Educators providing Courses in Sheffield

A Health & Safety Executive Approved course that complies with First Aid Regulations 1981. This is a refresher course for those that have previously attended and passed the First Aid At Work Course and now need to renew their certification. Who Should Attend? People that hold a valid First Aid At Work Certificate Course Content Health & Safety Using a First Aid Kit Incident Management Resuscitation / CPR - Adult, Child, Baby AED Familiarisation Recovery Position Choking - Adult, Child, Baby Burns & Scalds Poisoning including Anaphylaxis Epilepsy Shock Bleeding & Nose Bleeds Asthma Head Injuries Fractures, Sprains & Strains Many Other Specific Conditions Course Duration: Two Days Assessment / Certification Independent qualified assessors carry out the assessments. Each delegate that passes will receive a Certificate valid for Three years. Please note that training can take place upto 3 months in advance of the Certificate expiry date. The new Certificate will be dated from the expiry date of the old Certificate.

Recent changes to Forestry Commission policy recommend those who work in the Forestry industry attend training which includes additional topics relevant to the risks and nature or their work. The Forestry Commission recommend topics including: Crush Injuries Catastrophic bleeding including chainsaw including chainsaw injuries and gun shot wounds Hypothermia / Exposure Suspension injuries Lyme's Disease Lightning & High Voltage injuries Casualty evacuation planning These are in addition to the normal Emergency First Aid criteria. Who Should Attend? This course is ideal for those who work or intend to work in a forestry, agricultural or remote environment, such as tree surgeons and farmers. Emergency First Aid Course Content Health & Safety First Aid Kit Resuscitation/CPR AED Familiarisation Recovery Position Choking - Adult, Child, Baby Burns & Scalds Poisoning including Anaphylaxis Epilepsy Shock Bleeding including Catastrophic bleeding Asthma Head Injuries Breaks, Sprains & Strains Specific Conditions (Heart Attack) Assessment / Certification Independent qualified assessors carry out the assessments. Each delegate that passes will receive a Certificate valid for Three years. Please note those holding a valid Certificate, training can take place up to 3 months in advance of the expiry date & the new Certificate will be dated from the expiry date of the old Certificate.

A Health & Safety Executive Approved course that complies with First Aid Regulations 1981 and includes AED familiarisation. This Course is ideal for smaller work places for persons in a lower risk work environment. Who Should Attend? Any member of an organisation who would find themselves in charge, or who has been appointed to take charge of first aid during a first aid emergency in the absence of a qualified First Aider. Course Content • Health & Safety • AED Familiarisation • First Aid Kit • Resuscitation/CPR - Adult, Child, Baby • Recovery Position • Choking - Adult, Child, Baby • Burns & Scalds • Poisoning including Anaphylaxis • Epilepsy • Shock • Bleeding & Nose Bleeds • Asthma • Head Injuries • Breaks, Sprains & Strains • Specific Conditions (Heart Attack) Assessment / Certification Independent qualified assessors carry out the assessments. Each delegate that passes will receive a Certificate valid for Three years. Please note that training can take place upto 3 months in advance of the Certificate expiry date. The new Certificate will be dated from the expiry date of the old Certificate.

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.

Linux virtualization and HA training course description The LPIC-3 certification is the culmination of LPI's multi -level professional certification program. LPIC-3 is designed for the enterprise-level Linux professional and represents the highest level of professional, distribution neutral Linux certification within the industry. LPIC-3 304 covers administering Linux enterprise-wide with an emphasis on virtualization and high availability. At SNT we have enhanced the contents of the course by covering containers. What will you learn Manage Virtual Machines. Manage containers. Manage HA clusters. Manage HA cluster storage. Linux virtualization and HA training course details Who will benefit: Linux professionals working with virtualization and/or High availability. Prerequisites: Linux network administration 2 (LPIC-2) Duration 5 days Linux virtualization and HA training course contents VIRTUALIZATION Virtualization concepts and theory Terminology, Pros and Cons of virtualization, variations of Virtual Machine monitors, migration of physical to VMs, migration of VMs between host systems, cloud computing. Xen Xen architecture, networking and storage, Xen configuration, Xen utilities, troubleshooting Xen installations, XAPI, XenStore, Xen Boot Parameters, the xm utility. KVM KVM architecture, networking and storage, KVM configuration, KVM utilities, troubleshooting KVM installations. Other virtualization solutions OpenVZ and LXC, other virtualization technologies, virtualization provisioning tools. Libvirt and Related Tools libvirt architecture, networking and storage, basic technical knowledge of libvirt and virsh, oVirt. Cloud Management Tools Basic feature knowledge of OpenStack and CloudStack, awareness of Eucalyptus and OpenNebula. Containers Containers versus VMs, Docker, Kubernetes. Load balanced clusters of LVS/IPVS, VRRP, configuration of keepalived, configuration of ldirectord, backend server network configuration. HAProxy, configuration of HAProxy. Failover clusters Pacemaker architecture and components (CIB, CRMd, PEngine, LRMd, DC, STONITHd), Pacemaker cluster configuration, Resource classes (OCF, LSB, Systemd, Upstart, Service, STONITH, Nagios), Resource rules and constraints (location, order, colocation), Advanced resource features (templates, groups, clone resources, multi-state resources), Pacemaker management using pcs, Pacemaker management using crmsh, configuration and management of corosync in conjunction with Pacemaker, other cluster engines (OpenAIS, Heartbeat, CMAN). HIGH AVAILABILITY CLUSTER STORAGE DRBD/cLVM DRBD resources, states and replication modes, configuration of DRBD resources, networking, disks and devices, configuration of DRBD automatic recovery and error handling, management of DRBD using drbdadm. drbdsetup and drbdmeta, Integration of DRBD with Pacemaker, cLVM, integration of cLVM with Pacemaker. Clustered File Systems Principles of cluster file systems. Create, maintain and troubleshoot GFS2 file systems in a cluster, create, maintain and troubleshoot OCFS2 file systems in a cluster, Integration of GFS2 and OCFS2 with Pacemaker, the O2CB cluster stack, other commonly used clustered file systems.

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.

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.

BGP training course description A detailed study of BGP, from the basics of how it works through to advanced issues such as route reflectors, policy, filtering, route selection and routing registries. The course culminates with a study of an industrial strength BGP template illustrating important issues such as bogon filtering. Practical hands on with routers follow the major sessions to reinforce the theory. A multiple choice exam, leading to the LAIT III certification, is available after the course. The exam consists of 60 questions and lasts 2 hours. What will you learn Connect enterprises to the Internet, and ISPs to each other. Describe how BGP works. List, describe and configure the main BGP attributes. Implement and troubleshoot BGP. Work with route aggregation and calculate CIDR prefixes in seconds. Influence traffic paths with BGP. BGP training course details Who will benefit: Anyone who will be working with BGP. Prerequisites: TCP/IP Foundation for engineers Definitive IP routing for engineers. Duration 5 days BGP training course contents Basic BGP IGPs, EGPs, What's BGP? BGP RIB, in/out process, tables peers, adding routes. Hands on Simple configuration and troubleshooting. The Internet and peering ASs, AS numbers, Internet structure, ISP types, ISP network design, IXs, peering vs. transit, public/ private peering, bi/multi-lateral peering. Hands on AS information gathering. How BGP works Incremental updates, Path vector protocols, BGP protocol stack, the BGP header, message types, NLRI, withdrawn routes, route refresh, route dampening. Hands on More troubleshooting, packet analysis. MBGP and IPv6 Multiprotocol routing, AFI, SAFI, MBGP and multicasts, IPv6, MPLS VPNs. Hands on IPv6 BGPv4 aggregation CIDR, benefits, techniques, shortcuts, configuring BGP aggregation, leaking routes. Hands on Reducing routing table size. BGP path selection BGP attributes, attribute types, route selection order, Local preference, AS prepend, MEDs. Hands on Influencing traffic with BGP. BGP routing policies What is policy? Examples, route filtering, AS filtering, REs, applying preference selectively, peer groups. Hands on Sophisticated policies. RIPE and routing registries RIRs, Allocations, assignments, PI vs. PA. Objects, RPSL, routing registry, Hands on The RIPE database. Automating BGP configuration Automation tools, whois, IRRToolSet, Bogon lists, tracking bogon lists, HTTP, Peering, routing registries, DNS. Communities What is a community? Community names, communities for: peer types and geography. RFC 1998, default communities. Hands on Setting local preference on other routers. Route servers What are route servers? LINX route servers, route server policy control, What are route collectors, Looking glasses. Hands on Setting up and working with a route server. Peer relationships IBGP, EBGP, next hop self, advertising routes into/out of BGP, synchronisation. Hands on IBGP, troubleshooting a large BGP network. Route reflectors and confederations Full mesh IBGP, Route reflectors, RR configuration and design, confederations, migration issues. Hands on RR configuration. BGP architectures Stub vs. transit AS, when to use BGP, multihoming strategies and issues, default routes. Multihop EBGP, load balancing. Hands on Multihoming. BGP security RFC 7454, security steps, BGP TTL security, filters, RPKI, ROAs, rsync, rrdp, validators. A secure BGP template. Hands on RPKI prefix validation.

