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Port 2310 (sdclient)

IANA assigns port 2310 to sdclient: SD Client.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
sdclient TCP SD Client Jeurgen Broesamle -
sdclient UDP SD Client Jeurgen Broesamle -

Check what is listening on port 2310

Linux: is anything listening on TCP 2310?
sudo ss -tlnp 'sport = :2310'
Linux: UDP 2310
sudo ss -ulnp 'sport = :2310'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2310
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2310 '
Windows (Command Prompt)
netstat -ano | findstr :2310
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2310 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2310
From Windows
Test-NetConnection HOST -Port 2310
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2310

Block port 2310 in the firewall

ufw
sudo ufw deny 2310/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2310 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2310 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2310' -Direction Inbound -Protocol TCP -LocalPort 2310 -Action Block
ufw
sudo ufw deny 2310/udp
iptables
sudo iptables -A INPUT -p udp --dport 2310 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2310 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2310' -Direction Inbound -Protocol UDP -LocalPort 2310 -Action Block

Related ports

2308sdhelp2309sdserver2311messageservice2312wanscaler

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