Web server logging

Last published : Sep 30, 2026
You can use the Web server logging feature to send logs of HTTP and HTTPS requests to a client system for storage and retrieval. This feature has two components:
  • The Web log server, which runs on the NetScaler.
  • The NetScaler Web Logging (NSWL) client, which runs on the client system.
When you run the NetScaler Web Logging (NSWL) client:
  1. It connects to the NetScaler.
  2. The NetScaler buffers the HTTP and HTTPS request log entries before sending them to the client.
  3. The client can filter the entries before storing them.
Related information
System
Configuring the NetScaler for web server loggingInstalling the NetScaler web logging (NSWL) clientConfigure NSWL clientCustomize logging on the NSWL client system

Configure web server logging

To configure web server logging, follow these steps:
  1. Enable the Web logging feature on the NetScaler and configure the buffer size for temporarily storing log entries.
  2. Ensure that TCP port 3011 is open between the NetScaler IP (NSIP) address and Web logging clients, especially if there is a firewall between them.
  3. Install the NSWL client on the client system.
  4. Add the NetScaler IP address (NSIP) to the NSWL configuration file.
  5. Start the NSWL client to begin logging.
  6. Customize web server logging by modifying the necessary entries in the NSWL configuration file (log.conf).