Linux User and Group Management Essentials
User Management
Creating Users
The useradd command creates new user accounts. By default, the system automatically generates a home directory under /home/ using the username.
useradd jerry
To specify a custom home directory path, use the -d option:
useradd -d /opt/custompath jerry
After creating a user, set or update the password with the pas ...
Posted on Sat, 16 May 2026 05:03:00 +0000 by andrewdunstall
Resetting the Admin Password in Easysearch Clusters
Easysearch automatically creates an admin user through the user.yml configuration file during initialization. The default configuration appears as follows:
admin:
hash: "$2y$12$mA9DDk7iOBQA3u.Ebc0QSOVKsgwlkm6OJcrEcpyrTrT5M5It86usq"
reserved: true
external_roles:
- "admin"
description: "Default administrator ...
Posted on Wed, 13 May 2026 12:14:58 +0000 by youqing
User Account Management in CentOS 7
Key Configuration Files
User and group information in Linux is stored in specific text files within the /etc directory. Understanding these files is crucial for system administration.
/etc/passwd: Contains user account information. Each line represents a user with fields separated by colons: username:password:UID:GID:comment:home_directory:log ...
Posted on Thu, 07 May 2026 20:00:22 +0000 by davestevens_uk