HTTPfy

Port 35357 (openstack-id)

IANA assigns port 35357 to openstack-id: OpenStack ID Service.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference
openstack-id TCP OpenStack ID Service Rackspace Hosting -

Registry dates for this port: registered 2011-08-15.

Check what is listening on port 35357

Linux: is anything listening on TCP 35357?
sudo ss -tlnp 'sport = :35357'
Linux / macOS: which process owns the port
sudo lsof -nP -i :35357
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':35357 '
Windows (Command Prompt)
netstat -ano | findstr :35357
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 35357 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 35357
From Windows
Test-NetConnection HOST -Port 35357

Block port 35357 in the firewall

ufw
sudo ufw deny 35357/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 35357 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 35357 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 35357' -Direction Inbound -Protocol TCP -LocalPort 35357 -Action Block

Related ports

35355altova-lm, altova-lm-disc35356guttersnex36001allpeers36411wlcp

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