Anonymous Users & Authentication
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## Anonymous Users & Authentication

To support anonymous users, you must first enable anonymous authentication on your server.

### Anonymous Authentication

Tigase Sevrer can support anonymous logins VIA SASL-ANONYMOUS in certain scenarios. This can be enabled by using the following setting in init.properties file: --vhost-anonymous-enabled=true This setting is false by default as SASL-ANONYMOUS may not be totally secure as users can connect without prior permission (username and password). This is a global setting and will affect all vhosts unless they are set individually. If you wish to allow only certain hosts to allow anonymous login, then use the --virt-hosts configuration like below:

    --virt-hosts=domain1:-anon, domain2:c2s-ports-allowed=5032:-tls-required

Where domain1 now has anonymous access allowed, and domain2 does not.

### Anonymous User Features

To connect to your server anonymously, you must use a client that supports anonymous authentication and users. Connect to the server with the name of the server as the username, and no password. For example, to connect anonymously to xmpp.example.com use the following credentials,

Username: xmpp.example.com Password:

In this mode all login information is stored in memory, and cannot be retrieved at a later date.

Other features of Anonymous Authentication - Temporary Jid is assigned and destroyed the moment of login/logout. - Anonymous users cannot access the database - Anonymous users cannot communicate outside the server (use s2s connections) - Anonymous users have a default limit on traffic generated per user.

#### Reconnection on Anonymous

On products such as our JaXMPP Server, users connected using SASL-ANONYMOUS can reconnect to existing sessions using cookie management. However, reconnection can be improved and extended using Bosh Session Cache which allows for session storage in memory rather than using client-side data for reconnection.

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