46 Courses in London

Networks demystified training course description A concise overview course covering all aspects of networking with particular emphasis of use of the 7 layer model as a framework for discussing and learning new network terms enabling delegates to recognise the main buzzwords used in the industry. What will you learn Use the 7 layer model to classify networking terms. Differentiate between LANS and WANS. Recognise bandwidth measurements. List LAN and WAN technologies. Recognise cabling issues in a network. Networks demystified training course details Who will benefit: Sales staff, managers and other non-technical personnel. Technical personnel may benefit more from our Intro to data communications and networking course. Prerequisites: None. Duration 1 day Networks demystified training course contents What are networks? What is a network? Types of network, Local Area Networks (LANs), Wide Area Networks (WANs), connecting networks together with routers. The 7 layer model What is the 7 layer model? The importance of standards, using the 7 layer model to classify networking terms. Cables Copper, Fibre, Air, standards, connectors, LAN cables, WAN cables, distance limitations, hubs and repeaters, other issues. The radio spectrum. Bandwidth Bits and bytes. Bandwidth measurements, common technologies and their bandwidth, the impact of applications on bandwidth. Full and half duplex. Joining cables together to increase bandwidth (Link aggregation). LANs and WANs What is Ethernet? What is WiFi? What are Leased lines? What is MPLS? Ethernet switches Ethernet 'packets', MAC addresses, what is a switch, what is the difference between a hub and a switch. TCP/IP What is TCP/IP? What is a protocol? What is IP? What is TCP? The role of routers in joining LANS and WANS, What is the Internet? Applications Ways to use the network, clients, servers, web browsing and HTTP, Email, instant messaging, multimedia applications.

This highly practical workshop will help you become a more effective negotiator and learn the skills that master negotiators use.

Level 3 Supporting Teaching and Learning in Schools Certificate is a RQF qualification & this course play a major role by working with pupils & supporting teachers. This course has been designed to teach the knowledge required to be a teaching assistant and support children’s learning from birth to nineteen years. The course covers various requirements needed to work as an assistant within schools and how to approach a career in the education sector.  ABOUT THIS COURSE: Level 3 Award in Supporting Teaching and Learning is a knowledge only qualification. Experience in the real work environment is not required and the entire course is completed online. Please note that this is a knowledge only Level 3 qualification and does not require any practical assessments. COURSE ASSESSMENT: To pass this course learners must pass 4 assignments. These are completed after navigating through the corresponding lessons and writing your answers to assignment questions. Once these have been read and marked by your personal tutor, feedback and marks are provided to students which contain helpful tips to improve work in future assignments. UNITS COVERED: • Unit 1: Schools and Colleges as Organisations • Unit 2: Support Health and Safety in a Learning Environment • Unit 3: Understand how to Safeguard Children and Young People • Unit 4: Understand How Children and Young People Develop HOW MUCH THIS COURSE COST? Level 3: Award in Supporting Teaching and Learning Course will cost for Distance Learning / Online £249.99 and for class based £349.99. There is no any hidden fess/cost. 

Remote working is on the increase. However, managing a remote team is not always the same as managing a traditional, single-site office-based team.

