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Text of the page (random words):
o problems using https 23 are there currently problems with the servers or network 24 i have a problem not on this list where do i go toggle i have a problem not on this list where do i go subsection 24 1 i want to merge my multiple user accounts into one where do i go 25 references toggle the table of contents wikipedia faq technical 25 languages العربية অসমীয়া تۆرکجه български বাংলা нохчийн deutsch español euskara فارسی français हिन्दी bahasa indonesia 日本語 한국어 lëtzebuergesch mirandés ଓଡ଼ିଆ português русский සිංහල српски srpski తెలుగు türkçe 中文 edit links project page talk english read edit view history tools tools move to sidebar hide actions read edit view history general what links here related changes upload file permanent link page information get shortened url switch to legacy parser print export download as pdf printable version in other projects wikidata item appearance move to sidebar hide from wikipedia the free encyclopedia wikipedia faq help faqs technical technical faq frequently asked questions faqs index of faqs main faq overview readers schools contributing editing featured articles administrators blocks technical problems article subjects categories categorization copyright forking templates main page miscellaneous shortcut wp tfaq wp tfaq this faq answers some questions related to the technical workings of wikipedia including software and hardware note if you re trying to get help for a specific technical problem that isn t answered by the faqs read wikipedia troubleshooting or ask question at the technical village pump what happens if two or more people are editing the same page edit when the second person and later people attempts to save the page mediawiki will attempt to merge their changes into the current version of the text if the merge fails the user will receive an edit conflict message and the opportunity to merge their changes manually if multiple consecutive conflicts are noticed it will generate a slightly different message see help edit conflict for more information how do i recover a password i have forgotten edit if you entered your e mail address when you signed up you can have a new password generated click on the log in link in the upper right corner follow the link near the bottom of the page titled forgot your password on the reset password page which loads enter either your username or your email address the one you associated with the username and select the reset password button you should receive an e mail message with a new random password you can use it to log in you will then be presented with the opportunity to change your password to something you ll remember if however you did not enter an e mail address you cannot recover your account simply create a new account and declare that you had a previous account how do i change my password edit you can change your password via special changepassword you can also find a link to this in your preferences how do i report a bug edit the developers use the phabricator bug tracking tool to keep track of bugs anybody is welcome to create an account there and report any bugs they encounter however if you prefer you can post about your bug at the technical village pump for more information see bug reports how do i suggest a new feature edit to make an official feature request use phabricator what software is used to run wikipedia edit wikipedia currently runs on mediawiki created by lee daniel crocker and written in php 7 we adopted this software in july 2002 wikipedia originally ran on usemodwiki a general wiki script by clifford adams written in perl in january 2002 we switched to the phase ii software written by magnus manske in php database backend mariadb frontend and caching apache traffic server ats and vinyl cache formerly varnish application server apache http server domain name service gdnsd search lucene based elasticsearch see special version for software versions the wikipedia servers operating system is linux using a debian linux distribution formerly it was ubuntu for details see wikimedia servers how about the hardware edit current situation edit see m wikimedia servers history of wikipedia hardware edit a brief history of wikipedia servers phase i january 2001 january 2002 one of bomis s servers hosted all wikipedia wikis running on usemodwiki software phase ii january 2002 july 2002 one of bomis s servers hosted all wikipedia wikis english and meta running on the php mysql based new software all other languages on usemodwiki runs both the database and the web server on one machine phase iiia july 2002 may 2003 wikipedia gets own server running english wikipedia and after a bit meta with rewritten php software runs both the database and the web server on one machine one of bomis s servers continues to host some of the other languages on usemodwiki but most of the active ones are gradually moved over to the other server during this period phase iiib may 2003 feb 2004 wikipedia s server is given the code name pliny it serves the database for all phase 3 wikis and the web for all but english new server code name larousse serves the web pages for the english wikipedia only plans to move all languages web serving to this machine are put on hold until load is brought down with more efficient software or larousse is upgraded to be faster one of bomis s servers continued to host some of the other languages on usemodwiki until it died all are now hosted on pliny a few more of the active ones have been gradually moved over to the new software and an eventual complete conversion is planned phase iiic feb 2004 to present wikipedia gets a whole new set of servers paid for through donations to the wikimedia foundation the new architecture has a new database server suda with a set of separate systems running apache as well as squids that cache results to reduce the load more details are at m wikimedia servers new servers bought as needed bringing total number to about 350 servers how about the connection edit wikimedia foundation has multiple facilities spread out worldwide served by different bandwidth suppliers see the wikipedia statistics page for information about bandwidth usage how big is the database edit parts of this wikipedia page those related to this section need to be updated please help update this wikipedia page to reflect recent events or newly available information relevant discussion may be found on the talk page november 2022 as of 2012 the combined size of the databases being backed up was between 4 and 6 tb for the copies of the primary database and perhaps 27 tb for the images and media based on wikitech backup procedures early in wikipedia s history in february 2003 the database was about 4 gb in size by april 2004 it was growing at about 1 to 1 4 gb per week and by october 2004 it had grown to about 170 gb uploaded files took up approximately 372 gigabytes lc update excluding thumbnails for current information see wikitech backup procedures compressed database dumps can be downloaded at https dumps wikimedia org what kind of markup language does wikipedia use edit wikipedia uses wikitext why not use html edit the short answer is for simplicity and security and now the longer answer wikipedia and wikis in general are meant to be edited on the fly html is not easy to use when you simply want to write an article creating links gives us a particularly dramatic example to link to the paris article using html one