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Port 1048 (neod2)

IANA assigns port 1048 to neod2: Sun's NEO Object Request Broker.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
neod2 TCP Sun's NEO Object Request Broker Rohit Garg -
neod2 UDP Sun's NEO Object Request Broker Rohit Garg -

Check what is listening on port 1048

Linux: is anything listening on TCP 1048?
sudo ss -tlnp 'sport = :1048'
Linux: UDP 1048
sudo ss -ulnp 'sport = :1048'
Linux / macOS: which process owns the port
sudo lsof -nP -i :1048
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':1048 '
Windows (Command Prompt)
netstat -ano | findstr :1048
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1048 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 1048
From Windows
Test-NetConnection HOST -Port 1048
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 1048

Block port 1048 in the firewall

ufw
sudo ufw deny 1048/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 1048 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 1048 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 1048' -Direction Inbound -Protocol TCP -LocalPort 1048 -Action Block
ufw
sudo ufw deny 1048/udp
iptables
sudo iptables -A INPUT -p udp --dport 1048 -j DROP
nftables
sudo nft add rule inet filter input udp dport 1048 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 1048' -Direction Inbound -Protocol UDP -LocalPort 1048 -Action Block

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