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Port 2800 (acc-raid)

IANA assigns port 2800 to acc-raid: ACC RAID.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
acc-raid TCP ACC RAID Scott St Clair -
acc-raid UDP ACC RAID Scott St Clair -

Check what is listening on port 2800

Linux: is anything listening on TCP 2800?
sudo ss -tlnp 'sport = :2800'
Linux: UDP 2800
sudo ss -ulnp 'sport = :2800'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2800
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2800 '
Windows (Command Prompt)
netstat -ano | findstr :2800
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2800 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2800
From Windows
Test-NetConnection HOST -Port 2800
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2800

Block port 2800 in the firewall

ufw
sudo ufw deny 2800/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2800 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2800 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2800' -Direction Inbound -Protocol TCP -LocalPort 2800 -Action Block
ufw
sudo ufw deny 2800/udp
iptables
sudo iptables -A INPUT -p udp --dport 2800 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2800 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2800' -Direction Inbound -Protocol UDP -LocalPort 2800 -Action Block

Related ports

2798tmesis-upshot2799icon-discover2801igcp2802veritas-tcp1, veritas-udp1

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