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     1  ---
     2  layout: "docs"
     3  page_title: "Required Ports"
     4  sidebar_current: "docs-install-ports"
     5  description: |-
     6    Before starting Consul it is important to have the necessary bind ports accessible.
     7  ---
     8  
     9  # Required Ports
    10  
    11  Before running Consul, you should ensure the following bind ports are accessible. 
    12  
    13  
    14  |  Use                              | Default Ports    | 
    15  | --------------------------------- | ---------------- |
    16  | DNS: The DNS server               | 8600             |
    17  | HTTP: The HTTP API                | 8500             |
    18  | HTTPS: The HTTPs API              | disabled (8501)* | 
    19  | gRPC: The gRPC API                | disabled (8502)* | 
    20  | LAN Serf: The Serf LAN port.      | 8301             | 
    21  | Wan Serf: The Serf WAN port       | 8302             |
    22  | server: Server RPC address        | 8300             | 
    23  | Sidecar Proxy Min: Inclusive min port number to use for automatically assigned sidecar service registrations.   | 21000            | 
    24  | Sidecar Proxy Max: Inclusive max port number to use for automatically assigned sidecar service registrations. | 21255            | 
    25  
    26  *For `HTTPS` and `gRPC` the ports specified in the table 
    27  are recommendations.
    28  
    29  Note, the default ports can be changed in the [agent configuration](/docs/agent/options.html#ports).