CSDN (Chinese Software Developer Network), a professional IT community in China, was founded in 1999, dedicated toChina SoftwareProvided by developersKnowledge dissemination, online learning, career development and other full life cycle services.
CSDN APP: developer exclusive mobile APP, providing the latestTechnical Information, develop knowledge, help developers learn and grow, and make technical exchanges easier.[1]
CSDN Blog: dedicated to creating a professional technical writing, sharing and exchange platform for developers, providing comprehensive information andKnowledge exchangeinteraction.[1]
CSDNTechnical Forum: Create an information platform for IT developers to share technical experience and discuss technical topics.[1]
CSDN resource download center: provide IT professionals with rich, comprehensive and professionaltechnical informationSharing, communication and download services.[1]
CSDN New Media Matrix
Covering CSDN information, AI technology baseBlockchainBasecamp, GitChat, GitChat Boutique Courses, Programmed Life, AI HeadlinesPythonBase campCSDN AcademyIt covers various professional and technical fields and provides IT developers and practitioners with information, learning, communication, interaction and sharing platforms.[1]
CSDN Academy
CSDN College is an online learning platform under CSDN, which gathers senior technical experts in various fields to provide high-quality online courses and technical live broadcasts for students.At the same time, taking advantage of the Internet, we carefully launched training courses on artificial intelligence, blockchain, Python full stack, Web full stack, big data, etc. to help students improve their professional skills.[1]
Areas covered: artificial intelligence, big data, blockchain, database, university courses, certification examination, system/network, game development, Web developmentMobile Development[1]
GitChat
As an IT fieldUGCContent paymentPlatform, GitChat has successfully created a high-qualityContent Community。By integrating the user's specialtyKnowledge transformationFor high-quality content, the platform provides learners with rich and professional learning options;At the same time, more content creators can output their knowledge sustainably through income incentive.[1]
College Club
CSDN College Club is an IT club initiated by CSDN, a professional IT community in China, and spontaneously joined by representatives of college students across the countryTechnical learningType organization.CSDN has thus built a bridge between the industry and the campus, providing services such as IT industry information, technology learning, expert exchange, technology competition, internship and employment for clubs[1]
Industry research results
China's Artificial Intelligence Industry Roadmap, AI Technology Talent Growth Roadmap[1]
The latest technology and industry roadmap are maintained, updated and opened dynamically.
CSDN Blockchain Developer Report[1]
Focus on blockchain technology scanning, public chain selection guide and industry application development practice
Survey Report on Chinese Developers[1]
It was first released in 2004 and regularly launched at the end of each year.The survey report, which continuously, comprehensively and deeply reflects the status of the Chinese developer community, the use status and development trend of various technologies, tools and products, is an important reference for a complete and accurate understanding of the Chinese developer market.
Tool empowerment
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AI community - online experimental platform
Platform positioning[1]
Provide a one-stop learning platform for AI enthusiasts from entry to skilled application to work[1]
Provide a virtual experimental environment, so that students can directly have the ability to complete the assigned work content in the company's real online environment after learning[1]
Comprehensively improve students' basic ability+coding ability+practical ability, and make up all the weak points in the follow-up work at one time[1]
Platform features[1]
One stop AI learning platform, providing common AI data sets, personal cloud storage, model training, and result export functions[1]
Web Shell full virtual production environment, real experience of the company's online actual production process, highly integrated learning and practice[1]
Multi environment fast switching, high configuration GPU, fast learning and practice AI courses[1]
Online answering consolidates AI basic ability, and online programming improves code writing ability[1]
Professional empowerment
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Human resources service: Kerui Fox
Focusing on the Internet and high-techhead-hunting company, provide employment seeking services (headhunting) for professionals, middle and senior talents, help enterprises find key talentsdevelopment strategy 。[1]
In October, it launched China's first magazine for IT professional developers《programmer》
1999
In December, the unique IT professional credit system forum was launched
Integral rule
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Points gained
S/N
Get points
Obtaining product number
remarks
one
Get downloaded points after uploading resources
Downloads * resource points
100 points, except for downloading your own resources
two
Upload 0 points of resources to obtain system reward points
Downloads * 1[10]
100 points, except for downloading your own resources
three
Resources for reporting violations are confirmed (suspended)
Reward whistleblower 20 points
Resources can only be reported once
four
Score the downloaded resources of others
Get 1 point
It can only be rated once, and cannot be scored if the resource is not downloaded
five
Comment on downloaded resources of others
Return resource points
You can only comment once. Resources that have not been downloaded are not allowed to comment. After the review, the points consumed by the download will be returned
six
The forum can exchange points for resource points
Available score: resource score=5:1
seven
Phone binding CSDN account
Reward 50 points
Phone binding in personal settings.
