ssh 无密码登陆、执行命令

一般的ssh登陆都要求输入密码,一般采用的方式是建立SSH等效性,即ssh-keygen;ssh-copy-id

当某些情况下以上方式不适用的时候可以考虑如下方式:

采用命令sshpass传递密码

无sshpass命令的话可以先安装sshpass:yum install sshpass

英文HELP:

Usage: sshpass [-f|-d|-p|-e] [-hV] command parameters

  -f filename   Take password to use from file

  -d number     Use number as file descriptor for getting password

  -p password   Provide password as argument (security unwise)

  -e            Password is passed as env-var "SSHPASS"

  With no parameters - password will be taken from stdin


  -h            Show help (this screen)

  -V            Print version information

At most one of -f, -d, -p or -e should be used

使用:


sshpass -p 123456 ssh -o StrictHostKeyChecking=no [email protected] -- command


StrictHostKeyChecking=no #不进行公钥认证,即第一次ssh登陆的时候选yes/no?

以上方法对于周期执行简单的命令还是可的



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