5月 192015
参数
可选择加密算法和加密位数,可增加私钥密码,使用私钥是需输入私钥密码。
-b bits Specifies the number of bits in the key to create. For RSA keys, the minimum size is 768 bits and the default is 2048 bits. Gen- erally, 2048 bits is considered sufficient. DSA keys must be exactly 1024 bits as specified by FIPS 186-2. -P passphrase Provides the (old) passphrase. -t type Specifies the type of key to create. The possible values are “rsa1” for protocol version 1 and “dsa”, “ecdsa” or “rsa” for protocol version 2. -C comment Provides a new comment.
配置
主机A,生成密钥对
主机A,查看密钥信息
主机B,生成目录和文件并保存公钥
主机B,显示IP地址信息
主机A,使用SSH登录主机B,无需验证密码(用户密码和私钥密码)
主机A,首次SSH连接断开后,本地保存的主机B公钥信息