# Web Server Advance Settings

As an administrator, you can configure the following advanced settings for the web server. The following rules and configuration instructions apply to the web server.

To configure advanced settings for the web server:

1. Under Security, click Web Server.

2. In the Configure Web Server page, click Advanced tab.

3. Under General the following is available:

   - Web Server displays the name of your web server.

   - Cipher Suite contains the default list of cipher strings separated by colons. You can edit the OpenSSL cipher list with one or more cipher strings. Ensure the strings are separated by colons and must begin with HIGH to maintain web server connectivity.

4. The Apache HTTP web server settings can be configured as following:

   Note: The advanced web server settings should only be modified as directed by application engineering guidelines or your application support team. The default values vary depending on the applications installed and the number of clients the installation is engineered to support.

   Field | Description
   --- | ---
   Maximum Number of Connections | Specifies the maximum number of simultaneous requests. Server resources are self-regulating up to the configured maximum number of connections. There is some benefit to lowering this value, as it caps the amount of server resources, such as memory consumed during heavy client usage periods. The default minimum value is 300. Note: Ensure you have sufficient RAM to set higher values, or the server may become unstable. For example, the average memory usage for a client connection may range from 2 to 4 MB.
   Keep-alive Timeout (seconds) | Specifies the time (in seconds) the server waits for the next request from a client on an existing, open connection before closing it. This helps to improve performance by reusing connections but prevents resource hogging.
   Maximum Keep-alive Requests | Specifies the maximum number of requests allowed per connection.
   Read Limit | Specifies the maximum number of simultaneous READ state connections per IP address. If this value is set to 0, this limit does not apply.
   Write Limit | Specifies the maximum number of simultaneous WRITE connections per IP address. If this value is set to 0, this limit does not apply.
   Other Limit | Specifies the maximum number of simultaneous idle connections per IP address. If this value is set to 0, this limit does not apply.
   Exception Clients | Specifies a space-separated list of IP addresses exempt from the above Read/Write/Other request state limits. If your client connections pass through a proxy, then they have the same source IP address. Adding that source IP address will bypass the request state limits, allowing full use of the configured maximum number of connections.

5. Click Save. The web server will be restarted on save to apply this change.

Parent topic: Web Server
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