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Port 3617 (sharp-server)

IANA assigns port 3617 to sharp-server: ATI SHARP Logic Engine.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
sharp-server TCP ATI SHARP Logic Engine Bill Reveile -
sharp-server UDP ATI SHARP Logic Engine Bill Reveile -

Check what is listening on port 3617

Linux: is anything listening on TCP 3617?
sudo ss -tlnp 'sport = :3617'
Linux: UDP 3617
sudo ss -ulnp 'sport = :3617'
Linux / macOS: which process owns the port
sudo lsof -nP -i :3617
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':3617 '
Windows (Command Prompt)
netstat -ano | findstr :3617
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3617 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 3617
From Windows
Test-NetConnection HOST -Port 3617
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 3617

Block port 3617 in the firewall

ufw
sudo ufw deny 3617/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 3617 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 3617 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 3617' -Direction Inbound -Protocol TCP -LocalPort 3617 -Action Block
ufw
sudo ufw deny 3617/udp
iptables
sudo iptables -A INPUT -p udp --dport 3617 -j DROP
nftables
sudo nft add rule inet filter input udp dport 3617 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 3617' -Direction Inbound -Protocol UDP -LocalPort 3617 -Action Block

Related ports

3615start-network3616cd3o-protocol3618aairnet-13619aairnet-2

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