Latest update: July 18, 2022

A list with all the broken links, I got it from this workflow: https://github.com/LuigiImVector/free-programming-books/actions/runs/2692542026 (I used this script)

🛠️ How to proceed

First look up for an alternative link:

Try to change protocol http-https.
On the same site. Maybe was moved due to a website redesign.
In the author/editorial/publisher site
In The Wayback Machine or Unglue.it
In third-party websites, specially public libraries, universities or colleges.

If in none of ⬆️ was found, then delete it

➡️ Remember to read the CONTRIBUTING file before submit the pull request.

./books/

[x] books//free-programming-books-pt_BR.md

> Links 
1. [L066] 404 https://vimbook.gitbook.io/vimbook
2. [L120] 404 http://webserver2.tecgraf.puc-rio.br/~manuel/Download/Programacao%20Orientada%20a%20Objetos%20em%20C++.pdf
3. [L270] 404 http://udgwebdev.com/meteor/
4. [L277] 404 http://udgwebdev.com/nodejs/
5. [L291]  http://www.vuejs-brasil.com.br/ Failed to open TCP connection to www.vuejs-brasil.com.br:80 (getaddrinfo: Name or service not known) 
6. [L335] 404 https://symfony.com/doc/5.0/the-fast-track/pt_BR/index.html

[x] books//free-programming-books-ko.md

> Links 
1. [L123] 404 https://thebook.io/006718/

[x] books//free-programming-books-fa_IR.md

> Links 
1. [L23]  http://networksciencebook.com/ Failed to open TCP connection to networksciencebook.com:80 (Connection timed out - connect(2) for "networksciencebook.com" port 80) 
2. [L66] 404 https://symfony.com/doc/current/the-fast-track/fa/index.html

[x] books//free-programming-books-fr.md

> Links 
1. [L098]  http://drpaulcarter.com/pcasm/ Failed to open TCP connection to drpaulcarter.com:80 (Connection timed out - connect(2) for "drpaulcarter.com" port 80) 
2. [L185] 429 http://geekographie.maieul.net/95
3. [L223]  http://sagebook.gforge.inria.fr/ Failed to open TCP connection to sagebook.gforge.inria.fr:80 (Connection timed out - connect(2) for "sagebook.gforge.inria.fr" port 80) 
4. [L246]  http://www.lincoste.com/ebooks/pdf/informatique/programmer_php.pdf Failed to open TCP connection to www.lincoste.com:80 (getaddrinfo: Name or service not known) 
5. [L264]  http://www.lincoste.com/ebooks/pdf/informatique/python.pdf Failed to open TCP connection to www.lincoste.com:80 (getaddrinfo: Name or service not known) 
6. [L287]  http://french.railstutorial.org/chapters/beginning Failed to open TCP connection to french.railstutorial.org:80 (getaddrinfo: Name or service not known)

[x] books//free-programming-books-ru.md

> Links 
01. [L103]  http://fprog.ru/ end of file reached 
02. [L108]  http://networksciencebook.com/ Failed to open TCP connection to networksciencebook.com:80 (Connection timed out - connect(2) for "networksciencebook.com" port 80) 
03. [L127] 404 http://www.mcst.ru/doc/book_121130.pdf
04. [L142] 403 https://metanit.com/cpp/c
05. [L150] 403 https://metanit.com/sharp/patterns
06. [L151] 403 https://metanit.com/sharp/tutorial
07. [L152] 403 https://metanit.com/sharp/net
08. [L161] 403 https://metanit.com/cpp/tutorial
09. [L203] 403 https://metanit.com/go/tutorial
10. [L205]  https://gobyexample.ru/ Failed to open TCP connection to gobyexample.ru:443 (Connection timed out - connect(2) for "gobyexample.ru" port 443) 
11. [L222] 403 https://metanit.com/web/html5
12. [L236] 403 https://metanit.com/java/tutorial
13. [L252] 403 https://metanit.com/java/android
14. [L303] 403 https://metanit.com/web/webgl
15. [L305] 403 https://metanit.com/web/javascript
16. [L316] 403 https://metanit.com/web/angular
17. [L323] 403 https://metanit.com/web/jquery
18. [L331] 403 https://metanit.com/web/nodejs
19. [L345] 403 https://metanit.com/web/react
20. [L354] 403 https://metanit.com/web/vuejs
21. [L361] 403 https://metanit.com/java/kotlin
22. [L373] 404 http://lisper.ru/wiki/Cookbook
23. [L375] 404 http://lisper.ru/pcl/
24. [L385] 403 https://metanit.com/sharp/adonet
25. [L386] 403 https://metanit.com/sharp/aspnet5
26. [L387] 403 https://metanit.com/sharp/mvc5
27. [L388] 403 https://metanit.com/sharp/aspnet_webapi
28. [L389] 403 https://metanit.com/sharp/entityframeworkcore
29. [L389] 403 https://metanit.com/sharp/entityframework
30. [L453]  http://ru.diveintopython.net/toc.html Failed to open TCP connection to ru.diveintopython.net:80 (getaddrinfo: Name or service not known) 
31. [L456] 403 https://metanit.com/python/tutorial
32. [L470] 403 https://metanit.com/python/django
33. [L512] 403 http://railstutorial.ru/chapters/4_0/beginning
34. [L550] 403 https://metanit.com/sql/sqlserver
35. [L582] 403 https://metanit.com/web/typescript
36. [L589] 403 https://metanit.com/web/angular2
37. [L598] 404 https://younglinux.info/linuxintro

