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Port 3064 (rprt)

IANA assigns port 3064 to rprt: Remote Port Redirector.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
rprt TCP Remote Port Redirector Robin Johnston -
rprt UDP Remote Port Redirector Robin Johnston -

Check what is listening on port 3064

Linux: is anything listening on TCP 3064?
sudo ss -tlnp 'sport = :3064'
Linux: UDP 3064
sudo ss -ulnp 'sport = :3064'
Linux / macOS: which process owns the port
sudo lsof -nP -i :3064
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':3064 '
Windows (Command Prompt)
netstat -ano | findstr :3064
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3064 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 3064
From Windows
Test-NetConnection HOST -Port 3064
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 3064

Block port 3064 in the firewall

ufw
sudo ufw deny 3064/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 3064 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 3064 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 3064' -Direction Inbound -Protocol TCP -LocalPort 3064 -Action Block
ufw
sudo ufw deny 3064/udp
iptables
sudo iptables -A INPUT -p udp --dport 3064 -j DROP
nftables
sudo nft add rule inet filter input udp dport 3064 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 3064' -Direction Inbound -Protocol UDP -LocalPort 3064 -Action Block

Related ports

3062ncacn-ip-tcp3063ncadg-ip-udp3065slinterbase3066netattachsdmp

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