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Port 2849 (fxp)

IANA assigns port 2849 to fxp: FXP.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
fxp TCP FXP Martin Lichtin -
fxp UDP FXP Martin Lichtin -

Check what is listening on port 2849

Linux: is anything listening on TCP 2849?
sudo ss -tlnp 'sport = :2849'
Linux: UDP 2849
sudo ss -ulnp 'sport = :2849'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2849
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2849 '
Windows (Command Prompt)
netstat -ano | findstr :2849
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2849 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2849
From Windows
Test-NetConnection HOST -Port 2849
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2849

Block port 2849 in the firewall

ufw
sudo ufw deny 2849/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2849 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2849 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2849' -Direction Inbound -Protocol TCP -LocalPort 2849 -Action Block
ufw
sudo ufw deny 2849/udp
iptables
sudo iptables -A INPUT -p udp --dport 2849 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2849 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2849' -Direction Inbound -Protocol UDP -LocalPort 2849 -Action Block

Related ports

286fxp2847aimpp-port-req2848amt-blc-port2850metaconsole2851webemshttp

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