[x] books//free-programming-books-tr.md

> Links 
1. [L126]  https://www.ismailari.com/blog/matlab-programlamaya-giris Failed to open TCP connection to www.ismailari.com:443 (getaddrinfo: Temporary failure in name resolution) 
2. [L147]  https://www.pythondersleri.com/p/django-egitim-serisi.html Failed to open TCP connection to www.pythondersleri.com:443 (Connection timed out - connect(2) for "www.pythondersleri.com" port 443) 
3. [L148] 404 https://gokmengorgen.net/django-notes

[x] books//free-programming-books-zh.md

> Links 
01. [L115] 503 http://www.kancloud.cn/kancloud/intro-to-prog/52592
02. [L122]  http://learnvimscriptthehardway.onefloweroneworld.com/ Failed to open TCP connection to learnvimscriptthehardway.onefloweroneworld.com:80 (getaddrinfo: Name or service not known) 
03. [L155]  http://cb.vu/unixtoolbox_zh_CN.xhtml Failed to open TCP connection to cb.vu:80 (getaddrinfo: Name or service not known) 
04. [L160] 503 http://www.kancloud.cn/kancloud/a-programmer-prepares
05. [L178]  http://es.xiaoleilu.com/ Failed to open TCP connection to es.xiaoleilu.com:80 (getaddrinfo: No address associated with hostname) 
06. [L231] 404 https://github.com/fool2fish/selenium-doc
07. [L306] 404 http://www.apkbus.com/design/index.html
08. [L333] 404 https://firebasestorage.googleapis.com/v0/b/gitbook-28427.appspot.com/o/assets%2F-ME5zR-03ZEHgp2kv7bW%2F-MF9EIY-s19_w19_Unae%2F-MF9F-HCs1nLOkY1mLVi%2FBeej-cn-20140429.zip?alt=media&token=de27f96b-2aed-4c97-8879-649638c7559f
09. [L335]  http://docs.linuxtone.org/ebooks/C&CPP/c/ Failed to open TCP connection to docs.linuxtone.org:80 (Connection timed out - connect(2) for "docs.linuxtone.org" port 80) 
10. [L347]  http://www.nowamagic.net/librarys/books/contents/c Failed to open TCP connection to www.nowamagic.net:80 (Connection timed out - connect(2) for "www.nowamagic.net" port 80) 
11. [L371]  http://dart.lidian.info/wiki/Language_Tour Failed to open TCP connection to dart.lidian.info:80 (Network is unreachable - connect(2) for "dart.lidian.info" port 80) 
12. [L382] 404 https://elixirschool.com/cn/
13. [L401]  http://go.ctolib.com/docs/read/magical-go-c-index.html Failed to open TCP connection to go.ctolib.com:80 (Connection timed out - connect(2) for "go.ctolib.com" port 80) 
14. [L419]  http://gorevel.cn/docs/manual/index.html Failed to open TCP connection to gorevel.cn:80 (getaddrinfo: Name or service not known) 
15. [L452] 404 http://nilsun.github.io/apple-watch/
16. [L461] 404 https://github.com/alibaba/p3c/blob/master/Java%E5%BC%80%E5%8F%91%E6%89%8B%E5%86%8C%EF%BC%88%E5%B5%A9%E5%B1%B1%E7%89%88%EF%BC%89.pdf
17. [L492]  http://bq69.com/blog/articles/script/868/google-javascript-style-guide.html Failed to open TCP connection to bq69.com:80 (Connection timed out - connect(2) for "bq69.com" port 80) 
18. [L509] 429 https://github.com/zensh/AngularjsTutorial_cn
19. [L510] 429 https://github.com/mgechev/angularjs-style-guide/blob/master/README-zh-cn.md
20. [L516] 429 https://github.com/the5fire/backbonejs-learning-note
21. [L517]  http://www.css88.com/doc/backbone/ Failed to open TCP connection to www.css88.com:80 (getaddrinfo: Name or service not known) 
22. [L523] 429 https://github.com/mbostock/d3/wiki/API--%E4%B8%AD%E6%96%87%E6%89%8B%E5%86%8C
23. [L541] 429 https://github.com/kokdemo/impress.js-tutorial-in-Chinese
24. [L546]  http://www.nowamagic.net/librarys/books/contents/jquery Failed to open TCP connection to www.nowamagic.net:80 (Connection timed out - connect(2) for "www.nowamagic.net" port 80) 
25. [L553] 429 https://github.com/nswbmw/N-blog
26. [L556]  http://nodejs.ctolib.com/docs/sfile/jstraining/engineering.html Failed to open TCP connection to nodejs.ctolib.com:80 (getaddrinfo: Name or service not known) 
27. [L557] 429 https://github.com/guo-yu/koa-guide
28. [L560] 429 https://github.com/alsotang/node-lessons
29. [L561] 429 https://github.com/jollen/nodejs-fullstack-lessons
30. [L563] 429 https://github.com/nodejs-tw/nodejs-wiki-book
31. [L570] 429 https://github.com/theJian/build-a-hn-front-page
32. [L571] 429 https://github.com/hateonion/react-bits-CN
33. [L573] 429 https://github.com/fakefish/react-webpack-cookbook
34. [L586] 502 http://css88.com/doc/zeptojs_api
35. [L591] 429 https://github.com/49951331/graduate-project-102pj/blob/master/docs/latex123.pdf
36. [L604] 404 http://www.w3cschool.cc/manual/lua53doc/contents.html
37. [L621] 429 https://github.com/huangz1990/annotated_redis_source
38. [L622] 429 https://github.com/huangz1990/redis-3.0-annotated
39. [L626] 429 https://github.com/justinyhuang/the-little-mongodb-book-cn/blob/master/mongodb.md
40. [L627] 429 https://github.com/JasonLai256/the-little-redis-book/blob/master/cn/redis.md
41. [L632] 429 https://github.com/fayland/chinese-perl-book
42. [L640]  https://codeigniter.org.tw/userguide3 Failed to open TCP connection to codeigniter.org.tw:443 (Connection refused - connect(2) for "codeigniter.org.tw" port 443) 
43. [L642] 404 http://www.myleftstudio.com/
44. [L660] 404 https://symfony.com/doc/current/the-fast-track/zh_CN/index.html
45. [L674]  https://bop.molun.net/ Failed to open TCP connection to bop.molun.net:443 (getaddrinfo: Name or service not known) 
46. [L676] 429 https://github.com/jiechic/diveintopython3
47. [L677]  https://www.ctolib.com/docs/sfile/think-python-2e/0.html Failed to open TCP connection to www.ctolib.com:443 (Connection timed out - connect(2) for "www.ctolib.com" port 443) 
48. [L687] 404 http://funhacks.net/explore-python
49. [L704] 404 http://yanping.me/shiny-tutorial/
50. [L716] 429 https://github.com/JuanitoFatas/rails-style-guide/blob/master/README-zhCN.md
51. [L717] 429 https://github.com/JuanitoFatas/ruby-style-guide/blob/master/README-zhCN.md
52. [L719]  http://guides.ruby-china.org/ Failed to open TCP connection to guides.ruby-china.org:80 (getaddrinfo: Name or service not known) 
53. [L725] 429 https://github.com/rustcc/rust-by-example/
54. [L726] 429 https://github.com/KaiserY/rust-book-chinese
55. [L727] 429 https://github.com/photino/rust-notes
56. [L728] 429 https://github.com/rustcc/RustPrimer
57. [L753] 429 https://github.com/qinjx/30min_guides/blob/master/shell.md
58. [L768] 429 https://github.com/jkchao/typescript-book-chinese
59. [L776] 522 https://angular.cn/docs
60. [L778] 522 https://angular.cn/tutorial
61. [L789] 429 https://github.com/Youchien/concise-excel-vba