Deduct points
S/N
Deduct points
Deduct points
remarks
one
Download others' resources
Downloaders deduct points equal to resources
No points will be deducted for repeated downloads
two
Publishing violation resources are deleted
Deduct 50 points
For example, uploading invalid pictures and videos, inconsistent with the content range of this site, damaged, unable to open, with decompression codes, endangering national security, pornography, and toxic resources.
three
Those who intentionally upload advertising resources
Freeze account
Points declaration
1. Junior users can upload resources of up to 50M, and the size of resources that can be uploaded will increase by 10M for each upgrade
2.0 Sub users have upload permission, and can upload resources less than 50M
3. The publisher can delete the resource with 0 downloads within 5 days of uploading
4. If less than 5 people download the distributed resources 90 days later, the resources will be deleted, but the publisher will not deduct points
5. It is not allowed to upload MP3, novels and other content unrelated to technology. Otherwise, it will be deleted once found
6. When uploading files, please try to upload them as packaged as possibleDo not split and upload several megabytes of resources into n small files of several kilobytes. If found, they will be deleted
7. Once the resource is uploaded successfully, the uploader cannot edit the resource. If there is a problem, the uploader can delete the resource immediately and upload it again
8. After downloading the resource, please give a reasonable score and comment on the resource in a timely manner, so that more people can understand the resource and reflect the value of the resource. You can also receive+1 point for the resource consumed by the returned download
9. If you find illegal resources, you are welcome to report them. After our confirmation, the whistleblower can get 20 points（Suspend execution)
10. User's suggestions to download channelReasonable suggestionsIf it is adopted, you can get points within 100
Upload protocol
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Audit criteria
To ensure that users can use downloaded channel resources normally and conveniently, CSDN will review all resources uploaded by users.The following resources will not be approved.
(1) Resources include Chinese laws, regulations, rules, regulations and anylegal effectContent restricted or prohibited by,Including but not limited toThe following situations:
1> Oppose what is determined by the Constitutionbasic principleOf;
2> Endangering national security and leakingState secrets, subversionState power, undermining national unity;
5> Those who undermine the state's religious policy and promote heresy and feudal superstition;
6> Spread rumors and disturbSocial order, undermining social stability;
7> Spreading obscenity, pornography, gambling, violence, murder, terror or abetting crime;
8> Insult or slander others and infringe upon otherslegitimate rightOf;
9> IncitementIllegal assembly, forming associations, marching, demonstrating or gathering people to disturb public order;
10> Activities in the name of illegal non-governmental organizations;
11> It contains false, harmful, coercive, infringing on others' privacy, harassment, infringement, slander, vulgarity, indecency, or other morally objectionable content;
12> Including other contents restricted or prohibited by Chinese laws, regulations, rules, regulations and any legally effective norms.
(2) Resources include advertisementsJunk informationAnd so on.3. Resources cannot be displayed normally: resources will not be passed if there is a problem with the resources themselves, which makes normal browsing of users unable to be guaranteed.4. The resource contains other content that does not conform to the rules of the CSDN website.
