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Port 5152 (sde-discovery)

IANA assigns port 5152 to sde-discovery: ESRI SDE Instance Discovery.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
sde-discovery TCP ESRI SDE Instance Discovery Peter Aronson -
sde-discovery UDP ESRI SDE Instance Discovery Peter Aronson -

Check what is listening on port 5152

Linux: is anything listening on TCP 5152?
sudo ss -tlnp 'sport = :5152'
Linux: UDP 5152
sudo ss -ulnp 'sport = :5152'
Linux / macOS: which process owns the port
sudo lsof -nP -i :5152
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':5152 '
Windows (Command Prompt)
netstat -ano | findstr :5152
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 5152 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 5152
From Windows
Test-NetConnection HOST -Port 5152
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 5152

Block port 5152 in the firewall

ufw
sudo ufw deny 5152/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 5152 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 5152 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 5152' -Direction Inbound -Protocol TCP -LocalPort 5152 -Action Block
ufw
sudo ufw deny 5152/udp
iptables
sudo iptables -A INPUT -p udp --dport 5152 -j DROP
nftables
sudo nft add rule inet filter input udp dport 5152 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 5152' -Direction Inbound -Protocol UDP -LocalPort 5152 -Action Block

Related ports

5150atmp5151esri-sde, esri_sde5154bzflag5155asctrl-agent

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