[ ] books//free-programming-books-ja.md

> Links 
01. [L297] 404 http://memo.sappari.org/coffeescript/coffeescript-langref
02. [L372]  https://www.ntts.co.jp/column/tec/java_03/ Failed to open TCP connection to www.ntts.co.jp:443 (getaddrinfo: Name or service not known) 
03. [L378]  https://www.ntts.co.jp/column/tec/java_02/ Failed to open TCP connection to www.ntts.co.jp:443 (getaddrinfo: Name or service not known) 
04. [L406]  http://seiza.dip.jp/link/files/writingrobustjavacode.pdf Failed to open TCP connection to seiza.dip.jp:80 (Connection timed out - connect(2) for "seiza.dip.jp" port 80) 
05. [L417] 404 https://developer.mozilla.org/ja/docs/JavaScript_style_guide
06. [L445] 403 https://stacktrace.jp/jquery/ui
07. [L518] 404 https://developer.apple.com/jp/devcenter/ios/library/documentation/ProgrammingWithObjectiveC.pdf
08. [L519] 404 https://developer.apple.com/jp/devcenter/ios/library/documentation/CocoaEncyclopedia.pdf
09. [L545]  https://prev.net-newbie.com/support/pdf2/ Failed to open TCP connection to prev.net-newbie.com:443 (getaddrinfo: Name or service not known) 
10. [L564] 403 http://ap.kakoku.net/index.html
11. [L577]  http://works.surgo.jp/translation/pyguide.html Failed to open TCP connection to works.surgo.jp:80 (getaddrinfo: Name or service not known) 
12. [L578] 404 http://japanichaos.appspot.com/
13. [L607]  http://cse.naro.affrc.go.jp/takezawa/r-tips/r2.html Failed to open TCP connection to cse.naro.affrc.go.jp:80 (Connection timed out - connect(2) for "cse.naro.affrc.go.jp" port 80) 
14. [L614] 404 https://nuss.nagoya-u.ac.jp/index.php/s/kN6ZxsyReNzRPlM
15. [L615]  http://cse.naro.affrc.go.jp/takezawa/r-tips.pdf Failed to open TCP connection to cse.naro.affrc.go.jp:80 (Connection timed out - connect(2) for "cse.naro.affrc.go.jp" port 80)

