ssh keygen linux

SSH to the 192.168.88.61 machine requires a password, which is inconvenient for some scripts because of the need for a password, which requires manual intervention. Recently found a command Ssh-copy-id is very convenient, tested, and sure enough to use, recorded:On the 192.168.88.61 machine.1) Run: ssh-keygen-t RSA2) T

: $ Password: (enter Password) At this point, if the secret is correct, you can log in. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In the trust environment, if each remote login, you have to enter a password, feel too wasted time, especially the password is very complex, maintenance of the server more than the case. So there is a normal need: you do not have to enter a password to achieve remote logins. The implementation steps are as follows: 1, local generat

its own identity flag "private key" to achieve the purpose of verification, and private key can not be inferred from the public key backwards. This avoids the potential for password leaks caused by network eavesdropping. The client needs to be careful to save its own private key to avoid being stolen by others, and once that happens, the server will need to replace the trusted public key list.2, to achieve the effect:The network topology diagram is as follows: A total of 4 servers, the host nam

, there may be several reasons why the target server has replaced the public key, and the destination server has replaced the IP address or domain name, causing you to connect to the other host causing the public key to be mismatched; Whatever the reason, you should be wary of establishing a connection.　　　　Note:[1] "challenge" refers to the server using public key encryption data sent to the client, the client uses a paired private key to decrypt the data, the client successfully decrypted after

AAAAB3NzaC1yc2EAAAABIwAAAQEAq2A7hRGmdnm9tUDbO9IDSwBK6TbQa+PXYPCPy6rbTrTtw7PHkccKrpp0yVhp5HdEIcKr6pLlVDBfOLX9QUsyCOV0wzfjIJNlGEYsdlLJizHhbn2mUjvSAHQqZETYP81eFzLQNnPHt4EVVUh7VfDESU84KezmD5QlWpXLmvU31/yMf+Se8xhHTvKSCZIFImWwoG6mbUoWf9nzpIoaSjB+weqqUUmpaaasXVal72J+UX2B+2RPW3RcT0eOzQgqlJL3RKrTJvdsjE3JEAvGq3lGHSZXy28G3skua2SmVi/w4yCE6gbODqnTWlg733www+wC604ydGXA8VJiS5ap43JXiUFFAaQ==3 Displaying the public key fingerprint[[emailprotected] ssh]#

] busybox-1.20.2]# Telnet: Telnet protocol, 23/TCPCS:telnet ServerC:telnet ClientSsh:secure SHell, Application layer protocol, 22/TCPCommunication process and authentication process is encrypted, host authenticationUser authentication process EncryptionData transfer Process EncryptionSSH v1, v2Man-in-middleSshv2Certification process:Password-based authenticationKey-based authentication:Protocol: SpecificationImplementation: Server-side, clientLinux:opensshCServer side: sshd, configuration

Ssh-keygen generates a public and private key pair. Ssh-copy-id The local public key is copied to the remote machine's Authorized_keys file, Ssh-copy-id can also let you have to the remote machine home, ~./SSH, and ~/.ssh/authoriz

Ssky-keygen + ssh-copy-id login remote Linux host without passwordUsing Ssky-keygen and Ssh-copy-id in the example below, you can log in to a remote Linux host with a simple setup of 3 steps without entering a password.Ssh-

Using Ssky-keygen and Ssh-copy-id in the example below, you can log in to a remote Linux host with a simple setup of 3 steps without entering a password.Ssh-keygenCreate public keys and keys.The Ssh-copy-id copies the local host's public key to the remote host's Authorized_keys file.Ssh-copy-idThe User home directory (

In the following example, ssky-keygen and ssh-copy-id can be used to log on to a remote Linux host without a password. Ssh-keygen creates the public key and key. Ssh-copy-id copies the public key of the local host to the authorize

I. Overview 1, is to allow two Linux machines to use SSH between the user name and password is not required. Digital signature RSA or DSA is used to complete this operation. 2. Model Analysis Assuming that a (192.168.20.59) is a client machine, B (192.168.20.60) is the target machine;The purpose to be achieved:A machine SSH login B machine does not need to enter

Linux Ssh-keygen generate public and private keysThe following command tests OK on the centos6.6.Previously, it was necessary to enter 3 consecutive times, and now after adding the parameters, the Id_rsa and id_rsa.pub are generated directly in the ~/.SSH directory.Ssh-keygen