Port 2811GridFTP

GridFTP control service using GSI authentication for high-performance transfers in grid computing.

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

also known as gsiftp, Globus GridFTP

Technical Details

what runs on :2811

GridFTP extends FTP with GSI-based authentication and authorization, parallel and partial transfers, and separate control and data channels. The control connection uses FTP commands and responses over TCP port 2811; data channels are negotiated separately and commonly use dynamic ports, with protection options ranging from clear transfer to integrity and confidentiality. IANA lists both TCP and UDP for this assignment, although deployed GridFTP implementations ordinarily use TCP.

Security Information

exposure of :2811

risk score

4/ 10caution

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

security averages 3.6 across 243 ports — this one sits 0.4 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

GSI authenticates clients using grid credentials, but data-channel confidentiality and integrity depend on the negotiated protection level and deployment configuration rather than being inherent in every transfer. Internet-facing GridFTP services should be restricted to trusted source networks, kept patched, and carefully limited through grid-map authorization and firewall controls.

Record

iana registry entry

port: :2811
service: GridFTP
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 4/10caution
category: Security File Transfer
usage: Port 2811 is the GridFTP server control endpoint, used by Globus and other grid-computing deployments to negotiate authenticated file transfers. The actual data transfer normally uses separate, dynamically negotiated TCP connections, often with parallel streams.
lookups: 0rank 994
added: 2026-08-30
updated: 2026-08-30
references: IANA service name registry — port 2811

Something wrong?

This record is maintained by the engineers who use port 2811. 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
03clean and confident goes live immediately

edit this record →back to the registry

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risk mix of the 8 listed

caution100%

3 of 8 encrypted

Port :2811GridFTP

Technical Details

Security Information

Related Ports

Port 2811GridFTP