Port 8182VMware Fault Domain Manager

VMware vSphere HA host-to-host communication used by Fault Domain Manager agents.

transport: tcp · udp
in transit: encrypted
assignment: official
risk: 4/10
lookups: 0

also known as vmware-fdm, FDM, vSphere HA

Technical Details

what runs on :8182

VMware FDM uses a proprietary control protocol over both TCP and UDP port 8182 for ESXi host-to-host cluster communication. The agents establish trusted peer communication using the vSphere HA cluster's security configuration; the service is normally present only on hosts participating in vSphere HA. Related VMware management traffic commonly uses TCP 443 for host and vCenter management, but 8182 is specifically the FDM agent channel.

Security Information

exposure of :8182

risk score

4/ 10caution

worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.

system averages 2.7 across 713 ports — this one sits 1.3 above.

in transit

encrypted

payloads are protected on the wire

assignment

official

registered with iana for this service — scanners fingerprint it by number

reachable over

tcp · udp

udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite

security overview

Port 8182 should be restricted to trusted ESXi management and HA networks and should not be exposed to the public internet. It is a cluster control-plane service rather than a general remote-login interface; unexpected exposure can nevertheless reveal VMware infrastructure and increase the impact of vulnerabilities or trust-boundary failures in ESXi or vSphere HA.

Record

iana registry entry

port: :8182
service: VMware Fault Domain Manager
transport: TCPUDP
encryption: tls / encrypted
assignment: iana registered
risk: 4/10caution
category: System Virtualization
usage: This port is used by VMware vSphere HA Fault Domain Manager (FDM) agents for communication between ESXi hosts in an HA cluster. Engineers typically encounter it on ESXi management networks, not on general-purpose application servers or internet-facing systems.
lookups: 0rank 994
added: 2026-09-07
updated: 2026-09-07
references: IANA service name registry — port 8182

Something wrong?

This record is maintained by the engineers who use port 8182. Every field on it is editable — change what's wrong, say how you know, and a reviewer publishes it, usually within a minute. Last touched 2026-09-07.

01edit any field on a page of its own
02a model checks it for accuracy and spam
03clean and confident goes live immediately

edit this record →back to the registry

Related Ports

all 713 in system →

the 8 most looked-up other ports in system — 713 ports carry that label.

port	service	proto	category	risk	views
:8888	Sun Answerbook & Alt HTTP	TCP	Web Services	caution	123.9k
:4664	Google Desktop Search	TCP	System	caution	67.2k
:8008	IBM HTTP Server Admin	TCP	Web Services	caution	58.3k
:3268	Microsoft Global Catalog (GC)	TCPUDP	Security	caution	54.6k
:135	Microsoft EPMAP	TCPUDP	Security	caution	51.9k
:9080	WebSphere HTTP Transport (default)	TCP	Web Services	caution	51.6k
:23	Telnet	TCP	Remote Access	caution	34.8k
:12489	NSClient Monitoring Agent	TCP	Network Services	caution	30.0k

risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :8182VMware Fault Domain Manager

Technical Details

Security Information

Related Ports

Port 8182VMware Fault Domain Manager