# mds file

The mds file is the highest level
file in the D3 file structure and resides on the dm account.

## Description

The mds file contains pointers to all master dictionary accounts on the
system. The *real* account pointers are those that are defined
by D-pointers.

There are synonym definition items in the system
file that essentially define alternate names for existing accounts.

A few system-level files may also be found in the mds file. These are files only, meaning that they contain no commands.
An example of this is the restore-errors file.

## See also

- [Account](https://d3codex.com/definitions/account-glossary/)
- [admin.maint utility](https://d3codex.com/tcl/admin-maint-utility/)
- [Dictionaries](https://d3codex.com/definitions/dictionaries/)
- [Logon](https://d3codex.com/definitions/logon/)
- [password command](https://d3codex.com/tcl/password-command/)
- [Passwords](https://d3codex.com/definitions/passwords/)
- [resize command](https://d3codex.com/tcl/resize-command/)
- [Restricted system access](https://d3codex.com/definitions/restricted-system-access/)
- [Security](https://d3codex.com/definitions/security/)
- [Synonym-defining items](https://d3codex.com/definitions/synonym-defining-items/)
- [System privileges](https://d3codex.com/definitions/system-privileges/)

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Source: https://d3codex.com/systemfiles/mds-file/ - part of the D3Codex reference.