Right prompt
Do not upload any resources that may involve infringement without authorization, unless you are the legal owner of the resources or the resources do not infringe any third partyLegal rights and interests。
1> The content on CSDN is completely uploaded by users, and CSDN does not edit or modify it in any way.CSDN users must not violate theCopyrightIncluding intellectual property rights and other rights.
1) Copying, modifying, adapting, translating, assembling, etc. of others' works in whole or in part without the consent of the copyright owner, and uploading and publishing relevant content to CSDN is not allowed when the copyright of others may be infringed.
2) CSDN users can, within a reasonable rangeAppropriate referencesIn the case of a published work by others, the name of the author and the title of the work shall be indicated, and the legitimate rights and interests of the copyright owner and other obligees shall not be infringed.
2> The user promises that all the resources uploaded comply withChinese laws and regulationsandNormative documentsAnd will not infringe the legitimate rights and interests of any third party.If the user violates the above guarantee, CSDN has the right to delete the relevant resource content, and can suspend or terminate the service provided to the user.
3> If the content uploaded by CSDN users infringes the legal rights of a third party, the third party will report to CSDN and CSDN has the right to delete relevant content after confirming the infringement.
4> When the obligee finds that the content of CSDN infringes its legitimate rights and interests, the obligee can report to CSDN, and CSDN will take reasonable measures such as removing relevant content in accordance with Chinese laws, regulations and normative documents.
Terms of Use
1> For any content uploaded to CSDN by the user, the user agrees that CSDN enjoys free, permanent, irrevocableNon ExclusivityThe right to use and sublicense.CSDN has the right to modify, copy, distribute, perform, exhibit and informationNetwork communication, adaptation, translation, compilation and other rights.
2> The resources and contents uploaded to CSDN by users do not represent CSDN's views, and CSDN does not guarantee the authenticity, integrity, accuracy andLegitimacyMake any warranties.
3> Users should keep their CSDN accounts and passwords properly.If an account, password or other important information is lost due to the user's own reason, the user shall bear all adverse consequences.
4> Becausesystem maintenanceWhen the service needs to be suspended due to upgrade or other reasons, CSDN will issue an announcement in advance.Due to hardware failure or other reasonsForce majeureCSDN will not be responsible for any inconvenience and loss caused by the suspension of service.
5> CSDN has the right toThe People's Republic of ChinaThe relevant provisions of the CSDN download channel agreement are constantly revised and improved due to changes in relevant laws, regulations and normative documents.CSDN reserves the right to modify the terms of the download channel agreement at any time.By using CSDN, users agree and voluntarily abide by all the terms in the download channel agreement and its latest version.
6> For issues not covered in this agreement, please refer to relevant nationallaws and regulations。In case of conflict between this Agreement and national laws and regulations, the national laws and regulations shall prevail.
3G/Mobile DevelopmentC/C++Java. Net PHP Embeddedsoftware test data baseNetwork managementProfessional guidance for website production and game development
TAG content related advertising: the system linksEnterprise productsTechnology related peopleInformation aggregationMatch together so that enterprises can targetTarget userCarry out more effective publicity and promotion to reach the target audience directly.Enterprise product or technology zone: set up an exclusive community of relevant products and technologies for enterprises to gather their specificUser group, more effectively convey the enterprise's products and technologies to users in various forms, and also provide online servicestechnical supportTo help enterprises solve their after-sales service in a faster way.The special area includes:Corporate NewsDynamics, technical articles, solutions, trial downloads of new productswhite paperDownloads, user forums, experts or user BLOG groups, etc.
Expert enterprise user blog circle group: help enterprises find influential experts and users among users, and establish and operate expert or user blog circles (groups) to truly achieveWord of mouth marketingThe effect of.Typical partner: IBM,Microsoft，SAP，BEA，Oracle，SUN，Intel，Nokia，CodeGear，Kingdee，Puyuan，UFIDA, Inspur,Sina。
Featured services
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IT talent service: CSDNIT talent service is the first service CSDN provides for enterprises and individuals by combining its own professional advantages
csdn
termFeatured services。The service is based on the CSDN talent channel, and uses professional and personalized service means to build an effective bridge between IT talents and IT manufacturers for talent delivery services.CSDN talent channel is integrationEnterprise servicesInformation of IT professionals integrated with personal services
And service platform to provide IT professionals with information about enterprisesrecruitment information, talent trends, career development, workplace hot spots, training and learning and other relevant knowledge and information to provide IT enterprises with information about enterprise recruitmentInformation Delivery、corporate culturePromotion, talent recommendation, resume screeningpersonnel assessment , AdvancedTechnical talentsHeadhunting and other professional IT talent services.
