479 Courses in Liverpool

Linux network administration 2 course description LPIC-2 is the second certification in LPI's multi level professional certification program. This course teaches the skills necessary to pass the LPI 202 exam; the second of two LPIC-2 exams. Specifically, the course covers the administration of Linux systems in small to medium sized mixed networks. What will you learn Install and configure fundamental network services. Linux network administration 2 course details Who will benefit: Linux administrators. Prerequisites: Linux engineer certification 1 (LPIC-2) Duration 5 days Linux network administration 2 course contents Part II The LPI 202 Exam Organizing Email Services The Linux Mail System, Mail Transfer Agent, Mail Delivery Agent, Mail User Agent, Email Protocols, SMTP, POP, IMAP, Using Email Servers, Sendmail, Postfix, Local Email Delivery, Procmail Basics, Sieve, Remote Email Delivery, Courier, Dovecot. DNS DNS and BIND, Configuring a DNS Server, Starting, Stopping, and Reloading BIND, Configuring BIND Logging, Creating and Maintaining DNS Zones, BIND Zone Files, Managing BIND Zones, Securing a DNS Server, ailing BIND, DNSSEC, TSIG, Employing DANE. Offering Web Services Web Servers, HTTP, The Apache Web Server, Installing and configuring Apache, Hosting Dynamic Web Applications, Secure Web Servers, Proxy Servers, Installing and configuring Squid, Configuring Clients, Nginx Server, Installing Nginx, Configuring Nginx. Sharing Files Samba, Configuring Samba, Troubleshooting Samba, NFS, Configuring NFS, Securing NFS, Troubleshooting NFS, FTP Servers, Configuring vsftpd, Configuring Pure-FTPd. Managing Network Clients Assigning Network Addresses, DHCP, Linux DHCP Software, Installing and configuring a DHCP Server and clients, Authentication Service, PAM Basics, Configuring PAM, PAM Application Files, Network Directories, LDAP Basics, OpenLDAP Server, LDAP Clients. Setting Up System Security Server Network Security, Port Scanning, Intrusion Detection Systems, External Network Security, iptables, Routing in Linux, Connecting Securely to a Server, OpenSSH, OpenVPN, Security Resources, US-CERT, SANS Institute, Bugtraq.

PRINCE2® Practitioner : In-House Training Projects fail for a variety of reasons including poor planning, lack of defined quality criteria, poor understanding of the business drivers, inadequate control, and lack of senior management involvement in other words, lack of a structured best practice approach to project delivery. PRINCE2® (6th Edition is the current version) is a structured, process-based approach for project management providing a methodology which can be easily tailored and scaled to suit all types of projects. It is the de facto standard for project management in the UK Government and is also used extensively in more than 150 countries worldwide with in excess of 20,000 organizations already benefitting from its powerful approach. It can be used easily in combination with PMI®'s PMBOK® Guide to provide a robust project methodology, or to augment an existing PMBOK®-based methodology with additional rigor around areas such as Quality, Organization, and Benefits Realization. The goals of this course are to take participants to the next level of understanding and application of the PRINCE2® methodology and to prepare them to sit the Practitioner exam. Using APMG provided sample exam papers and additional project case studies, participants will learn how to apply what they learned during the Foundation course and how to approach the OTE Practitioner exam, which is aimed at testing their ability to apply PRINCE2® in an actual project environment simulated via a case study provided as part of the exam. What you will Learn You'll learn how to: Tailor and apply the principles, themes, process structure, techniques, and management products of PRINCE2® within a work environment, via carefully selected case studies Define the PRINCE2® 6th Edition method at the Practitioner level Prepare for and take the Practitioner exam Getting Started Introductions Course structure Course goals and objectives Tailoring PRINCE2® Tailoring PRINCE2® Adopting PRINCE2® Tailoring PRINCE2® to suit different projects Adopting PRINCE2® in an organizational environment Controlled Start Recap management products Study business case and risk Study activities and responsibilities in: Starting up a project Initiating a project Controlled Progress Study management products and risk Study activities and responsibilities in: Getting work done Monitoring and reporting Issues and escalation Controlled Close Study Activities and Responsibilities in Closing a Project Activities and roles Roles and Responsibilities Principles Exercise Product-basedPlanning Producing a product breakdown structure (PBS) Producing a product flow diagram (PFD) Linking product breakdown structures and product flow diagrams to product descriptions

