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Questions tagged [http]

HTTP (Hypertext Transfer Protocol) is the protocol most commonly used to transfer information around the World Wide Web.

HTTP (Hypertext Transfer Protocol) is a communications protocol used for information transfer on the World Wide Web. It enables a client (e.g. a web browser, crawler, or even a web application) to communicate with a server by sending requests and receiving responses to those requests. Those responses may, but don't have to, contain resources requested by the client, such as HTML pages, images, stylesheets or binary files.

Connection between the client and the server can optionally be secured with the use of the (HTTP Secure) protocol, which encrypts all information transferred, as well as establishes the identity of the server.

Other protocols that HTTP relies on include:

  • Transmission Control Protocol
  • User Datagram Protocol
  • Internet Control Message Protocol

Protocols similar to HTTP include:

  • Post Office Protocol
  • File Transfer Protocol
  • Internet Message Access Protocol
1040 questions
11
votes
4 answers

Large delay when fetching a page from a particular site

I have the following problem: when I retrieve a page from Hackage, I get a large delay (about 30 seconds). Further requests are fast, but if I don't connect to it during a couple of minutes, the problem comes back. What's interesting about this…
Roman Cheplyaka
  • 429
6
votes
2 answers

How to deny a CORS request

When an Access-Control-Allow-Origin HTTP header is missing in the response to a CORS (cross-origin resource sharing) preflight, does it mean: The server does not support CORS? Or, The server denies the access? If the server does not support CORS,…
Link-akro
  • 105
5
votes
2 answers

What is HTTP/0.9 request?

In the Readme of this project, it is proposed to make some kind of http/0.9 request, what does this mean? https://github.com/aiortc/aioquic
user1072004
4
votes
2 answers

