Setting up access control is an important initial step as the system initially is wide open.

When Tvheadend verifies access is scan through all the enabled access control entries. The permission flags, streaming profiles, DVR config profiles, channel tags are combined for all matching access entries. An access entry is said to match if the username / password matches and the IP source address of the requesting peer is within the prefix.

The access rules are listed / edited in a grid.



Columns
The columns have the following functions:

Enabled
Enable this access control rule. Uncheck the box to disable.
Username
Login name to be used. If no username is required, this entry should contain a single asterisk (*).
Password
Login password to be used. If username is '*' (unused), the password should be the same (i.e. match any username/password combination, or no username/password required).
Network prefix
IPv4 prefix for matching based on source IP address. If set to 0.0.0.0/0 it will match everything. The multiple networks can be delimited using comma or semicolon.
Web interface
Required for web user interface access. Also gives access to the EPG.
Admin
Enables access to the Configuration tab.
Streaming
Enables access to streaming functionality for HTTP (web).
Advanced Streaming
Enables access to advanced streaming function for HTTP (web) - like direct service or whole MPEG-TS stream (mux)..
HTSP Streaming
Enables access to streaming for the HTSP protocol (Movian, Kodi etc.).
Streaming Profile
Specify a streaming profile to be used when this user logs in; use the (default) stream if not specified.
Limit Connections
If set, this will limit the number of concurrent streaming connections a user is permitted to have. 0=disabled
Video Recorder
Enables access to all video recording functions. This also include administration of the auto recordings.
HTSP DVR
Enables access to video recording functions for the HTSP protocol (Movian, Kodi etc.).
All DVR
Enable to access to DVR entries created by other users (read-only).
All DVR (rw)
Enable to access to DVR entries created by other users with the ability to remove the DVR entries.
DVR Config Profile
If set, the user will only be able to use the DVR config profile equal to this value. Note that this field is unset when the DVR Config Profile is removed.
Min Channel Num
If non-zero, this sets the lower limit of the channels accessible by a user, i.e. the user will only be able to access channels where the channel number is equal to or greater than this value.
Max Channel Num
If non-zero, this sets the upper limit of the channels accessible by a user, i.e. the user will only be able to access channels where the channel number is equal to or less than this value.
Channel Tag
If set, the user will only be able to access channels containing this channel tag. Note that this field is unset when the channel tag is removed.
Comment
Allows the administrator to set a comment only visible in this editor. It does not serve any active purpose.



Let's also take a look at an example:

First line gives clients originating from 192.168.0.0 - 192.168.0.255 network access to streaming functions. Typically you would use this for your local media players at home (All though Movian can prompt for username & password in its HTSP client)

The second line adds a user with world wide access who might want to modify recordings, etc, perhaps from the job, or mobile phone.

The third line provide admin access to the 'admin' user. As an extra precaution this user is only allowed to log in from the home network.