[ ] books//free-programming-books-subjects.md

> Links 
01. [L120]  http://www.inf.fh-flensburg.de/lang/algorithmen/sortieren/algoen.htm Failed to open TCP connection to www.inf.fh-flensburg.de:80 (Connection timed out - connect(2) for "www.inf.fh-flensburg.de" port 80) 
02. [L144]  https://chain.courses/ Failed to open TCP connection to chain.courses:443 (Connection timed out - connect(2) for "chain.courses" port 443) 
03. [L226]  http://www.computervisionmodels.com/ Failed to open TCP connection to www.computervisionmodels.com:80 (Connection timed out - connect(2) for "www.computervisionmodels.com" port 80) 
04. [L279]  http://pcgbook.com/ Failed to open TCP connection to pcgbook.com:80 (Connection timed out - connect(2) for "pcgbook.com" port 80) 
05. [L312] 404 https://people.gnome.org/~swilmet/glib-gtk-dev-platform.pdf
06. [L344] 404 https://pytorch.org/assets/deep-learning/Deep-Learning-with-PyTorch.pdf
07. [L347] 404 https://mitpress.ublish.com/ereader/7093/?preview=#page/Cover
08. [L406]  https://www.people.vcu.edu/~rhammack/BookOfProof/Main.pdf Failed to open TCP connection to www.people.vcu.edu:443 (Connection timed out - connect(2) for "www.people.vcu.edu" port 443) 
09. [L411] 404 https://mitpress.ublish.com/ereader/77/?preview#page/Cover
10. [L424]  http://vassarstats.net/textbook/ Failed to open TCP connection to vassarstats.net:80 (Connection timed out - connect(2) for "vassarstats.net" port 80) 
11. [L444] 404 https://www.dartmouth.edu/~chance/teaching_aids/books_articles/probability_book/book.html
12. [L486]  http://www.gregorybard.com/books.html Failed to open TCP connection to www.gregorybard.com:80 (Connection timed out - connect(2) for "www.gregorybard.com" port 80) 
13. [L588] 404 https://launchschool.com/books/http
14. [L592]  http://networksciencebook.com/ Failed to open TCP connection to networksciencebook.com:80 (Connection timed out - connect(2) for "networksciencebook.com" port 80) 
15. [L650] 404 https://computing.llnl.gov/tutorials/parallel_comp/
16. [L686] 404 http://www.thomaswong.net/introduction-to-classical-and-quantum-computing-1e2p.pdf
17. [L737] 404 https://launchschool.com/books/agile_planning
18. [L773] 404 https://launchschool.com/books/working_with_apis

[ ] books//free-programming-books-ar.md

> Links 
1. [L032] 404 https://www.ev-center.com/uploads/2/1/2/6/21261678/
2. [L112] 404 https://symfony.com/doc/5.0/the-fast-track/ar/index.html

[ ] books//free-programming-books-pt_PT.md

> Links 
1. [L29]  http://alfarrabio.di.uminho.pt/~albie/lshort/pt-lshort.pdf Failed to open TCP connection to alfarrabio.di.uminho.pt:80 (Connection timed out - connect(2) for "alfarrabio.di.uminho.pt" port 80) 
2. [L35]  http://www4.di.uminho.pt/~mjf/pub/LC-Prolog.pdf Failed to open TCP connection to www4.di.uminho.pt:80 (Connection timed out - connect(2) for "www4.di.uminho.pt" port 80)

[ ] books//free-programming-books-hu.md

> Links 
1. [L073]  http://www.banyai-kkt.sulinet.hu/robotika/Segedanyag/Egyszeru_robotika.pdf Failed to open TCP connection to www.banyai-kkt.sulinet.hu:80 (getaddrinfo: Name or service not known) 
2. [L090] 404 http://devportal.hu/

[ ] books//free-programming-books-de.md

> Links 
1. [L057]  http://drpaulcarter.com/pcasm Failed to open TCP connection to drpaulcarter.com:80 (Connection timed out - connect(2) for "drpaulcarter.com" port 80) 
2. [L184] 404 https://symfony.com/doc/5.0/the-fast-track/de/index.html

[ ] books//free-programming-books-it.md

> Links 
1. [L052]  http://www.diegm.uniud.it/schaerf/APS/Dispensa_APS_2_3.pdf Failed to open TCP connection to www.diegm.uniud.it:80 (Connection timed out - connect(2) for "www.diegm.uniud.it" port 80) 
2. [L083]  http://drpaulcarter.com/pcasm/ Failed to open TCP connection to drpaulcarter.com:80 (Connection timed out - connect(2) for "drpaulcarter.com" port 80) 
3. [L099]  http://www.cbmc.it/~marchettil/Tandem2016/Bellini.pdf Failed to open TCP connection to www.cbmc.it:80 (Connection timed out - connect(2) for "www.cbmc.it" port 80) 
4. [L110] 403 http://didatticait.altervista.org/programmazione/CPP/CPP-dispense/CORSO_C.pdf
5. [L136] 404 https://nicolaiarocci.com/mongodb/il-piccolo-libro-di-mongodb.pdf
6. [L233] 404 http://francescomuscolo.altervista.org/manuale_PHP.pdf
7. [L275] 403 http://vbgraphic.altervista.org/warehouse/sites/default/files/downloads/Guida_Angular5_FabioGuerrazzi.pdf
8. [L280] 403 http://liuct.altervista.org/download/repository/ingsof/Appunti_UML.pdf
9. [L286]  http://www.webalice.it/kindofapple/corsovb.pdf Failed to open TCP connection to www.webalice.it:80 (Connection timed out - connect(2) for "www.webalice.it" port 80)