Serving http requests with tcpserver

I'm trying to use tcpserver from ucspi-tcp to launch a script that returns a simple web page. My script (hello.lua) is as follows: #!/usr/bin/env lua print([[HTTP/1.1 200 OK Content-Type: text/html My…</div> <div class="grid ai-start jc-space-between fw-wrap"> <div class="grid gs4 fw-wrap tags "> <a href="../../questions/tagged/http" class="post-tag grid--cell" title="show questions tagged 'http'" rel="tag">http</a> </div> <div class="started mt0"> <div class="s-user-card s-user-card"> <time class="s-user-card--time" datetime="asked Feb 22 '11 at 15:26">asked Feb 22 '11 at 15:26</time> <a href="../../users/35365/keith-pimmel" class="s-avatar s-avatar__32 s-user-card--avatar"> <img class="s-avatar--image" src="../../users/profiles/35365.webp" data-jdenticon-width="32" data-jdenticon-height="32" data-jdenticon-value="Keith Pimmel" /> </a> <div class="s-user-card--info"> <a href="../../users/35365/keith-pimmel" class="s-user-card--link">Keith Pimmel</a> <ul class="s-user-card--awards"> <li class="s-user-card--rep" title="reputation score">43</li> </ul> </div> </div> </div> </div> </div> </div> </div> <div class="mln24"> <div class="question-summary" id="question-summary-1099763"> <div class="statscontainer"> <div class="stats"> <div class="vote"> <div class="votes"> <span class="vote-count-post"><strong>3</strong></span> <div class="viewcount">votes</div> </div> </div> <div class="status "> <strong>1</strong> answer </div> </div> </div> <div class="summary"> <h3><a href="../../questions/1099763/http-request-line" class="question-hyperlink">HTTP Request line</a></h3> <div class="excerpt">Learning HTTP from tutorialspoint In the URI section (third method), it says that a request to www.w3.org would open a TCP connection to port 80 and send the following request line/s: GET /pub/WWW/TheProject.html HTTP/1.1 Host: www.w3.org   At…</div> <div class="grid ai-start jc-space-between fw-wrap"> <div class="grid gs4 fw-wrap tags "> <a href="../../questions/tagged/http" class="post-tag grid--cell" title="show questions tagged 'http'" rel="tag">http</a> </div> <div class="started mt0"> <div class="s-user-card s-user-card"> <time class="s-user-card--time" datetime="asked Jul 12 '16 at 05:46">asked Jul 12 '16 at 05:46</time> <a href="../../users/599321/benn" class="s-avatar s-avatar__32 s-user-card--avatar"> <img class="s-avatar--image" src="../../users/profiles/599321.webp" data-jdenticon-width="32" data-jdenticon-height="32" data-jdenticon-value="Benn" /> </a> <div class="s-user-card--info"> <a href="../../users/599321/benn" class="s-user-card--link">Benn</a> <ul class="s-user-card--awards"> <li class="s-user-card--rep" title="reputation score">61</li> </ul> </div> </div> </div> </div> </div> </div> </div> <div class="mln24"> <div class="question-summary" id="question-summary-603031"> <div class="statscontainer"> <div class="stats"> <div class="vote"> <div class="votes"> <span class="vote-count-post"><strong>1</strong></span> <div class="viewcount">vote</div> </div> </div> <div class="status "> <strong>2</strong> answers </div> </div> </div> <div class="summary"> <h3><a href="../../questions/603031/testing-http-pipeline-with-nc-but-got-only-one-response" class="question-hyperlink">Testing HTTP pipeline with nc, but got only one response</a></h3> <div class="excerpt">I'm testing HTTP pipelining with nc, So I've create a input file that contains the following lines, GET / HTTP/1.1 Host: localhost GET / HTTP/1.1 Host: localhost Now I submit it with nc, nc localhost 80 < test But I got only one HTTP response,…</div> <div class="grid ai-start jc-space-between fw-wrap"> <div class="grid gs4 fw-wrap tags "> <a href="../../questions/tagged/http" class="post-tag grid--cell" title="show questions tagged 'http'" rel="tag">http</a> </div> <div class="started mt0"> <div class="s-user-card s-user-card"> <time class="s-user-card--time" datetime="asked Jun 03 '13 at 00:57">asked Jun 03 '13 at 00:57</time> <a href="../../users/73361/daisy" class="s-avatar s-avatar__32 s-user-card--avatar"> <img class="s-avatar--image" src="../../users/profiles/73361.webp" data-jdenticon-width="32" data-jdenticon-height="32" data-jdenticon-value="daisy" /> </a> <div class="s-user-card--info"> <a href="../../users/73361/daisy" class="s-user-card--link">daisy</a> <ul class="s-user-card--awards"> <li class="s-user-card--rep" title="reputation score">1,128</li> </ul> </div> </div> </div> </div> </div> </div> </div> <div class="mln24"> <div class="question-summary" id="question-summary-1816409"> <div class="statscontainer"> <div class="stats"> <div class="vote"> <div class="votes"> <span class="vote-count-post"><strong>1</strong></span> <div class="viewcount">vote</div> </div> </div> <div class="status "> <strong>1</strong> answer </div> </div> </div> <div class="summary"> <h3><a href="../../questions/1816409/how-can-i-find-the-download-link-of-a-file-downloaded-by-an-application" class="question-hyperlink">How can I find the download link of a file downloaded by an application?