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TIBCO Rendezvous® 8.8.0

# Motivation

Deploy secure daemons when clients must connect securely over a non-secure network. This section illustrates example situations involving remote clients.

## rvsd

rvsd—Secure Connections across Single Firewall depicts a hub and spoke architecture. An `rvsd` hub runs on a firewall computer, and remote programs access the hub through secure TLS connections. This arrangement lets trusted remote programs communicate with servers and other programs inside the secure inner network. `rvsd` bars untrusted programs from connecting to it.

Figure 117: rvsd—Secure Connections across Single Firewall

## rvsrd

Figure 118: rvsrd—Secure Connections across Double Firewall

rvsrd—Secure Connections across Double Firewall depicts a situation with two Rendezvous routing daemons configured to cross a double firewall. Remote programs initiate secure TLS connections to a secure routing daemon hub (`rvsrd`) within the outer firewall (DMZ network). A secure TLS neighbor link connects that secure routing daemon with an ordinary routing daemon (`rvrd`) in the secure inner network.

To configure secure neighbor links, see SSL Connection with Compression.

Preventing Multicast in the DMZ

To prevent `rvsrd` from multicasting client messages within the DMZ network, start `rvsrd` with the `-no-multicast` option. For background information, see Disabling Multicast.

| `-no-multicast` is available starting with Rendezvous release 7.2. This feature replaces the following procedure, which was required in earlier releases:
| • | Configure `rvsrd` so that in all of its local networks, the network specification is the loopback address (IP address `127.0.0.1`). To configure, see Local Network Interfaces Configuration.
| • | Similarly limit the access of client transports to network and service pairs in which the network is the loopback address (IP address `127.0.0.1`). To configure, see Authorize Network and Service Pairs.

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