CWSP training course description A hands-on training course concentrating solely on WiFi security with an emphasis on the delegates learning the necessary knowledge and skills to pass the CWSP exam. The course progresses from simple authentication, encryption and key management onto in depth coverage of 802.X and EAP along with many other security solutions such as access control, intrusion prevention and secure roaming. What will you learn Demonstrate the threats to WiFi networks. Secure WiFi networks. Configure: WPA2 RADIUS 802.1x EAP Pass the CWSP exam. CWSP training course details Who will benefit: Technical network staff. Technical security staff. Prerequisites: Certified Wireless Network Associate. Duration 5 days CWSP training course contents WLAN Security overview Standards, security basics, AAA, 802.11 security history. Hands on WLAN connectivity. Legacy 802.11 security Authentication: Open system, shared key. WEP. VPNs. MAC filters. SSID segmentation, SSID cloaking. Hands on Analysing 802.11 frame exchanges, viewing hidden SSIDs. Encryption Basics, AES, TKIP, CCMP, WPA, WPA2. Hands on Decrypting 802.11 data frames. 802.11 layer 2 authentication 802.1X: Supplicant, Authenticator, Authentication server. Credentials. Legacy authentication. EAP, Weak EAP protocols, Strong EAP protocols: EAP -PEAP, EAP-TTLS, EAP-TLS, EAP-FAST. Hands on Analysing 802.1X/EAP frames. 802.11 layer 2 dynamic key generation Robust Security Network. Hands on Authentication and key management. SOHO 802.11 security WPA/WPA2 personal, Preshared Keys, WiFi Protected Setup (WPS). Hands on PSK mapping. WLAN security infrastructure DS, Autonomous APs, WLAN controllers, split MAC, mesh, bridging, location based access control. Resilience. Wireless network management system. RADIUS/LDAP servers, PKI, RBAC. Hands on 802.1X/EAP configuration. RADIUS configuration. 802.11 Fast secure roaming History, RSNA, OKC, Fast BSS transition, 802.11k. Hands on Roaming. Wireless security risks Rogue devices, rogue prevention. Eavesdropping, DOS attacks. Public access and hotspots. Hands on Backtrack. WiFi security auditing Layer 1 audit, layer 2 audit, pen testing. WLAN security auditing tools. WiFi security monitoring Wireless Intrusion Detection and Prevention Systems. Device classification, WIDS/WIPS analysis. Monitoring. 802.11w. Hands on Laptop spectrum analysers. VPNs, remote access, guest access Role of VPNs in 802.11, remote access, hotspots, captive portal. Wireless security policies General policy, functional policy, recommendations.

ITIL® 4 Specialist: Drive Stakeholder Value: In-House Training The ITIL® 4 Specialist: Drive Stakeholder Value module is part of the Managing Professional stream for ITIL 4. Candidates need to pass the related certification exam for working towards the Managing Professional (MP) designation. This course is based on the ITIL® 4 Specialist: Drive Stakeholder Value exam specifications from AXELOS. With the help of ITIL® 4 concepts and terminology, exercises, and examples included in the course, candidates acquire the relevant knowledge required to pass the certification exam. What You Will Learn The learning objectives of the course are based on the following learning outcomes of the ITIL® 4 Specialist: Drive Stakeholder Value exam specification: Understand how customer journeys are designed Know how to target markets and stakeholders Know how to foster stakeholder relationships Know how to shape demand and define service offerings Know how to align expectations and agree on details of services Know how to onboard and offboard customers and users Know how to act together to ensure continual value co-creation (service consumption / provisioning) Know how to realize and validate service value Customer Journey Purpose of the Module Purpose of Mastering the Customer Journey Touchpoints and Service Interactions Module Topics Mapping the Customer Journey Designing the Customer Journey Measuring and Improving the Customer Journey Customer Journey Step 1: Explore Purpose of the Module Purpose of the Explore Step Module Topics Understanding