Definitive IP routing training course description An intensive hands on IP routing course leading to LINX Accredited Internet Technician stage 2 focusing on routing in an IP environment. The course concentrates on OSPF and IS-IS but also covers BGP and MPLS. Hands on sessions are used to reinforce the theory rather than teach specific manufacturer equipment. A multiple choice exam, leading to the LAIT II certification, is available after the course. The exam consists of 60 questions and lasts 2.0 hours. What will you learn Calculate subnet numbers in seconds. Configure and troubleshoot static routes. Explain how OSPF works. Build resilient networks with VRRP and OSPF. Implement and troubleshoot OSPF, IS-IS and VLANS. Evaluate and choose appropriate routing protocols for particular scenarios. An optional multiple choice exam, leading to the LAIT II certification, is included at the end of the course. The exam consists of 60 questions and lasts 2.0 hours. Definitive IP routing training course details Who will benefit: Network engineers Prerequisites: TCP/IP Foundation for engineers Duration 5 days Definitive IP routing training course contents Basic routing Review of LAIT I routing, reading routing tables. Hands on Setting up a routed network. Static routes Why use static routes? Default routes. Hands on Configuring static routes. First hop redundancy Default gateways, VRRP/HSRP/GLBP. Load sharing, critical IP addresses. Hands on VRRP. Basic OSPF What is OSPF? Process IDs, passive interfaces. Hands on Simple OSPF. Subnetting Bit boundary subnetting, calculating network numbers. Exercise: Subnetting. OSPF overview Metrics, convergence, DV vs. Link state, IGPs, classless, OSPF features, load sharing, OSPF authentication. Hands on OSPF features. OSPF within an area How OSPF works, LSAs, LSDB, router IDs, hellos, configuring hellos, exchange protocol. Hands on Investigating OSPF structures. OSPF areas Scalability, why areas? Area IDs, area 0, ABRs, ABR resilience, areas & LSDBs & LSAs, virtual links. Hands on Multi area OSPF. Redistribution Multiple routing protocols, common scenarios, routing distance, External LSAs, E1 and E2. Type 4 LSAs. OSPF and default routes. Hands on Configuring static route redistribution. Route aggregation Route summarisation. How to aggregate, CIDR, ASBR summarisation. Hands on OSPF address summarisation. OSPF packet formats OSPF packets, protocol stack, packet flows, OSPF headers, neighbours, neighbour states, DRs, adjacencies, BDRs, DR election. Hands on Analysing OSPF packets, troubleshooting. OSPF OSPF stub areas LSA types, area types, area architecture, stub areas, default routes, benefits & disadvantages of stub areas, TSSAs, NSSAs, Type 7 LSAs. Hands on Stub and TSSA configuration. IS-IS End systems, Intermediate systems, how IS-IS works, IS-IS router ID, Level 1, Level 2, IS-IS hierarchy. Hands on Configuring IS-IS, troubleshooting IS-IS. The Internet Autonomous systems, Peering, transit, looking glasses. Hands on Internet routing tables. Basic BGP IGPs, EGPs, What's BGP? BGP RIB, in/out process, tables peers, adding routes. Hands on Simple configuration and troubleshooting. Routing IPv6 Multi protocol routing, IPv6 addressing, IPv6 routing tables, IPv6 static routes, OSPFv3, IS-IS and IPv6. Hands on Routing IPv6. STP and L2 routing STP, RSTP, L2 IS-IS, Multi system link aggregation. Hands on RSTP. MPLS Core MPLS, MPLS and the 7 layer model, MPLS protocol, MPLS standard, MPLS runs on routers, MPLS history, Why MPLS?, LSRs, PE and P router roles, FEC, swapping labels, MPLS packet format. Hands on Enabling MPLS. Testing and troubleshooting of MPLS. Appendix EIGRP: How EIGRP works, DUAL.

