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Port 7981 (sossd-collect)

IANA assigns port 7981 to sossd-collect: Spotlight on SQL Server Desktop Collect.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference
sossd-collect TCP Spotlight on SQL Server Desktop Collect Rob Griffin 2 -

Registry dates for this port: registered 2010-08-30.

Check what is listening on port 7981

Linux: is anything listening on TCP 7981?
sudo ss -tlnp 'sport = :7981'
Linux / macOS: which process owns the port
sudo lsof -nP -i :7981
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':7981 '
Windows (Command Prompt)
netstat -ano | findstr :7981
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 7981 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 7981
From Windows
Test-NetConnection HOST -Port 7981

Block port 7981 in the firewall

ufw
sudo ufw deny 7981/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 7981 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 7981 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 7981' -Direction Inbound -Protocol TCP -LocalPort 7981 -Action Block

Related ports

7979micromuse-ncps7980quest-vista7982sossd-agent, sossd-disc7997pushns

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