Securing Email with Cisco Email Security Appliance (SESA)

Description

Clientèle

The primary audience for this course is as follows:

• Enterprise messaging managers and system administrators
• Email system designers and architects
• Network managers responsible for messaging implementation of the sender

Prérequis

The knowledge and skills that a learner should have before attending this course are as follows:

• A moderate knowledge of TCP / IP fundamentals, including IP addressing and subnetting, static IP routing and DNS.
• Experience with Internet based messaging, including SMTP, Internet message formats, and MIME message format.
• Familiarity with command line interface (CLI) and graphical user interface (GUI).
• Previous experience with email security would be helpful.

Objectifs

• Upon completing this course, the learner will be able to meet these overall objectives:
  • Creating and apply Data Loss Prevention (DLP) polices to outgoing email
  • Configuring Email Security Appliances to detect and handle unwanted spam and viruses
  • Using Message Tracking and Reporting to document email traffic trends
  • Managing spam quarantines
  • Using Cisco reputation based services, Sensor Base and Virus Outbreak Filters, to increase the security of an email network
  • Integrating an ESA with a directory server via LDAP
  • Debugging LDAP integration issues
  • Using message filters to redirect and modify messages
  • Performing safe deployment and debugging of message filters
  • Configuring TLS and Guaranteed Secure Delivery
  • Configuring Email Authentication with DKIM and SPF

Éléments du contenu

Module 1: Introduction & System Overview

• List IronPort Email Security Appliances
• Describe the ESA Hardware Options
• Describe the Email Pipeline Filters
• List the ESA Feature Key Options
• Describe the Operation of a Listener

Module 2: Tracking and Reporting Messages

• Perform a system installation of an M Series
• Integrate the M  Series into the existing C Series lab.
• Use local and Centralized Message Tracking
• Use Local and Centralized Reporting

Module 3: Controlling Sender & Recipient Domains

• Configure public and private listeners
• Configure SMTP Routes
• Use Senderbase Reputation Scores (SBRS) to managemail
• Use Mail Debugging Tools

Module 4: Controlling Spam with SenderBase & Anti

• Spam
• Adjust SBRS Configure Anti Spam Settings
• Configure the IronPort Spam Quarantine
• Use the Security Management Appliance for Off BoxQuarantining

Module 5: Using Anti

• Virus & Virus Outbreak Filters
• Enable one or both Anti Virus Engines
• Use one or both AV Engines in Mail Policies
• Use Virus Outbreak Filters to preemptively drop traffic and provide zero hour protection
• Identify best practices for managing IronPort Anti Virus

Module 6: Using Mail Policies to Direct Business Email

• Use Email Security Manager Create a User Based Mail Policies
• Use Message Tracking to monitor message splintering

Module 7: Using System Quarantines and Delivery Methods

• Describe, create and manage quarantines
• Perform searches quarantine contents
• Assign Bounce Profiles
• Create Virtual Gateways

Module 8: Using Content Filters for Specific Business Needs

• Describe content scanning
• Detect password protected / non protected attachments
• Create weighted content matching
• Use Smart Identifiers
• Implement Matched Content Visibility
• Execute best practices when staging new filters

Module 9: Encrypting Outbound Email

• Provision with the Cisco Registered Envelope Service
• Associate a content filtering rule with an “Encrypt” action
• Register a CRES Envelope Recipient

Module 10: Troubleshooting

• Identify Issues
• Diagnose and Isolate Problems
• Troubleshooting tools and best practices
• Log file contents and log administration

Module 11: System Administration

• Safely upgrade software on your IronPort
• Manage users and control alerting behavior
• Manage configurations and prepare for disaster recovery Access Customer Support

Module 12: Configuring LDAP Queries

• This module focuses directly on common LDAP configurations and issues. A brief overview of the Lightweight Directory Access Protocol is provided to give those new to LDAP some familiarity, but the bulk of the module assumes a basic understanding of LDAP terms and concepts. Active Directory is emphasized in a number of case studies to highlight the various installation choices. These include addressing the use of the ESA against multiple directories in a heterogeneous enterprise.

Module 13: Message Filters (Advanced Policy)

• This module focuses on advanced filter options with specific emphasis on creating, troubleshooting, simplification/streamlining and regular expressions. Helpful tips and tricks for both Message and Content filters are covered. Extensive hands on exercises are designed to give the students practice working with the Command Line Interface (CLI), as well as practical experience troubleshooting and examining logs.

Module 14: Email Authentication

Lab Outline

Part I:

• Lab 1-1: Installing Your Email Security Appliance
• Lab 2-1: Configuring the M-Series for Tracking and Reporting
• Lab 3-1: Testing Your Listener Settings
• Lab 4-1: Defending Against Spam with SenderBase and Anti-Spam
• Lab 4-2: Configuring Off-Box Quarantining to the M-Series
• Lab 5-1: Defending Against Viruses
• Lab 5-2: Defending Against Virus Outbreaks and Targeted Attacks
• Lab 6-1: Customizing Mail Policies for Your End Users
• Lab 7-1: Configuring Bounce Profiles
• Lab 7-2: Configuring Virtual Gateways
• Lab 8-1: Enforcing Your Business Policies in Email Delivery
• Lab 9-1: Configuring DLP
• Lab 10-1: Configuring Envelope Encryption
• Lab 11-1: Troubleshooting
• Lab 12-1: Delegated Administrator
• Lab 12-2: Configuring Clusters

Part II:

• Lab 1-1: Configuring LDAP Accept
• Lab 1-2: Configuring SMTP Call-Ahead
• Lab 1-3: Accommodating Multiple Domains Using LDAP Accept Bypass and Domain
• Lab 1-4: Controlling Mail Policies with LDAP Group Queries
• Lab 2-1: Redirecting Your Mail With Message Filters
• Lab 2-2: Removing Header Information From Outbound Email with Message Filters
• Lab 2-3: Removing File Attachments with Message Filters
• Lab 3-1: Encrypting with TLS
• Lab 4-1: DomainKeys Identified Mail
• Lab 4-2: SIDF and SPF Verification