LINX II training course description An intensive hands on IP routing course leading to LINX Accredited Internet Technician stage 2 focusing on routing in an IP environment. The course concentrates on OSPF and IS-IS but also covers BGP and MPLS. Hands on sessions are used to reinforce the theory rather than teach specific manufacturer equipment. A multiple choice exam, leading to the LAIT II certification, is available after the course. The exam consists of 60 questions and lasts 2.0 hours. What will you learn Calculate subnet numbers in seconds. Configure and troubleshoot static routes Explain how OSPF works. Build resilient networks with VRRP and OSPF. Implement and troubleshoot OSPF, IS-IS, simple BGP and simple MPLS. Evaluate and choose appropriate routing protocols for particular scenarios. LINX II training course details Who will benefit: Network engineers. Prerequisites: LAIT I attendance and 55%+ exam score OR LAIT I exam only and pass (70%+) OR CCNA and take LAIT I exam on this course. Duration 5 days LINX II training course contents Basic routing Review of LAIT I routing, reading routing tables. Hands on Setting up a routed network. Static routes Why use static routes? Default routes. Hands on Configuring static routes. First hop redundancy Default gateways, VRRP/HSRP/GLBP. Load sharing, critical IP addresses. Hands on VRRP. Basic OSPF What is OSPF? Process IDs, passive interfaces. Hands on Simple OSPF. Subnetting Bit boundary subnetting, calculating network numbers. Exercise: Subnetting. OSPF overview Metrics, convergence, DV vs. Link state, IGPs, classless, OSPF features, load sharing, OSPF authentication. Hands on OSPF features. OSPF within an area How OSPF works, LSAs, LSDB, router IDs, hellos, configuring hellos, exchange protocol. Hands on Investigating OSPF structures. OSPF areas Scalability, why areas? Area IDs, area 0, ABRs, ABR resilience, areas & LSDBs & LSAs, virtual links. Hands on Multi area OSPF. Redistribution Multiple routing protocols, common scenarios, routing distance, External LSAs, E1 and E2. Type 4 LSAs. OSPF and default routes. Hands on Configuring static route redistribution. Route aggregation Route summarisation. How to aggregate, CIDR, ASBR summarisation. Hands on OSPF address summarisation. OSPF packet formats OSPF packets, protocol stack, packet flows, OSPF headers, neighbours, neighbour states, DRs, adjacencies, BDRs, DR election. Hands on Analysing OSPF packets, troubleshooting. OSPF OSPF stub areas LSA types, area types, area architecture, stub areas, default routes, benefits & disadvantages of stub areas, TSSAs, NSSAs, Type 7 LSAs. Hands on Stub and TSSA configuration. IS-IS End systems, Intermediate systems, how IS-IS works, IS-IS router ID, Level 1, Level 2, IS-IS hierarchy. Hands on Configuring IS-IS, troubleshooting IS-IS. The Internet Autonomous systems, Peering, transit, looking glasses. Hands on Internet routing tables. Basic BGP IGPs, EGPs, What's BGP? BGP RIB, in/out process, tables peers, adding routes. Hands on Simple configuration and troubleshooting. Routing IPv6 Multi protocol routing, IPv6 addressing, IPv6 routing tables, IPv6 static routes, OSPFv3, IS-IS and IPv6. Hands on Routing IPv6. STP and L2 routing STP, RSTP, L2 IS-IS, Multi system link aggregation. Hands on RSTP. MPLS Core MPLS, MPLS and the 7 layer model, MPLS protocol, MPLS standard, MPLS runs on routers, MPLS history, Why MPLS?, LSRs, PE and P router roles, FEC, swapping labels, MPLS packet format. Hands on Enabling MPLS. Testing and troubleshooting of MPLS. Appendix EIGRP: How EIGRP works, DUAL.

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.

LINX 1 training course description An intensive hands on IP foundation leading to LINX Accredited Internet Technician stage 1. 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. A multiple choice exam, leading to the LAIT I certification, is available after the course. The exam consists of 40 questions and lasts 1.5 hours. 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. LINX 1 training course details Who will benefit: Network engineers. Prerequisites: None. Duration 5 days LINX 1 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.

Network fundamentals training course description An intensive hands on IP foundation leading to LINX Accredited Internet Technician stage 1. 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. A multiple choice exam, leading to the LAIT I certification, is available after the course. The exam consists of 40 questions and lasts 1.5 hours. 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 fundamentals training course details Who will benefit: Network engineers. Prerequisites: None Duration 5 days Network fundamentals 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.

TCP/IP training course description An intensive hands on IP foundation leading to LINX Accredited Internet Technician stage 1. 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. A multiple choice exam, leading to the LAIT I certification, is available after the course. The exam consists of 40 questions and lasts 1.5 hours. 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. TCP/IP training course details Who will benefit: Network engineers. Prerequisites: None Duration 5 days TCP/IP 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.