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Port 2975 (fjmpcm)

IANA assigns port 2975 to fjmpcm: Fujitsu Configuration Management Service.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
fjmpcm TCP Fujitsu Configuration Management Service Hiroki Kawano -
fjmpcm UDP Fujitsu Configuration Management Service Hiroki Kawano -

Check what is listening on port 2975

Linux: is anything listening on TCP 2975?
sudo ss -tlnp 'sport = :2975'
Linux: UDP 2975
sudo ss -ulnp 'sport = :2975'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2975
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2975 '
Windows (Command Prompt)
netstat -ano | findstr :2975
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2975 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2975
From Windows
Test-NetConnection HOST -Port 2975
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2975

Block port 2975 in the firewall

ufw
sudo ufw deny 2975/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2975 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2975 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2975' -Direction Inbound -Protocol TCP -LocalPort 2975 -Action Block
ufw
sudo ufw deny 2975/udp
iptables
sudo iptables -A INPUT -p udp --dport 2975 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2975 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2975' -Direction Inbound -Protocol UDP -LocalPort 2975 -Action Block

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2973svnetworks2974signal2976cns-srv-port2977ttc-etap-ns

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