[ ] books//free-programming-books-id.md

> Links 
1. [L055]  https://ibnu.daqiqil.id/buku-codeigniter/ Failed to open TCP connection to ibnu.daqiqil.id:443 (getaddrinfo: Name or service not known) 
2. [L141]  https://arsiteknologi.com/wp-content/uploads/Pemrograman_Berbasis_Objek_Modern_dengan_PHP_Google_Play_Book.pdf Failed to open TCP connection to arsiteknologi.com:443 (Connection refused - connect(2) for "arsiteknologi.com" port 443) 
3. [L169] 403 https://www.researchgate.net/publication/337961765_Smart_Contract_Blockchain_pada_E-Voting

[ ] books//free-programming-books-pl.md

> Links 
1. [L032] 500 http://apki.org/
2. [L063]  http://qvazar.pl/kurs-c/kurs-c Failed to open TCP connection to qvazar.pl:80 (getaddrinfo: Name or service not known) 
3. [L065]  http://janek.ae.krakow.pl/wiluszt/zajecia/c/ansic/ Failed to open TCP connection to janek.ae.krakow.pl:80 (Connection timed out - connect(2) for "janek.ae.krakow.pl" port 80) 
4. [L194] 404 http://cyberpunk.e-spin.pl/86%2c37%2c5/KOD/KURSY-PROGRAMOWANIA/Kurs-PHP-OOP

[ ] books//free-programming-books-ro.md

> Links 
1. [L39] 404 https://symfony.com/doc/current/the-fast-track/ro/index.html

[ ] books//free-programming-books-langs.md

> Links 
01. [L0274] 404 http://robertson.uk.net/Files/APL1&2.pdf
02. [L0275] 404 http://robertson.uk.net/Files/APL3&4.pdf
03. [L0303]  http://mvcmusicstore.codeplex.com/ Failed to open TCP connection to mvcmusicstore.codeplex.com:80 (getaddrinfo: Name or service not known) 
04. [L0305]  http://www.vijaymukhi.com/documents/books/vsnet/content.htm Net::ReadTimeout 
05. [L0394] 404 https://launchschool.com/books/command_line
06. [L0396] 403 https://bash.cyberciti.biz/guide/Main_Page
07. [L0523]  http://cis.stvincent.edu/html/tutorials/swd/ Failed to open TCP connection to cis.stvincent.edu:80 (Connection timed out - connect(2) for "cis.stvincent.edu" port 80) 
08. [L0644]  http://www.lincoste.com/ebooks/english/pdf/computers/database_management_systems.pdf Failed to open TCP connection to www.lincoste.com:80 (getaddrinfo: Name or service not known) 
09. [L0656]  http://dtrace.org/guide/preface.html Failed to open TCP connection to dtrace.org:80 (Connection timed out - connect(2) for "dtrace.org" port 80) 
10. [L0818] 404 https://launchschool.com/books/git
11. [L0914]  http://dev.stephendiehl.com/hask/ Failed to open TCP connection to dev.stephendiehl.com:80 (Connection timed out - connect(2) for "dev.stephendiehl.com" port 80) 
12. [L0941]  http://diveinto.html5doctor.com/ Failed to open TCP connection to diveinto.html5doctor.com:80 (Network is unreachable - connect(2) for "diveinto.html5doctor.com" port 80) 
13. [L1169] 404 https://www.amazon.com/Thinking-JavaScript-Aravind-Shenoy-ebook/dp/B00JUI6LUQ
14. [L1250] 500 http://ember.vicramon.com/
15. [L1274]  http://mediatheque.cite-musique.fr/MediaComposite/Debug/Dossier-Orchestre/ressources/jQuery.Novice.to.Ninja.2nd.Edition.pdf Failed to open TCP connection to mediatheque.cite-musique.fr:80 (Connection timed out - connect(2) for "mediatheque.cite-musique.fr" port 80) 
16. [L1657] 404 https://ocaml.xyz/book/
17. [L1834] 404 https://www.cis.upenn.edu/~matuszek/Concise%20Guides/Concise%20Prolog.html
18. [L2107] 404 https://launchschool.com/books/ruby
19. [L2114] 404 https://launchschool.com/books/oo_ruby
20. [L2221] 404 http://eed3si9n.com/tetrix-in-scala-html5-book

[ ] books//free-programming-books-es.md

> Links 
1. [L128] 404 http://www.hermosaprogramacion.com/android
2. [L135]  http://repositori.uji.es/xmlui/bitstream/handle/10234/24306/s29.pdf Net::ReadTimeout 
3. [L276]  http://www.sage-para-estudiantes.com/ Failed to open TCP connection to www.sage-para-estudiantes.com:80 (Connection timed out - connect(2) for "www.sage-para-estudiantes.com" port 80) 
4. [L312] 404 https://symfony.com/doc/5.0/the-fast-track/es/index.html
5. [L334]  http://repositori.uji.es/xmlui/bitstream/handle/10234/24305/s23.pdf Net::ReadTimeout

./casts/

[ ] casts//free-podcasts-screencasts-pt_BR.md

> Links 
1. [L035] 503 http://datascienceacademy.com.br/blog/podcast-dsa/
2. [L065] 500 http://www.cocoaheads.com.br/podcasts

