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Port 1088 (cplscrambler-al)

IANA assigns port 1088 to cplscrambler-al: CPL Scrambler Alarm Log.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
cplscrambler-al TCP CPL Scrambler Alarm Log Richard Corn -
cplscrambler-al UDP CPL Scrambler Alarm Log Richard Corn -

Check what is listening on port 1088

Linux: is anything listening on TCP 1088?
sudo ss -tlnp 'sport = :1088'
Linux: UDP 1088
sudo ss -ulnp 'sport = :1088'
Linux / macOS: which process owns the port
sudo lsof -nP -i :1088
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':1088 '
Windows (Command Prompt)
netstat -ano | findstr :1088
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1088 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 1088
From Windows
Test-NetConnection HOST -Port 1088
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 1088

Block port 1088 in the firewall

ufw
sudo ufw deny 1088/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 1088 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 1088 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 1088' -Direction Inbound -Protocol TCP -LocalPort 1088 -Action Block
ufw
sudo ufw deny 1088/udp
iptables
sudo iptables -A INPUT -p udp --dport 1088 -j DROP
nftables
sudo nft add rule inet filter input udp dport 1088 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 1088' -Direction Inbound -Protocol UDP -LocalPort 1088 -Action Block

Related ports

1086cplscrambler-lg1087cplscrambler-in1089ff-annunc1090ff-fms

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