20170117 Old Boys Linux combat operations Training-ssh key password-free authentication distribution, management, backup actual combat 01

Source: Internet
Author: User

This section says the SSH

SSH manufacturing private and public keys


The private key is the key

The public key is a lock


Distribute the public key to each Linux server you want to log on to


#ssh-keygen-t DSA


Using this command will generate a pair of keys in this machine

Private key ID_DSA

Public Key Id_dsa.pub


Put the public key on the server you want to log on to

With the command


#ssh-copy-id-i id_dsa.pub [email protected]


Put the public key on the server and start verifying it.

Command

#ssh [email protected]


In fact, you can also use other commands to log in as

#scp-p22-r/tmp/oldboy [email protected]


There is also a rsync which is a command also a service


There are also two tools Cfengine/puppet


Central distribution server is important because there are keys on it that can open all the servers

20170117 Old Boys Linux combat operations Training-ssh key password-free authentication distribution, management, backup actual combat 01

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