HTTPfy

Port 2790 (plgproxy)

IANA assigns port 2790 to plgproxy: PLG Proxy.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
plgproxy TCP PLG Proxy Charlie Hava -
plgproxy UDP PLG Proxy Charlie Hava -

Check what is listening on port 2790

Linux: is anything listening on TCP 2790?
sudo ss -tlnp 'sport = :2790'
Linux: UDP 2790
sudo ss -ulnp 'sport = :2790'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2790
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2790 '
Windows (Command Prompt)
netstat -ano | findstr :2790
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2790 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2790
From Windows
Test-NetConnection HOST -Port 2790
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2790

Block port 2790 in the firewall

ufw
sudo ufw deny 2790/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2790 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2790 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2790' -Direction Inbound -Protocol TCP -LocalPort 2790 -Action Block
ufw
sudo ufw deny 2790/udp
iptables
sudo iptables -A INPUT -p udp --dport 2790 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2790 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2790' -Direction Inbound -Protocol UDP -LocalPort 2790 -Action Block

Related ports

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