Putty login without a password in linux

 

When using linux, you often need to enter a password. When the password is long, it is a nightmare to use a long and weird password, especially after setting denyhost, if the login fails several times in a row, the system will refuse to log on again within a certain period of time.

Linux Password-less login is a big topic, including ssh password-less connection, scp password-less copy, rsync password-less synchronization, and so on.

Today, we will only discuss remote linux with no password on the putty side.

Now let's get started.

 

Part 1: Environment and tools:

 

Linux: Server, ubuntu 10.0.4; server name, jia_server_svn.net; User Name & password, jia/jia

Putty: can be downloaded. Connect to remote linux

Putty key generator: Generate public/private.

# NOTE: For putty and puttygen, you can download them online or in csdn (I uploaded them myself). You can also download them on the "Official Website" of putty:

Http://www.chiark.greenend.org.uk /~ Sgtatham/putty/

Http://www.chiark.greenend.org.uk /~ Sgtatham/putty/download.html

Http://www.putty.org/

 

Part 2: Installation Steps

 

Step 1: Run PuTTY Key Generator

 

Step 2: slide the mouse to generate public/private pair

 

 

Step 3: Save the Private Key

 

 

 

Step 4: Save the public key. Of course, it can also be left empty.

 

 

 

Step 5: Write the public key to the server

# NOTE: The. ssh directory under the user does not exist. Generally, if you use ssh to connect to another server, A. ssh directory is generated under the current user directory.

 

 

# NOTE: here, the authorized_keys file is also concurrently existing. For the first time, you often need to manually create it. In addition, multiple public keys can be written in the file, just like the file below me, line2 and line3 are related to git.

 

Step 6: Open putty and Configure Connection --> ssh-> Auth

 

 

 

 

 

 

 

 

 

 

Step 7: Open putty again and enter the user name to log in. Need to enter the password? Why? Didn't I configure sshkey myself?

 

 

Well, I didn't save the Session on purpose just now, so that the saving during login here won't be too abrupt.

The specific configuration process is as follows:

 

But when you finish this step. Congratulations, you have mastered the essence of this blog, and you have no value for the blog's several-minute stay concurrency.

If you have any questions, please contact us.

 

 

 

NAME: Jia Xiaolei/Jia Xiaolei

 

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