HTTPfy

Port 1771 (vaultbase)

IANA assigns port 1771 to vaultbase.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
vaultbase TCP vaultbase Jose A Sesin -
vaultbase UDP vaultbase Jose A Sesin -

Check what is listening on port 1771

Linux: is anything listening on TCP 1771?
sudo ss -tlnp 'sport = :1771'
Linux: UDP 1771
sudo ss -ulnp 'sport = :1771'
Linux / macOS: which process owns the port
sudo lsof -nP -i :1771
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':1771 '
Windows (Command Prompt)
netstat -ano | findstr :1771
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1771 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 1771
From Windows
Test-NetConnection HOST -Port 1771
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 1771

Block port 1771 in the firewall

ufw
sudo ufw deny 1771/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 1771 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 1771 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 1771' -Direction Inbound -Protocol TCP -LocalPort 1771 -Action Block
ufw
sudo ufw deny 1771/udp
iptables
sudo iptables -A INPUT -p udp --dport 1771 -j DROP
nftables
sudo nft add rule inet filter input udp dport 1771 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 1771' -Direction Inbound -Protocol UDP -LocalPort 1771 -Action Block

Related ports

1769bmc-net-adm1770bmc-net-svc1772essweb-gw1773kmscontrol

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