![]() ![]() A second file, "/etc/shadow," stores encrypted passwords as well as other data such as account or password expiration values, and so on. The password, on the other hand, is saved as a single "x" character (not actually stored in this file). This approach stores account information in the /etc/passwd file on a regular basis. It is accessible by numerous programs to obtain user information, posing a security concern hence, the file must be 'Word Readable.' We may utilize the shadow password format to reduce the security risk. A one-way encrypted password is also stored in this file. etc/passwd is a text file that Linux uses to store user account information. If you have any prior experience in solving such issues yourself, that would be a valuable addition in answering this Linux interview question. In such Linux interview questions, make sure you talk about how you would approach and solve the problem. These are the runlevel programs, which are executed from the run level directory according to the run level's specifications.
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