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Port 1957 (unix-status)

IANA assigns port 1957 to unix-status.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
unix-status TCP unix-status Thomas Erskine -
unix-status UDP unix-status Thomas Erskine -

Check what is listening on port 1957

Linux: is anything listening on TCP 1957?
sudo ss -tlnp 'sport = :1957'
Linux: UDP 1957
sudo ss -ulnp 'sport = :1957'
Linux / macOS: which process owns the port
sudo lsof -nP -i :1957
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':1957 '
Windows (Command Prompt)
netstat -ano | findstr :1957
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1957 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 1957
From Windows
Test-NetConnection HOST -Port 1957
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 1957

Block port 1957 in the firewall

ufw
sudo ufw deny 1957/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 1957 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 1957 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 1957' -Direction Inbound -Protocol TCP -LocalPort 1957 -Action Block
ufw
sudo ufw deny 1957/udp
iptables
sudo iptables -A INPUT -p udp --dport 1957 -j DROP
nftables
sudo nft add rule inet filter input udp dport 1957 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 1957' -Direction Inbound -Protocol UDP -LocalPort 1957 -Action Block

Related ports

1955abr-secure1956vrtl-vmf-ds1958dxadmind1959simp-all

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