LINX 3 training course description A detailed study of BGP, from the basics of how it works through to advanced issues such as route reflectors, policy, filtering, route selection and routing registries. The course culminates with a study of an industrial strength BGP template illustrating important issues such as bogon filtering. Practical hands on with routers follow the major sessions to reinforce the theory. A multiple choice exam, leading to the LAIT III certification, is available after the course. The exam consists of 60 questions and lasts 2 hours. What will you learn Connect enterprises to the Internet, and ISPs to each other. Describe how BGP works. List, describe and configure the main BGP attributes. Implement and troubleshoot BGP. Work with route aggregation and calculate CIDR prefixes in seconds. Influence traffic paths with BGP. LINX 3 training course details Who will benefit: Network engineers. Prerequisites: LAIT I and II OR CCNP and take LAIT I and LAIT II exams whilst on this course. Duration 5 days LINX 3 training course contents Basic BGP IGPs, EGPs, What's BGP? BGP RIB, in/out process, tables peers, adding routes. Hands on Simple configuration and troubleshooting. The Internet and peering ASs, AS numbers, Internet structure, ISP types, ISP network design, IXs, peering vs. transit, public/ private peering, bi/multi-lateral peering. Hands on AS information gathering. How BGP works Incremental updates, Path vector protocols, BGP protocol stack, the BGP header, message types, NLRI, withdrawn routes, route refresh, route dampening. Hands on More troubleshooting, packet analysis. MBGP and IPv6 Multiprotocol routing, AFI, SAFI, MBGP and multicasts, IPv6, MPLS VPNs. Hands on IPv6 BGPv4 aggregation CIDR, benefits, techniques, shortcuts, configuring BGP aggregation, leaking routes. Hands on Reducing routing table size. BGP path selection BGP attributes, attribute types, route selection order, Local preference, AS prepend, MEDs. Hands on Influencing traffic with BGP. BGP routing policies What is policy? Examples, route filtering, AS filtering, REs, applying preference selectively, peer groups. Hands on Sophisticated policies. RIPE and routing registries RIRs, Allocations, assignments, PI vs. PA. Objects, RPSL, routing registry, Hands on The RIPE database. Automating BGP configuration Automation tools, whois, IRRToolSet, Bogon lists, tracking bogon lists, HTTP, Peering, routing registries, DNS. Communities What is a community? Community names, communities for: peer types and geography. RFC 1998, default communities. Hands on Setting local preference on other routers. Route servers What are route servers? LINX route servers, route server policy control, What are route collectors, Looking glasses. Hands on Setting up and working with a route server. Peer relationships IBGP, EBGP, next hop self, advertising routes into/out of BGP, synchronisation. Hands on IBGP, troubleshooting a large BGP network. Route reflectors and confederations Full mesh IBGP, Route reflectors, RR configuration and design, confederations, migration issues. Hands on RR configuration. BGP architectures Stub vs. transit AS, when to use BGP, multihoming strategies and issues, default routes. Multihop EBGP, load balancing. Hands on Multihoming. BGP security RFC 7454, security steps, BGP TTL security, filters, RPKI, ROAs, rsync, rrdp, validators. A secure BGP template. Hands on RPKI prefix validation.

