101

TCP

HOSTNAME

NIC Host Name Server

🔓 Security: InsecureStatus: Obsolete🌐 Category: Network

📋 Basic Information

Port Number
101
Protocol
TCP
Service
HOSTNAME
Popularity
Low
Description
Host name lookup service. A name resolution protocol used before DNS
Tags
legacydnsnaming

🔒 Security Information

⚠️

Security Notes

Superseded by DNS (port 53), not used in modern environments

🔗 Related Ports

53🔥

DNS

Domain Name System

TCPUDP

Domain Name System for translating domain names to IP addresses. Essential network infrastructure service.

⚠️ Security: Depends🌐 Category: Network
42

WINS

WINS

TCPUDP

Windows Internet Naming Service for NetBIOS name resolution

⚠️ Security: Depends🌐 Category: Network⚠️ deprecated

📚 References