Service Consumers Understanding Service Providers Understanding and Targeting Markets Customer Journey Step 2: Engage Purpose of the Module Purpose of the Engage Step Aspects of Service Value Module Topics Service Relationship Types Building Service Relationships Building and Sustaining Trust and Relationships Analyzing Customer Needs Managing Suppliers and Partners Customer Journey Step 3: Offer Purpose of the Module Purpose of Shaping Demand and Service Offerings Module Topics Managing Demand and Opportunities Specifying and Managing Customer Requirements Designing Service Offerings and User Experience Selling and Obtaining Service Offerings Customer Journey Step 4: Agree Purpose of the Module Purpose of Aligning Expectations and Agreeing on Services Module Topics Agreeing on and Planning Value Co-Creation Negotiating and Agreeing on a Service Customer Journey Step 5: Onboard Purpose of the Module Purpose of Onboarding and Offboarding ITIL® Management Practices Module Topics Planning Onboarding Fostering Relationships with Users Providing User Engagement and Delivery Channels Enabling Users for Service Elevating Mutual Capabilities Offboarding Customer Journey Step 6: Co-create Purpose of the Module Purpose of Service Provision and Consumption Module Topics Service Mindset Ongoing Service Interactions Nurturing User Communities Customer Journey Step 7: Realize Purpose of the Module Measuring Service Value Purpose of Value Capturing and Customer Journey Improvement Realizing Service Value in Different Settings Module Topics Tracking Value Realization Assessing and Reporting Value Realization Evaluating Value Realization and Improving Customer Journeys Realizing Value for the Service Provider

AgilePM® Practitioner: In-House Training This course offers preparation for the Practitioner-level examination to gain the APMG-International™ / Agile Project Management Practitioner Certification. Agile Project Management (AgilePM) is the result of collaboration between APMG-International and The DSDM Consortium. DSDM (Dynamic Systems Development Method) is the longest-established Agile method, launched in 1995, and is the only Agile method to focus on the management of Agile projects. The method has evolved over the years and the DSDM Agile Project Framework is the latest version of which AgilePM is a subset. DSDM has always operated predominantly in the corporate environment and has consistently demonstrated its ability to successfully work with and complement existing corporate processes. APMG-International is a global Examination Institute accredited by The APM Group Ltd. It is one of the Examination Institutes accredited by AXELOS. APMG-International has regional offices located in Australia, China, Denmark, Germany, the Netherlands, Malaysia, the United States, and the United Kingdom. Their portfolio of qualifications includes the Best Practice qualifications of ITIL®, PRINCE2®, MSP®, M_o_R®, and P3O®. AgilePM is one of their specialist management qualifications, which also include Change Management and Service Catalogue. The course covers all the Practitioner elements of the AgilePM Handbook v2 with: Clear explanations of the method and practical examples provided by your course tutor Sample exam paper for the Practitioner-level exams to enrich your knowledge and understanding A case study to allow you to practice the application of the method to an agile project The Traditional Classroom option includes the Practitioner exam to provide you with the right opportunity to verify your new skill set by way of a professional qualification The Virtual Classroom option includes a Practitioner exam voucher to allow you to choose the date and time of your online exam to verify your new skill set by way of a professional qualification What You Will Learn You will learn how to: Identify and apply the concepts, tools, and techniques described in Section 2 (Digging Deeper) of the APMG-International's Agile Project Management Handbook (v2.0) to agile projects Tailor and customize AgilePM to suit the needs of different projects Use AgilePM in conjunction with other project management methods such as PRINCE2® Prepare yourself for the Practitioner exam in AgilePM Roles and Responsibilities - The PM View The roles Key project manager relationships Agile Project Management - Through the Lifecycle The DSDM process and the project lifecycle Project management focus phase by phase The Effective Use of Products The products Deliver on Time - Combining MoSCoW & Timeboxing Ensuring effective prioritisation Bringing MoSCoW and timeboxing together People, Teams, and Interactions Effective communication Collaboration Requirements and User Stories What is a requirement? User stories Estimating - How and When Coping with uncertainty Estimating through the lifecycle Project Planning through the Lifecycle Planning in a DSDM project Planning activities phase by phase Quality - Never Compromise Quality What do we mean by quality? Solution and process quality Risk Management Project risk How DSDM helps mitigate project risk Tailoring the Approach The project approach questionnaire Summary and Next Steps

