HTTPfy

Port 6513 (netconf-tls)

IANA assigns port 6513 to netconf-tls: NETCONF over TLS.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference
netconf-tls TCP NETCONF over TLS IESG RFC 7589, RFC 9918

Registry dates for this port: last modified 2024-01-24.

Check what is listening on port 6513

Linux: is anything listening on TCP 6513?
sudo ss -tlnp 'sport = :6513'
Linux / macOS: which process owns the port
sudo lsof -nP -i :6513
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':6513 '
Windows (Command Prompt)
netstat -ano | findstr :6513
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 6513 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 6513
From Windows
Test-NetConnection HOST -Port 6513

Block port 6513 in the firewall

ufw
sudo ufw deny 6513/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 6513 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 6513 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 6513' -Direction Inbound -Protocol TCP -LocalPort 6513 -Action Block

Related ports

6510mcer-port6511dccp-udp6514Syslog over TLS6515elipse-rec

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