N-595: VoIP Security Analysis and Design

Course Overview:

As VoIP (Voice-over IP) is integrated into the operations of many missions, it is imperative to understand its security ramifications.  In the N-595: VoIP Security Analysis and Design class the objectives are designed for those who are chartered with the responsibility of securing networks and application environments that incorporate VoIP.   Topics include how VoIP works, its interactions with the network, its vulnerabilities and mitigations.  Focus is on leading open source and proprietary technologies utilizing Asterisk and Cisco and the protocols SIP, H.323, RTP, MGCP, and Skinny.  Other protocols such as Nortel's UNIStim will be addressed.  As for Cisco, security pieces in the VoIP CallManager servers, Catalyst switches, IOS-based routers, and ASA firewalls, amounts to several different platforms, each with its own management interface and lockdown procedures.   Various open source tools including those in BackTrack are used for VoIP attacks.  A task list of actions for securing enterprise VoIP is carried out in hands-on labs, performed on Cisco phones, routers, switches, and ASA firewalls.

Attendees to N-595: VoIP Security Analysis and Design will receive TechNow approved course materials and expert instruction.

Dates/Locations:

No Events

Duration: 5 Days

Course Objectives:

  • VoIP Architecture
  • VoIP Signaling and media protocols
  • Common VoIP authentication mechanisms
  • Common VoIP encryption techniques
  • VoIP protocol analysis with Wireshark
  • Maintaining QoS while mitigating DoS
  • VoXML, XML, and application integration security
  • Converged network security design and implementation
  • Impact of NAT and firewalls
  • SIP, H.323, and MGCP vulnerabilities
  • VPN, IPsec and SRTP to secure VoIP services
  • Penetration testing with open source tools
  • Attacks for Eavesdropping, call redirection, and DoS
  • Design of hacked firmware virtualization layer
  • Concise lockdown steps for network hardware and VoIP

Prerequisites:

  • This is an advanced Information Security Course which requires basic Windows & UNIX competency
  • Certification or 2 years of experience in these operating systems is highly recommended
  • As well as an understanding of TCP/IP

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Welcome to TechNow!

Welcome to TechNow! The Leader in Information Security Training & Computer Training.

The world of information security and computer training is ever changing.  The techniques and systems continue to evolve and we must stay current and diligent.  To do this, you can count on TechNow®…the leader in cybersecurity training and computer system training.

TechNow® has been training the leaders in the computer community for many years.  We provide training for students in a number of areas.  Our cybersecurity trainings include popular courses like D0D 8140, Security , CISM, CISSP, CEH,CCNA, and more.  With over 34 years of experience, we’re able to provide you with unmatched training and certification programs.

TechNow also provides a variety of other popular trainings for the computer professional including Cisco, EC-Council, CompTIA, Unix/Linux and more.

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    TN-959: UNIX Security Administrator Course

    Course Overview:

    The  UNIX Security Administrator Prep is a hands-on course that covers how to secure and audit UNIX and Linux operating systems. This includes concepts such as Rootkits, Buffer overflows, and monitoring UNIX/Linux systems.

    Attendees to TN-959: Unix Security Administratorwill receive TechNow approved course materials and expert instruction.

    Date/Locations:

    No Events

    Duration: 5 days

    Course Objectives:

    • AIDE
    • Apache
    • Best Practices for Kernel Tuning and Warning Banners
    • Boot Services
    • Chroot()
    • DNS- BIND
    • DNSSec
    • Evidence Collection and Preservation
    • Forensic Analysis
    • Forensic Preparation and Incident Handling
    • Host Based Firewalls – iptables
    • Intro to Forensics
    • OS Install and Patching
    • Physical, User Account, and Password Access Control
    • Se Linux
    • Sendmail
    • SSH
    • Stack Smashing
    • Sudo
    • Syslog-NG
    • UNIX Logging

    Course Prerequisites:

    • GSEC or equivalent experience
    • UNIX, Windows, networking, and security experience
    • This is a hands-on skill course requiring comfort with command line interaction and network communications

     

    Comments

    Latest comments from students

    User: wbcarter

    Instructor comments: Good Stuff. Thanks!

    User: ryuhas

    Instructor comments: Very Good Instructor

    Facilities comments: Facilities was great. Location had a lot to be desired. To much traffic and accidents trying to get here.

