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Port 1107 (isoipsigport-2)

IANA assigns port 1107 to isoipsigport-2: ISOIPSIGPORT-2.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
isoipsigport-2 TCP ISOIPSIGPORT-2 Peter Egli -
isoipsigport-2 UDP ISOIPSIGPORT-2 Peter Egli -

Check what is listening on port 1107

Linux: is anything listening on TCP 1107?
sudo ss -tlnp 'sport = :1107'
Linux: UDP 1107
sudo ss -ulnp 'sport = :1107'
Linux / macOS: which process owns the port
sudo lsof -nP -i :1107
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':1107 '
Windows (Command Prompt)
netstat -ano | findstr :1107
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1107 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 1107
From Windows
Test-NetConnection HOST -Port 1107
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 1107

Block port 1107 in the firewall

ufw
sudo ufw deny 1107/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 1107 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 1107 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 1107' -Direction Inbound -Protocol TCP -LocalPort 1107 -Action Block
ufw
sudo ufw deny 1107/udp
iptables
sudo iptables -A INPUT -p udp --dport 1107 -j DROP
nftables
sudo nft add rule inet filter input udp dport 1107 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 1107' -Direction Inbound -Protocol UDP -LocalPort 1107 -Action Block

Related ports

1105ftranhc1106isoipsigport-11108ratio-adp1110webadmstart, nfsd-keepalive

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