[ ] casts//free-podcasts-screencasts-es.md

> Links 
1. [L15] 404 https://www.datafuturology.com/data-futurology-espanol

[ ] casts//free-podcasts-screencasts-tr.md

> Links 
1. [L10]  https://devpod.org/ Failed to open TCP connection to devpod.org:443 (Connection refused - connect(2) for "devpod.org" port 443)

[ ] casts//free-podcasts-screencasts-sv.md

> Links 
1. [L15]  http://stillinbeta.se/ Failed to open TCP connection to stillinbeta.se:80 (getaddrinfo: Name or service not known)

[ ] casts//free-podcasts-screencasts-ru.md

> Links 
1. [L091]  http://radiojs.ru/ Failed to open TCP connection to radiojs.ru:80 (getaddrinfo: Temporary failure in name resolution)

[ ] casts//free-podcasts-screencasts-en.md

> Links 
1. [L238] 403 https://blog.codepen.io/radio/
2. [L263]  https://reactive.audio/ Failed to open TCP connection to reactive.audio:443 (getaddrinfo: Name or service not known) 
3. [L271]  https://www.talkingcode.com/ Failed to open TCP connection to www.talkingcode.com:443 (Connection timed out - connect(2) for "www.talkingcode.com" port 443) 
4. [L285] 404 https://5by5.tv/webahead

./courses/

[ ] courses//free-courses-th.md

> Links 
1. [L42]  http://marcuscode.com/lang/javascript Failed to open TCP connection to marcuscode.com:80 (Connection timed out - connect(2) for "marcuscode.com" port 80)

[ ] courses//free-courses-ko.md

> Links 
1. [L175] 404 https://jihooyim1.gitbooks.io/linuxbasic/content

[ ] courses//free-courses-vi.md

> Links 
01. [L041]  https://www.codehub.com.vn/Hoc-AJAX Failed to open TCP connection to www.codehub.com.vn:443 (getaddrinfo: Temporary failure in name resolution) 
02. [L057] 500 https://tedu.com.vn/khoa-hoc/khoa-hoc-aspnet-core-co-ban-14.html
03. [L069]  https://www.codehub.com.vn/Twitter-Bootstrap Failed to open TCP connection to www.codehub.com.vn:443 (getaddrinfo: Temporary failure in name resolution) 
04. [L103]  https://www.codehub.com.vn/CSS-Co-Ban Failed to open TCP connection to www.codehub.com.vn:443 (getaddrinfo: Temporary failure in name resolution) 
05. [L121]  https://www.codehub.com.vn/Golang-Co-Ban Failed to open TCP connection to www.codehub.com.vn:443 (getaddrinfo: Temporary failure in name resolution) 
06. [L127]  https://www.codehub.com.vn/HTML-Co-Ban Failed to open TCP connection to www.codehub.com.vn:443 (getaddrinfo: Temporary failure in name resolution) 
07. [L139]  https://www.codehub.com.vn/ES6-Co-Ban Failed to open TCP connection to www.codehub.com.vn:443 (getaddrinfo: Temporary failure in name resolution) 
08. [L142] 500 https://tedu.com.vn/khoa-hoc/khoa-hoc-java-script-can-ban-12.html
09. [L143]  https://www.codehub.com.vn/JavaScript-Co-Ban Failed to open TCP connection to www.codehub.com.vn:443 (getaddrinfo: Temporary failure in name resolution) 
10. [L150]  https://www.codehub.com.vn/AngularJS-Co-Ban Failed to open TCP connection to www.codehub.com.vn:443 (getaddrinfo: Temporary failure in name resolution) 
11. [L156]  https://www.codehub.com.vn/jQuery-Co-Ban Failed to open TCP connection to www.codehub.com.vn:443 (getaddrinfo: Temporary failure in name resolution) 
12. [L175]  https://www.codehub.com.vn/Node-js-Co-Ban Failed to open TCP connection to www.codehub.com.vn:443 (getaddrinfo: Temporary failure in name resolution) 
13. [L184]  https://www.codehub.com.vn/Objective-C-Co-Ban Failed to open TCP connection to www.codehub.com.vn:443 (getaddrinfo: Temporary failure in name resolution) 
14. [L189]  https://www.codehub.com.vn/PHP-Co-Ban Failed to open TCP connection to www.codehub.com.vn:443 (getaddrinfo: Temporary failure in name resolution) 
15. [L199]  https://www.codehub.com.vn/Python-Co-Ban Failed to open TCP connection to www.codehub.com.vn:443 (getaddrinfo: Temporary failure in name resolution) 
16. [L218]  https://www.codehub.com.vn/Ruby-Co-Ban Failed to open TCP connection to www.codehub.com.vn:443 (getaddrinfo: Temporary failure in name resolution) 
17. [L230]  https://www.codehub.com.vn/SQL-Co-Ban Failed to open TCP connection to www.codehub.com.vn:443 (getaddrinfo: Temporary failure in name resolution) 
18. [L290]  https://www.codehub.com.vn/Xcode-Co-Ban Failed to open TCP connection to www.codehub.com.vn:443 (getaddrinfo: Temporary failure in name resolution) 
19. [L295]  https://www.codehub.com.vn/XML-Co-Ban Failed to open TCP connection to www.codehub.com.vn:443 (getaddrinfo: Temporary failure in name resolution)

