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Port 6515 (elipse-rec)

IANA assigns port 6515 to elipse-rec: Elipse RPC Protocol.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
elipse-rec TCP Elipse RPC Protocol F Englert -
elipse-rec UDP Elipse RPC Protocol F Englert -

Registry dates for this port: registered 2007-09-17.

Check what is listening on port 6515

Linux: is anything listening on TCP 6515?
sudo ss -tlnp 'sport = :6515'
Linux: UDP 6515
sudo ss -ulnp 'sport = :6515'
Linux / macOS: which process owns the port
sudo lsof -nP -i :6515
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':6515 '
Windows (Command Prompt)
netstat -ano | findstr :6515
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 6515 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 6515
From Windows
Test-NetConnection HOST -Port 6515
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 6515

Block port 6515 in the firewall

ufw
sudo ufw deny 6515/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 6515 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 6515 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 6515' -Direction Inbound -Protocol TCP -LocalPort 6515 -Action Block
ufw
sudo ufw deny 6515/udp
iptables
sudo iptables -A INPUT -p udp --dport 6515 -j DROP
nftables
sudo nft add rule inet filter input udp dport 6515 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 6515' -Direction Inbound -Protocol UDP -LocalPort 6515 -Action Block

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Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.