Cisco Ironport Software Product To

Cisco Ironport Software Product To

IronPort Systems, then an independent security company, created ESA as a self-contained hardware and software product to provide high-performance email security.

The goal was to provide a single product that accepted, filtered, and delivered Internet email messages, and to do so reliably and quickly.

Initially, the ESA provided basic message features along with filtering for spam and virus messages, but subsequent releases have dramatically expanded the range of capabilities.

ESA was certainly not the first system that performed virus or spam filtering for email messages; Bulk Unsolicited Commercial Internet email (UCE, the technical term for spam email) has been around almost as long as Internet email itself.

It was one of the first, however, to combine these features into a single product, and to do so on a purposebuilt platform with extremely high performance.

Therefore the users privacy must be kept in mind when deploying this header.

It does this through several layers as can be seen in the following figure, Before, During adn After phases.

Let me briefly go through these layers which I will explain in details later through this document.

The DVS engine, in combination with the Webroot andor Sophos or McAfee scanning engines, returns a malware scanning verdict.

The Web Security appliance integrates with leading third party content-aware DLP systems that identify and protect sensitive data.

The Web Proxy uses the Internet Content Adaptation Protocol (ICAP) which allows proxy servers to offload content scanning to external systems.

I emphasis mainly on the concepts as I believe having a good understanding of them help us to configure wsa properly and get involve efficiently on troubleshooting.

SensorBase provides Cisco with an assessment of reliability for known Internet domains.

The Web Security appliance uses the SensorBase data feeds to improve the accuracy of Web Reputation Scores.

The Load Balancing part is maybe more interested which has several options such as.

However there is an option, to make the M1 to be used only for management.

What is important is to have a Virtual IP address for both and use this virtual IP address for clients (like in pac file) to access the proxy server.

For this purpose we can have 2 Failover Group which in the first Group, the first Proxy server is Active and the other one is Backup and in the second Group, the first proxy is Backup and the other one is Active.

It is necessary that in client side such as in Pac File, we write the both Virtual IP address in the file.

However as I mentioned earlier we can also use M1 beside management purpose, for clients data.

One of the requirements of enabling P2 is that P1 be also enabled.

To use P1 for outgoing traffic, change the Default Route for data traffic to specify the next IP address that the P1 interface is connected to.

However, you can choose to split the routing, so that management traffic uses a management routing table and data traffic uses a data routing table.

When you use the Management interface for management traffic only (restrict M1 port to appliance management services only is enabled), then this page includes two sections to enter routes, one for management traffic and one for data traffic.

When you use the management interface for both management and data traffic (restrict M1 port to appliance management services only is disabled), then this page includes one section to enter routes for all traffic that leaves the Web Security appliance, both management and data traffic.

When traffic is intercepted between clients and servers, server access logs contain the IP address of the proxy or load balancer only.

To see the original IP address of the client, the X-Forwarded-For request header is used.

This header is used for debugging, statistics, and generating location-dependent content and by design it exposes privacy sensitive information, such as the IP address of the client.

Cisco Ironport Install License