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Version: v8

Servers

Configuring Application Servers to which WAF will forward the Traffic.

Overview​

Configuration of upstream servers in a server group can be modified on-the-fly by using Servers.

Servers

Servers

How to Use :​

1.Go to WAF > Listeners > Server Groups > Servers

2.Click Add Server and configure it with basic and advanced configuration.

3.Set the configurations and Save Changes

Description:​

Server​

This option allows user to specify the IP address for the server for serving the request for the application.

    Accepted values: IP

    Default: Blank
Port​

This option allows user to set the port for the back-end application server for communication.

    Accepted values: Integer

    Max: 65535

    Min: 0

    Default: 80
DNS Record Type​

It is used to map domain names to various types of data such as IP addresses and services.

    Accepted values: ANY / A Record / AAAA Record

    Default: ANY
Weight​

This option allows user to specify the weight of the server. Higher the weight more requests will be served by that server.

    Accepted values: Integer

    Max: 100

    Min:  1

    Default: 1
Remote​

This option allows user to specify if the server can be accessed remotely or not.

    Accepted values: True / False

    Default: False
Monitor​

This option allows user to select from the monitors created. Monitors help in monitoring the health of the server.

    Accepted values: Select Existing monitor

    Default: None
Backup​

This option allows user to specify if backup is allowed for the server. In case of primary failure, the backup will be up and running.

    Accepted values: True / False

    Default: False
Mode​

This option allows user to make the server active/inactive. When marked Down the server will not be able to serve requests.

    Accepted values: Ready / Down / Gracefully Down

    Default: Ready

  1. Ready - If the user has set the Ready value in this option then server will take part actively in handling the client requests.

  2. Down - If the user has set the Down value in this option then server will not take part actively in handling the client requests.

  3. Gracefully Down - Gracefully Down option will ensure no active connection will be break during the server down activity, server will be handling the old connection until con-current connection count reach to 0. WAF will slowly drain out the connections, and once con-current connection count becomes 0 then server will be marked as down at WAF level. Hence, with the help this option, user can gracefully down any server.

Slow Start​

This option allows user to specify the Slow Start for the server.

    Accepted values: Integer

    Default: 0
Max Connection​

This option allows user to specify the number of maximum connections allowed to the specific server.

    Accepted values: Integer

    Default: 0
Connection Timeout​

This option allows user to specify the connection timeout for the server.

    Accepted values: Integer

    Max: 1000000

    Min: 0 

    Default: 0 

    Metrics: Seconds
Send Timeout​

This option allows user to specify to send timeout for the server.

    Accepted values: Integer

    Max: 1000000

    Min: 0 

    Default: 0 

    Metrics: Seconds
Read Timeout​

This option allows user to specify the read timeout for the server.

    Accepted values: Integer

    Max: 1000000

    Min: 0

    Default: 0 

    Metrics: Seconds