Least Privileged User: DP, Mediator Server

Purpose

The Mediator Server is the primary Data Processor service, and is responsible for receiving and storing log data from Agents. The service receives communication from Agents and may send communications to the AIE Communication Manager service.

Shared Resources


Read

Write

Read & Execute

Modify

Full Control

Children Inherent

LogRhythm Installation Directory Path>\LogRhythm\LogRhythm Mediator Server





X


<LogRhythm Active Archive Path>





X


<LogRhythm Inactive Archive Path>





X


<LogRhythm Installation Directory Path>\LogRhythm\LogRhythm Mediator Server\state\DXReliablePersist





X


Archive paths can be changed from the Data Processor Advanced Properties interface in the Deployment Manager/Data Processors tab.

If the Mediator is configured to write inactive archive files to a separate server, additional file permissions must be given so the Mediator service has write permissions to the remote file share. For assistance configuring Mediator offline storage, see Data Archives and Restoration.

Registry Access


Read Control

Write Owner

Write DAC

Delete

Create Link

Enumerate Subkeys

Set Value

Query Value

Full Control

Children Inherent

HKEY_LOCAL_MACHINE\
System\CurrentControlSet\
services\eventlog\Security

X

X

X

X

X

X

X

X


X

HKEY_LOCAL_MACHINE\System\
CurrentControlSet\services\
eventlog\Application

X

X

X

X

X

X

X

X


X

HKEY_LOCAL_MACHINE\System\CurrentControlSet\
Services\WinSock2\Parameters

X

X

X

X

X

X

X

X


X

HKEY_LOCAL_MACHINE\
SYSTEM\CurrentControlSet\
services\scmedsvr









X


HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Perflib

 








X


HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows NT\CurentVersion\Perflib

 








X


HKEY_LOCAL_MACHINE\
System\CurrentControlSet\
Services\LogRhythm Mediator:LDS

X

X

X

X

X

X

X

X


X

HKEY_LOCAL_MACHINE\
System\CurrentControlSet\
Services\LogRhythm Mediator:LogMart

X

X

X

X

X

X

X

X


X

HKEY_LOCAL_MACHINE\
System\CurrentControlSet\
Services\LogRhythm Mediator:Processing

X

X

X

X

X

X

X

X


X

HKEY_LOCAL_MACHINE\
System\CurrentControlSet\
Services\LogRhythm Mediator:Stats

X

X

X

X

X

X

X

X


X

HKEY_LOCAL_MACHINE\
SYSTEM\CurrentControlSet\
services\.NET CLR Data

X









X

HKEY_LOCAL_MACHINE\
SYSTEM\CurrentControlSet\
services\.NET CLR Networking

X









X

HKEY_LOCAL_MACHINE\
SYSTEM\CurrentControlSet\
services\.NET CLR Networking 4.0.0.0

X









X

HKEY_LOCAL_MACHINE\
SYSTEM\CurrentControlSet\
services\.NET Data Provider for Oracle

X









X

HKEY_LOCAL_MACHINE\
SYSTEM\CurrentControlSet\services\.NET Data Provider for SqlServer

X









X

Database Access

The Mediator Server uses the LogRhythmLM database user and the LogRhythmGlobalMedSvr and LogRhythmGlobalMPE security roles to access the LogRhythm EMDBs and the archive database. All permissions are set as required by the default security role.

Ports

Mediator port configuration is handled through the Console’s Deployment Manager. Click the Data Processors tab, select and right-click a Data Processor, and then click Properties. The port settings can be reached through the Advanced button, the AI Engine tab, or the Automatic Log Source Configuration tab.

Port

Default Port

Inbound/Outbound

Purpose

ServerSSLPort

443

Inbound from Agent(s)

Primary listener port for receiving logs from Agents

Mediator Port

40000

Inbound from Agent

Listener port for Mediator to get logs from Agent in unidirectional mode only

SecondaryServerSSLPort

443

Inbound from Agent(s)

External-facing IP port for secondary server (if configured)

TertiaryServerSSLPort

443

Inbound from Agent(s)

External-facing IP port for tertiary server (if configured)

AIE Client Management Port

Random/ Ephemera

Outbound to AIE communication

If this log source reports to AIE, it will call out to the configured AIE server

AIE Client Data Port

Random/ Ephemera

Outbound to AIE communication

If this log source reports to AIE, it will call out to the configured AIE server

Automatic Log Source

161

Inbound SNMP

The Mediator can be configured to automatically listen to and gather SNMP traps

DX Acknowledgment

16000

Inbound from DX

Acknowledgments for log transfer from the Mediator to the Data Indexer

Other Resources

The Mediator Server does not access any external third-party systems.