ãã¯/etc/hosts.denyã§ãã¹ã¦ã®æ¥ç¶ãæå¦ãã¾ãã vi /etc/hosts.deny ã©ãã§ãããã®ã§ä»¥ä¸ã®è¡ã追å sshd : a
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