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Firewall Configuration

Accessible Ports

The Ops Manager Application must be able to connect to users and MongoDB Agents over HTTP or HTTPS. MongoBD Agents must be able to connect to MongoDB client MongoDB databases.

Though Ops Manager only requires open HTTP (or HTTPS) and MongoDB network ports to connect with users and to databases, what ports are opened on a firewall depend upon what capabilities are enabled: encryption, authentication and monitoring.

This page defines which systems need to connect to which ports on other systems.

Ops Manager connects with a number of services. This page explains the ports that must be opened to deploy the various components used with an Ops Manager deployment.

The specific ports that must be open on any intermediate firewalls depend upon what capabilities are enabled, such as encryption, authentication, and monitoring.

Diagram showing the connections between Ops Manager's components.

Tip

All ports listed in the following sections are either the port specified in the documentation for MongoDB installations or the known ports for the specific service assigned by the IANA. If the port number can be changed, it is noted after the table in each section.

To run Ops Manager without an Internet connection, see Configure Deployment to Have Limited Internet Access to ensure you have all of the necessary binaries to run Ops Manager without an Internet connection.

Open Ports to Access Ops Manager

Ops Manager requires the following minimum network port requirements:

  • Both Ops Manager users and MongoDB Agents must be able to connect to the Ops Manager application over HTTP or HTTPS.
  • Ops Manager must be able to connect to the mongod running the Ops Manager application MongoDB databases.
  • For each Ops Manager project, MongoDB Agents must be able to connect to all client MongoDB processes (mongod or mongos).
  • The Ops Manager application must also be able to send email to Ops Manager users.

To use Ops Manager, open the following ports to the specified hosts.

Service Default Port Transport Direction Purpose Uses TLS?
HTTP 8080 TCP Inbound Provides a web connection to Ops Manager from users and MongoDB Agents. No
HTTPS 8443 TCP Inbound Provides a secure web connection to Ops Manager from users and MongoDB Agents. Yes
HTTP or HTTPS 8090 TCP Inbound

Provides a health-check endpoint for monitoring Ops Manager through a monitoring service like Zabbix or Nagios. It is only available through localhost and is disabled by default.

To enable it, see Enable the Health Check Endpoint. When enabled, you can access the endpoint at:

http://127.0.0.1:8090/health

Important

This port is only accessible from localhost (or 127.0.0.1). The port number can be changed from 8090 to another value.

The API endpoint provides the ability to check connections from the HTTP Service to the Ops Manager Application Database and the Backup Snapshot Storage.

A successful response returns the following:

{
  "mms_db": "OK",
  "backup_db": "OK"
}
Optional
MongoDB 27017 TCP Outbound Connects to MongoDB application, backup and client databases. Optional
SMTP 587 TCP Outbound Sends emails from Ops Manager to an SMTP host or to AWS SES. Optional

Note

Open Ports to Access Ops Manager and MongoDB Hosts

Most Ops Manager administration can be performed through the user interface. Some procedures require access to the operating system. To permit your administrators to access your Ops Manager as well as MongoDB hosts, open the following ports to those hosts.

Service Default Port Transport Direction Purpose Uses TLS?
ssh 22 TCP Inbound Linux System administration. Yes
RDP 3389 TCP Inbound Windows System administration. No

Open Ports to Back Up, Restore, and Query MongoDB Instances using Ops Manager

Ops Manager can back up MongoDB databases to one or more storage systems:

To back up MongoDB hosts, open the following ports to the preferred backup hosts (blockstore, S3 snapshot store and/or file system snapshot store):

Service Default Port Transport Direction Purpose Uses TLS?
MongoDB 27017 TCP Outbound Back up snapshots of entire database to Blockstore or snapshot metadata to S3 Blockstore metadata database. Optional
HTTPS 443 TCP Outbound Back up database snapshot data to S3 bucket. Yes
NFS 2049 TCP Outbound Back up database snapshots to UNIX-/Linux-based file system. No
CIFS 3020 TCP Outbound Back up database snapshots to Windows-based file system. No
scp 22 TCP Outbound Restore snapshot to a host. Yes

Snapshots can also be restored using the link displayed in the Ops Manager application. The same ports needed to use Ops Manager would need to be open for the user to download the snapshot.

To find the download link, click Backup, then the Restore History tab, then click the download link next to the snapshot.

