Port 6514Syslog over TLS

Secure syslog transport for sending log messages between devices and collectors over TCP/TLS or UDP/DTLS.

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

also known as syslog-tls, Syslog over DTLS, RFC 5425

Technical Details

what runs on :6514

On TCP, the sender establishes a TLS connection before sending syslog messages; RFC 5425 uses octet-counted framing so messages can be separated in the byte stream. On UDP, RFC 6012 defines syslog over DTLS, with messages carried in datagrams. Port 6514 is the default for both mappings; the conventional unencrypted syslog port is UDP 514. The IANA assignment covers TCP and UDP, though these are distinct TLS and DTLS transports.

Security Information

exposure of :6514

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 3.0 across 407 ports — this one sits 1.0 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

Encryption protects log contents in transit, but a listener can still expose sensitive operational data if logs are accessible to unintended recipients. Restrict access to trusted senders and collectors, use certificate validation, and consider mutual TLS: server-side TLS alone does not necessarily authenticate the sender. Public exposure can also invite unauthorized log injection or resource-exhaustion attempts.

Record

iana registry entry

port: :6514
service: Syslog over TLS
transport: TCPUDP
encryption: tls / encrypted
assignment: iana registered
risk: 4/10caution
category: Security Network Services
usage: Syslog agents, network devices, and servers use this port to forward logs securely to a collector or SIEM. It is the standard port for syslog over TLS and is also used for the DTLS mapping over UDP.
lookups: 0rank 993
added: 2026-10-10
updated: 2026-10-10
references: IANA service name registry — port 6514
RFC 5425
RFC 6012

Something wrong?

This record is maintained by the engineers who use port 6514. 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 2026-10-10.

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edit this record →back to the registry

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all 407 in security →

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risk mix of the 8 listed

caution100%

2 of 8 encrypted

Port :6514Syslog over TLS

Technical Details

Security Information

Related Ports

Port 6514Syslog over TLS