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Cisco ASA Series CLI Configuration Guide
Chapter 1 Configuring Clientless SSL VPN
Optimizing Clientless SSL VPN Performance
Detailed Steps
Optimizing Clientless SSL VPN Performance
The ASA 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:
•
•
Configuring Content Transformation
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.
Command
Purpose
Step 1
webvpn
Example:
hostname(config)# webvpn
Enter webvpn configuration mode.
Step 2
portal-access-rule
priority
[{
permit
|
deny
[
code
code
]}
{
any
|
user-agent match
string
}
Example:
hostname(config-webvpn)# portal-access-rule 1 deny code
403 user-agent match *Thunderbird*
hostname(config-webvpn)# portal-access-rule 1 deny code
403 user-agent match “*my agent*”
Permit or deny the creation of a SSL VPN session
based on an HTTP header code or a string in the
HTTP header.
The second example shows the proper syntax for
specifying a string with a space. Surround the
string with wildcards (*) and then quotes (“ ”).
Summary of Contents for 5505 - ASA Firewall Edition Bundle
Page 28: ...Glossary GL 24 Cisco ASA Series CLI Configuration Guide ...
Page 61: ...P A R T 1 Getting Started with the ASA ...
Page 62: ......
Page 219: ...P A R T 2 Configuring High Availability and Scalability ...
Page 220: ......
Page 403: ...P A R T 2 Configuring Interfaces ...
Page 404: ......
Page 499: ...P A R T 2 Configuring Basic Settings ...
Page 500: ......
Page 533: ...P A R T 2 Configuring Objects and Access Lists ...
Page 534: ......
Page 601: ...P A R T 2 Configuring IP Routing ...
Page 602: ......
Page 745: ...P A R T 2 Configuring Network Address Translation ...
Page 746: ......
Page 845: ...P A R T 2 Configuring AAA Servers and the Local Database ...
Page 846: ......
Page 981: ...P A R T 2 Configuring Access Control ...
Page 982: ......
Page 1061: ...P A R T 2 Configuring Service Policies Using the Modular Policy Framework ...
Page 1062: ......
Page 1093: ...P A R T 2 Configuring Application Inspection ...
Page 1094: ......
Page 1191: ...P A R T 2 Configuring Unified Communications ...
Page 1192: ......
Page 1333: ...P A R T 2 Configuring Connection Settings and QoS ...
Page 1334: ......
Page 1379: ...P A R T 2 Configuring Advanced Network Protection ...
Page 1380: ......
Page 1475: ...P A R T 2 Configuring Modules ...
Page 1476: ......
Page 1549: ...P A R T 2 Configuring VPN ...
Page 1550: ......
Page 1965: ...P A R T 2 Configuring Logging SNMP and Smart Call Home ...
Page 1966: ......
Page 2059: ...P A R T 2 System Administration ...
Page 2060: ......
Page 2098: ...1 8 Cisco ASA Series CLI Configuration Guide Chapter 1 Troubleshooting Viewing the Coredump ...
Page 2099: ...P A R T 2 Reference ...
Page 2100: ......