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The defaults, which would be observed if `/etc/nsswitch.conf` were missing, are:

NsSwitch.Conf

The Name Service Switch configuration file (or nsswitch.conf(5)), typically found at /etc/nsswitch.conf, declares how domain names should be translated into IP addresses.

Contents

  1. NsSwitch.Conf
    1. Example
    2. Syntax
      1. Databases
      2. Criteria

Example

group            compat
group_compat     nis
hosts            files dns
networks         files
passwd           compat
passwd_compat    nis
shells           files
services         compat
services_compat  nis
rpc              files
proto            files
netgroup         files

Syntax

Databases

The first column (delimited by spaces) indicates a database, while every subsequent column is a source or criteria.

Criteria

Criteria are structured as [STATUS=ACTION] or [!STATUS=ACTION].

A status can be any of...

  • success meaning 'no error'.

  • notfound meaning 'error in lookup'.

  • unavail indicates a connection couldn't be made.

  • tryagain indicates 'temporarily unavailability', as with locked connections.

An action is one of...

  • return meaning 'return the result'

  • continue meaning 'try the next item'

The implicit default is that a source only results in a return action given a success status. Anything else will result in a continue.

CategoryRicottone

BSD/NsSwitchConf (last edited 2023-06-22 20:39:00 by DominicRicottone)