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Port 5050 (mmcc)

IANA assigns port 5050 to mmcc: multimedia conference control tool.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
mmcc TCP multimedia conference control tool Steve Casner -
mmcc UDP multimedia conference control tool Steve Casner -

Check what is listening on port 5050

Linux: is anything listening on TCP 5050?
sudo ss -tlnp 'sport = :5050'
Linux: UDP 5050
sudo ss -ulnp 'sport = :5050'
Linux / macOS: which process owns the port
sudo lsof -nP -i :5050
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':5050 '
Windows (Command Prompt)
netstat -ano | findstr :5050
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 5050 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 5050
From Windows
Test-NetConnection HOST -Port 5050
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 5050

Block port 5050 in the firewall

ufw
sudo ufw deny 5050/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 5050 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 5050 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 5050' -Direction Inbound -Protocol TCP -LocalPort 5050 -Action Block
ufw
sudo ufw deny 5050/udp
iptables
sudo iptables -A INPUT -p udp --dport 5050 -j DROP
nftables
sudo nft add rule inet filter input udp dport 5050 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 5050' -Direction Inbound -Protocol UDP -LocalPort 5050 -Action Block

Related ports

5048texai5049ivocalize5051ita-agent5052ita-manager

All port numbers · Open port checker
Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.