Network+ training course description This network+ course covers the TCP/IP side of the exam. For delegates to pass the exam it is important that they meet the prerequisites, self study is also required. An intensive hands on IP foundation. The course focuses on all parts of TCP/IP including layers 4 to 7 on end stations as well as layer 3 on routers. The TCP/IP protocols are also studied to enable delegates to be able to troubleshoot TCP/IP using Wireshark. Hands on sessions are used to reinforce the theory rather than teach specific manufacturer equipment. What will you learn Use ping, traceroute and other tools to diagnose faults on a network. Configure IP on PCs and routers. Plan IP addresses and subnets. Analyse IP and TCP packets using an analyser. Troubleshoot TCP/IP. Network+ training course details Who will benefit: Those wishing to pass the Network+ exam. Prerequisites: Introduction to data communications & networking Duration 5 days Network+ training course contents What is TCP/IP? TCP and IP are protocols, 7 layer model, network layers, hardware/software layers, internetworking, protocols, What is IP? What is TCP? The internet, The IAB, RFCs. Ping and Wireshark Host configuration, IP addresses, subnet masks, default gateways, ping. Hands on Base configuration. Testing with ping. Analysing packets with Wireshark. Switches and Wireshark Switches versus hubs, layer 2 forwarding table, flooding, broadcasts. Hands on Building a switched based network. Configuring network devices Configuration options, console port, putty, telnet. Hands on Configuring switches, telnet. IP IP packet format, protocol field, TTL, DiffServ, fragments, ICMP. Hands on IP packet analysis. IP addressing 32 bits, dotted decimal, rules, networks, role of subnet masks, simple subnetting, prefix notation. Broadcasts, special use addresses. Hands on Planning and implementing addressing. IP and the lower layers ARP, media not supporting ARP. Hands on ARP. Routing What are routers? What routers do, default gateways, routing and addressing, routing tables, ways to update routing tables. Hands on Building a routed network, traceroute. Routing protocols IGPs and EGPs, RIP, RIPv2, Why not to use RIP, OSPF, OSPF metrics, convergence, distance vector protocols, link state protocols. Hands on OSPF, analysing routing tables, loopbacks. Network simulators Network simulators, EVE-NG, GNS3, CML. Hands on Using EVE-NG. Subnetting Subnetting to the bit level, ranges, how prefixes are used. Hands on Subnetting. VLANS and IP addressing What are VLANs, tagging, 802.1Q, Inter VLAN routing. Hands on Inter VLAN routing. TCP and UDP Layer 4, port numbers, client ports, broadcasts multicasts and layer 4, UDP header, TCP header, connections, ACK, sliding windows, options, connection states. Sockets. Hands on Analysing TCP packets. IPv4 address configuration Private addresses, NAT, NAPT, dynamic addressing, DHCP, link local addresses. Hands on DHCP, NAT. IPv6 What is IPv6, 128 bit addresses, address formats, IPv6 address allocation, header format, migration, dual stack, tunnelling, NAT64, DNS64. Hands on IPv6 setup troubleshooting. IPv6 address configuration Static addressing, EUI-64 addresses, IPv6 address order, SLAAC, DHCPv6. Hands on SLAAC. Applications Clients, servers, HTTP, Email, resource sharing, VoIP, video, terminal emulation, remote desktop. Network management and SNMP. Hands on Servers, TFTP, VoIP packet analysis. DNS Names and addresses, hosts file, how DNS works. FQDNs, DNS client configuration. Hands on Troubleshooting DNS. Security Firewalls, firewall architectures, DMZ, how firewalls work, proxy servers, filtering, ACLs, IDS, VPNs, authentication, encryption, tunnels, secure protocols. Hands on Firewalls, SSH Troubleshooting Methods, tools. Using the 7 layer model. Troubleshooting toolkits. Hands on Fixing the network.

