Configuring Web E-Mail: Ms Outlook Web Access; Optimizing Clientless Ssl Vpn Performance; Configuring Caching - Cisco PIX 500 Series Configuration Manual

Chapter 37 Configuring Clientless SSL VPN

Configuring Web E-mail: MS Outlook Web Access

Web e-mail is MS Outlook Web Access for Exchange 2000, Exchange 5.5, and Exchange 2003. It
requires an MS Outlook Exchange Server at the central site. It also requires that users perform the
following tasks:
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Optimizing Clientless SSL VPN Performance

The security appliance provides several ways to optimize Clientless SSL VPN performance and
functionality. Performance improvements include caching and compressing web objects. Functionality
tuning includes setting limits on content transformation and proxy-bypass. APCF provides an additional
method of tuning content transformation. The following sections explain these features:
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Configuring Caching

Caching enhances Clientless SSL VPN performance. It stores frequently reused objects in the system
cache, which reduces the need to perform repeated rewriting and compressing of content. It reduces
traffic between Clientless SSL VPN and the remote servers, with the result that many applications run
much more efficiently.
By default, caching is enabled. You can customize the way caching works for your environment by using
the caching commands in cache mode, which you enter from webvpn mode, as in the following example.
hostname(config)#
hostname(config)# webvpn
hostname(config-webvpn)# cache
A list of caching commands and their functions follows:
Cache Command
disable
expiry-time
lmfactor
max-object-size
min-object-size
cache-static-content
OL-12172-03
Enter the URL of the mail server in a browser in your Clientless SSL VPN session.
When prompted, enter the e-mail server username in the format domain\username.
Enter the e-mail password.
Configuring Caching
Configuring Content Transformation
Function
Disables caching.
Configures an expiration time for caching objects.
Configures terms for revalidating cached objects.
Sets a maximum size for objects to cache.
Sets a minimum size for objects to cache.
Caches all cacheable web objects, content not subject to rewriting.
Examples include images and PDF files.
Cisco Security Appliance Command Line Configuration Guide
Optimizing Clientless SSL VPN Performance
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