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Port 3335 (directv-soft)

IANA assigns port 3335 to directv-soft: Direct TV Software Updates.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
directv-soft TCP Direct TV Software Updates - -
directv-soft UDP Direct TV Software Updates - -

Check what is listening on port 3335

Linux: is anything listening on TCP 3335?
sudo ss -tlnp 'sport = :3335'
Linux: UDP 3335
sudo ss -ulnp 'sport = :3335'
Linux / macOS: which process owns the port
sudo lsof -nP -i :3335
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':3335 '
Windows (Command Prompt)
netstat -ano | findstr :3335
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3335 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 3335
From Windows
Test-NetConnection HOST -Port 3335
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 3335

Block port 3335 in the firewall

ufw
sudo ufw deny 3335/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 3335 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 3335 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 3335' -Direction Inbound -Protocol TCP -LocalPort 3335 -Action Block
ufw
sudo ufw deny 3335/udp
iptables
sudo iptables -A INPUT -p udp --dport 3335 -j DROP
nftables
sudo nft add rule inet filter input udp dport 3335 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 3335' -Direction Inbound -Protocol UDP -LocalPort 3335 -Action Block

Related ports

3333dec-notes3334directv-web3336directv-tick3337directv-catlg

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