CyberHunter
LinkedIn profile - Bastien Cordier Email: contact@bastiencordier.pro
// Other services

Port 10101: eZmeeting

Port 10101 is assigned by IANA to ezmeeting-2 (eZmeeting).

10101

How ezmeeting-2 works

Other services
client:10101ezmeeting-2response client:10101ezmeeting-2response

The client sends a request to port 10101 and the ezmeeting-2 service answers.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Registered (1024-49151)
Category
Other services
01 Security

Is port 10101 dangerous?

We have no specific security note for port 10101. Its risk depends on the program actually listening on it. General advice for other services services:

  • Close the port if nothing on the host needs it.
  • Identify the process that listens on it (commands below) before opening it in a firewall.
  • Expose a service only to the networks that use it.
02 Registry

IANA registry entries for port 10101

ServicePortTransportDescriptionReferenceUpdated
ezmeeting-2 10101 TCP, UDP eZmeeting - 2002-03

// source: IANA service name and port number registry

03 Check it

Which program uses port 10101, and is it reachable?

Linux

sudo ss -ltnup 'sport = :10101'      # process listening on 10101
sudo lsof -nP -i :10101

macOS

sudo lsof -nP -i :10101

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 10101 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 10101
netstat -ano | findstr :10101

From another machine

nmap -p 10101 -sV <host>
sudo nmap -sU -p 10101 <host>
nc -zv <host> 10101

Block it in the firewall

sudo ufw deny 10101/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 10101" -Direction Inbound -LocalPort 10101 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 10101 used for?

Port 10101 is assigned by IANA to ezmeeting-2 (eZmeeting).

Is port 10101 TCP or UDP?

Port 10101 is registered for TCP and UDP.

Is it safe to open port 10101?

It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Close the port if nothing on the host needs it.

How do I check if port 10101 is open?

On Linux run "ss -ltnup 'sport = :10101'", on macOS "lsof -nP -i :10101", and on Windows "netstat -ano | findstr :10101" to see the local process. From another machine, "nmap -p 10101 <host>" shows whether it is reachable.

05 Related
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp

Latest vulnerability news

All news