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Port 5315 (hacl-poll)

IANA assigns port 5315 to hacl-poll: HA Cluster UDP Polling.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
hacl-poll TCP HA Cluster UDP Polling Hoa Nguyen -
hacl-poll UDP HA Cluster UDP Polling Hoa Nguyen -

Check what is listening on port 5315

Linux: is anything listening on TCP 5315?
sudo ss -tlnp 'sport = :5315'
Linux: UDP 5315
sudo ss -ulnp 'sport = :5315'
Linux / macOS: which process owns the port
sudo lsof -nP -i :5315
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':5315 '
Windows (Command Prompt)
netstat -ano | findstr :5315
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 5315 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 5315
From Windows
Test-NetConnection HOST -Port 5315
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 5315

Block port 5315 in the firewall

ufw
sudo ufw deny 5315/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 5315 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 5315 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 5315' -Direction Inbound -Protocol TCP -LocalPort 5315 -Action Block
ufw
sudo ufw deny 5315/udp
iptables
sudo iptables -A INPUT -p udp --dport 5315 -j DROP
nftables
sudo nft add rule inet filter input udp dport 5315 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 5315' -Direction Inbound -Protocol UDP -LocalPort 5315 -Action Block

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