</a></h3> <div class="excerpt">I have an application, that manages certain text-to-speech voices, installed on my computer, which has the feature to download and install new voices. When installing a new voice, it is downloaded as a zip file to some temporary location, which the…</div> <div class="grid ai-start jc-space-between fw-wrap"> <div class="grid gs4 fw-wrap tags "> <a href="../../questions/tagged/http" class="post-tag grid--cell" title="show questions tagged 'http'" rel="tag">http</a> </div> <div class="started mt0"> <div class="s-user-card s-user-card"> <time class="s-user-card--time" datetime="asked Nov 13 '23 at 03:16">asked Nov 13 '23 at 03:16</time> <a href="../../users/1140774/akse0435" class="s-avatar s-avatar__32 s-user-card--avatar"> <img class="s-avatar--image" src="../../users/profiles/1140774.webp" data-jdenticon-width="32" data-jdenticon-height="32" data-jdenticon-value="akse0435" /> </a> <div class="s-user-card--info"> <a href="../../users/1140774/akse0435" class="s-user-card--link">akse0435</a> <ul class="s-user-card--awards"> <li class="s-user-card--rep" title="reputation score">33</li> </ul> </div> </div> </div> </div> </div> </div> </div> <div class="mln24"> <div class="question-summary" id="question-summary-1555208"> <div class="statscontainer"> <div class="stats"> <div class="vote"> <div class="votes"> <span class="vote-count-post"><strong>1</strong></span> <div class="viewcount">vote</div> </div> </div> <div class="status "> <strong>1</strong> answer </div> </div> </div> <div class="summary"> <h3><a href="../../questions/1555208/how-can-you-get-reqbin-to-post-a-body-to-a-logic-app" class="question-hyperlink">How can you get ReqBin to POST a body to a logic app?</a></h3> <div class="excerpt">How can you get ReqBin to POST a body to a logic app? I'm baffled trying to get ReqBin to actually send a body! It thinks it is, but the logic app doesn't think so. I've checked using Curl that the logic app is working as expected, i.e. it's…</div> <div class="grid ai-start jc-space-between fw-wrap"> <div class="grid gs4 fw-wrap tags "> <a href="../../questions/tagged/http" class="post-tag grid--cell" title="show questions tagged 'http'" rel="tag">http</a> </div> <div class="started mt0"> <div class="s-user-card s-user-card"> <time class="s-user-card--time" datetime="asked May 26 '20 at 13:36">asked May 26 '20 at 13:36</time> <a href="../../users/14035/stevec" class="s-avatar s-avatar__32 s-user-card--avatar"> <img class="s-avatar--image" src="../../users/profiles/14035.webp" data-jdenticon-width="32" data-jdenticon-height="32" data-jdenticon-value="SteveC" /> </a> <div class="s-user-card--info"> <a href="../../users/14035/stevec" class="s-user-card--link">SteveC</a> <ul class="s-user-card--awards"> <li class="s-user-card--rep" title="reputation score">2,154</li> </ul> </div> </div> </div> </div> </div> </div> </div> <div class="mln24"> <div class="question-summary" id="question-summary-952755"> <div class="statscontainer"> <div class="stats"> <div class="vote"> <div class="votes"> <span class="vote-count-post"><strong>0</strong></span> <div class="viewcount">votes</div> </div> </div> <div class="status "> <strong>1</strong> answer </div> </div> </div> <div class="summary"> <h3><a href="../../questions/952755/new-relic-synthetics-strange-http-response-codes-7-20-9999" class="question-hyperlink">new relic synthetics strange http response codes -7,-20, -9999</a></h3> <div class="excerpt">Looking at the synthetics page of the new relic monitoring tool we have in place, I'm seeing unfamiliar http status codes in the http response codes panel, for example -7, -20 and -9999 Is this usual? Anyone know what these would mean/where they…</div> <div class="grid ai-start jc-space-between fw-wrap"> <div class="grid gs4 fw-wrap tags "> <a href="../../questions/tagged/http" class="post-tag grid--cell" title="show questions tagged 'http'" rel="tag">http</a> </div> <div class="started mt0"> <div class="s-user-card s-user-card"> <time class="s-user-card--time" datetime="asked Aug 08 '15 at 06:52">asked Aug 08 '15 at 06:52</time> <a href="../../users/384842/user384842" class="s-avatar s-avatar__32 s-user-card--avatar"> <img class="s-avatar--image" src="../../users/profiles/384842.webp" data-jdenticon-width="32" data-jdenticon-height="32" data-jdenticon-value="user384842" /> </a> <div class="s-user-card--info"> <a href="../../users/384842/user384842" class="s-user-card--link">user384842</a> <ul class="s-user-card--awards"> <li class="s-user-card--rep" title="reputation score">101</li> </ul> </div> </div> </div> </div> </div> </div> </div> <div class="mln24"> <div class="question-summary" id="question-summary-941122"> <div class="statscontainer"> <div class="stats"> <div class="vote"> <div class="votes"> <span class="vote-count-post"><strong>0</strong></span> <div class="viewcount">votes</div> </div> </div> <div class="status answered-accepted"> <strong>1</strong> answer </div> </div> </div> <div class="summary"> <h3><a href="../../questions/941122/is-there-an-easy-way-to-get-the-size-of-a-specific-network-folder" class="question-hyperlink">Is there an easy way to get the size of a specific network folder?