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Port 5634 (xprtld)

IANA assigns port 5634 to xprtld: SF Message Service.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
xprtld TCP SF Message Service VR Satish -
xprtld UDP SF Message Service VR Satish -

Registry dates for this port: registered 2007-08-16.

Check what is listening on port 5634

Linux: is anything listening on TCP 5634?
sudo ss -tlnp 'sport = :5634'
Linux: UDP 5634
sudo ss -ulnp 'sport = :5634'
Linux / macOS: which process owns the port
sudo lsof -nP -i :5634
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':5634 '
Windows (Command Prompt)
netstat -ano | findstr :5634
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 5634 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 5634
From Windows
Test-NetConnection HOST -Port 5634
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 5634

Block port 5634 in the firewall

ufw
sudo ufw deny 5634/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 5634 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 5634 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 5634' -Direction Inbound -Protocol TCP -LocalPort 5634 -Action Block
ufw
sudo ufw deny 5634/udp
iptables
sudo iptables -A INPUT -p udp --dport 5634 -j DROP
nftables
sudo nft add rule inet filter input udp dport 5634 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 5634' -Direction Inbound -Protocol UDP -LocalPort 5634 -Action Block

Related ports

5632pcanywherestat5633beorl5635sfmsso5636sfm-db-server

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