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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L-245: Linux System Administration I

Course Overview:

In this course students will learn to install the Linux™ operating system, to administer users and software, to use vi, basic Linux security, process control, file system maintenance, backup and recovery, including some basic networking concepts. This course insures that students have the skills to configure all desktop and client side related activity.

Attendees to L-245: Linux System Administration I will receive TechNow approved course materials and expert instruction.

Dates/Locations:

No Events

Duration: 5 days

Course Objectives:

  • Linux operating system installation
  • Hardware Issues
  • LILO & GRUB Configuration
  • Managing the Linux file system
  • Boot Process
  • Customization of setup files
  • System Startup
  • Run Levels
  • Network Services
  • User Management
  • Changing Passwords
  • Monitoring, accessing & restricting root system access
  • Administration Tools
  • Disk Management
  • Quotas
  • Process Control
  • Installing & removing software & patches
  • Network Configuration
  • Client side components of NFS, Samba, NTP, NIS
  • Printing
  • Backup and Recovery
  • Using utilities for process control, locating files & automating maintenance tasks

Prerequisites:

  • Students should have an understanding of all basic UNIX commands as well as variable substitution, wild card expansion, command pipes, permissions, the grep  and find commands.
  • These prerequisites can be met through completion of TN-125: Introduction to UNIX & Linux and six month’s experience with Linux.

 

Comments

Latest comments from students

User: flores2015

Instructor comments: Very Good Instructor (Bill Peterson)

Facilities comments: Nice - Can't wait for your new facility.

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RH-245: Linux System Administration I

Course Overview:

The System Administration I for Red Hat course is designed for IT professionals working to become full-time enterprise Linux system administrators. This course gives the student direct experience with the most essential system administration tasks in the Red Hat. You will be instructed in crucial system management skills including: configuring network interfaces, client set up of network protocols, managing local disk devices, installation, package management, performing system boot procedures, grub and controlling system processes.

Attendees to RH-245: Linux System Administration I will receive TechNow approved course materials and expert instruction.

Dates/Locations:

Date/Time Event
03/02/2026 - 03/06/2026
08:00 -16:00 		RH-245: Linux System Administration I
TechNow, Inc, San Antonio TX
06/01/2026 - 06/05/2026
08:00 -16:00 		RH-245: Linux System Administration I
TechNow, Inc, San Antonio TX
09/14/2026 - 09/18/2026
08:00 -16:00 		RH-245: Linux System Administration I
TechNow, Inc, San Antonio TX

Duration: 5 days

Course Objectives:

  • Installation
  • Manage File Systems and Local Disk Drives
  • Perform Mounts and Unmounts
  • Perform System Boot Procedures
  • Tuning and Maintaining the Kernel
  • Control System Processes
  • Perform User Administration
  • Installing and Managing Services
  • Perform Package Administration
  • Client Setup of SSH and Printing

Prerequisites:

Comments

Latest comments from students

User: mlspence

Instructor comments: Bill was awesome! He did a fantastic job teaching the course mater to everyone in the class. He made sure everyone was able to keep up and that they understood the material before moving on. Thanks!

Facilities comments: They were great as well

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N-325: Implementing Cisco IOS Network Security (IINS)

Course Overview:

Implementing Cisco IOS Network Security (IINS) is an instructor-led course. This five-day course focuses on the necessity of a comprehensive security policy and how it affects the posture of the network.  TechNow students each get a Cisco Switch, Router, and an ASA.  The in the classrom hardware hands-on component of this course is a priority.  Using instructor-led discussions, extensive hands-on lab exercises, and supplemental materials, this course allows learners to understand common security concepts, and deploy basic security techniques utilizing a variety of popular security appliances within a “real-life” network infrastructure.  TechNow is an Authorized VUE testing partner and this course concludes with the student taking the 210-260 IINS Cisco Certification Exam.

Duration: 5 days
Audience:  Cisco Network Administrators.  This course is an excellent precursor to Palo Alto Network Firewall Training
DoD 8140:  Not Mandated
Course Prerequisites:  CCNA

Course Objectives:

  • Describe common network security concepts
  • Secure routing and switching infrastructure
  • Deploy basic authentication, authorization and accounting services
  • Deploy basic firewalling services
  • Deploy basic site-to-site and remote access VPN services
  • Describe the use of more advanced security services such as intrusion protection, content security and identity management

Attendees to N-325: Implementing Cisco IOS Network Security will receive TechNow approved course materials and expert instruction.

Dates/Locations:

No Events

Comments

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VM-345: VMware Infrastructure Security: VMware Install, Configure, and Manage with Security Objectives

 

Course Overview:

This course explores the VMware Infrastructure and related security, which consists of VMware ESX Server & VMware Virtual Center Server. We will look at both the design environments and operational processes of the VMware Infrastructure including security. This course provides IT architects with the insight needed to tackle tough issues in server virtualization such as virtual machine technologies, storage infrastructure, and designing clustered environments with security practices included. Extensive hands-on labs provide for a rich student experience.

Hypervisors and their supporting environment require attention to security due to the aggregated risk of hosting multiple virtual servers. This course explores the security of virtualized environments. Student configure ESXi by learning to manage the security and risk between ESXi, virtual servers and security integration of ESXi to the physical network infrastructure including appropriate segregation from other sensitive networks and management networks. How to configure virtual networks when some hosts are dual or multi homed, but internally segregate between the two or more connected networks with different security levels. Appropriate integration of zero-clients and thin clients. Configuration of defensive measures on hosts, servers, hypervisors within the virtual environment and practices for those guarding it externally. Integration of Active Directory and other AAA/CIA related services relative to a virtualized environment.

Students are also walked through DoD ESXi Security Technical Implementation Guide (STIG). Introduction to the impact of Intel Trusted Execution Technology integrated with ESXi to create a trusted platform for virtual machines. Additionally the instructor walks the students through NIST Special Publication 800-125A: Security Recommendations for Hypervisor Deployment on Servers, and NIST Special Publication 800-125B: Secure Virtual Network Configuration for Virtual Machine (VM) Protection.

Attendees to “VM-345: VMware Infrastructure Security: VMware Install, Configure, and Manage with Security Objectives” will receive TechNow approved course materials and expert instruction.

Dates/Locations:

No Events

Duration: 5 Days

Course Objectives:

• Virtual Infrastructure Overview
• ESX and ESXi Server Installation
• Configuration of Networking, Scalability and Security
• Storage
• Install and Configure vCenter Server and Components
• Creation, Deployment, Management, and Migration of Virtual Machines
• Utilize vCenter Server for Resource Management
• Utilize vCenter Server for Virtual Machine Access Control and User Managment
• Use vCenter Server to increase scalability
• Monitoring Your Environment
• Data & Availability Protection Troubleshooting
• Use VMware vCenter Update Manager to apply ESXi patches
• Use vCenter Server to manage vMotion, HA, DRS and data protection.