Ssh configuration password-less login, ssh password login
Premise: machines A and B are all RedHat Linux operating systems and all have user
1. Log On with the user name and run the command on machine.
Ssh-keygen-t rsa
Press enter without a password
OpenSSH
OpenSSH is a free open-source implementation of the SSH (Secure Shell) protocol. It uses secure and encrypted network connection tools instead of Telnet, FTP, rlogin, RSH, and rcp tools. OpenSSH supports SSH protocol versions 1.3, 1.5, and 2.
Use digital signature RSA or DSA to implement ssh between two linux machines without the user name and password, rsassh
To enable two linux machines to use ssh, the user name and password are not required. Therefore, the digital signature RSA or DSA
How to use a one-time password to securely log on to Linux through SSH, and use a password to log on to linux through ssh
Some people say that security is not a product, but a process. Although the SSH protocol is designed to use encryption
Assuming the server IP address is 192.168.1.1, machine name:cluster.hpc.org client IP address is 172.16.16.1, machine name:p470-2.wangrx.sioc.ac.cn Client User Yzhao needs to log on to the server's zhaoy account with no password ssh
Centos6.5 configure SSH password-free login and centos6.5ssh password-free Login
Create a new user: Useradd hadoop
Set Password: Passwd hadoop,Enter your desired password, and then su hadoop switches to the user.
Modify host name:
Reprint Address: http://blog.csdn.net/netzsm/archive/2007/09/13/1783055.aspx
1. Automatic Ssh/scp method = =
A is a local host (that is, a machine used to control other hosts);b is a remote host (that is, a controlled machine server), if IP is 192.16
From the surface of a simple understanding of the process of login, first ssh-keygen-t RSA command generated a key and a public key, and the key can set its own password can be understood as a key, the public key is understood as the key
Another small trick, using the expect scripting language to implement SSH automatic connection to the server, you can automatically enter the password. Because every time using SSH root@xx.xx.xx.xx connection server, you have to manually enter the
1. Automatic Ssh/scp method = =A is a local host (that is, the machine used to control other hosts);b is the remote host (that is, the controlled machine server), if the IP is 192.168.60.110;Systems A and B are all Linux.Run the command on a:#
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