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Port 11235 (xcompute)

IANA assigns port 11235 to xcompute: numerical systems messaging.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference
xcompute TCP numerical systems messaging Xplicit Computing Inc -
xcompute SCTP numerical systems messaging Xplicit Computing Inc -

Registry dates for this port: registered 2020-10-16.

Check what is listening on port 11235

Linux: is anything listening on TCP 11235?
sudo ss -tlnp 'sport = :11235'
Linux / macOS: which process owns the port
sudo lsof -nP -i :11235
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':11235 '
Windows (Command Prompt)
netstat -ano | findstr :11235
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 11235 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 11235
From Windows
Test-NetConnection HOST -Port 11235

Block port 11235 in the firewall

ufw
sudo ufw deny 11235/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 11235 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 11235 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 11235' -Direction Inbound -Protocol TCP -LocalPort 11235 -Action Block

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11208wifree11211memcached11319imip11320imip-channels

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Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.