162 Architecture courses in Sheffield

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.

TOTAL MPLS VPN FOR ENGINEERS TRAINING COURSE DESCRIPTION A hands on course concentrating solely on MPLS VPNs. The course begins with a review of VPN basics before moving onto L3VPNs and MBGP, followed by L2VPNs. WHAT WILL YOU LEARN * Compare, contrast and evaluate MPLS L2VPNs versus L3VPNs. * Describe, configure and troubleshoot MPLS L3VPNs. * Configure and troubleshoot MBGP. * Describe, configure and troubleshoot MPLS L2VPNs. TOTAL MPLS VPN FOR ENGINEERS TRAINING COURSE DETAILS * Who will benefit: Anyone working with MPLS VPNs. * Prerequisites: Concise MPLS for engineers * Duration 2 days TOTAL MPLS VPN FOR ENGINEERS TRAINING COURSE CONTENTS * MPLS VPN basics LSR, PE and P router roles. What is a VPN? MPLS VPN types, MPLS VPN comparison, MPLS L3VPN, L2VPN. VPN architectures. Hands on: Building the base network. * L3VPN Separate routing tables, The Virtual Routing Table, VRFs, Route Distinguisher (RD), VNPv4 addresses. Hands on: Minimal VRF configuration, routing between customer and provider (PE-CE). * MBGP MP-BGP, IPv4 routing, IPv6 routing, VPNv4 addresses, VPNv6 addresses. Exchanging labels. Exchanging routes. Route targets, communities. Route reflectors. Hands on: MBGP setup. MPLS L3VPN troubleshooting. * L2VPN Why L2 not L3? Services: TDM, ATM, Frame Relay, Ethernet. Pseudowires. Hands on: Simple L2VPN configuration. * Pseudowires VPWS, AToM, Attachment Circuit, Traffic encapsulation, Ethernet over MPLS. Ethernet MTU considerations. VC types. Hands on: PW configuration and troubleshooting. * VPLS Ethernet multipoint connectivity. Virtual Forwarding Instance (VFI), Virtual Switching Instance. Flooding, MAC address management, split horizons. Hierarchical VPLS. Signalling: LDP based. BGP based. Auto discovery. Hands on: VPLS configuration and troubleshooting. * Next generation L2VPN E-VPN, PBB-EVPN.

SERVER LOAD BALANCING COURSE DESCRIPTION This two-day Server Load Balancing course introduces the concepts of SLB from the reasons to implement, through the basics and then onto details studies of load distribution, health checks, layer 7 switching and Global SLB. WHAT WILL YOU LEARN * Explain packet paths when implementing SLB. * Recognise the impact of different topologies. * Evaluate SLB load distribution methods. * Describe how load balancers can improve security. * Explain how GSLB works. SERVER LOAD BALANCING COURSE DETAILS * Who will benefit: Anyone working with SLB. * Prerequisites: None. * Duration 2 days SERVER LOAD BALANCING COURSE CONTENTS * Introduction Concept, reasons, benefits, alternatives. Other features: Security, Caching. * SLB concepts Architectures, Virtual servers, real servers, Virtual IP address, health checks. DNS load balancing. Packet walk using SLB. * Load balancing 6 modes of bonding and load balancing without SLB. ISP load balancing. Health. Distribution policies: Round Robin, least connections, weighted distributions, response time, other variations. Persistent versus concurrent. * Layer 4 switching L2 SLB, L3 SLB, single arm SLB, DSR, more packet walking, TCP versus UDP, Port numbers. * Layer 7 switching Persistence. Cookie switching, Cookie hashing, Cookie insertion, URL switching, URL Hashing, SSL. * Health checks Layer 3: ARP, ping. Layer 4: SYN, UDP. Layer 7: HTTP GET, Status codes, HTTP keepalives, content verification, SSL. Other application keepalives. What to do after failure and recovery. * Security DOS attack protection, SYN attack protection, Rate limiting: connections, transactions. SSL offload. * Redundancy Hot standby, Active standby, Active active. Stateful, stateless. VRRP, STP. * GSLB Anycasting. DNS, TTL, DNS load balancing, problems with DNS load balancing,. HTTP redirect, health, thresholds, round trip times, location.