would have to type a href wiki paris paris a using mediawiki markup is much easier paris a special markup language even allows you to transclude special snippets of code called templates into wiki pages you can also substitute the code for that template effectively copying and pasting it into the document then there s security different web browsers have bugs that can be exploited via html malicious users could also do things like javascript popup windows or page redirects if they had full html ability on wikipedia several experimental sites that allowed full html editing have suffered such attacks including a couple of other wikis that allowed arbitrary html so we can t use any html edit that s not true certain html tags work namely the ones in this list it s still best not to rely on using html directly because support for these tags is not always guaranteed to remain they might affect the results achieved with visualeditor and if you can achieve your needed effect using only wikitext markup you re most likely to get a result that is stable when the mediawiki software is updated what about non ascii characters and special symbols edit wikipedia uses unicode specifically utf 8 and most browsers can handle it font issues mean that more obscure characters may not work for many users see the meta help special characters page for a detailed discussion of what is generally safe and what isn t see http www unicode org help display_problems html for instructions on how to enable unicode support for most platforms what about math topics which require many special symbols fonts and graphics edit just use tex see help displaying a formula is it possible to download the contents of wikipedia edit yes the complete text and editing history of all wikipedia pages can be downloaded wikipedia database download you can also get wikipedia content via apis check out wikimedia developer portal wikimedia apis and wikimedia enterprise note that downloading the database dumps or using the apis is much preferred over trying to spider the site spidering the site will take you much longer and it puts a lot of load on the server especially if you ignore our robots txt and spider over billions of combinations of diffs and whatnot heavy spidering can lead to your spider or your ip being barred with prejudice from access to the site please see robot policy and user agent policy is there a library to query wikipedia in my programming language edit generally speaking yes client code is available in many languages see here for a non exhaustive list see also the api documentation and our bot tutorial does wikipedia use cookies edit cookies are not required to read wikipedia but they are required in order to log in and link your edits to a user account when you log in the wiki will set a temporary session cookie which identifies your login session this will be expired when your browser exits or after an inactivity timeout and is not saved on your hard drive another cookie will be saved which lists the user name you last logged in under to make subsequent logins just a teensy bit easier actually two one with your name and one with your account s internal id number they must match up these cookies expire after 365 days if this worries you clear your cookies after completing your session if you check the remember my password box on the login form another cookie will be saved with a token that authenticates you to our servers which is unrelated to your password as long as this remains valid you can bypass the login step on subsequent visits to the wiki the cookie expires after 365 days or is removed if you log out if this worries you don t use the option you should not use it on a public terminal see the cookie statement linked at the bottom of each page for other details why was i automatically logged out edit this could be a result of your cookie browser cache or firewall internet security settings or to quote tim starling referring to a question about remembering password across sessions the kind of session isn t a network session strictly speaking it s an http session managed by php s session handling functions this kind of session works by setting a cookie just like the remember password feature the difference is that the session cookie has the discard attribute set which means that it is discarded when you close your browser this is done to prevent others from using your account after you have left the computer the other difference is that php sessions store the user id and other such information on the server side only a session key is sent to the user the remember password feature stores all required authentication information in the cookie itself on our servers the session information is stored in memcached a system for non durable unreliable caching session information may occasionally be lost or go missing temporarily causing users to be logged out the simplest workaround for this is to use the remember password feature as long as you are not worried about other people using the same computer wikipedia village pump technical on may 4 2005 italics added in other words click the remember me box when logging in see also help logging in the software that runs wikipedia is great can i use it for my site edit you can but depending on your needs you might be better served using something else mediawiki is big and complex first see wiki software for a list of alternative wiki software if after scanning you re still sure you want to use mediawiki see the mediawiki web site for details on downloading installing and configuring the software is the random article feature really random edit no although it s random enough to provide a small sample of articles reliably in the wikipedia database each page is assigned a random index which is a pseudorandom floating point number uniformly distributed between 0 inclusive and 1 exclusive the random article feature special random chooses a pseudorandom double precision floating point number and returns the next article whose random index is greater than the selected random number some articles will have a larger gap before them in the random index space and so will be more likely to be selected so the actual probability of any given article being selected is in fact itself randomized the pseudorandom index value for new articles and the pseudorandom value used by special random is selected by reading two 31 bit words from a mersenne twister which is seeded at each request by php s initialisation code using a high resolution timer and the pid the words are combined using mt_rand max mt_rand max max some old articles had their page_random value reset using mysql s rand rand_st seed1 rand_st seed1 3 rand_st seed2 rand_st max_value rand_st seed2 rand_st seed1 rand_st seed2 33 rand_st max_value return double rand_st seed1 rand_st max_value_dbl due to a bug many pages created in 2004 and 2005 used to have non random page_random values this was corrected in 2018 are page hit counters available edit yes page information under tools in the desktop sidebar shows page views in the past 30 days with a link to a simple graph there is an advanced pageviews analysis tool maintained by the wikimedia foundation which allows you to view hit counts for one page or for multiple pages concurrently additionally the weekly top 25 report provides a list of the 25 most popular articles with commentary in the last week can i access wikipedia via http due to problems using https edit no in 2015 the wikimedia foundation de...