[ ] courses//free-courses-id.md

> Links 
1. [L070] 404 https://kodedasar.com/belajar-cpp/

[ ] courses//free-courses-ru.md

> Links 
1. [L040] 404 https://www.coursera.org/learn/c-plus-plus-white
2. [L041] 404 https://www.coursera.org/learn/c-plus-plus-yellow
3. [L042] 404 https://www.coursera.org/learn/c-plus-plus-brown
4. [L043] 404 https://www.coursera.org/learn/c-plus-plus-red
5. [L044] 404 https://www.coursera.org/learn/c-plus-plus-black
6. [L153] 404 https://www.coursera.org/learn/python-osnovy-programmirovaniya

[ ] courses//free-courses-fa_IR.md

> Links 
1. [L037] 404 https://sokanacademy.com/courses/git
2. [L044] 404 https://sokanacademy.com/courses/java
3. [L064]  https://mskm.ir/category/programming/kotlin/ Failed to open TCP connection to mskm.ir:443 (getaddrinfo: No address associated with hostname) 
4. [L071] 404 https://sokanacademy.com/courses/linux
5. [L092] 404 https://sokanacademy.com/courses/php-oop
6. [L102] 404 https://sokanacademy.com/courses/laravelexcel
7. [L105] 404 https://sokanacademy.com/courses/oauth-passport
8. [L115] 404 https://sokanacademy.com/courses/python

[ ] courses//free-courses-es.md

> Links 
01. [L056] 404 https://miriadax.net/web/big-data-el-valor-anadido-de-los-datos-en-su-negocio
02. [L057] 404 https://miriadax.net/web/big-data-marketing
03. [L058] 404 https://miriadax.net/web/big-data-para-una-ciudad-inteligente-2-edicion-
04. [L059] 404 https://miriadax.net/web/introduccion-al-business-intelligence-y-al-big-data-3-edicion-
05. [L078] 404 https://miriadax.net/web/matlab-y-octave-para-ingenieros-y-cientificos
06. [L079] 404 https://miriadax.net/web/pensamiento-computacional-en-la-escuela-2ed
07. [L094] 404 https://miriadax.net/web/agilidad-y-lean-gestionando-los-proyectos-y-negocios-del-s-xxi-6-edicion-
08. [L096] 404 https://miriadax.net/web/gestion-de-proyectos-con-metodologias-agiles-y-enfoques-lean-3-edicion-
09. [L130] 404 https://miriadax.net/web/introduccion-al-machine-learning-2-edicion-
10. [L137] 404 https://miriadax.net/web/creacion-y-retoque-2-ed
11. [L143] 404 https://miriadax.net/web/software-libre-ofimatica-con-openoffice
12. [L148] 404 https://miriadax.net/web/subtitular-en-linea-2-edicion-
13. [L169] 403 https://platzi.com/clases/programacion-basica/
14. [L175] 404 https://miriadax.net/web/introduccion-programacion-ciencias-ingenieria-2edicion
15. [L177] 404 https://miriadax.net/web/introduccion-a-la-programacion-descubre-el-lenguaje-de-la-era-digital-5-edicion-
16. [L179] 404 https://miriadax.net/web/introduccion_desarrollo_web
17. [L180] 404 https://miriadax.net/web/aprende-r-rstudio
18. [L191] 502 https://es.khanacademy.org/computing/computer-programming#programming
19. [L209] 404 https://miriadax.net/web/creando-apps-aprende-a-programar-aplicaciones-moviles-4-edicion-
20. [L215] 404 https://miriadax.net/web/desarrollo-de-servicios-en-la-nube-con-html5-javascript-y-nodejs-2-edicion-
21. [L219] 404 https://miriadax.net/web/diseno-web-con-html5-css-2-edicion-
22. [L227] 404 https://miriadax.net/web/introduccion-al-desarrollo-de-aplicaciones-moviles-con-windows-phone-2-edicion-
23. [L252] 404 https://miriadax.net/web/internet-de-las-cosas-como-desarrollar-soluciones-en-fiware
24. [L259] 404 https://miriadax.net/web/ciberseguridad-entender-los-ataques-para-desplegar-contramedidas-2-edicion-
25. [L265] 404 https://miriadax.net/web/seguridad-informatica-practica
26. [L272]  https://ocw.ua.es/es/ingenieria-y-arquitectura/introduccion-a-xampp-y-mysql-2012.html Failed to open TCP connection to ocw.ua.es:443 (Connection timed out - connect(2) for "ocw.ua.es" port 443) 
27. [L277] 404 https://miriadax.net/web/aprende-wordpress-de-forma-sencilla-2-edicion-
28. [L284] 404 https://miriadax.net/web/conectando-el-futuro-con-fibra-optica-5-edicion-_prueba
29. [L299] 404 https://miriadax.net/web/diseno-organizacion-y-evaluacion-de-videojuegos-y-gamificacion-3-edicion-_201604220800
30. [L300] 404 https://miriadax.net/web/introduccion-a-la-gamificacion-a-traves-de-casos-practicos
31. [L302] 404 https://miriadax.net/web/introduccion-al-diseno-de-videojuegos-2-edicion-
32. [L303] 404 https://miriadax.net/web/robots-videojuegos-aulas-scratch-arduino-profesores-3ed
33. [L309] 404 https://miriadax.net/web/busqueda-y-gestion-de-la-informacion-en-la-web-3-edicion-
34. [L310] 404 https://mooc.tecnm.mx/courses/course-v1:TecNMx+CCACM-2+2020_T2/about
35. [L311] 404 https://miriadax.net/web/encontrando-tesoros-en-la-red-4-edicion-
36. [L312] 404 https://miriadax.net/web/publicidad-en-linea-campanas-en-facebook-y-adwords-2-edicion-
37. [L313] 404 https://miriadax.net/web/redaccion-en-internet-2-edicion-
38. [L314] 404 https://miriadax.net/web/seo-posicionamiento-natural-en-buscadores-2-edicion-

