Port 8019QB DB Dynamic Port

Port 8019 is assigned as the QB DB Dynamic Port for TCP and UDP.

transport: tcp · udp
in transit: cleartext
assignment: official
risk: 6/10
lookups: 0

Technical Details

what runs on :8019

QuickBooks Desktop commonly uses TCP port 8019 for communication with the QuickBooks Database Server Manager and for locating or accessing shared company files. The service is generally installed as a Windows QuickBooksDB service and is accompanied by additional version-specific ports, often in the 567xx or 5537x-5538x ranges. IANA lists both TCP and UDP for the QB DB Dynamic Port assignment, but normal QuickBooks deployments primarily document and use TCP; this is not a general-purpose SQL listener. The protocol is proprietary, and traffic should not be assumed to provide transport encryption by default.

Security Information

exposure of :8019

risk score

6/ 10risk

treat as sensitive. widely scanned and regularly exploited when reachable — restrict it to known sources.

databases averages 3.9 across 133 ports — this one sits 2.1 above.

in transit

cleartext

credentials and payloads are readable by anyone on path

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

Do not expose this port directly to the public Internet. An exposed QuickBooks database service may reveal service behavior or provide an attack path toward shared accounting data, particularly when paired with other QuickBooks ports or weak host controls. Restrict it to trusted local networks or VPNs and allow access only from authorized QuickBooks clients.

Record

iana registry entry

port: :8019
service: QB DB Dynamic Port
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 6/10risk
category: Databases
usage: This port is commonly used by QuickBooks Desktop's Database Server Manager on Windows systems hosting shared company files. It is normally encountered inside a trusted LAN, alongside version-specific QuickBooks database ports.
lookups: 0rank 993
added: 2026-09-10
updated: 2026-09-22
references: IANA service name registry — port 8019

Something wrong?

This record is maintained by the engineers who use port 8019. 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 2026-09-22.

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 133 in databases →

the 8 most looked-up other ports in databases — 133 ports carry that label.

port	service	proto	category	risk	views
:8882	Atlasz Secure App Server	TCP	Web Services	caution	66.9k
:9001	ETL Service Manager	TCPUDP	Databases	caution	28.6k
:2484	Oracle SSL Listener	TCPUDPtls	Security	caution	25.0k
:5495	Applix TM1 Admin	TCP	Databases	caution	24.8k
:591	FileMaker Web Sharing	TCP	Web Services	caution	23.1k
:1521	Oracle TNS Listener	TCP	Security	caution	19.6k
:21001	AMLFilter Admin	TCP	Security	caution	19.2k
:18206	Audition FAM DB	TCPUDP	Databases	caution	19.1k

risk mix of the 8 listed

caution100%

1 of 8 encrypted

Port :8019QB DB Dynamic Port

Technical Details

Security Information

Related Ports

Port 8019QB DB Dynamic Port