The following figure shows an example of the sequence of messages exchanged between Tectia Server and an external application, resulting in a positive response.

Figure E.2. Sequence diagram of the communication between Tectia Server and an external application

In this example Tectia Server (S) uses an external application (C) to check if user with the id 45678 and user name jbrown from the IP address 192.0.2.2 in domain abc.example.com is allowed access. The application gives a negative response:

C: version:1
S: version:1
S: request:1
S: user=45678:jbrown
S: addr-ip=192.0.2.2
S: addr-fqdn=abc.example.com
S: end-of-request:1
C: request:1
C: failure:jbrown not allowed from that subnet.

Tectia Server (S) uses an application (C) to check how many connections user admin from the IP address 192.0.2.3 has made. The application returns the number of connections:

C: version:1
S: version:1
S: request:1
S: user=34567:admin
S: addr-ip=192.0.2.3
S: end-of-request:1
C: request:1
C: number-of-connections=42
C: success: