340 Computing & IT courses in Sheffield

BGP training course description A study of BGP for non engineers working in the Internet. The course starts with a review of the basics of routers and routing tables and then moves on to a simple overview of how BPG works with a focus on BGP metrics influencing the route traffic takes through the Internet. Hands on with routers follow the major sessions to reinforce the theory. Note these hands on sessions are more demonstrations by the trainer but some can be followed along and done by delegates (e.g. looking at Internet routing tables.) What will you learn Explain how routing tables influence Internet traffic. Describe how BGP works. Explain the methods BGP can use to influence Internet traffic. Use traceroute, peeringdb, route collectors and looking glasses to analyse traffic flows. Explain the difference between bi lateral and multilateral peering using a route server. BGP training course details Who will benefit: Non technical staff wishing to know more about BGP. Prerequisites: None. Duration 1 day BGP training course contents Networks, routers and routing tables What is a network, what is a router, routing tables, static routes, routing protocols. When an ISP uses static routes and when they use BGP. IP addresses, subnet masks, groups of IP addresses. IPv6. Hands on: Showing a full routing table. Seeing traceroute being used. Basic BGP What's BGP? BGP versus other routing protocols, ASs, AS numbers. RIPE database, peeringdb. Hands on: Finding AS numbers. Showing simple BGP configuration and routing tables in an EVENG example. How BGP works Simple walk through of BGP incremental updates and how routes change when links go down. Hands on: Showing packets and route changes when a link goes down/comes up. BGP path selection Transit, peering, routing policy and route filtering. Longest matching rule in routing tables, route selection order, Local preference, AS prepend, MEDs. Hands on: Seeing BGP influencing traffic. Looking at peering policies in RIPE and peeringdb. Route servers What are route servers? LINX route servers, route server policy control and communities, What are route collectors, Looking glasses. Hands on: Seeing the LINX route server details in peeringdb, using a looking glass.

Peering demystified training course description A concise overview course covering The Internet and peering. Particular emphasis is placed on the structure of the Internet, how IXs benefit the Internet, IX architectures, peering and the technical buzzwords behind the IX services. What will you learn Describe the structure of the Internet Explain the role of RIPE, ARIN and IXs in the Internet Explain how IXs connect ISPs and the benefits of using IXs. Describe peering from a technical perspective including the role of BGP and AS's. Peering demystified training course details Who will benefit: Non technical staff working for Internet companies. Prerequisites: None. Duration 1 day Peering demystified training course contents IP and routers IP as glue. What is a router? How routers join networks, benefits and disadvantages of routers, default gateways, routing tables, routing protocols. Addressing IP address format, rules of IP addressing, where to get IP addresses. Subnetting and groups of IP addresses. The Internet What is the Internet? The big picture, IP basics, registering IP addresses, DNS and registering domain names, whois, The IAB, IANA, ICANN, RIPE and other Internet organisations. ISPs Top ISPs, Tier 1, Tier 2 and Tier 3 ISPs, backbone providers, circuit providers, content providers, virtual ISPs, the internal network of ISPs. Customer connections to ISPs (DSL, Leased lines, MPLS…) ISP to ISP connections: Peering points Public peering versus private peering, NAPs, Internet Exchanges, Metropolitan Area Exchanges, LINX, other major peering points, the geography of the Internet. BGP and ASNs. How to peer. IRRs. IX architecture Ethernet switching.

IP demystified training course description A concise overview course covering TCP/IP with particular emphasis on the addressing and security issues of TCP/IP networks. What will you learn Describe TCP/IP. List the rules of IP addressing. Recognise the impact of the addressing rules on adds/moves and changes. Recognise the use of subnet masks. Explain how firewalls work. Recognise the role of DNS. IP demystified training course details Who will benefit: Anyone, although the course is particularly aimed at non-technical personnel needing some knowledge of TCP/IP. Prerequisites: Network fundamentals Duration 1 day IP demystified training course contents What is TCP/IP? What is IP? What is TCP? What is TCP/IP? Internetworking, protocols, services. The Internet, RFCs, comparison with OSI 7 layer model. Basic configuration IP addresses, subnet masks, default gateways, DHCP, ping. Addressing IP address format, rules of IP addressing, where to get IP addresses, private addresses, subnet masks, How subnet masks are used to determine network numbers. Ranges of addresses. NAT Private versus public IP addresses, NAT, NAPT. IPv6 What is IPv6, IPv6 usage, Why IPv6, 128bit IPv6 addresses, IPv6 migration, dual stack, tunnelling. Routing What is a router? how routers join networks, benefits and disadvantages of routers, default gateways, routing tables, routing protocols. Traceroute. Firewalls What is a firewall, firewall architectures, filtering, DMZ, Proxy servers, stateful packet inspection. DNS How hostnames are converted to IP addresses.

