Shulou(Shulou.com)06/02 Report--

The password is about to expire. Because of the large number of machines, it is processed by changing the password in batches.

Here are the specific steps:

1. Configure ssh to be key free

# ssh-keygen-t rsa-P''- f ~ / .ssh/id_rsa # ssh-copy-id 10.230.86.64

(since only one-way copy files are required, we can configure 63 and 64 to 91 boco users to be key-free)

two。 Test whether the key-free configuration is successful

3. Write a password file

Write all users and passwords that need to be changed into the file according to the following format, and be careful that there is no blank line in the middle.

Vi userpasswdfile.txt root:xxxxxx boco:xxxxxx security:xxxxxx

Note: the reason why the above file is written under boco users is because I have to do it in batches, and our root users cannot log in directly, so if you are a single machine or root can log in directly, just operate under root users directly. When I went to the machine today, I found the following prompts:

4. Under the root user, execute the following command to change the password

Sudo su-cp / home/boco/userpasswdfile.txt / root/ chmod 777 userpasswdfile.txt chpasswd

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