COPPER CABLING SYSTEMS TRAINING COURSE DESCRIPTION A hands on training course covering installation, termination and testing of copper cables in an internal environment. The course covers all copper cabling but hands on sessions focus on unshielded Twisted Pair. WHAT WILL YOU LEARN * Recognise different copper cables and when to use them. * Install and terminate UTP cables. * Test and certify UTP cables. COPPER CABLING SYSTEMS TRAINING COURSE DETAILS * Who will benefit: Professional cable installers. * Prerequisites: None * Duration 2 days COPPER CABLING SYSTEMS TRAINING COURSE CONTENTS * Communications principles Use of cables in data networks, Use of cables in telephone networks, conductors and insulators, current, resistance, voltage and Ohms law. * Copper cabling per cabling Coaxial versus twisted pair. UTP and STP. Cat 5, 5e, 6 and 7. Straight through, cross over, others. Hands on: Building a simple network. * Cable termination Cable termination Preparing cables for termination, termination techniques, termination tools. Wiring standards, colour codes. Hands on: Making your own cables and using them in the simple network. * Cable architectures Structure cabling system components, topologies, horizontal wiring, vertical wiring, telecomms rooms, server rooms. Hubs, switches and routers implications. Trunking. Cabling documentation, symbols and abbreviations. Hands on: punch blocks, testing continuity. * Cable installation Site surveys: pathways and spaces, support structures, distance limitations. Recommended installation practices, laying and setup, retrofits. Health and safety factors, fire and building codes. Hands on: Performing a site survey, installing cable with floor boxes. * Testing Basic testing, volt meters, tone set, Cat 5 testers, Cat 5e testers, Cat 6 testers. Certifying performance, Cat 5, 5e and 6 performance parameters. External factors. Common faults. Hands on: Testing an installation, troubleshooting faults. * Other aspects Telephony cables, shielded cables. Hands on: installing telephone cable, testing continuity.

TOTAL SIPP COURSE DESCRIPTION SIPp is a robust performance testing tool designed for evaluating the SIP protocol. This comprehensive course takes you on a journey from the initial installation of SIPp to mastering fundamental scenarios, exploring diverse architectures, delving into statistics analysis, and crafting XML scenario files. WHAT WILL YOU LEARN * Monitor SIP traffic with SIPp. * Use SIPp for performance testing. * Use the standard SIPp scenarios. * Create custom scenarios in XML for SIPp. TOTAL SIPP COURSE DETAILS * Who will benefit: Those working with SIP. * Prerequisites: Definitive SIP for engineers * Duration 2 days TOTAL SIPP COURSE CONTENTS * Introduction What is SIPp? SIP review: UAC, UAS, INVITE, BYE. Sample SIP call flows. Hands on Wireshark, SIP call flow. * Installing SIPp Getting SIPp, installing SIPp. * Using SIPp Running sipp. sipp with uas scenario, sipp with uac scenario. The integrated scenarios. Online help. Hands on uac, uas. * Controlling SIPp Hot keys, commands, UDP socket. Running SIPp in the background. Traffic control. SIPp performance testing. Hands on Changing call rates, remote control, pausing traffic. * Monitoring SIP traffic Scenario screen, statistics. Response times, counters. Hands on Monitoring SIP traffic. * More integrated scenarios SIPp and media and RTP. 3PCC. 3PCC extended. Transport modes: UDP, TCP, TLS, SCTP, IPv6 mono and multi socket. Hands on Third Party Call Control. * XML What is XML? Content, markup, elements, attributes. Start tags, end tags. Hands on Displaying embedded scenarios, looking at the XML files of the integrated scenarios. * Creating your own XML scenarios scenario, message commands, send, recv, nop, pause, sendCmd, recvCmd, common sipp scenario attributes, command specific sipp scenario attributes. XML DTD, jEdit. Hands on uac and uas scenario XML files. * Recv actions Log and warning, exec, variables, variable types, variable scope. External variables. Hands on RTP streaming, Change a calls network destination, injection files. * Regular expressions What is an RE. POSIX 1003.2. Re injection. Validation. Hands on regex example.

DWDM TRAINING COURSE DESCRIPTION A concise overview of Wave Division Multiplexing (WDM) with both Coarse Wave Division Multiplexing (CWDM) and Dense Wave Division Multiplexing (DWDM) being covered. The course starts with a review of the relevant elements of fibre transmission and multiplexing before then studying WDM components and architectures. Reliability, resilience and management are then followed by WDM services and futures. WHAT WILL YOU LEARN * Explain the benefits of WDM. * Describe Dispersion and four way mixing. * Describe the different WDM equipment components. * Describe different WDM architectures. * Explain How DWDM works. DWDM TRAINING COURSE DETAILS * Who will benefit: Anyone working with CWDM/DWDM. * Prerequisites: Telecommunications Introduction * Duration 2 days DWDM TRAINING COURSE CONTENTS * Fibre communications review Optical transmission, Fibre characteristics, Fibre component parts. Multi Mode Fibre (MMF). Single Mode Fibre (SMF). Fibre connections. Lasers. Attenuations, dispersion, optical signal noise ratios (OSNR) and their effects. Channel Spacing and Signal Direction. Limiting factors to single wavelength. * WDM overview Multiplexing, TDM, WDM benefits. WDM standards. CWDM vs. DWDM. Four Wave Mixing (FWM). Impact and countermeasures to FWM on WDM. * CWDM ITU G.694.2, channels, channel spacing. * DWDM ITU G.694.1, channels, channel spacing. * WDM Equipment Components Equipment components and building blocks. Optical Terminal Multiplexers (OTM). Optical Add/Drop Multiplexers (OADM). Adding versus dropping. Optical Amplifiers. Erbium Doped Fibre Amplifiers (EDFA). Transponders and Combiners. WDM/DWDM Hubs. Optical and Electrical Cross Connects (OXCs/DXCs). Types of Cross Connects (Transparent/Opaque). Advantages and disadvantages of various Optical cross connects. * WDM Architectures WDM network sections. Point-to-Point, Optical switches, mesh, ring and star topology. Example of combined WDM and other technology network. Wavelength converting transponders, 1R, 2R, 3R. * Protection for WDM Sub 50ms failover. Equipment protection. Card protection. Y cable, Splitter protection. Far end laser control. Line protection. OMSP 1+1, OMSP 1:1, OMSP 1: N. Self healing optical ring. Sub Network Connection Protection (SNCP). Automatically Switched Optical Networks (ASON). * WDM Management Options In band management. Out of band management. The Optical Supervisory Channel (OSC). OSC capabilities. * WDM services WDM Access. Bit rates, Transparent Networks. Modulation, DQPSK. SDH over WDM. Migrating from SDH to DWDM. Ethernet over WDM, IP over WDM. * Optical Transport Networks G.709, 'digital wrapper', Optical Channel Payload Unit (OPU), Optical Channel Transport Unit ( OTU), Optical Channel Data Unit (ODU). OTU1, OTU2, OTU3, OTU4. * WDM Futures All optical amplification, Raman amplification, distributed, lumped. Bit rates. Solitons. Coherent technologies.

