HTTPfy

Port 4395 (omnivisionesx)

IANA assigns port 4395 to omnivisionesx: OmniVision communication for Virtual environments.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
omnivisionesx TCP OmniVision communication for Virtual environments Vacquier Serge -
omnivisionesx UDP OmniVision communication for Virtual environments Vacquier Serge -

Registry dates for this port: registered 2009-02-12.

Check what is listening on port 4395

Linux: is anything listening on TCP 4395?
sudo ss -tlnp 'sport = :4395'
Linux: UDP 4395
sudo ss -ulnp 'sport = :4395'
Linux / macOS: which process owns the port
sudo lsof -nP -i :4395
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':4395 '
Windows (Command Prompt)
netstat -ano | findstr :4395
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 4395 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 4395
From Windows
Test-NetConnection HOST -Port 4395
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 4395

Block port 4395 in the firewall

ufw
sudo ufw deny 4395/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 4395 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 4395 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 4395' -Direction Inbound -Protocol TCP -LocalPort 4395 -Action Block
ufw
sudo ufw deny 4395/udp
iptables
sudo iptables -A INPUT -p udp --dport 4395 -j DROP
nftables
sudo nft add rule inet filter input udp dport 4395 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 4395' -Direction Inbound -Protocol UDP -LocalPort 4395 -Action Block

Related ports

4393apwi-rxspooler4394apwi-disc4396fly4400ds-srv

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