ITIL® 4 Specialist: High Velocity IT: In-House Training The ITIL® 4 Specialist: High-Velocity IT module is part of the Managing Professional stream for ITIL® 4. Candidates need to pass the related certification exam for working towards the Managing Professional (MP) designation. This course is based on the ITIL® 4 Specialist: High-Velocity IT exam specifications from AXELOS. With the help of ITIL® 4 concepts and terminology, exercises, and examples included in the course, candidates acquire the relevant knowledge required to pass the certification exam. This module addresses the specifics of digital transformation and helps organizations to evolve towards a convergence of business and technology, or to establish a new digital organization. It was designed to enable practitioners to explore the ways in which digital organizations and digital operating models function in high-velocity environments. Working practices such as Agile and Lean, and technical practices and technologies such as Cloud, Automation, and Automatic Testing are included. What You Will Learn At the end of this course, participants will be able to: Understand concepts regarding the high-velocity nature of the digital enterprise, including the demand it places on IT. Understand the digital product lifecycle in terms of the ITIL operating model. Understand the importance of the ITIL guiding principles and other fundamental concepts for delivering high-velocity IT. Know how to contribute to achieving value with digital products. Course Introduction Let's Get to Know Each Other Course Learning Objectives Target Audience Characteristics ITIL® 4 Certification Scheme Course Components Course Agenda Module-End Exercises Exam Details Introduction to High-Velocity IT High-Velocity IT Digital Technology Digital Organizations Digital Transformation High-Velocity IT Approaches Relevance of High-Velocity IT Approaches High-Velocity IT Approaches in Detail High-Velocity IT Operating Models Introduction ITIL® Perspective High-Velocity IT Aspects High-Velocity IT Applications ITIL® Building Blocks for High-Velocity IT Digital Product Lifecycle Service Value Streams Four Dimensions of Service Management ITIL® Management Practices High-Velocity IT Culture Key Behavior Patterns ITIL® Guiding Principles Supporting Models and Concepts for Purpose Ethics Design Thinking Supporting Models and Concepts for People Reconstructing for Service Agility Safety Culture Stress Prevention Supporting Models and Concepts for Progress Working in Complex Environments Lean Culture ITIL® Continual Improvement Model High-Velocity IT Objectives and Techniques High-Velocity IT Objectives High-Velocity IT Techniques Techniques for Valuable Investments Prioritization Techniques Minimum Viable Products and Services Product / Service Ownership A/B Testing Techniques for Fast Developments Basic Concepts Related to Fast Development Infrastructure as Code Reviews Continual Business Analysis Continuous Integration / Continuous Delivery (CI/CD) Continuous Testing Kanban Techniques for Resilient Operations Introduction to Resilient Operations Technical Debt Chaos Engineering Definition of Done Version Control Algorithmic IT Operations ChatOps Site Reliability Engineering (SRE) Techniques for Co-created Value Basic Concepts of Co-created Value Service Experience Techniques for Assured Conformance DevOps Audit Defense Toolkit DevSecOpsPeer Review

APM Project Fundamentals Qualification (PFQ): In-House Training This practical course gives Participants a solid introduction to the fundamentals of project management and to prepare them for the one-hour, multiple-choice exam held at the end of the course. The APM Project Fundamentals Qualification (PFQ) is an entry-level qualification suitable for those who are new to project management and working in a project team, and who wish to understand the standard terminology. The goal of this course is to prepare you to successfully pass the exam. What you will Learn You'll learn how to: Identify project management terminology and context Identify project management processes Identify the roles involved in project management Describe project success criteria and benefits Prepare project documentation Acquire the level of understanding needed to pass the APM PFQ examination Getting Started Introductions Course structure Course goals and objective Project Context Project characteristics Project management processes Business and project context Organizational roles Project Lifecycle Programme and portfolio management Project Concept Phase Stakeholder management Project success and benefits management Business case Benefits People in Projects Leadership and teamwork Communication Project Definition Phase Project management plan Quality management Risk management Scope management Scheduling Resource management Estimating Procurement Project Implementation Phase Change control and configuration management Issue management Information management Project Hand-over and Close-out Phase Hand-over and close-out Post-project review Revision and Exam Revision and practice questions APM PFQ examination

