view mod_block_registrations/README.markdown @ 5497:1be6e375a7c2

misc/lnav: Fix delimiting of timestamp in pattern The string with the timestamp format in core.loggingmanager does end with a space, so having the exact same string here is nice, but the pattern did not reflect this.
author Kim Alvefur <zash@zash.se>
date Wed, 31 May 2023 18:04:30 +0200
parents 72f23107beb4
children
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Introduction
============

On a server with public registration it is usually desirable to prevent
registration of certain "reserved" accounts, such as "admin".

This plugin allows you to reserve individual usernames, or those
matching certain patterns. It also allows you to ensure that usernames
conform to a certain pattern.

Configuration
=============

Enable the module as any other:

    modules_enabled = {
      "block_registrations";
    }

You can then set some options to configure your desired policy:

  Option                         Default             Description
  ------------------------------ ------------------- -----------------------------------------------------------------------------------------------------------------------------------------------
  block_registrations_users      *See source code*   A list of reserved usernames
  block_registrations_matching   `{ }`               A list of [Lua patterns](http://www.lua.org/manual/5.1/manual.html#5.4.1) matching reserved usernames (slower than block_registrations_users)
  block_registrations_require    `nil`               A pattern that registered user accounts MUST match to be allowed

Some examples:

    block_registrations_users = { "admin", "root", "xmpp" }
    block_registrations_matching = {
      "master$" -- matches anything ending with master: postmaster, hostmaster, webmaster, etc.
    }
    block_registrations_require = "^[a-zA-Z0-9_.-]+$" -- Allow only simple ASCII characters in usernames

Compatibility
=============

  ------ -------
  0.12    Works
  0.11    Work
  ------ -------