Port directory — page 13

Astro - Modern static site generator supporting multiple frontend frameworks

Erlang Port Mapper Daemon port for distributed Erlang node communication

Rundeck job scheduling port for operations automation

HTTPS alternative port for secure web services

IANA registers TCP 4444 for multiple services including KRB524 (Kerberos v4-to-v5 conversion). It also serves as an alternate HTTP(S) port across products — some IPMI/BMC interfaces, Kerio Control, IoT dashboards and debug endpoints. Metasploit\u2019s default reverse-shell handler also uses it, so an unexpected public listener on 4444 is often treated as suspicious.

I2P protocol port for anonymous network communication

UDP 4500 carries IPSec/IKEv2 NAT-Traversal (NAT-T). When a VPN client sits behind NAT, IKE negotiates a switch from port 500 to 4500 and encapsulates ESP traffic there. It almost always pairs with UDP 500.

SaltStack publisher port for configuration management

SaltStack request port for remote execution

Web Framework port, mainly used for Spark Java

Nomad cluster port for distributed task scheduling

Nomad RPC port for cluster node communication

Nomad Serf port for cluster discovery and failure detection

OPC UA binary protocol port for industrial automation data exchange

OPC UA discovery port for industrial device discovery

RadminVPN service port for remote desktop connections

Universal network service port for web applications and development servers

Universal network service port for socket communication

FileMaker Pro database port for database network sharing

RTP media transport port for real-time media streaming

RTP media transport port for backup real-time media streaming

Logstash Beats port for log data transmission

Service: Yahoo! Messenger...; Java frameworks: Ratpack

Session Initiation Protocol port for VoIP voice calls and video communication