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Port 2168 (easy-soft-mux)

IANA assigns port 2168 to easy-soft-mux: easy-soft Multiplexer.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
easy-soft-mux TCP easy-soft Multiplexer Norbert Kintzler -
easy-soft-mux UDP easy-soft Multiplexer Norbert Kintzler -

Registry dates for this port: registered 2004-11.

Check what is listening on port 2168

Linux: is anything listening on TCP 2168?
sudo ss -tlnp 'sport = :2168'
Linux: UDP 2168
sudo ss -ulnp 'sport = :2168'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2168
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2168 '
Windows (Command Prompt)
netstat -ano | findstr :2168
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2168 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2168
From Windows
Test-NetConnection HOST -Port 2168
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2168

Block port 2168 in the firewall

ufw
sudo ufw deny 2168/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2168 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2168 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2168' -Direction Inbound -Protocol TCP -LocalPort 2168 -Action Block
ufw
sudo ufw deny 2168/udp
iptables
sudo iptables -A INPUT -p udp --dport 2168 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2168 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2168' -Direction Inbound -Protocol UDP -LocalPort 2168 -Action Block

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Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.