I. Public Key Authentication
1. principle: first, the user generates a pair of keys, and then stores the public key in the user directory of the SSH server. in the authorized_key file in the SSH subdirectory (/root /. SSH/authorized_key ). the
Install OpenSSh.
[Root @ sqzr ~] # Ssh-keygen-B 1024-t rsaGenerating public/private rsa key pair. # The system prompts that an rsa key pair is being generated.Enter file in which to save the key (/root/. ssh/id_dsa)Enter passphrase (empty for
in the on Linux clients Build ssh keys for RSAId_rsa is the keyId_rsa.pub is the public key[email protected]xuegod128~]# ssh-keygen-t RSAGenerating public/private RSA key pair.Enter file in which to save the key (/ROOT/.SSH/ID_RSA):Enter
Script in Github:https://github.com/linuxyan/linuxyan/tree/master/python/batch_create_pub_key
After downloading the script, first we have to set up the public key on the management machine, run the following command, all the way to return.
A machine (SSH connection initiator, i.e. client):Add a test user AAA
The code is as follows:
[Root@a ~]# Useradd AAA
Su becomes AAA
The code is as follows:
[Root@a ~]# SU-AAA
[Aaa@a ~]$
Ssh-keygen Create an RSA key pair
The
Linux Default login mode is the account and password login, if you change to use a key to log in will be relatively safe, but the key to landing a good and bad, want to login VPS must carry a key file, if modified the default root username also need
When you add SSH keys in the background of GitHub, if you have some problems with local git clone git://www.somesite.com/test.git, instead of access denied, you need to test this locally:
Ssh-t git@github.com
If the return is:
Permission denied
Nonsense not much to say, directly on the operation:
1. Install git Bash
Https://git-scm.com/downloads
2. Right mouse button git bash here
3. Execute the following command:
①CD ~/.ssh/"If there is no corresponding folder, execute mkdir./
Today, the O & M Department provides a testing environment for virtual machines. they all use public keys for logon. it is easier to use keys in windows, but the transmission between virtual machines and virtual machines is troublesome. I have to
As PHP becomes more and more popular, Linux VPS/servers are used more and more, and Linux security issues need to be strengthened. If you have installed DenyHosts and set up email reminders, you may receive several DenyHosts reports every day to add
Do a summary of the SSH login class, using a key without password login.Experimental environment: Two CentOS Release 6.6 (Final) with IP addresses of 192.168.2.3 and 192.168.2.6 respectivelyOne, on Windows through the Xshell and other remote
Environment:Local system: win8.1 64-bitServer System: CentOS 5/6 x86_64General process:1. putty generates public key and private key2. Distribute the public key to the linux server so that putty can use the key to link to the linux server.3. Export
As PHP becomes more popular, Linux vps/servers are used more and more, and Linux security issues need to be enhanced, if you install denyhosts and set up email reminders, you may be subject to several letters each day denyhosts The reporting will
Often in the Linux between the SCP command transmission files, each time the need to enter the other machine password, very troublesome. This approach allows both parties to automatically pass the key authentication without having to enter the
Question
Each time before using Putty remote connection, you need to enter a password, remember that you can use SSH to achieve password-free login, so try it.
First, on remote Linux, a pair of RSA public key pairs is created with Ssh-keygen, and
1, enter the following command: ssh-keygen-t RSA
2, input command ls: produce two files: Id_rsa id_rsa.pub
3, copy id_rsa.pub, and named Authorized_key
CP ~/.ssh/id_rsa.pub ~/.ssh/authorized_keys
4, the implementation of SSH localhost.
The first step is to generate a public/private key pair
Using the SECURECRT tool-> create the public key, the cryptographic algorithm chooses RSA because the RSA algorithm is selected in the sshd configuration file
This step generates two files,
This article translates from Digitalocean's Introduction to securing your Linux VPS, which is recommended to read the original. Previously posted in the OSC translation area, has been audited, had to publish to the blog this
ObjectiveTaking
1. Follow the instructions to generate the Key file.
2. Add the public key to the Gitlab SSH Keys. (on user profile page)
3. Test
Note: When SSH first connected to the server, there will be RSA password fingerprint confirmation, enter Yes
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