To enable debugging and generate the CDT:

1. Connect to IWSVA via SSH as the "root" user.
2. Activate the debug mode:
   1. Open the /var/iwss/intscan.ini file using a text editor.
   2. Look for the following entry:

      [http]
      #Switch for debug log
      # 1 -> turn on
      # 0 -> turn off
      verbose=0

   3. Change the verbose line to "1" so that the entry should look like:

      [http]
      #Switch for debug log
      # 1 -> turn on
      # 0 -> turn off
      verbose=1

   Note: If you need to do the same for FTP, look for the same section for this protocol, which starts with [ftp] and provide the same option to turn on verbose mode.

3. Restart IWSS deamon by using the following commands:

   /var/iwss/S99ISproxy stop
   /var/iwss/S99ISproxy start

    

   For FTP, replace S99S99ISproxy with S99ISftp in the command above.

    
4. From the shell, capture network traffic using the following command where ddmmyy is for the date of the capture.

   # tcpdump -s0 -i eth0 -w /tmp/iwsva_debug_ddmmyy.pcap

5. Stop capturing the network traffic from the appliance and save the files by pressing CTRL + C. This will save the .pcap file created in point 3 as described above (i.e. /tmp/iwsva_debug_ddmmyy.pcap).
6. Launch the CDT using by running the following command:

   # su iscan -c "/var/iwss/CDT_IWSS.sh -d /var/iwss/UserDumps"

7. Check the CDT output saved in the folder /var/iwss/UserDumps. The file format will appear as: Info_<date>_<Timestamp>.tar.gz.

    

   To get the file, connect to IWSVA using WinSCP over SCP protocol. Use the root account.

    
8. Revert the change made by disabling the verbose logging level:
   1. Open the /var/iwss/intscan.ini file using a text editor.
   2. Look for the following entry:

      [http]
      #Switch for debug log
      # 1 -> turn on
      # 0 -> turn off
      verbose=1

   3. Change the verbose line to "0" so that the entry should look like:

      [http]
      #Switch for debug log
      # 1 -> turn on
      # 0 -> turn off
      verbose=0

9. Restart IWSS deamon using the following commands:

   /var/iwss/S99ISproxy stop
   /var/iwss/S99ISproxy start

    

   For FTP, replace S99S99ISproxy with S99ISftp in the command above.