WANs training course description A concise overview course covering Wide Area Networks with particular emphasis on the WAN options available including the use of the Internet. What will you learn Choose and evaluate WAN technologies. Recognise the role of service providers. Describe the benefits of VPNs. Describe how the Internet can be used as a WAN. Describe the equipment needed to connect LANS to WANS. List the speeds of various WAN technologies. WANs training course details Who will benefit: Anyone, although the course is particularly aimed at non-technical personnel needing some knowledge of WANS. Prerequisites: Network fundamentals Duration 1 day WANs training course contents WANS WAN architecture, Common WAN terms, Core vs access, service providers, relationship with 7 layer model, WAN equipment, how to choose a WAN. Layer 1 Copper, phone lines, fibre, coaxial, satellite, wireless. Cabling to the building, CPE cabling, interfaces. Layer 2 Dial up vs. Dedicated vs. packet switched networks and when to use them. Packet switching vs. circuit switching. Point to point and point to multipoint. Dialup access technologies Modems, ISDN, BRI, PRI. Access with dedicated lines XDSL, leased lines. WAN services X.25, SMDS, Frame Relay, CIR, ATM, Internet, MANS, dark fibre and other services. Case study: Selecting WAN technologies. Service provider technologies MPLS, SDH, WDM, DWDM. Routers Network addressing, default gateways, routing tables, routing protocols. Internet architecture Service providers, ISPs, private peering, public peering, core WANs in the Internet. VPNs Private networks, public networks, What are VPNs?, benefits of VPNs, tunnelling, encryption, IPSec. Case study: Specifying WAN connectivity.

LAN training course description A concise overview course covering Local Area Networks with particular emphasis on the use of Ethernet and Wireless LANS. As well as explaining buzzwords we cover how the technology works at a simple level. After defining LANs the course moves onto Ethernet and switching also covering VLANs. WiFi is then covered, with coverage of 802.11 standards and frequencies along with integrating WiFi with Ethernet. The course then covers routers and their role in connecting networks and the course finishes with a comparison of Ethernet vs WiFi and when to use them. What will you learn Describe how Ethernet works (in simple terms) and when to use Ethernet. Explain the difference between a switch and a router. Describe how WiFi works (in simple terms). Describe the role of Access points. Evaluate wireless technologies and when to use them. List the speeds of various LAN technologies. LAN training course details Who will benefit: Sales staff, managers and other non technical staff. Prerequisites: None. Duration 1 day LAN training course contents LANS What is a LAN? LAN standards, LAN choices, choosing the media, copper, UTP, cat5e, fibre, RF, bandwidth speeds, link aggregation, Full/half duplex. Ethernet What is Ethernet? 802.3, parts of Ethernet, Ethernet evolution, MAC addresses, frames, broadcasts. Ethernet switches What are switches, switches versus hubs, how switches work, ways to configure switches, Loops, STP. VLANs What are VLANs? Why have VLANs, impact of VLANs, Tagging (aka trunking), 802.1Q Wireless LANS Type of wireless LAN, RF frequencies, 2.4GHz, 5GHz, others, interference, standards, 802.11 and variants, CSMA/CA. Wireless LANS NICs, Access points, integration with Ethernet, multiple access points, mesh networks, WiFi security. Interconnecting LANs Routers, connecting networks, interconnecting VLANs, IP addressing, Layer 3 switches. Summary WiFi vs Ethernet.

VoIP and IP Telephony training course description A concise overview course for management covering voice communications using IP networks. The course focuses on how VoIP works at a simplified level enabling delegates to recognise the key decisions to be made when implementing VoIP. What will you learn Describe the key buzzwords used in the VoIP arena. Explain how VoIP and IPT work (at a simplified level). Describe the issues of providing a converged architecture. Recognise the key decisions to be made when implementing VoIP VoIP and IP Telephony training course details Who will benefit: Anyone, although the course is particularly aimed at non-technical personnel needing some knowledge of VoIP. Prerequisites: Network fundamentals Duration 1 day VoIP and IP Telephony training course contents Introduction What is VoIP, brief review of IP, brief review of telephones, voice and signalling. VoIP issues Bandwidth, Delay, Jitter. Voice coding and compression, packetising voice, comparison of techniques, MOS.IP performance and QoS. The need for QoS, prioritising voice. Architectures Hard phones, soft phones, video phones, desktop, backbone, gateway, integrating analog phones and PCs, carriers, Softswitches. VoIP protocol stack RTP, RTCP. H.323 vs SIP, other signalling protocols. H.323 Architecture, Call setup, Gatekeepers. SIP Comparison with H.323, SIP proxy, proxy servers, redirect servers, location servers. MGCP and MegaCo Carrier networks, PSTN breakout, SS7 gateways, MGCP, Megaco. IP PBXs Integrating IP into 'normal' PBXs, IP PBXs, Asterisk. UM, other telephony applications.

