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This article shows you how SecureCRT uses ssh key login configuration, the content is concise and easy to understand, can definitely brighten your eyes, through the detailed introduction of this article, I hope you can get something.

Server-side configuration

OS: Debian-6.0.5

The code is as follows:

# apt-get install ssh installs ssh service

Edit / etc/ssh/sshd_config configuration file

The code is as follows:

Port 3322 # modify port to 3322 (custom)

PermitRootLogin no # prohibits root users from logging in remotely

PubkeyAuthertication yes # allows login with key

PasswordAuthertication no # prohibits remote ssh clients from logging in with a password

Iptables setting enables port 3322 to allow access

The code is as follows:

Iptables-I INPUT-p tcp-- dport 3220-j ACCEPT

Method 1: the administrator generates key for ordinary users on the server side

(if there is no user, create a new user first. Debian with adduser)

For example, generate ssh key for user name and fengzhige

The code is as follows:

Adduser fengzhige # add user

Su-fengzhige # Log in as fengzhige user

Using ssh-keygen to generate key

The code is as follows:

Ssh-keygen-t rsa # generates key of type RSA

Root@debian-2:~# su-fengzhige

Fengzhige@debian-2:~$ pwd

/ home/fengzhige

Fengzhige@debian-2:~$ ssh-keygen-t rsa

Generating public/private rsa key pair. Enter file in which to save the key (/ home/fengzhige/.ssh/id_rsa): fengzhige-key

Enter passphrase (empty for no passphrase):

Enter same passphrase again: Your identification has been saved in fengzhige-key.

Your public key has been saved in fengzhige-key.pub. The key fingerprint is: f1:f5:5c:59:aa:4d:7d:b2:9a:56:c8:bc:50:8b:87:80

Fengzhige@debian-2 The key's randomart image is:

+-[RSA 2048]-+

|. |

|. Oo |

| | E o o +. + |

| | + BO +. |

| | S = B * | |

| | o = |

| = |

|. | |

| | |

+-+

Fengzhige@debian-2:~$

Set the public key

The code is as follows:

The key generated by ssh-keygen under debian will be in the current directory:

(fengzhige-key Private fengzhige-key.pub Public)

Cd / home/fengzhige

Cd .ssh # create a new .ssh directory, and put the public key here

Cat id_key.pub > > authorized_keys # changed to the specified file name authorized_keys

Save the private key to the client with SecureCRT.

Connection:

The above is how SecureCRT uses ssh key login configuration. Have you learned any knowledge or skills? If you want to learn more skills or enrich your knowledge reserve, you are welcome to follow the industry information channel.

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