execute:Chmod 600/root/. ssh/authorized_keysModify permissions.
2. Modify the/etc/ssh/sshd_config file, change the values after RSAAuthentication and PubkeyAuthentication to yes, and save the changes.
3. Restart the sshd service and run Debian/Ubuntu./Etc/init. d/ssh restartCentOS execution:/Etc/init. d/sshd restart.
. SSH directory of the B machine, and cat id_dsa.pub >> ~/.ssh/authorized_keys4, finished, from a machine login B machine's target account, no longer need password;Ssh-keygen do password verification to enable SSH to the other machine, the SCP does not use the password.Here's how:SSH-KEYGEN-T RSAThen all returns, with
Sep 16:09. BASHRC-rw-r--r--1 AAA 383 Sep 16:09. EmacsDRWX------2 AAA AAA 4.0K Sep 16:09. SSH directory default permissions are 700Note The default permission for the generated private key file is the RW-------, which is 600 (make sure others cannot view it)
The code is as follows:
[Aaa@a ~]$ LL. ssh/
Total
Objective:Tidy up a long time ago to do offsite backup, data synchronization has the use of SSH password-free through the key to login steps.For security reasons, a simple configuration of the SSH service is requiredDescriptionServer: Servers (or destination machines that store data offsite) or understood as destination addresses in IP trafficClient: Both worksta
SSH public key verification
It is not safe to log on to the server using the username and password. The SSH public key is used to verify that this method can effectively solve the login server and secure login server features:Objective: to log on to the Server by using Client password-free sshSSH supports multiple logo
Set the HOME environment variable to modify the ssh-key Path found by git by default, gitssh-key
Edit the profile file in the etc directory under the git installation directory. For example:E: \ Git \ etc \ profileFind the following line:
# Set up USER's home directoryif [-z "$ HOME"-o! -D "$ HOME"]; then HOME = "$ HOMEDRIVE $ HOMEPATH" if [-z "$ HOME"-o! -D
The first step, login linode panel account settings Lish settings
The image above is found in my profile-lish settings and we need to create the SSH login key and fill it out to the Lish keys.
Step two, create SSH key login
, create the SSH login
the match succeeds, you can log in.
To copy a public key file to a remote server:
$ SCP ~/.ssh/id_dsa.pub User@remote.host:pubkey.txt$ ssh User@remote.host$ mkdir ~/.ssh$ chmod. SSH$ cat Pubkey.txt >> ~/.ssh/authorized_keys$ RM ~
/putty[SSH-2 RSA 2048]#生成SSH密钥对SSH-KEYGEN-T rsagenerating public/private RSA key pair.#建议直接回车使用默认路径Enter fileinchWhich to save the key (/ROOT/.SSH/ID_RSA):#输入密码短语 (leave blank then enter directly)Enter Passphrase (empty forNo pass
)Want to let A, B machine without password mutual login, that machine is configured in the same manner as above. The use of Ssh-keygenSuppose A is a customer machine and B is the target machine;To achieve the purpose:A machine SSH login B machine does not need to enter a password;Encryption mode RSA|DSA can be selected, the default DSAPractice:1. Log In a machine2, Ssh
file is id_dsa,id_dsa.pub)Want to let A, B machine without password mutual login, that machine is configured in the same manner as above.The use of Ssh-keygenSuppose A is a customer machine and B is the target machine;To achieve the purpose:A machine SSH login B machine does not need to enter a password;Encryption mode RSA|DSA can be selected, the default DSAPractice:1. Log In a machine2,
For some work, I need to give the system to some friends. I think they only need the SSH users with the lowest permissions. I will introduce the operation methods below.
What if I have an SSH account with proxy permissions on VPS? Very simple. Two lines of commands help you!
The Code is as follows:
Copy co
protected] ~]# ssh-copy-id-i ssh/id_rsa.pub [email protected]The authenticity of host ' 192.168.1.2 (192.168.1.2) ' can ' t be established.RSA key fingerprint is 68:94:ee:45:f8:58:6f:1c:e9:c6:4c:5b:11:bc:50:e6.Is you sure want to continue connecting (yes/no)? Yeswarning:permanently added ' 192.168.1.2 ' (RSA) to the list of known hosts.[email protected] ' s pass
Linux system installed, after the establishment of ordinary users, ordinary users may not be able to connect to the server via SSHYou can add allowusers:username to the/etc/ssh/sshd_config(Can be multiple, separated by a space) to increase SSH permissions for ordinary usersYou can also set up a user/user group that allows and denies SSH:Denyusers:username,denygro
% Application DataVanDyke generates two files in the format of Openssh Key format. if the default Standard Public Key and VanDyke Private Key are selected, format conversion or compatibility problems may be required, public key Identity. pub and private key Identity.
Then,
Ubuntu 9.10 is newly installed. To better use Ubuntu, You need to configure it better.
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I am used to centos, so it is not suitable to add the sudo when using Ubuntu, And the folder access
There are also restrictions, so I think using the root account to log on, the method is as follows:Sudo passwd root can set the password for the root user twice.----------------------------------
Ubuntu VI does not support direction keys and backspace keys. Therefore, you
compatibility issues may be required. The Public Key Identity. pub and Private Key Identity.
Then, create a secret in the user directory that you want to use to log on to opensuse. ssh directory. Here I am lazy and run the ssh-keygen tool to create the local key.
Gitlab Add the part of the deployment public key is a bit strange, although the gitlab of the deployment public key is in the database, but actually directly add database records can not be used, there will be no access, and usually do third-party access is generally directly added to the database, so this is a headacheThe preliminary estimate is that Gitlab treats the public
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