Network ports

Ports that will be opened on cluster nodes depend on services that will run on the node and traffic types associated with them. Before enabling a specific service on a cluster node, you need to assign the respective traffic type to a network this node is connected to. Assigning a traffic type to a network configures a firewall on nodes connected to this network, opens specific ports on node network interfaces, and sets the necessary iptables rules.

The table below lists all the required ports and services associated with them:

Service	Traffic type	Port	Description
Web control panel	Admin panel1 Ports for this traffic type must only be open on management nodes.	TCP 8888	External access to the admin panel.
	Self-service panel	TCP 8800	External access to the self-service panel.
Management	Internal management	any available port	Internal cluster management and transfers of node monitoring data to the admin panel.
Metadata service	Storage	any available port	Internal communication between MDS services, as well as with chunks services and clients.
Chunk service		any available port	Internal communication with MDS services and clients.
Client		any available port	Internal communication with MDS and chunk services.
Backup Gateway	Backup (ABGW) public	TCP 40440, 44445	External data exchange with Acronis Cyber Protect agents and Acronis Cyber Protect Cloud.
	Backup (ABGW) private	any available port	Internal management of and data exchange between multiple backup storage services.
iSCSI	iSCSI	TCP 3260	External data exchange with the iSCSI access point.
S3	S3 public	TCP 80, 443	External data exchange with the S3 access point.
	OSTOR private	any available port	Internal data exchange between multiple S3 services.
NFS	NFS	TCP/UDP 111, 892, 2049	External data exchange with the NFS access point.
	OSTOR private	any available port	Internal data exchange between multiple NFS services.
Compute	Compute API2 Ports for this traffic type must only be open on management nodes.		External access to standard OpenStack API endpoints:
		TCP 5000	Identity API v3
		TCP 6080	noVNC Websocket Proxy
		TCP 8004	Orchestration Service API v1
		TCP 8041	Gnocchi API (billing metering service)
		TCP 8774	Compute API
		TCP 8776	Block Storage API v3
		TCP 8780	Placement API
		TCP 9292	Image Service API v2
		TCP 9313	Key Manager API v1
		TCP 9513	Container Infrastructure Management API (Kubernetes service)
		TCP 9696	Networking API v2
		TCP 9888	Octavia API v2 (load balancer service)
	VM private	UDP 4789	Network traffic between VMs in compute virtual networks.
		TCP 15900–16900	VNC console traffic.
	VM backups	TCP 49300–65535	External access to NBD endpoints.
SSH	SSH	TCP 22	Remote access to nodes via SSH.
SNMP	SNMP3 Ports for this traffic type must only be open on management nodes.	UDP 161	External access to storage cluster monitoring statistics via the SNMP protocol.