In order to protect Tigase servers from DOS attacks, a limit on number of account registrations per second has been implemented. This may be configured by adding the following line in the config.tdsl file:

'registration-throttling' () {
    limit = 10

This setting allows for 10 registrations from a single IP per second. If the limit is exceeded, a NOT_ALLOWED error will be returned.

It is possible to create two separate counters as well:

'registration-throttling' () {
    limit = 10
}
c2s {
    'registration-throttling' (class: tigase.server.xmppclient.RegistrationThrottling) {
        limit = 3
    }
}

Here we have one for c2s with a limit of 3, and a global for all other connection managers set at 10.

You can also set individual components limits as well:

ws2s {
    'registration-throttling' (class: tigase.server.xmppclient.RegistrationThrottling) {
        limit = 7
    }
}