</a></h3> <div class="excerpt">This URL: http://sun3d.cs.princeton.edu/data/ has a list of folders that I want to download but I'm not sure what the total size would be before I download them all. Is there an easy way to figure this out? </div> <div class="grid ai-start jc-space-between fw-wrap"> <div class="grid gs4 fw-wrap tags "> <a href="../../questions/tagged/http" class="post-tag grid--cell" title="show questions tagged 'http'" rel="tag">http</a> </div> <div class="started mt0"> <div class="s-user-card s-user-card"> <time class="s-user-card--time" datetime="asked Jul 15 '15 at 20:30">asked Jul 15 '15 at 20:30</time> <a href="../../users/105423/derekhh" class="s-avatar s-avatar__32 s-user-card--avatar"> <img class="s-avatar--image" src="../../users/profiles/105423.webp" data-jdenticon-width="32" data-jdenticon-height="32" data-jdenticon-value="derekhh" /> </a> <div class="s-user-card--info"> <a href="../../users/105423/derekhh" class="s-user-card--link">derekhh</a> <ul class="s-user-card--awards"> <li class="s-user-card--rep" title="reputation score">259</li> </ul> </div> </div> </div> </div> </div> </div> </div> <div class="mln24"> <div class="question-summary" id="question-summary-731175"> <div class="statscontainer"> <div class="stats"> <div class="vote"> <div class="votes"> <span class="vote-count-post"><strong>0</strong></span> <div class="viewcount">votes</div> </div> </div> <div class="status answered-accepted"> <strong>4</strong> answers </div> </div> </div> <div class="summary"> <h3><a href="../../questions/731175/confusion-in-use-of-port-number-and-http" class="question-hyperlink">Confusion in use of port number and http</a></h3> <div class="excerpt">When we make a request a page from a server, the request by default goes to port 80 on the server that is the http server. Why do we then type http before the path of a resource. If the request is going to a http server it must be a http request. </div> <div class="grid ai-start jc-space-between fw-wrap"> <div class="grid gs4 fw-wrap tags "> <a href="../../questions/tagged/http" class="post-tag grid--cell" title="show questions tagged 'http'" rel="tag">http</a> </div> <div class="started mt0"> <div class="s-user-card s-user-card"> <time class="s-user-card--time" datetime="asked Mar 19 '14 at 20:15">asked Mar 19 '14 at 20:15</time> <a href="../../users/281827/user1369975" class="s-avatar s-avatar__32 s-user-card--avatar"> <img class="s-avatar--image" src="../../users/profiles/281827.webp" data-jdenticon-width="32" data-jdenticon-height="32" data-jdenticon-value="user1369975" /> </a> <div class="s-user-card--info"> <a href="../../users/281827/user1369975" class="s-user-card--link">user1369975</a> <ul class="s-user-card--awards"> <li class="s-user-card--rep" title="reputation score">103</li> </ul> </div> </div> </div> </div> </div> </div> </div> <div class="mln24"> <div class="question-summary" id="question-summary-616178"> <div class="statscontainer"> <div class="stats"> <div class="vote"> <div class="votes"> <span class="vote-count-post"><strong>0</strong></span> <div class="viewcount">votes</div> </div> </div> <div class="status "> <strong>2</strong> answers </div> </div> </div> <div class="summary"> <h3><a href="../../questions/616178/why-is-http-used-to-transfer-content-other-than-hypertext" class="question-hyperlink">Why is HTTP used to transfer content other than hypertext?</a></h3> <div class="excerpt">HTTP stands for Hypertext Transfer Protocol, so why is it used to transfer content that isn't hypertext, such as images, JSON, JavaScript, etc? Or does the definition of hypertext include these? I thought hypertext documents were documents that…</div> <div class="grid ai-start jc-space-between fw-wrap"> <div class="grid gs4 fw-wrap tags "> <a href="../../questions/tagged/http" class="post-tag grid--cell" title="show questions tagged 'http'" rel="tag">http</a> </div> <div class="started mt0"> <div class="s-user-card s-user-card"> <time class="s-user-card--time" datetime="asked Jul 06 '13 at 03:46">asked Jul 06 '13 at 03:46</time> <a href="../../users/14515/jonathan" class="s-avatar s-avatar__32 s-user-card--avatar"> <img class="s-avatar--image" src="../../users/profiles/14515.webp" data-jdenticon-width="32" data-jdenticon-height="32" data-jdenticon-value="Jonathan." /> </a> <div class="s-user-card--info"> <a href="../../users/14515/jonathan" class="s-user-card--link">Jonathan.</a> <ul class="s-user-card--awards"> <li class="s-user-card--rep" title="reputation score">2,614</li> </ul> </div> </div> </div> </div> </div> </div> </div> <div class="mln24"> <div class="question-summary" id="question-summary-456418"> <div class="statscontainer"> <div class="stats"> <div class="vote"> <div class="votes"> <span class="vote-count-post"><strong>0</strong></span> <div class="viewcount">votes</div> </div> </div> <div class="status "> <strong>1</strong> answer </div> </div> </div> <div class="summary"> <h3><a href="../../questions/456418/re-enabling-http-services-on-my-modem" class="question-hyperlink">Re-Enabling HTTP services on my modem</a></h3> <div class="excerpt">On my modem configuration page provided by my ISP (address 192.168.1.1), I disabled the HTTP services. Now I'm not able to connect to the config page since HTTP has been disabled. How do I re enable it? Thanks. </div> <div class="grid ai-start jc-space-between fw-wrap"> <div class="grid gs4 fw-wrap tags "> <a href="../../questions/tagged/http" class="post-tag grid--cell" title="show questions tagged 'http'" rel="tag">http</a> </div> <div class="started mt0"> <div class="s-user-card s-user-card"> <time class="s-user-card--time" datetime="asked Aug 01 '12 at 19:19">asked Aug 01 '12 at 19:19</time> <a href="../../users/82016/amal-antony" class="s-avatar s-avatar__32 s-user-card--avatar"> <img class="s-avatar--image" src="../../users/profiles/82016.webp" data-jdenticon-width="32" data-jdenticon-height="32" data-jdenticon-value="amal antony" /> </a> <div class="s-user-card--info"> <a href="../../users/82016/amal-antony" class="s-user-card--link">amal antony</a> <ul class="s-user-card--awards"> <li class="s-user-card--rep" title="reputation score">157</li> </ul> </div> </div> </div> </div> </div> </div> </div> <div class="mln24"> <div class="question-summary" id="question-summary-1768577"> <div class="statscontainer"> <div class="stats"> <div class="vote"> <div class="votes"> <span class="vote-count-post"><strong>0</strong></span> <div class="viewcount">votes</div> </div> </div> <div class="status "> <strong>1</strong> answer </div> </div> </div> <div class="summary"> <h3><a href="../../questions/1768577/how-can-i-download-all-files-folders-from-website-directory-list" class="question-hyperlink">How can i download all files,folders from website directory list</a></h3> <div class="excerpt">In actual this is the website address which hover when i place my mouse icon on a particular file name(A-1234)from the list of…</div> <div class="grid ai-start jc-space-between fw-wrap"> <div class="grid gs4 fw-wrap tags "> <a href="../../questions/tagged/http" class="post-tag grid--cell" title="show questions tagged 'http'" rel="tag">http</a> </div> <div class="started mt0"> <div class="s-user-card s-user-card"> <time class="s-user-card--time" datetime="asked Feb 14 '23 at 11:24">asked Feb 14 '23 at 11:24</time> <a href="../../users/1773059/mohammed-sohail" class="s-avatar s-avatar__32 s-user-card--avatar"> <img class="s-avatar--image" src="../../users/profiles/1773059.webp" data-jdenticon-width="32" data-jdenticon-height="32" data-jdenticon-value="Mohammed Sohail" /> </a> <div class="s-user-card--info"> <a href="../../users/1773059/mohammed-sohail" class="s-user-card--link">Mohammed Sohail</a> <ul class="s-user-card--awards"> <li class="s-user-card--rep" title="reputation score">1</li> </ul> </div> </div> </div> </div> </div> </div> </div> <div class="mln24"> <div class="question-summary" id="question-summary-1375494"> <div class="statscontainer"> <div class="stats"> <div class="vote"> <div class="votes"> <span class="vote-count-post"><strong>0</strong></span> <div class="viewcount">votes</div> </div> </div> <div class="status "> <strong>1</strong> answer </div> </div> </div> <div class="summary"> <h3><a href="../../questions/1375494/odd-requests-in-the-http-server-access-log" class="question-hyperlink">Odd requests in the http server access log</a></h3> <div class="excerpt">I switched to Nnginx from Apache, and took a look at the access logs. There are some requests scanning for phpMyAdmin etc, but I was surprised to find requests for weird sites. For example: 156.201.91.152 - - [14/Nov/2018:23:43:14 +0100] "GET…</div> <div class="grid ai-start jc-space-between fw-wrap"> <div class="grid gs4 fw-wrap tags "> <a href="../../questions/tagged/http" class="post-tag grid--cell" title="show questions tagged 'http'" rel="tag">http</a> </div> <div class="started mt0"> <div class="s-user-card s-user-card"> <time class="s-user-card--time" datetime="asked Nov 14 '18 at 23:09">asked Nov 14 '18 at 23:09</time> <a href="../../users/25100/luntain" class="s-avatar s-avatar__32 s-user-card--avatar"> <img class="s-avatar--image" src="../../users/profiles/25100.webp" data-jdenticon-width="32" data-jdenticon-height="32" data-jdenticon-value="luntain" /> </a> <div class="s-user-card--info"> <a href="../../users/25100/luntain" class="s-user-card--link">luntain</a> <ul class="s-user-card--awards"> <li class="s-user-card--rep" title="reputation score">391</li> </ul> </div> </div> </div> </div> </div> </div> </div> <div class="s-pagination pager fr"> <div class="s-pagination--item is-selected">1</div> <a class="s-pagination--item" href="../../questions/tagged/http_page=2" rel="" title="Go to page 2">2</a> <a class="s-pagination--item" href="../../questions/tagged/http_page=2" rel="next" title="Go to page 2"> Next</a> </div> </div> </div> </div> </div> <script src="../../static/js/stack-icons.js"></script> <script src="../../static/js/fromnow.js"></script> </body> </html>