nsswitch

tags : Linux, PAM

What §

• NSS (Name Service Switch) is a system mechanism to configure different sources for common configuration databases.
• For example, /etc/passwd is a file type source for the passwd database.
• It connects the computer with a variety of sources of common configuration databases and name resolution mechanisms.
• A system administrator usually configures the operating system’s name services using the file /etc/nsswitch.conf.