Planning considerations for chat
See Ports used by Sametime services for more details on which ports are required to be open on firewalls.
Small internal chat-only deployments
For small internal deployments, a single Docker system can be deployed to support web chat, mobile chat, and chat users with desktop clients (such as the Sametime Connect and Embedded Sametime client in HCL Notes).
An example of a small deployment includes a single Docker deployment of Sametime, MongoDB Server, and the LDAP directory.
Figure 1 shows an example of a small internal deployment that only includes chat.
Small chat-only environments with internet access
Figure 2 shows a small chat-only environment that includes internet access to Sametime.
In this example, you can open port 443 on the firewall to support mobile clients on the internet. You can open TCP port 1533 to support desktop clients. Instead of placing Sametime in the internal zone, you can also place Sametime in a DMZ or on the external zone.