
Port requirements
Event Server Daemons
The daemons listed below are required. They are normally run on the master host. As noted below, some of them can be
moved to a different dedicated (physical or virtual) host (“off-host”), and others may be run (“replicated”) on additional
hosts but still require an instance running on the master host.
Note that by default, the master host also runs the Hub and Collector daemons detailed in subsequent sections.
Event Server Daemons
Daemon Port Proto Dir Source / Destination Notes
nginx 8080 (HTTP)
8090 (HTTP)
8091 (HTTP)
9081
1
(HTTP)
TCP
TCP
TCP
TCP
IN
OUT
OUT
OUT
(browser)
zenhub
zenrender
zope
Can be replicated (with
zope) on additional
servers to off-load report
generation.
zenactiond 25 (SMTP)
5672 (AMQP)
11211 (memcache)
13306
2
TCP
TCP
TCP
TCP
OUT
OUT
OUT
OUT
(SMTP daemon)
rabbitmq
memcached
zends
zencatalogservice 8085
13306
2
TCP
TCP
IN
OUT
zope, zenjobs, zenhub
zends
zeneventd 5672 (AMQP)
11211 (memcache)
13306
TCP
TCP
TCP
OUT
OUT
OUT
rabbitmq
memcached
zends
Can be moved or
replicated off-host.
zeneventserver 8084
5672 (AMQP)
13306
2
TCP
TCP
TCP
IN
OUT
OUT
zope, zenhub
rabbitmq
zends
Can be moved off-host.
zenjobs 5672 (AMQP)
8085
13306
2
TCP
TCP
TCP
OUT
OUT
OUT
rabbitmq
zencatalogservice
zends
zenjserver 8700 TCP IN zope
zentune 5672 (AMQP)
8084
11211 (memcache)
13306
2
TCP
TCP
TCP
TCP
OUT
OUT
OUT
OUT
rabbitmq
zeneventserver
memcached
zends
zope (runzope) 9081
1
25 (SMTP)
5672 (AMQP)
8084
8700
11211 (memcache)
13306
2
TCP
TCP
TCP
TCP
TCP
TCP
TCP
IN
OUT
OUT
OUT
OUT
OUT
OUT
nginx
(SMTP daemon)
rabbitmq
zeneventserver
zenjserver
memcached
zends
Can be replicated (with
nginx) on additional hosts
to off-load report
generation.
1. For performance, Resource Manager normally runs multiple instances of the Zope daemon (two, by default).
Each instance is automatically configured with a unique incoming HTTP port. By default, the initial instance
listens on port 9081 and each additional instance uses the port number equal to that of the previous instance
plus one (9082, 9083, etc.). See the zenwebserver chapter of Zenoss Service Dynamics Extended Monitoring for
information on how to manage the number of concurrent Zope servers.
2. Local connections to ZenDS are through the /var/lib/zends/zends.sock unix socket.
B-3
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