Port 9695 (ccnx)

IANA assigns port 9695 to ccnx: Content Centric Networking.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference

ccnx TCP Content Centric Networking Van Jacobson 2, Simon Barber -

ccnx UDP Content Centric Networking Van Jacobson 2, Simon Barber -

Registry dates for this port: registered 2009-09-29.

Linux: is anything listening on TCP 9695?

sudo ss -tlnp 'sport = :9695'

Linux: UDP 9695

sudo ss -ulnp 'sport = :9695'

Linux / macOS: which process owns the port

sudo lsof -nP -i :9695

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':9695 '

Windows (Command Prompt)

netstat -ano | findstr :9695

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 9695 -State Listen | Select LocalAddress,OwningProcess

From another machine

nc -vz -w 5 HOST 9695

From Windows

Test-NetConnection HOST -Port 9695

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

nc -vzu -w 5 HOST 9695

ufw

sudo ufw deny 9695/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 9695 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 9695 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 9695' -Direction Inbound -Protocol TCP -LocalPort 9695 -Action Block

ufw

sudo ufw deny 9695/udp

iptables

sudo iptables -A INPUT -p udp --dport 9695 -j DROP

nftables

sudo nft add rule inet filter input udp dport 9695 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block UDP 9695' -Direction Inbound -Protocol UDP -LocalPort 9695 -Action Block

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