CLOUD TECHNOLOGIES TRAINING COURSE DESCRIPTION This course provides an introduction to cloud technologies, including, configuration and deployment, security, maintenance, and management. It covers all aspects of cloud computing infrastructure. It will help you to master the fundamental concepts, terminology, and characteristics of cloud computing. . WHAT WILL YOU LEARN * Contrast and compare AWS, GCP and Azure. * Explain the different cloud services, models and characteristics. * Explain cloud virtualization components and options. * Explain cloud security options. * Describe cloud automation, orchestration, monitoring and performance options. CLOUD TECHNOLOGIES TRAINING COURSE DETAILS * Who will benefit: Anyone working with or looking to work with cloud technologies. * Prerequisites: None. * Duration 2 days CLOUD TECHNOLOGIES TRAINING COURSE CONTENTS * What is the cloud? The Internet Cloud computing Benefits Disadvantages * Cloud services IaaS, PaaS, SaaS, others. * Cloud service providers AWS, GCP Microsoft Azure, others * Cloud architectures Private, public, hybrid others Cloud based delivery * The cloud and virtualization Virtual Machines, networks, storage, deployment. * Accessing the Virtual Machine * Secure cloud environments Security considerations. Data privacy considerations * Automation and orchestration * Monitoring and performance Performance Cost issues Cost containment

IP SECURITY TRAINING COURSE DESCRIPTION Connection to the Internet is becoming an essential business tool. This course looks at firewalls, digital certificates, encryption and other essential topics for e-commerce sites. A generic course that looks at firewalls and VPNs. Hands on sessions include using hacking tools and configuring firewalls. WHAT WILL YOU LEARN * Describe: Basic security attacks RADIUS SSL IPSec VPNs * Implement digital certificates * Deploy firewalls to protect Web servers and users. * Secure Web servers and clients. IP SECURITY TRAINING COURSE DETAILS * Who will benefit: Network administrators. Network operators. Security auditors * Prerequisites: TCP/IP foundation for engineers * Duration 2 days IP SECURITY TRAINING COURSE CONTENTS * TCP/IP review Brief overview of the relevant headers. Hands on Download software for course, use analyser to capture passwords on the wire. * Security review Policies, Types of security breach, denial of service, data manipulation, data theft, data destruction, security checklists, incident response. * Security exploits The Internet worm, IP spoofing, SYN attack, hijacking, Ping o' Death… keeping up to date with new threats. Hands on Use a port scanning tool, use a 'hacking' tool. * Firewalls Products, Packet filtering, DMZ, content filtering, stateful packet inspection, Proxies, firewall architectures, Intrusion Detection Systems, Viruses. Hands on Set up a firewall and prevent attacks. * NAT NAT and PAT, Why use NAT, NAT-ALG, RSIP. * Encryption Encryption keys, Encryption strengths, Secret key vs Public key, algorithms, systems, SSL, SSH, Public Key Infrastructures. Hands on Run a password-cracking program. * Authentication Types of authentication, Securid, Biometrics, PGP, Digital certificates, X.509 v3, Certificate authorities, CRLs, PPP authentication, RADIUS. Hands on Using certificates. * Web client and server security Cookies, browser certificates, censorship, PICS. Operating system security, Web server user authentication, Restricting access, Logging, Securing CGI scripts. Hands on Browser security. * VPNs and IPSec What is a VPN, tunnelling, L2F, PPTP, L2TP, IPSec, AH, ESP, transport mode, tunnel mode.