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Port 97 (swift-rvf)

IANA assigns port 97 to swift-rvf: Swift Remote Virtural File Protocol.

Well-known (system) port, 0-1023 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
swift-rvf TCP Swift Remote Virtural File Protocol Maurice R Turcotte -
swift-rvf UDP Swift Remote Virtural File Protocol Maurice R Turcotte -

Check what is listening on port 97

Linux: is anything listening on TCP 97?
sudo ss -tlnp 'sport = :97'
Linux: UDP 97
sudo ss -ulnp 'sport = :97'
Linux / macOS: which process owns the port
sudo lsof -nP -i :97
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':97 '
Windows (Command Prompt)
netstat -ano | findstr :97
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 97 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 97
From Windows
Test-NetConnection HOST -Port 97
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 97

Block port 97 in the firewall

ufw
sudo ufw deny 97/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 97 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 97 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 97' -Direction Inbound -Protocol TCP -LocalPort 97 -Action Block
ufw
sudo ufw deny 97/udp
iptables
sudo iptables -A INPUT -p udp --dport 97 -j DROP
nftables
sudo nft add rule inet filter input udp dport 97 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 97' -Direction Inbound -Protocol UDP -LocalPort 97 -Action Block

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