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Tuesday, October 29, 2013

Network Ports Used in Oracle Enterprise Manager 12c

By Courtney Llamas



When planning and configuring your Oracle Enterprise Manager 12c implementation, you will have many infrastructure considerations. One of the most often discussed pieces is the network ports that are used and how to configure load balancers, firewalls and ACLs for communication.

This blog post will help identify the typical default port and range for each component, how to identify it and how to modify the port usage.

To modify most ports during installation, select the Advanced Installation and set the appropriate ports on the Port Configuration Details screen.



Once the system is installed, you can use the following EMCTL or OMSVFY commands to validate components and port assignment:
$emctl status oms -details
$omsvfy show opmn
$omsvfy show ports

To verify if a port is free, run the following command:

On Unix:
$netstat -an | grep
On Microsoft Windows:
>netstat -an|findstr

For more information on OMSVFY (part of the EMDIAG toolkit) see MOS Note 421053.1: EMDIAG Troubleshooting Kits Master Index

External Ports

These ports will be used in every Enterprise Manager 12c installation and will require firewall and/or ACL modifications if your network is restricted.  These are also the components that will be added to your load balancer configuration.

Default Port
Range
Component
Usage
Modify
4889
4889 – 4898
Enterprise Manager OHS Upload HTTP
Agent Communication to OMS (unsecure). Used in load balancer.
To modify after install follow notes 1381030.1 and 1385776.1. Requires changes on all Agents.
1159
1159, 4899 – 4908
Enterprise Manager OHS Upload HTTP SSL
Agent Communication to OMS (secure). Used in load balancer.
To modify after install follow notes 1381030.1 and 1385776.1. Requires changes on all Agents.
7788
7788 – 7798
Enterprise Manager OHS Central Console HTTP (Apache/UI)
Web browser connecting to Cloud Control Console (unsecure). Used in load balancer and for EM CLI.
To modify after install follow notes 1381030.1.
7799
7799 - 7809
Enterprise Manager OHS Central Console HTTP SSL (Apache/UI)
Web browser connecting to Cloud Control Console (secure). Used in load balancer and for EM CLI.
To modify after install follow note 1381030.1.
7101
7101 - 7200
EM Domain WebLogic Admin Server HTTP SSL Port
Cloud Control Admin Server.
To modify after install follow note 1109638.1.
3872
3872, 1830 – 1849
Cloud Control Agent
Only the OMS will connect to this port, to either report changes in the monitoring, submit jobs, or to request real-time statistics.
Port can be provided during Agent install.
If the agent port needs to be changed at a later date this can be done with the following command on the agent:
emctl setproperty agent -name EMD_URL -value https://hostname.domain:port/emd/main/

This will allow the agent to run on the new port, however the target does not get renamed so continues to show the original port.
1521*
Depends on Listener Configuration
Database Targets -  SQL*Net Listener
For Repository database, only the OMS will connect to store management data from
the agents. For all monitored target databases OMS will retrieve information requested by browser clients.
To modify this port for the repository database:
Change the listener.ora file for the EM repository. Restart the listener. Then for every OMS machine using that repository run the following:
emctl stop oms
emctl config oms -store_repos_details -repos_conndesc -repos_user sysman
emctl start oms
emctl config emrep -agent -conn_desc  

To modify this port for monitored targets, change the listener configuration on the target, then update Monitoring Configuration in EM.
7101
7101 - 7200
FMW Targets – Admin Console
Outgoing from OMS, used for managing FMW targets.
To modify after install follow note 1109638.1.
NA
NA
ICMP
Outgoing from OMS to host servers if the Agent is unreachable. Validates if server is up or down.
NA

Internal Ports

These ports are required for internal Enterprise Manager communication and typically do not require additional firewall/ACL configuration.
Default Port
Range
Component
Usage
Modify
7201
7201 – 7300
EM Domain WebLogic Managed Server HTTP Port
Used for Fusion Middleware communication.
Configured during installation
7301
7301 – 7400
EM Domain WebLogic Managed Server HTTP SSL Port
Used for Fusion Middleware communication.
Configured during installation
7401
7401 – 7500
Node Manager HTTP SSL Port
Used for Fusion Middleware communication.
Configured during installation
6702
6100 - 6199
Oracle Notification Server (OPMN) Local
Ports used by OPMN  can be verified from /gc_inst/WebTierIH1
/config /OPMN/opmn/opmn.xml:



Modify the opmn.xml to use free ports as below:
1. Stop OMS
2. Take a backup of the existing opmn.xml and ports.prop in the / gc_inst/WebTierIH1/ config /OPMN/opmn directory.
3. Edit the opmn.xml file, under the element, modify the local / remote port, as necessary to the free port available and save the file.
4. Edit the ports.prop file and modify the remote / local port parameters as necessary and save the file.
5. Start the OMS
6703
6200 - 6201
Oracle Notification Server (OPMN) Remote
Ports used by OPMN  can be verified from /gc_inst/WebTierIH1
/config/OPMN/opmn/opmn.xml:



Modify the opmn.xml to use free ports as below:
1. Stop OMS
2. Take a backup of the existing opmn.xml and ports.prop in the /gc_inst/WebTierIH1/ config/OPMN/opmn directory.
3. Edit the opmn.xml file, under the element, modify the local / remote port, as necessary to the free port available and save the file.
4. Edit the ports.prop file and modify the remote / local port parameters as necessary and save the file.
5. Start the OMS

Optional

These ports required only if certain components are to be used and firewall/ACL changes may be needed.

Default Port
Range
Component
Usage
Modify
443

Secure web connection (https - 443) to updates.oracle.com support.oracle.com
ccr.oracle.com
login.oracle.com
aru-akam.oracle.com
Outgoing from OMS used for online communication with Oracle for OCM, MOS, Patching, Self-Updates, ASR
Proxy settings defined via the UI (Setup -> Proxy Settings)
Do not use the OMS parameters!  
51099

Application Dependency and Performance RMI Registry Port
ADP
Configured during installation
55003

Application Dependency and Performance Java Provider Port
ADP
Configured during installation
55000

Application Dependency and Performance Remote Service Controller Port
ADP
Configured during installation
4210

Listen
ADP
Configured during installation
4211

SSL Listen Port
ADP
Configured during installation
3800

JVM Managed Server Listen
JVM
Configured during installation
3801

JVM Managed Server SSL Listen
JVM
Configured during installation
9701
9701-49152
BI Publisher HTTP
BI Publisher
During install can modify with configureBIP script.  Post-install can be modified per Note 1524248.1
9702
9701-49152
BI Publisher HTTP SSL Port
BI Publisher
During install can modify with configureBIP script.  Post-install can be modified per Note 1524248.1

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Disclaimer

Opinions expressed in this blog are entirely the opinions of the writers of this blog, and do not reflect the position of Oracle corporation. No responsiblity will be taken for any resulting effects if any of the instructions or notes in the blog are followed. It is at the reader's own risk and liability.

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