- 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.
Port 2023:
Port 2023 is assigned by IANA to xinuexpansion3 ().
2023
How xinuexpansion3 works
Other servicesThe client sends a request to port 2023 and the xinuexpansion3 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
Is port 2023 dangerous?
We have no specific security note for port 2023. Its risk depends on the program actually listening on it. General advice for other services services:
IANA registry entries for port 2023
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| xinuexpansion3 | 2023 | TCP, UDP | - | - |
// source: IANA service name and port number registry
Which program uses port 2023, and is it reachable?
Linux
sudo ss -ltnup 'sport = :2023' # process listening on 2023
sudo lsof -nP -i :2023macOS
sudo lsof -nP -i :2023
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2023 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 2023 netstat -ano | findstr :2023
From another machine
nmap -p 2023 -sV <host> sudo nmap -sU -p 2023 <host> nc -zv <host> 2023
Block it in the firewall
sudo ufw deny 2023/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 2023" -Direction Inbound -LocalPort 2023 -Protocol TCP -Action Block # Windows
What is port 2023 used for?
Port 2023 is assigned by IANA to xinuexpansion3 ().
Is port 2023 TCP or UDP?
Port 2023 is registered for TCP and UDP.
Is it safe to open port 2023?
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 2023 is open?
On Linux run "ss -ltnup 'sport = :2023'", on macOS "lsof -nP -i :2023", and on Windows "netstat -ano | findstr :2023" to see the local process. From another machine, "nmap -p 2023 <host>" shows whether it is reachable.
Other other services ports
: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