Should port 8089 be open on my firewall?

Port 8089 should only be open with strict firewall rules whitelisting trusted IP addresses. Enable rate limiting and intrusion detection systems.

What transport protocol does port 8089 use?

Port 8089 (Splunk Management) uses the TCP transport protocol and falls under the System & Infrastructure category.

:8089 (TCP)

Splunk Management

Q: Is port 8089 (Splunk Management) dangerous?

Port 8089 is classified as high risk. It is a common target for automated scanning and brute-force attacks. Restrict access to trusted IPs if exposure is necessary.

High Risk

TCP — System & Infrastructure

Port Overview

Port Number 8089

Service Name Splunk Management

Transport Protocol TCP

Category System & Infrastructure

Security Risk High

Port Range Registered (1024-49151)

What is Port 8089?

Port 8089 is the management/REST API port for Splunk Enterprise and Splunk Universal Forwarder. Splunk's internal REST API uses this port for communication between Splunk components and for administrative operations via the CLI. This port should be restricted to Splunk management traffic only.

TCP System & Infrastructure Commonly Used

Security Considerations

Port 8089 (Splunk Management) is classified as high risk. This port is a common target for automated scanning and brute-force attacks. If you must expose it, restrict access to known IP addresses.

Recommendation: Use firewall rules to whitelist trusted IPs. Enable rate limiting and intrusion detection.

Related Ports — System & Infrastructure

0 Reserved 1 TCPMUX 2 Management Utility 3 CompressNET 4 Unassigned 5 RJE 6 Unassigned 7 Echo

Related Terms

Bandwidth Latency Packet Loss Ping Throughput ASN