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Advanced Junos Enterprise Security Troubleshooting (AJEST)


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  • 1 Days Course
    Network Security

    Classroom + Online

    Course Details


    This one-day course is designed to provide students with information about troubleshooting IPsec, security zones and policies, other security features, and chassis clustering. Students will gain experience in monitoring and troubleshooting these topics through demonstration as well as hands-on labs. The course exposes students to common troubleshooting commands and tools used to troubleshoot various intermediate to advanced issues.


    This course uses Juniper Networks SRX Series Services Gateways for the hands-on component, but the lab environment does not preclude the course from being applicable to other Juniper hardware platforms running the Junos OS. This course is based on Junos OS Release 12.1R5.5.


    Course Level:

    Advanced Junos Enterprise Security Troubleshooting is an advanced-level course.


    After successfully completing this course, you should be able to:

    • Troubleshoot security zones.
    • Troubleshoot security policies.
    • Troubleshoot IPsec virtual private network (VPN) problems.
    • Troubleshoot Internet Key Exchange (IKE) phase 1 issues.
    • Troubleshoot IKE phase 2 issues.
    • Verify and troubleshoot AppSecure.
    • Monitor and troubleshoot intrusion prevention systems (IPS).
    • Verify and troubleshoot UTM.
    • Verify, monitor, and troubleshoot chassis clustering issues.
    • Troubleshoot different chassis clustering modes.
    • List the general chassis components.
    • Identify different methods for troubleshooting major chassis components.
    • Troubleshoot redundant Routing Engine and Control Board communication.


    Day 1

    Chapter 1: Course Introduction

    Chapter 2: Troubleshooting Security Zones and Policies

    • Security Zones
    • Security Policies
    • Case Studies
    • Troubleshooting Security Zones and Policies Lab

    Chapter 3: Troubleshooting IPsec

    • IPsec Overview
    • IKE Phase 1
    • IKE Phase 2
    • Case Studies
    • Troubleshooting IPsec Lab

    Chapter 4: Troubleshooting Security Features

    • AppSecure
    • IPS
    • UTM
    • Troubleshooting Security Features Lab

    Chapter 5: Troubleshooting Chassis Clusters

    • High Availability Overview
    • High Availability Operation
    • Case Studies
    • Troubleshooting Chassis Clustering Lab

    Appendix A: SRX Hardware Troubleshooting

    • General Chassis Components
    • Redundancy
    • Hardware Case Study

    Target Audience

    The primary audience for this course is the following:

    • Individuals responsible for configuring and monitoring devices running the Junos OS.


    The following are the prerequisites for this course:

    • Junos Troubleshooting in the NOC (JTNOC);
    • Advanced Junos Security (AJSEC);
    • Junos Intrusion Prevention Systems (JIPS): and
    • Junos Unified Threat Management (JUTM).