Port 2393Microsoft OLAP Services

Legacy Microsoft OLAP Services traffic used by older SQL Server Analysis Services deployments.

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

also known as ms-olap1

Technical Details

what runs on :2393

Microsoft OLAP Services uses a proprietary client/server protocol registered on TCP and UDP port 2393. In normal client access, the service is primarily a TCP-based database connection carrying OLAP queries and responses; it is associated with legacy OLAP Services releases rather than modern default SQL Server Analysis Services deployments.

Security Information

exposure of :2393

risk score

6/ 10risk

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

databases averages 3.6 across 97 ports — this one sits 2.4 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

This is database-service traffic and should not normally be exposed directly to the public Internet. Legacy deployments may lack modern encryption defaults and can expose sensitive cube data or authentication surfaces; restrict access to trusted application and administration networks and replace obsolete installations where possible.

Record

iana registry entry

port: :2393
service: Microsoft OLAP Services
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 6/10risk
category: Databases
usage: Port 2393 is associated with legacy Microsoft OLAP Services, the predecessor-era Analysis Services component used for multidimensional database access. Engineers may encounter it on older SQL Server or Microsoft OLAP installations; current Analysis Services deployments more commonly use other ports.
lookups: 0rank 994
added: 2026-09-08
updated: 2026-09-08
references: IANA service name registry — port 2393

Something wrong?

This record is maintained by the engineers who use port 2393. 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 2026-09-08.

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edit this record →back to the registry

Related Ports

all 97 in databases →

the 8 most looked-up other ports in databases — 97 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 :2393Microsoft OLAP Services

Technical Details

Security Information

Related Ports

Port 2393Microsoft OLAP Services