Blue Coat Systems Understanding X-BlueCoat-Via Headers in Blue Coat SGOS 4.x Upgrade Guide

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Blue Coat SGOS 4.x Upgrade Guide

Table 3.11: Abandoned Substitution Tokens (Continued)

Abandoned CPL

Current CPL

 

 

response_header.Proxy-Authenticate

response.header.Proxy-Authenticate

response_header.Proxy-Authorization

response.header.Proxy-Authorization

response_header.Proxy-Connection

response.header.Proxy-Connection

response_header.Range

response.header.Range

response_header.Referer

response.header.Referer

response_header.Refresh

response.header.Refresh

response_header.Retry-After

response.header.Retry-After

response_header.Server

response.header.Server

response_header.Set-Cookie

response.header.Set-Cookie

response_header.Set-Cookie2

response.header.Set-Cookie2

response_header.TE

response.header.TE

response_header.Trailer

response.header.Trailer

response_header.Transfer-Encoding

response.header.Transfer-Encoding

response_header.Upgrade

response.header.Upgrade

response_header.User-Agent

response.header.User-Agent

response_header.Vary

response.header.Vary

response_header.Via

response.header.Via

response_header.WWW-Authenticate

response.header.WWW-Authenticate

response_header.Warning

response.header.Warning

response_header.X-BlueCoat-Error

response.header.X-BlueCoat-Error

response_header.X-BlueCoat-MC-Client-Ip

response.header.X-BlueCoat-MC-Client-Ip

response_header.X-BlueCoat-Via

response.header.X-BlueCoat-Via

response_header.X-Forwarded-For

response.header.X-Forwarded-For

transaction_id

transaction.id

url_address

url.address

url_extension

url.extension

url_host

url.host

url_host_name

url.hostname

url_path

url.pathquery

url_port

url.port

url_query

url.query

url_scheme

url.scheme

Documentation References

Appendix D, “Substitutions,” in the Blue Coat Content Policy Language Guide

Exception Pages

A number of built-in exception pages have been added to SGOS 4.x to send information back to the user under operational contexts that are known to occur. New exception pages include:

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Contents Blue Coat Systems ProxySG Contact Information Contents Blue Coat Sgos 4.x Upgrade Guide Changes Between Sgos 3.x and Sgos About the Document OrganizationRelated Blue Coat Documentation Chapter Title DescriptionDocument Conventions Conventions DefinitionUpgrade Behavior, General UpgradingSummary of Changes to the Upgrade Process Restoring to Previous VersionsRedoing an Upgrade from Sgos Redoing an Upgrade from Sgos 2.x or CacheOSLicensing Changing Between Sgos 4.x VersionsType Component Description SSL Hardware Supported Documentation ReferencesFeature-Specific Upgrade Behavior Access LoggingGlobal Enable/Disable Switch New CLI CommandsDocument References Protocol LogNew Access Logging Substitutions Upgrade BehaviorCLI Compatibility Issues Peer-to-PeerBlue Coat Sgos 4.x Upgrade Guide New Substitutions Administrator Actions AuthenticationBandwidth Management Compression Downgrade BehaviorContent Filtering CLI CommandsCommand Description CPU MonitoringUpgrade/Downgrade Behavior Endpoint Mapper and Socks CompressionIcap Patience CLI Changes and AdditionsPolicy Policy Deprecation Https//ProxySGIPport /policyimportlisting.htmlAbandoned Syntax Replacement Syntax CPLBlue Coat Sgos 4.x Upgrade Guide Abandoned Policy Conditions Abandoned CPL Current CPL Abandoned CPL Current CPL Abandoned CPL Current CPL Exception Pages UTF-8 Encoding Object NamingSecuring the Serial Port SmartFilter VersionSSL Key Management Documentation ReferenceDocumentation References Blue Coat Sgos 4.x Upgrade Guide Index VPM

SGOS 4.x specifications

Blue Coat Systems SGOS 4.x is a robust operating system designed for the Blue Coat ProxySG series of appliances, which serve as content filtering and web security solutions. The SGOS (Secure Gateway Operating System) is crafted to enhance network performance while providing extensive security and policy enforcement capabilities. This article delves into the numerous features, technologies, and characteristics that define SGOS 4.x, making it an essential tool for organizations looking to fortify their web traffic management and security.

One of the standout features of SGOS 4.x is its advanced web filtering capabilities. The system employs a comprehensive URL categorization database that allows organizations to enforce content policies effectively. By categorizing millions of web pages, SGOS enables users to block or allow access to specific sites based on their content category, ensuring a safe browsing experience for employees and preventing access to harmful or non-work-related content.

Another notable technological characteristic of SGOS 4.x is its accelerated SSL decryption. As encrypted traffic continues to dominate the web, it becomes increasingly important for organizations to inspect this traffic for potential threats. SGOS 4.x offers robust SSL decryption capabilities that allow organizations to analyze encrypted traffic while maintaining the confidentiality and integrity of the data being transmitted. This attribute not only strengthens security but also aids in compliance with regulatory requirements.

SGOS 4.x is also equipped with exceptional caching and content delivery features. By caching frequently accessed content, the system reduces load times and optimizes bandwidth usage. This caching mechanism is enhanced by predefined policies that dictate how content is stored and retrieved, significantly improving user experience while reducing operational costs.

Furthermore, SGOS 4.x supports advanced reporting and analytics features. The integrated reporting tools provide administrators with insights into web usage patterns, bandwidth consumption, and security incidents. These insights facilitate informed decision-making and allow organizations to refine their web usage policies based on actual user behavior and threat landscape analysis.

In terms of scalability, SGOS 4.x is engineered to support a wide range of deployment scenarios, from small businesses to large enterprises. The architecture is designed to efficiently handle varying volumes of traffic without compromising performance or security, making it a flexible solution for diverse organizational needs.

Overall, Blue Coat Systems SGOS 4.x presents a powerful platform for web security and traffic management. With its advanced filtering, SSL decryption, caching, and analytics capabilities, SGOS 4.x remains a vital solution for organizations aiming to enhance their security posture and improve operational efficiency in an increasingly complex web environment.