Note

MongoDB 3.4.2 Enterprise and later provides the ability to query backup snapshots. Ops Manager provisions these queryable snapshots as read-only MongoDB instances, as described in Query a Backup. To query a backup snapshot, open the following ports:

Service Default Port Transport Direction Purpose Uses TLS?
MongoDB 27700-27719 TCP Inbound Enable communication between the app host and a queryable backup snapshot. Optional

Open Ports to Integrate Ops Manager with SNMP

Open the following ports between Ops Manager and your SNMP Manager to send and receive SNMP trap notifications from your MongoDB deployments to Ops Manager.

Service Default Port Transport Direction Purpose Uses TLS?
SNMP 162 UDP Outbound Send Traps to SNMP Manager. No
SNMP 11611 UDP Inbound Receive requests from SNMP Manager. No

Ops Manager uses SNMP v2c. You can configure the Ops Manager Application to send a periodic heartbeat trap notification (v2c) that contains an internal health assessment of the Ops Manager Application. The Ops Manager Application can send traps to one or more endpoints on the standard SNMP UDP port 162.

To configure the Ops Manager Application to send trap notifications, first download the Management Information Base (MIB) file at http://downloads.mongodb.com/on-prem-monitoring/MMS-MONGODB-MIB.txt . Then add the following settings as custom settings. To do so, click the Admin link, then the General tab, then the Ops Manager Config page, and then the Custom section.

Open Ports to Provide Additional Monitoring for Ops Manager

Important

Using Munin to monitor hardware has been deprecated in favor of the native cross-platform hardware monitoring available to managed deployments through Automation.

Beyond Ops Manager’s built-in monitoring capability, it can use the Munin Graphing Framework to provide additional monitoring on UNIX/Linux-based MongoDB instances and hosts.

Service Default Port Transport Direction Purpose Uses TLS?
munin-node 4949 TCP Inbound Provides CPU and disk throughput and latency metrics. No

To configure the munin-node package, see Configure Hardware Monitoring with munin-node.

Open Ports to Authenticate Ops Manager Users using LDAP

MongoDB Enterprise users can authenticate Ops Manager users using LDAP. To authenticate using LDAP, open the following ports on Ops Manager and your LDAP host.

Service Default Port Transport Direction Purpose Uses TLS?
LDAP 389 UDP Both Authenticate and/or authorize Ops Manager users against LDAP host. No
LDAPS 636 UDP Both Authenticate and/or authorize Ops Manager users against LDAP host. Yes

To configure the Ops Manager LDAP URI strings, including configuring a non-standard port, see User Authentication.

Open Ports to Authenticate with MongoDB

MongoDB Enterprise users can use Kerberos or LDAP to authenticate MongoDB users. To authenticate using LDAP or Kerberos, open the following ports between the MongoDB client databases, Ops Manager, and the Kerberos or LDAP host(s).

Service Default Port Transport Direction Purpose Uses TLS?
Kerberos 88 TCP / UDP Outbound Request authentication for MongoDB users against Kerberos host. No
Kerberos 88 UDP Inbound Receive authentication for MongoDB users against Kerberos host. No
LDAP 389 UDP Both Authenticate and/or authorize MongoDB users against LDAP host. No
LDAPS 636 UDP Both Authenticate and/or authorize MongoDB users against LDAP host. Yes

To configure Kerberos for authentication to the Ops Manager application database, see Configure Ops Manager to Connect to Backing Databases with Access Control.

Open Ports to Manage Encryption Keys using KMIP

MongoDB Enterprise deployments using the WiredTiger storage engine supports a native encryption option. You can use a KMIP service to manage the master encryption key. To support the encrypted storage engine via KMIP, open the following ports between the Backup Daemon hosts, the MongoDB hosts, and the KMIP hosts.

Service Default Ports Transport Direction Purpose Uses TLS?
KMIP 5696 TCP Outbound Send messages between MongoDB databases and KMIP host. Yes

Note

If you change the port for the KMIP host, see Encrypted Backup Snapshots to configure Ops Manager to use that new port.

Internet Site Access

If Ops Manager is not configured for Local Mode, it requires access to the following Internet sites over HTTPS:

Site Purpose
downloads.mongodb.com To download MongoDB Enterprise Builds.
opsmanager.mongodb.com To download the MongoDB version manifest.
fastdl.mongodb.org To download MongoDB Community Builds.