Network automation training course description This course concentrates on the technical side of tools and languages for network DevOps rather than the soft skills. These tools include Python, Ansible, Git and NAPALM By the end of the course delegates should be able to recognise the tools that they can use to automate their networks and be able to use the knowledge gained to feel confident approaching network automation. What will you learn Describe network DevOps. Choose network automation tools. Explain the role of various network automation technologies including: Python Ansible Git NAPALM Network automation training course details Who will benefit: Those wishing to learn about the tools of network automation. Prerequisites: Introduction to data communications. Duration 1 day Network automation training course contents What is DevOps and network automation Programming and automating networks, networks and clouds, AWS, OpenStack, SDN, DevOps for network operations. Unit testing. Hype vs reality. Benefits and features. Network monitoring and troubleshooting Traditional methods, SNMP. Netflow and xflow. Traditional automation. Streaming telemetry. Event driven automation. gRPC, Protocol buffers. Configuration management Catch 22 and initial configuration. ZTP, POAP. Traditional automation. TFTP. Ansible vs the rest (chef, salt, puppet). Jinja2 and templating. How ansible works. Network programmability Programming languages. Linux, shell scripting. Python vs the rest. Off box vs on box automation. Python network libraries Sockets pysnmp, ncclient, paramiko, netmiko, pyez, NAPALM. APIs Proprietary APIs, CLI, NETCONF, RETCONF. YANG, XML, YAML, JSON. Other tools Git, GitHub, Jenkins, JIRA and others.

Securing Linux systems training course description This course teaches you everything you need to know to build a safe Linux environment. The first section handles cryptography and authentication with certificates, openssl, mod_ssl, DNSSEC and filesystem encryption. Then Host security and hardening is covered with intrusion detection, and also user management and authentication. Filesystem Access control is then covered. Finally network security is covered with network hardening, packet filtering and VPNs. What will you learn Secure Linux accounts. Secure Linux file systems. Secure Linux access through the network. Securing Linux systems training course details Who will benefit: Linux technical staff needing to secure their systems. Prerequisites: Linux system administration (LPIC-1) Duration 5 days Securing Linux systems training course contents Cryptography Certificates and Public Key Infrastructures X.509 certificates, lifecycle, fields and certificate extensions. Trust chains and PKI. openssl. Public and private keys. Certification authority. Manage server and client certificates. Revoke certificates and CAs. Encryption, signing and authentication SSL, TLS, protocol versions. Transport layer security threats, e.g. MITM. Apache HTTPD with mod_ssl for HTTPS service, including SNI and HSTS. HTTPD with mod_ssl to authenticate users using certificates. HTTPD with mod_ssl to provide OCSP stapling. Use OpenSSL for SSL/TLS client and server tests. Encrypted File Systems Block device and file system encryption. dm-crypt with LUKS to encrypt block devices. eCryptfs to encrypt file systems, including home directories and, PAM integration, plain dm-crypt and EncFS. DNS and cryptography DNSSEC and DANE. BIND as an authoritative name server serving DNSSEC secured zones. BIND as an recursive name server that performs DNSSEC validation, KSK, ZSK, Key Tag, Key generation, key storage, key management and key rollover, Maintenance and resigning of zones, Use DANE. TSIG. Host Security Host Hardening BIOS and boot loader (GRUB 2) security. Disable useless software and services, sysctl for security related kernel configuration, particularly ASLR, Exec-Shield and IP / ICMP configuration, Exec-Shield and IP / ICMP configuration, Limit resource usage. Work with chroot environments, Security advantages of virtualization. Host Intrusion Detection The Linux Audit system, chkrootkit, rkhunter, including updates, Linux Malware Detect, Automate host scans using cron, AIDE, including rule management, OpenSCAP. User Management and Authentication NSS and PAM, Enforce password policies. Lock accounts automatically after failed login attempts, SSSD, Configure NSS and PAM for use with SSSD, SSSD authentication against Active Directory, IPA, LDAP, Kerberos and local domains, Kerberos and local domains, Kerberos tickets. FreeIPA Installation and Samba Integration FreeIPA, architecture and components. Install and manage a FreeIPA server and domain, Active Directory replication and Kerberos cross-realm trusts, sudo, autofs, SSH and SELinux integration in FreeIPA. Access Control Discretionary Access Control File ownership and permissions, SUID, SGID. Access control lists, extended attributes and attribute classes. Mandatory Access Control TE, RBAC, MAC, DAC. SELinux, AppArmor and Smack. etwork File Systems NFSv4 security issues and improvements, NFSv4 server and clients, NFSv4 authentication mechanisms (LIPKEY, SPKM, Kerberos), NFSv4 pseudo file system, NFSv4 ACLs. CIFS clients, CIFS Unix Extensions, CIFS security modes (NTLM, Kerberos), mapping and handling of CIFS ACLs and SIDs in a Linux system. Network Security Network Hardening FreeRADIUS, nmap, scan methods. Wireshark, filters and statistics. Rogue router advertisements and DHCP messages. Network Intrusion Detection ntop, Cacti, bandwidth usage monitoring, Snort, rule management, OpenVAS, NASL. Packet Filtering Firewall architectures, DMZ, netfilter, iptables and ip6tables, standard modules, tests and targets. IPv4 and IPv6 packet filtering. Connection tracking, NAT. IP sets and netfilter rules, nftables and nft. ebtables. conntrackd Virtual Private Networks OpenVPN server and clients for both bridged and routed VPN networks. IPsec server and clients for routed VPN networks using IPsec-Tools / racoon. L2TP.

