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Port 710 (entrust-ash)

IANA assigns port 710 to entrust-ash: Entrust Administration Service Handler.

Well-known (system) port, 0-1023 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
entrust-ash TCP Entrust Administration Service Handler Peter Whittaker -
entrust-ash UDP Entrust Administration Service Handler Peter Whittaker -

Check what is listening on port 710

Linux: is anything listening on TCP 710?
sudo ss -tlnp 'sport = :710'
Linux: UDP 710
sudo ss -ulnp 'sport = :710'
Linux / macOS: which process owns the port
sudo lsof -nP -i :710
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':710 '
Windows (Command Prompt)
netstat -ano | findstr :710
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 710 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 710
From Windows
Test-NetConnection HOST -Port 710
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 710

Block port 710 in the firewall

ufw
sudo ufw deny 710/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 710 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 710 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 710' -Direction Inbound -Protocol TCP -LocalPort 710 -Action Block
ufw
sudo ufw deny 710/udp
iptables
sudo iptables -A INPUT -p udp --dport 710 -j DROP
nftables
sudo nft add rule inet filter input udp dport 710 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 710' -Direction Inbound -Protocol UDP -LocalPort 710 -Action Block

Related ports

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