Port 5151 (esri-sde, esri_sde)

IANA assigns port 5151 to esri-sde, esri_sde: ESRI SDE Instance IANA assigned this well-formed service name as a replacement for "esri_sde"..

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference

esri-sde TCP ESRI SDE Instance IANA assigned this well-formed service name as a replacement for "esri_sde". Peter Aronson -

esri_sde TCP ESRI SDE Instance
This entry is an alias to "esri-sde". This entry is now historic, not usable for use with many common service discovery mechanisms. Peter Aronson -

esri-sde UDP ESRI SDE Remote Start IANA assigned this well-formed service name as a replacement for "esri_sde". Peter Aronson -

esri_sde UDP ESRI SDE Remote Start
This entry is an alias to "esri-sde". This entry is now historic, not usable for use with many common service discovery mechanisms. Peter Aronson -

Check what is listening on port 5151

Linux: is anything listening on TCP 5151?

sudo ss -tlnp 'sport = :5151'

Linux: UDP 5151

sudo ss -ulnp 'sport = :5151'

Linux / macOS: which process owns the port

sudo lsof -nP -i :5151

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':5151 '

Windows (Command Prompt)

netstat -ano | findstr :5151

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5151 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine

nc -vz -w 5 HOST 5151

From Windows

Test-NetConnection HOST -Port 5151

UDP probe (no reply does not prove it is closed)

nc -vzu -w 5 HOST 5151

Block port 5151 in the firewall

ufw

sudo ufw deny 5151/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 5151 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 5151 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 5151' -Direction Inbound -Protocol TCP -LocalPort 5151 -Action Block

ufw

sudo ufw deny 5151/udp