[ ] courses//free-courses-uk.md

> Links 
1. [L20]  http://www.vitaliypodoba.com/tutorials/python2-beginners-course/ Failed to open TCP connection to www.vitaliypodoba.com:80 (Connection timed out - connect(2) for "www.vitaliypodoba.com" port 80)

[ ] courses//free-courses-kk.md

> Links 
1. [L19]  https://bilgen.academy/course/view.php?id=512 Failed to open TCP connection to bilgen.academy:443 (Connection timed out - connect(2) for "bilgen.academy" port 443) 
2. [L24]  https://bilgen.academy/course/view.php?id=510 Failed to open TCP connection to bilgen.academy:443 (Connection timed out - connect(2) for "bilgen.academy" port 443) 
3. [L29]  https://bilgen.academy/course/view.php?id=506 Failed to open TCP connection to bilgen.academy:443 (Connection timed out - connect(2) for "bilgen.academy" port 443) 
4. [L34]  https://bilgen.academy/course/view.php?id=508 Failed to open TCP connection to bilgen.academy:443 (Connection timed out - connect(2) for "bilgen.academy" port 443)

[ ] courses//free-courses-pt_BR.md

> Links 
1. [L099]  https://app.balta.io/courses/7184 Failed to open TCP connection to app.balta.io:443 (Connection timed out - connect(2) for "app.balta.io" port 443) 
2. [L174] 404 https://app.rocketseat.com.br/discover/courses
3. [L289] 404 https://app.rocketseat.com.br/node/curso-react-native
4. [L325]  https://app.balta.io/courses/7181 Failed to open TCP connection to app.balta.io:443 (Connection timed out - connect(2) for "app.balta.io" port 443)

[ ] courses//free-courses-en.md

> Links 
1. [L0129] 403 https://online.stanford.edu/courses/soe-ycsalgorithms1-algorithms-design-and-analysis-part-1
2. [L0130] 403 https://online.stanford.edu/courses/soe-ycs0001-algorithms-design-and-analysis-part-2
3. [L0486] 503 https://www.bitdegree.org/courses/coding-for-beginners-space-doggos
4. [L0500] 404 https://itunes.apple.com/us/course/developing-ios-11-apps-with-swift/id1309275316
5. [L0682] 404 https://www.katacoda.com/courses/kubernetes
6. [L0906] 403 https://www.researchgate.net/publication/322222154_An_Introduction_to_Ruby_Programming_Language
7. [L0968] 403 https://online.stanford.edu/courses/soe-ycsautomata-automata-theory

./more/

[ ] more//free-programming-cheatsheets.md

> Links 
1. [L091] 404 https://www.docker.com/sites/default/files/d8/2019-09/docker-cheat-sheet.pdf
2. [L231] 403 https://www.simonwenkel.com/publications/cheatsheets/pdf/cheatsheet_pytorch.pdf

[ ] more//free-programming-interactive-tutorials-en.md

> Links 
1. [L198] 404 http://stack.formidable.com/es6-interactive-guide/#/

[ ] more//problem-sets-competitive-programming.mdd

> Links 
1. [L013]  https://a2oj.com/ Failed to open TCP connection to a2oj.com:443 (Connection timed out - connect(2) for "a2oj.com" port 443) 
2. [L018]  http://coj.uci.cu/ Failed to open TCP connection to coj.uci.cu:80 (getaddrinfo: Name or service not known) 
3. [L031] 522 https://dimikoj.com/
4. [L060] 403 https://picoctf.org/resources
5. [L084]  https://a2oj.com/ps Failed to open TCP connection to a2oj.com:443 (Connection timed out - connect(2) for "a2oj.com" port 443) 
6. [L108] 403 https://www.interviewbit.com/

[ ] more//free-programming-playgrounds.md

> Links 
1. [L080]  https://code.labstack.com/cpp Failed to open TCP connection to code.labstack.com:443 (getaddrinfo: No address associated with hostname) 
2. [L098] 403 https://codepen.io/
3. [L112] 404 https://www.katacoda.com/courses/docker/playground
4. [L124] 403 https://codepen.io/topic/flutter/templates
5. [L168]  https://esfiddle.net/ Failed to open TCP connection to esfiddle.net:443 (Connection refused - connect(2) for "esfiddle.net" port 443) 
6. [L194] 404 https://www.katacoda.com/courses/kubernetes/playground
7. [L293] 522 https://scalafiddle.io/
8. [L334] 522 https://play.vlang.io/

It will be fun :upside_down_face:

EbookFoundation / free-programming-books

Broken links #6942

Latest update: July 18, 2022

./books/

./casts/

./courses/

./more/