SSH Key Password-free authentication distribution, management, backup

Distribute:

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A:

Ssh-keygen (generates a secret key with RSA or the-T DSA is generated with DSA)

Return

Ssh-copy-id-i.ssh/id_rsa.pub * * @Bssh-copy-id-i.ssh/id_rsa.pub **@c

After completion can be verified under

SSH **@b free-mssh **@c free-m

Backup:

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Z:

Ssh-copy-id-i. ssh/id_rsa.pub [Email protected] (you can also change the id_rsa.pub mv to Authorized_keys, but the former can directly modify the permissions permissions 600)

SCP. Ssh/id_rsa **@x:/home/**/.ssh/(sending the private key past) SCP. Ssh/id_rsa **@y:/home/**/.ssh/(sending the private key past)

Can be detected in XY:

SSH **@z free-m

Bulk Distribution:

A:

Vim fenfa.sh#!/bin/sh. /etc/init.d/functionsif [$#-ne 1];then echo "sh $ arg0" exit 1fi for IP in B Cdo scp-r-P $ **@ $IP: ~ >/d Ev/null 2>$1 #拷目录和保持属性 If [$?-eq 0];then action ' scp is OK '/bin/true else action "SCP is no"/ Bin/falsedone

Touch Test.logsh fenfa.sh Test.log

Batch management:

A:

Vim view.sh#!/bin/sh. /etc/init.d/functionsif [$#-ne 1];then echo "sh $ arg0" exit 1fi for IP in B Cdo echo "=====start=====" ss H **@ $ip echo "=====end=====" done

SH view.sh "Free-m"

SSH Key Password-free authentication distribution, management, backup