Port 4848GlassFish Administration Console

GlassFish and compatible application servers use port 4848 for their administrative HTTP(S) interface.

transport: tcp · udp
in transit: encrypted
assignment: official
risk: 8/10
lookups: 0

also known as appserv-http, Payara admin

Technical Details

what runs on :4848

The deployed GlassFish administration listener normally uses TCP and speaks HTTPS, with TLS established before HTTP requests for the administration console and REST-style management APIs. Port 4848 is the conventional admin port; application traffic commonly uses ports 8080 and 8181, while JMX commonly uses 8686. Although IANA lists both TCP and UDP, GlassFish administration is a TCP protocol and does not normally use UDP.

Security Information

exposure of :4848

risk score

8/ 10risk

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

web services averages 3.4 across 148 ports — this one sits 4.6 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

This is a remote administration interface and should normally be restricted to localhost, a management network, or a tightly controlled VPN. Exposure permits attackers to target administrative authentication and management APIs; a compromise can allow deployment or modification of applications and server configuration. TLS is normally enabled by default, but default or weak credentials, self-signed certificates, and unpatched GlassFish or compatible-server vulnerabilities remain significant risks.

Record

iana registry entry

port: :4848
service: GlassFish Administration Console
transport: TCPUDP
encryption: tls / encrypted
assignment: iana registered
risk: 8/10risk
category: Web Services Remote Access
usage: Port 4848 is the default administration port for GlassFish, and is also used by compatible distributions such as Payara. Engineers encounter the web administration console and administrative APIs here, commonly at an HTTPS URL.
lookups: 0rank 994
added: 2026-09-08
updated: 2026-09-08
references: IANA service name registry — port 4848

Something wrong?

This record is maintained by the engineers who use port 4848. 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.

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 148 in web services →

the 8 most looked-up other ports in web services — 148 ports carry that label.

port	service	proto	category	risk	views
:8888	Sun Answerbook & Alt HTTP	TCP	Web Services	caution	123.9k
:8000	Intel Remote Desktop / Alternate HTTP Port	TCP	Web Services	safe	84.3k
:8888	NewsEDGE	TCPUDP	Web Services	caution	83.3k
:8888	HTTP Alternative Port	TCP	Web Services	caution	76.5k
:8888	GNUmp3d Streaming HTTP	TCP	Web Services	caution	76.3k
:9080	Groove RPC	TCPUDP	Web Services	caution	70.8k
:8881	Atlasz Secure Server	TCP	Web Services	caution	67.6k
:80	HTTP	TCPUDP	Web Services	caution	67.3k

risk mix of the 8 listed

safe13%
caution88%

0 of 8 encrypted

Port :4848GlassFish Administration Console

Technical Details

Security Information

Related Ports

Port 4848GlassFish Administration Console