CSDN talent service not only provides the release of recruitment information.AsProfessional mediaIts core competitiveness is professional channels and influence, as well as content planning and promotion capabilities.In manyRecruitment platformIn the media, only focus on the needs and development of IT professionals.CSDN combines its own user resources and platform resources to create "CSDN specialty"Talent pool”, associated advertisingClassification information, directional delivery, integrated specialtyRecruitment management system, so that your recruitment information can be sent to theTarget populationMedium.
CSDN's IT professional media advantages provide a powerful stage for enterprises to promote corporate culture, talent views and employment methods.CSDN tracks recruitment information and talent data in real time and needsSubtotal, launch series according to common requirementsTalent demandReportsCompensation reportPersonnelOutsourcing servicesSo as to select qualified talents for enterprises.
With more than 100000 professional resume databases and about 20000 registered enterprises, CSDN will make every effort to build China's largest IT professional service platform.ITProject outsourcingService: CSDNIT project outsourcing service is CSDN for enterprisesTechnology R&DDemand, relying on CSDN's advantages in enriching IT technology, human resources and IT technology platform, to launch a special service.IT project outsourcing service is based on CSDN project outsourcing channel, information release, outsourcing project consultation, and peripheral technologyteam buildingConsultingtechnological developmentSix aspects, including consultants, short-term expatriate technical manpower support, and provision of mature technology modules, provide enterprises with "peripheral IT technology"Resource integration”To help enterprises integrate third-party technology R&D resources, provide full service for enterprise IT technology project outsourcing, and comprehensively improve enterprise R&D efficiency.
IT project outsourcing service has been launched since June 2006. After half a year of trial operation, 673 projects have been released, with a cumulative amount of 3 million yuan. It is the most professional in ChinaOutsourcing servicesPlatform.
Information release of outsourcing channel: when an enterprise needs to release information on CSDN outsourcing channel to recruit surrounding technical teams for a temporary project, the information release service provided by CSDN project channel quickly raises a large number of alternative surrounding technical teams to help the enterprise complete project outsourcing.
Outsourcing project consultation cloth: when an enterprise needs to outsource a relatively independent IT technology projectProject analysis, DevelopmentTeam building、Project supervision, project consultantProject evaluationThe whole process outsourcing project consulting service with acceptance helps enterprises complete project research and development with low cost, high efficiency and high quality.
Consulting on the construction of surrounding technical teams: when an enterprise needs to establish a relatively long-term stable surrounding technical team, it provides a series of services for the enterprise, such as personnel searching, team building, coordination management, and technical consultants, to establish a long-term surrounding technology with excellent technology and stable team for the enterpriseR&D team。
Technical development consultant: When an enterprise encounters technical problems or does not have mature development experience in the R&D field in the R&D process, it provides experienced and skilled IT technology experts to serve as the enterprise's "technical development consultant", greatly improving the enterprise's R&D strength.
Short term expatriate technical manpower support: when the enterprise has a temporary shortage of manpower in the R&D process, it provides short-term expatriate technical personnel for the enterprise, provides technical manpower support for the enterprise, and helps the enterprise complete its R&D tasks.
Provide mature technology modules: When an enterprise needs to realize specific functions in its projects or products in the R&D process, CSDN is rich inmiddleware And mature technology modules, which can greatly reduce the cost ofdevelopment cost Reduce enterprise development risks.
