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Port 7962 (generalsync)

IANA assigns port 7962 to generalsync: Encrypted, extendable, general-purpose synchronization protocol.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
generalsync TCP Encrypted, extendable, general-purpose synchronization protocol Dirk Steinmetz -
generalsync UDP Encrypted, extendable, general-purpose synchronization protocol Dirk Steinmetz -

Registry dates for this port: registered 2014-04-17.

Check what is listening on port 7962

Linux: is anything listening on TCP 7962?
sudo ss -tlnp 'sport = :7962'
Linux: UDP 7962
sudo ss -ulnp 'sport = :7962'
Linux / macOS: which process owns the port
sudo lsof -nP -i :7962
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':7962 '
Windows (Command Prompt)
netstat -ano | findstr :7962
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 7962 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 7962
From Windows
Test-NetConnection HOST -Port 7962
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 7962

Block port 7962 in the firewall

ufw
sudo ufw deny 7962/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 7962 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 7962 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 7962' -Direction Inbound -Protocol TCP -LocalPort 7962 -Action Block
ufw
sudo ufw deny 7962/udp
iptables
sudo iptables -A INPUT -p udp --dport 7962 -j DROP
nftables
sudo nft add rule inet filter input udp dport 7962 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 7962' -Direction Inbound -Protocol UDP -LocalPort 7962 -Action Block

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