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088. Why Do Some Programs Allow Logins with No Password?




Description

This article is from the Frequently Asked Questions for Linux, the Free/Open Source UNIX-like operating system kernel that runs on many modern computer systems. Maintained by David C. Merrill with numerous contributions by others. (v1.0).

088. Why Do Some Programs Allow Logins with No Password?

A: You probably have the same problem as in Why Won't Some Programs (e.g., xdm) Allow Logins?, with an added wrinkle.

If you are using shadow passwords, you should put a letter x or an asterisk in the password field of /etc/passwd for each account, so that if a program doesn't know about the shadow passwords it won't think it's a passwordless account and let anyone in.

 

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