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This article to share with you is about how to configure ssh login in the server, Xiaobian feel quite practical, so share to everyone to learn, I hope you can have some harvest after reading this article, not much to say, follow Xiaobian to see it.

** Server login configuration **

Quick login: ssh-config

Configure ssh-config on local client environment (MAC) to make it easier to access Cloud Virtual Machine

/etc/ssh/ssh_config

~/.ssh/config

Here is the quick login configuration for my two servers

#Modify ssh configuration file ~/.ssh/config

Host serverA

HostName 192.168.1.101

# HostName *.*.*.* private network IP

User root

Host ServerB

HostName

User root

Copy code #after successful configuration directly ssh Host name can be

$ ssh serverA

Copy code password free login: public-key and ssh-copy-id

How do I log on to a remote server without privacy?

Two files: ~/.ssh/id_rsa.pub for local environment and ~/.ssh/authorized_keys for remote server

One action: copy and paste the contents of a local file to a remote server

Put your public key on a remote server.

If the file ~/.ssh/id_rsa.pub does not exist, it is generated using ssh keygen

Simply put, it is Ctrl-C and Ctrl-V operation, but the specific implementation is more trivial. More importantly, there is a threshold for newcomers: vim use

A command line tool for productivity is needed: ssh-copy-id

#Operating in a local environment

#will prompt you to enter the password, after success, you can directly ssh into

$ ssh-copy-id serverA

Copy Code Disable Password Login

Modify the ssh configuration file of the Cloud Virtual Machine: /etc/ssh/ssh_config. PasswordAuthentication is set to no to disable password login

#Disable password login

Host *

PasswordAuthentication no

Create a new SSH key

Use ssh-keygen to generate id_rsa and id_rsa.pub file pairs

#Create an ssh-key

# -t: dsa optional| ecdsa | ed25519 | rsa |rsa1, representing encryption method

# -C: Comments, generally write your own mailbox

$ ssh-keygen -t rsa -C "server"

#Generate id_rsa/id_rsa.pub: Pair private key and public key

$ ls ~/.ssh

authorized_keys config id_rsa id_rsa.pub known_hosts

The above is how to configure ssh login in the server. Xiaobian believes that some knowledge points may be seen or used in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

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