This section describes each pre-configured port in your DC/OS deployment.
DC/OS components listen on multiple ports on each node. These ports must be available for installation to succeed.
- For DC/OS to install and function as intended, these ports must be accessible upon initial installation.
- The ports must be open between the indicated source and destination nodes, including over cluster zones.
- You must use appropriate network mechanisms to prevent unauthorized access to cluster nodes. Refer to the documentation on network security.
DC/OS allocates additional ports to services running on top of DC/OS. These ports are required to be available when services are installed.
All nodes
TCP
| Port |
DC/OS Component |
systemd Unit |
Source |
Destination |
| 53 |
DC/OS Net |
dcos-net.service |
agent/master |
agent/master |
| 61003 |
REX-Ray |
dcos-rexray.service |
agent/master (may change due to specific REX-Ray configuration) |
agent/master (may change due to specific REX-Ray configuration) |
| 61091 |
telegraf |
dcos-telegraf.service |
agent/master |
agent/extra |
| 61092 |
fluent-bit |
dcos-fluent-bit.service |
agent/master |
agent/extra |
| 61420 |
DC/OS Net |
dcos-net.service |
agent/master |
agent/master |
| 62080 |
DC/OS Net |
dcos-net.service |
agent/master |
agent/master |
| 62501 |
DC/OS Net |
dcos-net.service |
agent/master |
agent/master |
UDP
| Port |
DC/OS Component |
systemd Unit |
Source |
Destination |
| 53 |
DC/OS Net |
dcos-net.service |
agent/master |
agent/master |
| 64000 |
DC/OS Net |
dcos-net.service |
agent/master |
agent/master |
NOTE: UDP port 123 is open for communication with NTP.
Master
TCP
| Port |
DC/OS Component |
systemd Unit |
Source |
Destination |
| 80 |
Admin Router Master (HTTP) |
dcos-adminrouter.service |
public IP |
master |
| 443 |
Admin Router Master (HTTPS) |
dcos-adminrouter.service |
public IP |
master |
| 2181 |
ZooKeeper |
dcos-exhibitor.service |
agent/master |
master |
| 3888 |
ZooKeeper |
dcos-exhibitor.service |
master |
master |
| 2888 |
ZooKeeper |
dcos-exhibitor.service |
master |
master |
| 5050 |
Mesos Master |
dcos-mesos-master.service |
agent/master |
master |
| 7070 |
DC/OS Package Manager (Cosmos) |
dcos-cosmos.service |
localhost |
localhost(master) |
| 8080 |
Marathon |
dcos-marathon.service |
agent/master |
master |
| 8101 |
DC/OS Identity and Access Manager |
dcos-bouncer.service |
localhost |
localhost(master) Enterprise |
| 8123 |
Mesos DNS |
dcos-mesos-dns.service |
localhost |
localhost |
| 8181 |
Exhibitor |
dcos-exhibitor.service |
agent/master |
master |
| 8200 |
Vault |
dcos-vault.service |
localhost |
localhost(master) Enterprise |
| 8201 |
Vault HA |
dcos-vault.service |
master |
master Enterprise |
| 8443 |
Marathon SSL |
dcos-marathon.service |
agent/master |
master |
| 8888 |
DC/OS Certificate Authority |
dcos-ca.service |
localhost |
localhost(master) Enterprise |
| 9090 |
DC/OS Jobs (Metronome) |
dcos-metronome.service |
agent/master |
master |
| 9443 |
DC/OS Jobs (Metronome) SSL |
dcos-metronome.service |
agent/master |
master |
| 9990 |
DC/OS Package Manager (Cosmos) |
dcos-cosmos.service |
localhost |
localhost(master) |
| 15055 |
DC/OS History |
dcos-history-service.service |
localhost |
localhost(master) |
| 15101 |
Marathon libprocess |
dcos-marathon.service |
master |
agent/master |
| 15201 |
DC/OS Jobs (Metronome) libprocess |
dcos-metronome.service |
master |
agent/master |
| 26257 |
CockroachDB |
dcos-cockroach.service |
master |
master Enterprise |
| 61053 |
Mesos DNS |
dcos-mesos-net.service |
agent/master |
master |
| 61430 |
DC/OS Net |
dcos-net.service |
agent/master |
master Enterprise |
| Ephemeral |
DC/OS Component Package Manager (Pkgpanda) |
dcos-pkgpanda-api.service |
None |
None |
UDP
| Port |
DC/OS Component |
systemd Unit |
Source |
Destination |
| 61053 |
Mesos DNS |
dcos-mesos-net.service |
agent/master |
master |
Agent
TCP
| Port |
DC/OS Component |
systemd Unit |
Source |
Destination |
| 5051 |
Mesos Agent |
dcos-mesos-slave.service |
agent/master |
agent |
| 61001 |
Admin Router Agent (HTTP) |
dcos-adminrouter-agent |
agent/master |
agent |
| 61002 |
Admin Router Agent (HTTPS) |
dcos-adminrouter-agent |
agent/master |
agent |
| 1025-2180 |
Default advertised port ranges (for Mesos tasks) |
Any Mesos task |
agent/master |
agent |
| 2182-3887 |
Default advertised port ranges (for Mesos tasks) |
Any Mesos task |
agent/master |
agent |
| 3889-5049 |
Default advertised port ranges (for Mesos tasks) |
Any Mesos task |
agent/master |
agent |
| 5052-8079 |
Default advertised port ranges (for Mesos tasks) |
Any Mesos task |
agent/master |
agent |
| 8082-8180 |
Default advertised port ranges (for Mesos tasks) |
Any Mesos task |
agent/master |
agent |
| 8182-32000 |
Default advertised port ranges (for Mesos tasks) |
Any Mesos task |
agent/master |
agent |
DC/OS Documentation