Programmer Magazine
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《programmer》As the most influential technical journal in China, the magazine has been published for seven years with an annual circulation of 900000 copies. It is a high-end technical magazine oriented at professional developers, project managers, CTOs&CIOs in China, and has won the trust of Chinese IT professionals and enterprise manufacturers with its unique positioning of industrialization, specialization, and human culture.Programmer pays full attention to the development of software technology, software people and software enterprises, providing Chinese programmers and software related enterprises withprofessional services。The content of the magazine is forward-looking, professionalIdeologicalPracticality leads readers to realize development and gain knowledge and inspiration.
Programmer magazine is divided into four sections: report, management, technology, product and application. In addition, each issue will also focus on theSpecial planningWith a length of more than 30 pages, in-depth and comprehensive analysis of market hot spots, from the industry to technology, from products to applications, to gather a strong team of experts to stimulatesoftware developmentIndustry, providing guidance information for magazine readers.
The magazine has more than 200 cooperative customers, including many world-famous IT companies, such asIBM、Microsoft、Google, Sun, Intel, Sybase, and excellentChinaIT companies,RudongSoftUFIDA、Kingdee、wave, Zhongchuang, etc.publicationOfficial websiteCSDN has the following popular channels: NetBeans channel;JavaChannel;DOTNET channel;Database channel;middleware Channel;Software R&DChannel;software test Channel;SOA channel;CIO/CTOChannel;Security channel;Business platform;Mobile channel.
Data leakage
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Event description
Partial leaked CSDN database information
On the morning of December 21, 2011, a hacker disclosed the user database of the developer technology community CSDN website on the Internet.Including more than 6 million registered email accounts and correspondingenable password 。SohuAfter IT learned the message, it logged in to CSDN. It found that the login page jumped to a CSDN passport upgrade notice, and it was unable to log in.
CSDN PassSohu WeiboResponding to the above message, CSDN said that after preliminary analysis, this database was used for backup in 2009. Because the cause was not found out, it was leaked. We hereby apologize to all users affected by this.CSDN name has been sent topoliceReport the case, and the public security organ is also investigating relevant clues.At the same time, CSDN has 20 millionRegistered userThe account password database of has been adoptedciphertextProtection and backup.
Although CSDN has made an official response, many users have expressed great anger and dissatisfaction with the behavior that CSDN database saves user passwords in clear text.Some users said that CSDN onlymicro-blogIt is irresponsible to apologize to users on the website. You should quickly publish an announcement to let users change their passwords first.Moreover, in view of the fact that there had been a database leak before, netizens could not forgive and understand CSDN's repeated low-level mistakes.
At about 5 p.m., the CSDN login page has returned to normal, and no upgrade notice and other prompt messages will pop up.However, some netizens said that as of 17:00 on December 21, 2011, some of the leaked databases were still available.You can still successfully access other people's pages by using the leaked data.[12]
Case solved
The once blatant case of CSDN website user data leakage has finally been solved.On March 20, 2012, it was reported that the police took more than 40 days to catch suspected illegal acquisitioncomputer data Five suspects, including Zeng, who committed the crime, will be held in criminal detention.At the same time, the Beijing policeWebsite securityHidden dangeradministrative warningPunishment, which is implemented in our countryInformation security level protectionThe first since the system“infringement notice”。
The suspect is caught
The police were in Zhejiang on February 4, 2012WenzhouCapture the suspect Zeng.throughPreliminary review, Zeng used CSDN in April 2010Website vulnerability, illegally intrude into the server to obtain user dataCriminal factsHe confessed that he had invadedRecharging platformAnd the criminal facts of a stock system.
Administrative warning punishment
After the incident, the Beijing police investigated the CSDN website and found that the website did not implement the national information security level protection system, and the security management system and technical protection measures were not implemented in place, which caused users toInformation leakageThe main reason for.Beijing Municipal Public Security BureauTherefore, specific rectification requirements were proposed to CSDN network operation company, andBeijing Chuangxin Lezhi Information Technology Co., LtdGive administrative warning punishment.[13]