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.

Cyber security training course description This cyber security course focusses on the network side of security. Technologies rather than specific products are studied focussing around the protection of networks using firewalls and VPNs. What will you learn Describe: - Basic security attacks - RADIUS - SSL - VPNs Deploy firewalls and secure networks Explain how the various technologies involved in an IP VPN work. Describe and implement: - L2TP - IPsec - SSL - MPLS, L3, VPNs. Cyber security training course details Who will benefit: Anyone working in the security field. Prerequisites: TCP/IP foundation for engineers Duration 5 days Cyber security training course contents Security review Denial of service, DDOS, data manipulation, data theft, data destruction, security checklists, incident response. Security exploits IP spoofing, SYN attacks, hijacking, reflectors and amplification, keeping up to date with new threats. Hands on port scanning, use a 'hacking' tool. Client and Server security Windows, Linux, Log files, syslogd, accounts, data security. Hands on Server hardening. Firewall introduction What is a firewall? Firewall benefits, concepts. HAnds on launching various attacks on a target. Firewall types Packet filtering, SPI, Proxy, Personal. Software firewalls, hardware firewalls. Firewall products. Hands on Simple personal firewall configuration. Packet filtering firewalls Things to filter in the IP header, stateless vs. stateful filtering. ACLs. Advantages of packet filtering. Hands on Configuring packet filtering firewalls. Stateful packet filtering Stateful algorithms, packet-by-packet inspection, application content filtering, tracks, special handling (fragments, IP options), sessions with TCP and UDP. Firewall hacking detection: SYN attacks, SSL, SSH interception. Hands on SPI firewalls. Proxy firewalls Circuit level, application level, SOCKS. Proxy firewall plusses and minuses. Hands on Proxy firewalls. Firewall architectures Small office, enterprise, service provider, what is a DMZ? DMZ architectures, bastion hosts, multi DMZ. Virtual firewalls, transparent firewalls. Dual firewall design, high availability, load balancing, VRRP. Hands on Resilient firewall architecture. Testing firewalls Configuration checklist, testing procedure, monitoring firewalls, logging, syslog. Hands on Testing firewalls. Encryption Encryption keys, Encryption strengths, Secret key vs Public key, algorithms, systems, SSL, SSH, Public Key Infrastructures. Hands on Password cracking. Authentication Types of authentication, Securid, Biometrics, PGP, Digital certificates, X.509 v3, Certificate authorities, CRLs, RADIUS. Hands on Using certificates. VPN overview What is a VPN? What is an IP VPN? VPNs vs. Private Data Networks, Internet VPNs, Intranet VPNs, Remote access VPNs, Site to site VPNs, VPN benefits and disadvantages. VPN Tunnelling VPN components, VPN tunnels, tunnel sources, tunnel end points, tunnelling topologies, tunnelling protocols, which tunnelling protocol? Requirements of tunnels. L2TP Overview, components, how it works, security, packet authentication, L2TP/IPsec, L2TP/PPP, L2 vs L3 tunnelling. Hands on Implementing a L2TP tunnel. IPsec AH, HMAC, ESP, transport and tunnel modes, Security Association, encryption and authentication algorithms, manual vs automated key exchange, NAT and other issues. Hands on Implementing an IPsec VPN. SSL VPNs Layer 4 VPNs, advantages, disadvantages. SSL. TLS. TLS negotiation, TLS authentication. TLS and certificates. Hands on Implementing a SSL VPN. MPLS VPNs Introduction to MPLS, why use MPLS, Headers, architecture, label switching, LDP, MPLS VPNs, L2 versus L3 VPNs. Point to point versus multipoint MPLS VPNs. MBGP and VRFs and their use in MPLS VPNs. Hands on Implementing a MPLS L3 VPN. Penetration testing Hacking webservers, web applications, Wireless networks and mobile platforms. Concepts, threats, methodology. Hands on Hacking tools and countermeasures.