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Port 2786 (aic-oncrpc)

IANA assigns port 2786 to aic-oncrpc: aic-oncrpc - Destiny MCD database.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
aic-oncrpc TCP aic-oncrpc - Destiny MCD database Brad Parker -
aic-oncrpc UDP aic-oncrpc - Destiny MCD database Brad Parker -

Check what is listening on port 2786

Linux: is anything listening on TCP 2786?
sudo ss -tlnp 'sport = :2786'
Linux: UDP 2786
sudo ss -ulnp 'sport = :2786'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2786
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2786 '
Windows (Command Prompt)
netstat -ano | findstr :2786
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2786 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2786
From Windows
Test-NetConnection HOST -Port 2786
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2786

Block port 2786 in the firewall

ufw
sudo ufw deny 2786/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2786 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2786 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2786' -Direction Inbound -Protocol TCP -LocalPort 2786 -Action Block
ufw
sudo ufw deny 2786/udp
iptables
sudo iptables -A INPUT -p udp --dport 2786 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2786 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2786' -Direction Inbound -Protocol UDP -LocalPort 2786 -Action Block

Related ports

2784www-dev2785aic-np2787piccolo2788fryeserv

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