LPIC-1 training course description This five day hands on course provides a comprehensive coverage of core Linux administration tasks. The course covers generic Linux and is available for any Linux distribution required. It closely follows the LPIC curriculum allowing delegates to achieve the relevant certification if required. What will you learn Administer & configure Linux systems. Maintain Linux by handling disk space and taking regular backups. Manage software packages. Perform basic troubleshooting. Maintain a secure Linux system. Describe the organisation and implementation of the filesystem. LPIC-1 training course details Who will benefit: System administrators. Network administrators. Prerequisites: Linux fundamentals (LPI 010) Duration 5 days LPIC-1 training course contents Part I Exam 101 Exploring Linux Command-Line Tools Using a Shell, Shell Configuration, Environment Variables, Getting Help, Streams, Redirection and Pipes, Processing Text Using Filters, Manipulating files, Regular Expressions, grep,sed. Managing Software Package Concepts, Comparison of package formats, RPM, rpm Commands, Yum, Debian Packages, dpkg, apt-cache, apt-get, dselect, aptitude, Converting Between Package Formats, Dependencies and Conflicts, Startup Script Problems, Shared Libraries, Library Management, Managing Processes, the Kernel: The First Process, Process Lists, Foreground & Background Processes, Process Priorities, Killing Processes. Configuring Hardware Configuring Firmware and Hardware, IRQs, I/O Addresses, DMA Addresses, Boot Disks, Coldplug and Hotplug Devices, Configuring Expansion Cards and PCI Cards, Kernel Modules, USB Devices, Linux USB Drivers, Configuring Hard Disks, Partitioning Systems, LVM, Common Layouts, Creating Partitions and Filesystems, Maintaining Filesystem Health, Tuning, Journals, Checking Filesystems, Monitoring Disk Use, Mounting and Unmounting Filesystems. Managing Files File Management Commands, File Naming and Wildcards, File Archiving, Links, Directory Commands, File Ownership and Group, File access control, Permissions, chmod, Defaults, File Attributes, Disk Quotas, Enabling and setting Quotas, Locating Files, The FHS. Booting Linux and Editing Files Installing Boot Loaders, GRUB Legacy, GRUB 2, Alternative Boot Loaders, the Boot Process, Boot Messages, Runlevels and the Initialization Process, Runlevel Functions, Runlevel Services, Alternative Boot Systems , Upstart, system. Part II Exam 102 265 Securing the X Window System Localization, Configuring Basic X Features, X Server Options, Methods of Configuring X, X Display Information, X Fonts, The X GUI Login System, XDMCP Server, Using X for Remote Access, Screen Display Settings, Setting Your Time Zone, Your Locale, Configuring Printing, Conceptualizing the Linux Printing Architecture, Understanding PostScript and Ghostscript, Running a Printing System, Configuring CUPS, Monitoring and Controlling the Print Queue. Administering the System Managing Users and Groups, Tuning User and System Environments, Using System Log Files, Understanding syslogd , Setting Logging Options, Manually Logging Data, Rotating Log Files, Reviewing Log File Contents, Maintaining the System Time, Linux Time Concepts, Manually Setting the Time, Using NTP, Running Jobs in the Future, Understanding the Role of cron, Creating System cron Jobs, Creating User cron Jobs, Using anacron, Using at. Configuring Basic Networking TCP/IP, Network Hardware, Network Addresses, Hostnames, Network Ports, Configuring Linux for a Local Network, Configuring with DHCP, Static IP Address, Configuring Routing, Using GUI Configuration Tools, ifup and ifdown, Diagnosing Network Connections, Testing Connectivity, Tracing a Route, Checking Network Status , Examining Network Traffic, Additional Tools. Writing Scripts, Configuring Email, and Using Databases The Shell Environment, Aliases, Shell Configuration Files, Writing Scripts, Commands, Variables, Conditional Expressions, Loops, Functions, Managing Email, Choosing Email Software, Securing Your Email Server, Managing Data with SQL, Picking a SQL Package, Understanding SQL Basics, Using MySQL Securing Your System Administering Network Security, Super Server Restrictions, Disabling Unused Servers, Administering Local Security, Securing Passwords, Limiting root Access, Setting Login, Process, SUID/SGID Files, Configuring SSH, Using GPG, Generating, Importing and Revoking Keys, Encrypting and Decrypting Data, Signing Messages and Verifying Signatures.