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    CT-245: Linux+

    Course Overview:

    This course will provide students with proficiency in the everyday management of Linux based clients and basic management of server system. Students will learn the knowledge and tools necessary to manage Linux systems from the command line, as well as how to manage user administration, file permissions, software configurations, and Linux based clients, server systems and security.  Let us help you prepare for the CompTIA Linux+ exam (XK0-005).

    TechNow is a CompTIA partner and uses official CompTIA Linux+ curriculum.

    Attendees to CT-245: Linux+ will receive TechNow approved course materials and expert instruction.

    Dates/Locations:

    Date/Time Event
    02/09/2026 - 02/13/2026
    08:00 -16:00     		CT-245: Linux+
    TechNow, Inc, San Antonio TX
    05/11/2026 - 05/15/2026
    08:00 -16:00     		CT-245: Linux+
    TechNow, Inc, San Antonio TX
    08/10/2026 - 08/14/2026
    08:00 -16:00     		CT-245: Linux+
    TechNow, Inc, San Antonio TX
    11/02/2026 - 11/06/2026
    08:00 -16:00     		CT-245: Linux+
    TechNow, Inc, San Antonio TX

    Duration: 5 Days

    Course Objectives:

    • Perform basic Linux tasks
    • Manage users and groups
    • Manage permissions and ownership
    • Manage storage
    • Manage files and directories
    • Manage kernel modules
    • Manage the Linux boot process
    • Manage system components
    • Manage devices
    • Manage networking
    • Manage packages and software
    • Secure Linux systems
    • Write and execute Bash shell scripts
    • Automate tasks
    • Plan and perform a Linux installation

    Prerequisites:

     

    Comments

    Latest comments from students

    User: cwbrind

    Instructor comments: Great experience with Mr. Peterson, would recommend again. Highly knowledgable and approachable for any subject.

    Facilities comments: The Holiday Inn was a nice location for learning despite traffic around the area.

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    TN-913: Cloud Security Fundamentals

     

    Course Overview:

    TechNow Cloud Security Fundamentals addresses the loss of hands-on control of system, application, and data security in the Cloud computing environment.  Security teams wrestle with the impact and liability of Cloud computing on an organization.  This course enables the security team to assist in contract language and Service Level Agreements (SLAs) when utilizing Cloud Service Providers (CSPs).

    Compliance and auditing are introduced with strategies for control verification and audit analysis in the CSP environment.  Software as a Service (SaaS) to Infrastructure as a Service (IaaS) and everything in between require a compliance strategy.  Students will go in-depth into the architecture and infrastructure fundamentals for private, public, and hybrid clouds.   Topics covered include: patch and configuration management, virtualization security, application security, and change management. Policy, risk assessment, and governance within cloud environments will be covered with recommendations for both internal policies and contract provisions to consider.

    TechNow has worked worldwide enterprise infrastructures for over 20 years and has developed demos and labs to exemplify the techniques required to effectively manage security in the cloud environment.

    Attendees to TN-913: Cloud Security Fundamentals will receive TechNow approved course materials and expert instruction.

    Date/Locations:

    Date/Time Event
    02/09/2026 - 02/12/2026
    08:00 -16:00     		TN-913: Cloud Security Fundamentals
    TechNow, Inc, San Antonio TX
    05/26/2026 - 05/29/2026
    08:00 -16:00     		TN-913: Cloud Security Fundamentals
    TechNow, Inc, San Antonio TX
    09/08/2026 - 09/11/2026
    08:00 -16:00     		TN-913: Cloud Security Fundamentals
    TechNow, Inc, San Antonio TX
    12/07/2026 - 12/10/2026
    08:00 -16:00     		TN-913: Cloud Security Fundamentals
    TechNow, Inc, San Antonio TX

    Course Duration: 3 days

    Course Objectives:

    • Cloud computing introduction
    • Security challenges in the cloud
    • Infrastructure security in the cloud
    • Policy, risk, and governance for cloud computing
    • Compliance and legal considerations
    • Audit and assessment for the cloud
    • Data security in the cloud
    • Identity and Access Management (IAM)
    • Disaster Recovery and Business Continuity Planning (DR/BCP) in the cloud
    • Intrusion detection and incident response

    Course Prerequisites:

    • GSEC, CISSP, CASP or equivalent experience in managing enterprise infrastructures
    • Managing or administering at least one of UNIX, Windows, Databases, networking, or security

    Comments

    Latest comments from students

    User: reedrobt

    Instructor comments: Dave is like an encyclopedia of technical topics...what "doesn't" he have expertise in?

    Facilities comments: Home2 location was well-kept and convenient to other services.

     

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