Port 2135Grid Resource Information Server

Grid Resource Information Server exposes Globus grid resource information through LDAP on TCP and UDP port 2135.

transport: tcp · udp
in transit: cleartext
assignment: official
risk: 2/10
lookups: 0

also known as gris, Globus GRIS, MDS GRIS

Technical Details

what runs on :2135

GRIS uses an LDAP-based query and response protocol, normally over TCP port 2135; UDP is also registered but is not the usual transport for LDAP queries. Resource-specific information providers populate the directory, which clients query with LDAP searches and filters. In Globus MDS deployments, a GIIS could aggregate information from multiple GRIS instances, commonly using a separate service port.

Security Information

exposure of :2135

risk score

2/ 10safe

routine exposure. this port is rarely the way in on its own — keep it patched and logged and move on.

network services averages 3.2 across 841 ports — this one sits 1.2 below.

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

GRIS generally exposes operational and configuration information rather than providing administrative control, but unauthenticated or cleartext deployments can disclose details about grid resources and infrastructure. It is a legacy service and should normally be restricted to trusted grid networks or protected with appropriate access controls rather than exposed to the public Internet.

Record

iana registry entry

port: :2135
service: Grid Resource Information Server
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 2/10safe
category: Network Services System
usage: Port 2135 was used by the Globus Toolkit's Monitoring and Discovery Service (MDS) for Grid Resource Information Servers. Grid clients and higher-level information services queried it to discover resource status, configuration, and capabilities.
lookups: 0rank 994
added: 2026-08-30
updated: 2026-08-30
references: IANA service name registry — port 2135

Something wrong?

This record is maintained by the engineers who use port 2135. 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 2026-08-30.

01edit any field on a page of its own
02a model checks it for accuracy and spam
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edit this record →back to the registry

Related Ports

all 841 in network services →

the 8 most looked-up other ports in network services — 841 ports carry that label.

port	service	proto	category	risk	views
:9080	Groove RPC	TCPUDP	Web Services	caution	70.8k
:6543	Jetnet	UDP	Network Services	caution	65.3k
:5938	TeamViewer	TCPUDP	Remote Access	caution	65.0k
:8291	Winbox MikroTik Admin	TCP	Security	caution	62.9k
:3233	WhiskerControl Protocol	TCPUDP	Network Services	caution	61.9k
:3268	Microsoft Global Catalog (GC)	TCPUDP	Security	caution	54.6k
:135	Microsoft EPMAP	TCPUDP	Security	caution	51.9k
:3128	Tatsoft Default HTTP Proxy	TCP	Web Services	caution	46.8k

risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :2135Grid Resource Information Server

Technical Details

Security Information

Related Ports

Port 2135Grid Resource Information Server