Port 3314 (uohost)

IANA assigns port 3314 to uohost: Unify Object Host.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference

uohost TCP Unify Object Host Daegis Inc -

uohost UDP Unify Object Host Daegis Inc -

Registry dates for this port: last modified 2012-07-31.

Linux: is anything listening on TCP 3314?

sudo ss -tlnp 'sport = :3314'

Linux: UDP 3314

sudo ss -ulnp 'sport = :3314'

Linux / macOS: which process owns the port

sudo lsof -nP -i :3314

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':3314 '

Windows (Command Prompt)

netstat -ano | findstr :3314

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3314 -State Listen | Select LocalAddress,OwningProcess

From another machine

nc -vz -w 5 HOST 3314

From Windows

Test-NetConnection HOST -Port 3314

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

nc -vzu -w 5 HOST 3314

ufw

sudo ufw deny 3314/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 3314 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 3314 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 3314' -Direction Inbound -Protocol TCP -LocalPort 3314 -Action Block

ufw

sudo ufw deny 3314/udp

iptables

sudo iptables -A INPUT -p udp --dport 3314 -j DROP

nftables

sudo nft add rule inet filter input udp dport 3314 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block UDP 3314' -Direction Inbound -Protocol UDP -LocalPort 3314 -Action Block

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