When the IWSS/IWSVA gateway product is deployed, some users experience difficulty in getting the necessary updates. Since both Adobe and Microsoft products have become standard for corporate productivity applications, you need to ensure that the latest updates are applied when they are available via the web.
This issue may occur due to the special file handling feature of the HTTP scanning in IWSS/IWSVA. To prevent it from occurring, you can add the relevant URLs to the scan exception list.
IWSS 3.1 for Linux & IWSVA 5.6
- Create a backup copy of the /etc/iscan/intscan.ini file.
- Open the intscan.ini file in a text editor.
- Under [http], add the following to the "client_skip_content" parameter for Windows Update:
client_skip_content=Host: windowsupdate.microsoft.com,Host:
v5.windowsupdate.microsoft.com,Host:
v4.windowsupdate.microsoft.com,Host: download.windowsupdate.com,Host:
windowsupdate.com,Host: office.microsoft.com,Host:
update.microsoft.com,Host: www.download.windowsupdate.com
For Adobe Download Manager:
client_skip_content=Host: ardownload.adobe.com,Host:
download.adobe.com - Save and close the file.
- Run the following commands to restart the HTTP daemon:
#/etc/rc#.d/S99IWSS stop
#/etc/rc#.d/S99IWSS start
IWSS 3.1 for Windows
- Create a backup copy of the <IWSS installation folder>\intscan.ini file.
- Open the intscan.ini file in a text editor.
- Under [http], add the following to the "client_skip_content" parameter for Windows Update:
client_skip_content=Host: windowsupdate.microsoft.com,Host:
v5.windowsupdate.microsoft.com,Host:
v4.windowsupdate.microsoft.com,Host: download.windowsupdate.com,Host:
windowsupdate.com,Host: office.microsoft.com,Host:
update.microsoft.com,Host: www.download.windowsupdate.com
For Adobe Download Manager:
client_skip_content=Host: ardownload.adobe.com,Host:
download.adobe.com - Save and close the file.
- Restart the Trend Micro InterScan Web Security Suite for HTTP service.