Application delivery training course description A concise hands on course covering section 1 of the F5 networks AD fundamentals exam. The course focuses on the technology and not any one manufacturers product. This will enable delegates to work with devices from any manufacturer. Practical hands on with Cisco and Microsoft systems follow the major sessions to reinforce the theory. What will you learn Explain, compare and contrast the OSI layers. Explain protocols and technologies specific to the data link layer. Explain protocols and apply technologies specific to the network layer. Explain the features and functionality of protocols and technologies specific to the Transport layer. Explain the features and functionality of protocols and technologies specific to the Application layer Application delivery training course details Who will benefit: Anyone taking the F5 networks AD fundamentals exam. Technical staff working in Application delivery. Prerequisites: None. Duration 3 days Application delivery training course contents What is TCP/IP? Protocols, services. The Internet, RFCs, The OSI 7 layer model. Layer 1 cables. Ping and addressing Host configuration of IP addresses, subnet masks, default gateways, ipconfig, ping. Hands on Configuring TCP/IP, ping. Ethernet and the data link layer 802.3, evolution, choosing cables, topologies, CSMA/CD, hubs, NICs, MAC addresses. Hands on Analysing MAC addresses. IP and Ethernet Relationship. Hands on ARP. What is a switch? Switches connect multiple devices, switches versus hubs, simultaneous conversations, switches work at layer 2, the forwarding database, how the forwarding database is built, broadcast and collision domains. Hands on Difference between hubs and switches. Link aggregation Loops, broadcast storms, STP, Architectures, modes, link aggregation, load sharing, resilience. Hands on fail over times. VLANs Virtual versus physical LANs, Why have VLANs? Broadcast domains. Hands on VLANs effect on traffic. IP IP datagram format, ICMP datagram format. Hands on Analysing IP and ICMP packets. IP addressing Format of addresses, registering, dotted decimal notation, choosing addresses, DHCP. Hands on impact of addressing errors. Routing What is a router? Reason for routing, network addressing, default gateways, how routing works, routing and addresses, routing tables, traceroute. Hands on Using a routed network. Routing protocols IGPs, EGPs, RIP & OSPF. Hands on Configuring routers for RIP and OSPF. Subnetting When to subnet, subnet masks, working with subnetting, CIDR notation. Hands on Changing the routed network to use subnetting. The transport layer UDP, Ports, TCP, acknowledgements, sliding windows. Hands on Analysing packets. Applications Clients, servers, web, Email SMTP, resource sharing, IM, VoIP, Video over IP, terminal emulation, FTP. Hands on FTP, SIP. Web pages URLs, DNS, names to IP addresses. HTTP, versions and status codes. Keepalives, cookies. Hands on Analysing HTTP headers.

Linux engineer certification training course description LPIC-2 is the second certification in LPI's multi level professional certification program. This course teaches the skills necessary to pass the LPI 201 exam; the first of two LPIC-2 exams. Specifically, the course covers the administration of Linux systems in small to medium sized mixed networks. What will you learn Perform advanced administration tasks. Perform advanced file system administration. Linux engineer certification training course details Who will benefit: Linux administrators. Prerequisites: Linux system administration (LPIC-1) Duration 5 days Linux engineer certification fundamentals training course contents Part I The LPI 201 Exam Starting a System The Linux Boot Process, Firmware Startup, BIOS Startup, UEFI Startup, Linux Bootloaders, GRUB Legacy, GRUB 2, Alternative Bootloaders, Secure Bootloaders, Process Initialization, SysV Method, systemd Method, Upstart Method, System Recovery, Kernel Failures, Root Drive Failure. Maintaining the System Fluid Messaging, Static Messaging, System backups, Backup Strategies, Performing Backups, Installing Programs from Source, Obtaining and unpacking Installation Files, Compiling Programs, Resource Usage: Managing, measuring, predicting and troubleshooting. Mastering the Kernel What Is the Kernel? Kernel Features, Parts of the Kernel, Kernel Versions, Obtaining Source Code, Creating the Configuration File, Compiling and Installing the Kernel, Compiling and Installing Modules, Creating an Initial RAM Disk, Booting the New Kernel, Creating a Kernel Package, Maintaining the Kernel, Working with Module Files, Module Commands, Working with Hardware, Automatically Detecting Hardware, Troubleshooting the Kernel. Managing the Filesystem The Linux Filesystem, Filesystem Structures, Filesystem Types, Making Filesystems, Attaching Filesystems, Memory-Based Linux Filesystems, the Btrfs Filesystem, Btrfs Subvolumes, Btrfs Snapshots, Optical Filesystems, Swap Filesystems, Network-Based Filesystems, Auto-Mounting, Encrypted Filesystems, Maintaining Linux Filesystems, Adjusting a Filesystem, Checking and Repairing a Filesystem, SMART. Administering Advanced Storage Devices Configuring RAID, Implementing RAID on Linux, Managing a RAID Array, Adjusting Storage Devices, Looking at Drive Interface Concepts, Testing and Tuning Drives, Implementing iSCSI, Managing Logical Volumes, LVM, Creating Logical Volumes, Supporting Logical Volumes, Understanding the Device Mapper. Navigating Network Services Networking Basics, The Physical Layer, The Network Layer, The Transport Layer, The Application Layer, Configuring Network Features, Network Configuration Files, Graphical Tools, Command-Line Tools, Basic Network Troubleshooting, Checking the Log Files, the ARP Cache, Sending Test Packets, Testing Network Routes, Testing Client/Server Connectivity, Finding Host Information, Network Security, Advanced Network Troubleshooting, Viewing Open Network Connections, Viewing Network Statistics, Scanning the Network, Capturing Network Traffic.