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Nexor
Nexor Limited is a privately held company based in Nottingham, providing product and services to safeguard government, defence and critical national infrastructure computer systems. It was originally known as X-Tel Services Limited. History Nexor Limited was founded in 1989 as X-Tel Services Limited out of the University of Nottingham and UCL, following research into X.400 and X.500 systems for the ISODE project. In 1992 Stephen Kingan joined the business as CEO. In 1993 X-Tel Services Limited was renamed Nexor Limited. In 1996 3i invested in the business to launch Nexor Inc. In 2004 Kingan and Nigel Fasey acquired the business. In 2008 Colin Robbins was appointed to the board as CTO. In 2012 Kingan acquired 100% ownership of Nexor. October 2013, the company moved headquarters from Nottingham Science Park to the NG2 Business Park. Nexor customers include NATO, European Defence Agency, UK MoD, US DOD, Canadian DND, Foreign and Commonwealth Office and Met Office. Nex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nexor Logo
Nexor Limited is a privately held company based in Nottingham, providing product and services to safeguard government, defence and critical national infrastructure computer systems. It was originally known as X-Tel Services Limited. History Nexor Limited was founded in 1989 as X-Tel Services Limited out of the University of Nottingham and UCL, following research into X.400 and X.500 systems for the ISODE project. In 1992 Stephen Kingan joined the business as CEO. In 1993 X-Tel Services Limited was renamed Nexor Limited. In 1996 3i invested in the business to launch Nexor Inc. In 2004 Kingan and Nigel Fasey acquired the business. In 2008 Colin Robbins was appointed to the board as CTO. In 2012 Kingan acquired 100% ownership of Nexor. October 2013, the company moved headquarters from Nottingham Science Park to the NG2 Business Park. Nexor customers include NATO, European Defence Agency, UK MoD, US DOD, Canadian DND, Foreign and Commonwealth Office and Met Office. Nex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISO Development Environment
The ISODE software (pronounced eye-soo-dee-eee), more formally the ''ISO Development Environment'', was an implementation of the OSI upper layer protocols, from transport layer to application layer, which was used in the Internet research community to experiment with implementation and deployment of OSI during the late 1980s and early 1990s. The ISODE software was initially a public domain / open source implementation, led by Marshall Rose. Following version 6.0, Marshall handed the lead over to Colin Robbins and Julian Onions, who coordinated the 7.0 and 8.0 releases. Version 8.0 was the final public domain release, made on June 19, 1992. The Open Source version is still available, even if only for historic interest. The software was ported to a wide set of Unix and Linux variants. ISODE Stack The ISODE stack was an implementation of layers 3 to 6 of the OSI model. While the ISODE implementation could be configured to use one of several X.25 (CONS) or connectionless lower ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intellect (trade Association)
The cyber security (or information assurance) community in the United Kingdom is diverse, with many stakeholders groups contributing to support the '' UK Cyber Security Strategy''. The following is a list of some of these stakeholders. Government According to a parliamentary committee the UK government is not doing enough to protect the nation against cyber attack. Cyber Aware Cyber Aware is a cross-government awareness and behaviour campaign which provides advice on the simple measures individuals can take to protect themselves from cyber crime. Department for Digital, Culture, Media and Sport The Department for Digital, Culture, Media and Sport is one of the lead government departments on cyber security policy, responsible for supporting & promoting the UK cyber security sector, promoting cyber security research and innovation, and working with the National Cyber Security Centre to help ensure all UK organisations are secure online and resilient to cyber threats. Get S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colin Robbins (software Engineer)
Colin Robbins (born 1964) is a network protocol and software engineer credited for research work in distributed directory systems and a co-inventor of LDAP. Educated at Alleyn's School, he holds a BSc, Computer Science & Electronic Engineering, with first class honours, from University College London. Robbins developed the Quipu directory part of the ISO Development Environment (ISODE) while a research assistant at UCL working for Peter Kirstein, he became custodian of ISODE from Marshall Rose in 1991. Quipu was used to prototype DIXIE and DASED, which merged to invent LDAP of which Robbins wrote the ''String Representation of Standard Attribute Syntaxes'' element defined in RFCs 1448 and 1778 published by the IETF. Robbins wrote part 3 of Steve Kille's book ''Implementing X.400 and X.500: the PP and QUIPU Systems''. Robbins was the Technical Architect and Vice-Chairman of the Europe-wide Nameflow Paradise directory, the world’s largest distributed deployment of X.5 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robots Exclusion Standard
The robots exclusion standard, also known as the robots exclusion protocol or simply robots.txt, is a standard used by websites to indicate to visiting web crawlers and other web robots which portions of the site they are allowed to visit. This relies on voluntary compliance. Not all robots comply with the standard; email harvesters, spambots, malware and robots that scan for security vulnerabilities may even start with the portions of the website where they have been told to stay out. The "robots.txt" file can be used in conjunction with sitemaps, another robot inclusion standard for websites. History The standard was proposed by Martijn Koster, when working for Nexor in February 1994 on the ''www-talk'' mailing list, the main communication channel for WWW-related activities at the time. Charles Stross claims to have provoked Koster to suggest robots.txt, after he wrote a badly-behaved web crawler that inadvertently caused a denial-of-service attack on Koster's server. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Department Of Defense
The United States Department of Defense (DoD, USDOD or DOD) is an executive branch department of the federal government charged with coordinating and supervising all agencies and functions of the government directly related to national security and the United States Armed Forces. The DoD is the largest employer in the world, with over 1.34 million active-duty service members (soldiers, marines, sailors, airmen, and guardians) as of June 2022. The DoD also maintains over 778,000 National Guard and reservists, and over 747,000 civilians bringing the total to over 2.87 million employees. Headquartered at the Pentagon in Arlington, Virginia, just outside Washington, D.C., the DoD's stated mission is to provide "the military forces needed to deter war and ensure our nation's security". The Department of Defense is headed by the secretary of defense, a cabinet-level head who reports directly to the president of the United States. Beneath the Department of Defense are t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Software Development
Software development is the process of conceiving, specifying, designing, programming, documenting, testing, and bug fixing involved in creating and maintaining applications, frameworks, or other software components. Software development involves writing and maintaining the source code, but in a broader sense, it includes all processes from the conception of the desired software through to the final manifestation of the software, typically in a planned and structured process. Software development also includes research, new development, prototyping, modification, reuse, re-engineering, maintenance, or any other activities that result in software products. Methodologies One system development methodology is not necessarily suitable for use by all projects. Each of the available methodologies are best suited to specific kinds of projects, based on various technical, organizational, project, and team considerations. Software development activities Identification of need The s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TickIT
TickIT is a certification program for companies in the software development and computer industries, supported primarily by the United Kingdom and Swedish industries through UKAS and SWEDAC respectively. Its general objective is to improve software quality. History In the 1980s, the UK government's CCTA organisation promoted the use of IT standards in the UK public sector, with work on BS5750 (Quality Management) leading to the publishing of the Quality Management Library and the inception of the TickIT assessment scheme with DTI, MoD and participation of software development companies. TickITplus The TickIT scheme has been updated to become TickITplus, a new websitTickIT''plus''is now available. TickITplus adds a new dimension to the existing TickIT Scheme combining industry best practice with International IT standards. It provides ISO 9001:2008 accredited certification with a Capability Grading for all sizes and types of IT organisations. It cross-references ISO/IEC 155 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microsoft Exchange Client
Microsoft Exchange Server is a mail server and calendaring server developed by Microsoft. It runs exclusively on Windows Server operating systems. The first version was called Exchange Server 4.0, to position it as the successor to the related Microsoft Mail 3.5. Exchange initially used the X.400 directory service but switched to Active Directory later. Until version 5.0, it came bundled with an email client called Microsoft Exchange Client. This was discontinued in favor of Microsoft Outlook. Exchange Server primarily uses a proprietary protocol called MAPI to talk to email clients, but subsequently added support for POP3, IMAP, and EAS. The standard SMTP protocol is used to communicate to other Internet mail servers. Exchange Server is licensed both as on-premises software and software as a service (SaaS). In the on-premises form, customers purchase client access licenses (CALs); as SaaS, Microsoft charges a monthly service fee instead. History Microsoft had sold a nu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Request For Comments
A Request for Comments (RFC) is a publication in a series from the principal technical development and standards-setting bodies for the Internet, most prominently the Internet Engineering Task Force (IETF). An RFC is authored by individuals or groups of engineers and computer scientists in the form of a memorandum describing methods, behaviors, research, or innovations applicable to the working of the Internet and Internet-connected systems. It is submitted either for peer review or to convey new concepts, information, or, occasionally, engineering humor. The IETF adopts some of the proposals published as RFCs as Internet Standards. However, many RFCs are informational or experimental in nature and are not standards. The RFC system was invented by Steve Crocker in 1969 to help record unofficial notes on the development of ARPANET. RFCs have since become official documents of Internet specifications, communications protocols, procedures, and events. According to Crocker, the doc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Internet Engineering Task Force
The Internet Engineering Task Force (IETF) is a standards organization for the Internet and is responsible for the technical standards that make up the Internet protocol suite (TCP/IP). It has no formal membership roster or requirements and all its participants are volunteers. Their work is usually funded by employers or other sponsors. The IETF was initially supported by the federal government of the United States but since 1993 has operated under the auspices of the Internet Society, an international non-profit organization. Organization The IETF is organized into a large number of working groups and birds of a feather informal discussion groups, each dealing with a specific topic. The IETF operates in a bottom-up task creation mode, largely driven by these working groups. Each working group has an appointed chairperson (or sometimes several co-chairs); a charter that describes its focus; and what it is expected to produce, and when. It is open to all who want to partic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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