TN-125: Introduction to UNIX and Linux

 

Course Overview:

This hands-on course provides an intensive overview of fundamental UNIX commands that are common to all flavors of UNIX, but the focus is on RedHat. At the end of this course students will have a firm grasp of how the UNIX operating system works, how to accomplish powerful functions using multiple commands & most importantly of all, how to think UNIX. With the skills gained in this course, students can move on to RedHat System Administration I or Linux System Admnistration I.

Attendees of TN-125: Introduction to UNIX and Linux will receive course materials and expert Instruction.

Date/Locations:

Date/Time Event
11/03/2025 - 11/07/2025
08:00 -16:00 		TN-125: Introduction to UNIX and Linux
TechNow, Inc, San Antonio TX

Duration: 5 days

Course Objectives:

  • Unix Overview
  • Introduction to the UNIX command Line
  • Managing and controlling access to files
  • Batch Scripting and tools
  • Regular Expressions, Pipelines, and IO Redirection
  • Text File Manipulation
  • Basic Network Commands
  • Managing Unix Processes
  • GNOME Graphical Desktop

Prerequisites:

  • Basic Knowledge of Computers

Comments

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User: trkdashin

Instructor comments: Very knowledgeable

Facilities comments: Nice Hotel

 

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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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Security Course Flow

We are often asked what is the recommended sequence of classes.  Here is our recommended sequence of classes for The Security Field.

Certified Information Security Manager (CISM)

CT-325 CompTIA Security+ Arrowright TN-825 Certified Information Security Manager

Certified Information Systems Auditor(CISA)

CT-325 CompTIA Security+ Arrowright TN-425 Certified Ethical Hacker Arrowright TN-822: Certified Information Systems Auditor (CISA)

Certified Information Systems Security Professional(CISSP)

CT-325 CompTIA Security+ Arrowright TN-425 Certified Ethical Hacker Arrowright TN-815 CISSP Certification Prep Seminar

 

TN-245: Telecommunications Fundamentals

Course Overview:

This comprehensive course provides you with an in-depth understanding of the current telecom landscape and how voice is migrating from a circuit- to a packet-switched network. You will learn how to evaluate existing technology options to determine which will best meet your organization's data and telephony requirements, from mature digital transport/access services to emerging voice and data services using voice over packet technologies.

Attendees to TN-245: Telecommunications Fundamentals will receive TechNow approved course materials and expert instruction.

Dates/Locations:

No Events

Duration: 5 days

Course Objectives:

  • The Current State of the Telecom Industry
  • Telecom Service Providers
  • Digitalizing Voice
  • Communication Mediums and Multiplexing
  • Carrier Access: Customer-to-Carrier Connections
  • Broadband Access
  • Enterprise Networks
  • Carrier Transport Services
  • Data Communications and Packet-Switched Networks
  • Migrating Voice from Circuit-to-Packet-Switched Networks
  • Carrier Data Services
  • Ethernet Services
  • Remote Access Virtual Private Networks (VPNs)
  • Video Technology and Services
  • Current Mobile Wireless Services
  • Fixed Mobile Convergence (FMC)
  • Worldwide Interoperability for Microwave Access (WiMax)
  • Multimedia Subsystem (IMS)

Prerequisites:

  • None

 

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RH-355: RHCSA Rapid Track Course

Course Overview:

The RHCSA Rapid Track Course  is designed for experienced Linux® system administrators who want to expand their technical skill sets and become accredited with the Red Hat® Certified System Administration (RHCSA) certification. To successfully navigate this course, students should have experience with the Linux command line—including the necessary skills to execute common commands, such as cp, grep, sort, mkdir, tar, mkfs, ssh, and dnf—and be familiar with accessing man pages for help. At the completion of the course, students will be adequately prepared to take the RHCSA exam (EX200) .

Date/Locations:

No Events

Duration: 5 days

Course Objectives:

  • Introduce Linux and the Red Hat Enterprise Linux ecosystem.
  • Run commands and view shell environments.
  • Manage, organize, and secure files.
  • Manage users, groups and user security policies.
  • Control and monitor systemd services.
  • Configure remote access using the web console and SSH.
  • Configure network interfaces and settings.
  • Manage software using DNF
  • Access security files, file systems, and networks
  • Execute shell scripting and automation techniques
  • Manage storage devices, logical volumes, and file systems
  • Manage security and system access
  • Control the boot process and system services
  • Running containers

Prerequisites:

Experience in the field system administration.

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