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{{short description|Free URL data transfer client software}}{{Other uses|Curl (disambiguation)}}{{confused|Curl (programming language)}}{{refimprove|date=November 2010}}{{lowercase title}}

| developer = Contributors to the cURL projectTITLE=HISTORY OF CURL - HOW CURL BECAME LIKE THIS ACCESSDATE=NOVEMBER 17, 2016, Daniel simply adopted an existing command-line open-source tool, httpget, that Brazilian Rafael Sagula had written and recently release version 0.1 of. After a few minor adjustments, it did just what he needed. […] HttpGet 1.0 was released on April 8th 1997 with brand new HTTP proxy support., C programming language>C| operating system = AIX, AmigaOS, BeOS, Chrome NaCl, DOS, DragonFly BSD, FreeBSD, GNU-Darwin, HPUX, Haiku, Hurd, IRIX, Linux, macOS, MiNT, Midnight BSD, Minix, NetBSD, NetWare, Nexenta, OS/2, Open Server, OpenBSD, Plan9, QNX, RISC OS, Solaris, Syllable, Tru64 UNIX, UnixWare, VMS, Windows, z/OS| platform = IA-32, x64| genre = FTP client / HTTP client| license = Free Software: MIT/X derivate license}}cURL (pronounced 'curl'cURL - Frequently Asked Questions) is a computer software project providing a library and command-line tool for transferring data using various protocols. The cURL project produces two products, libcurl and cURL. It was first released in 1997. The name stands for "Client URL".WEB,weblink Origin of the name, Stenberg, Daniel,, en, 2018-04-25, The original author and lead developer is the Swedish developer Daniel Stenberg.WEB,weblink curl, 17 years old today, Stenberg, Daniel, 20 March 2015,, 20 March 2015,


libcurl is a free client-side URL transfer library,WEB, Conversing through the Internet with cURL and libcurl - Using libcurl with C and Python,weblink IBM Developerworks, 12 September 2018, M. Tim, Jones, 8 September 2009, no, 14 April 2015,weblink dmy-all, supporting cookies, DICT, FTP, FTPS, Gopher, HTTP (with HTTP/2 support), HTTP POST, HTTP PUT, HTTP proxy tunneling, HTTPS, IMAP, Kerberos, LDAP, POP3, RTSP, SCP, and SMTP. The library supports the file URI scheme, SFTP, Telnet, TFTP, file transfer resume, FTP uploading, HTTP form-based upload, HTTPS certificates, LDAPS, proxies, and user-plus-password authentication.The libcurl library is portable. It builds and works identically on many platforms, including AIX, AmigaOS, Android, BeOS, BlackBerry Tablet OS and BlackBerry 10,Open Source Components for the Native SDK for BlackBerry Tablet OS OpenVMS, Darwin, DOS, FreeBSD, HP-UX, HURD, iOS, IRIX, Linux, macOS, NetBSD, NetWare, OpenBSD, OS/2, QNX Neutrino, RISC OS, Solaris, Symbian, Tru64, Ultrix, UnixWare, and Windows.The libcurl library is free, thread-safe and IPv6 compatible. Bindings are available for more than 40 languages, including C/C++, Java, PHP and Python.The libcurl library can support axTLS,axTLS GnuTLS, mbed TLS, NSS, QSOSSL on IBM i, SChannel on Windows, Secure Transport on macOS and iOS, SSL/TLS through OpenSSL, and wolfSSL.


cURL is a command-line tool for getting or sending data including files using URL syntax.Since cURL uses libcurl, it supports a range of common network protocols, currently including HTTP, HTTPS, FTP, FTPS, SCP, SFTP, TFTP, LDAP, DAP, DICT, TELNET, FILE, IMAP, POP3, SMTP and RTSP (the last four only in versions newer than 7.20.0 or 9 February 2010).cURL supports HTTPS and performs SSL certificate verification by default when a secure protocol is specified such as HTTPS. When cURL connects to a remote server via HTTPS, it will obtain the remote server certificate, then check against its CA certificate store the validity of the remote server to ensure the remote server is the one it claims to be. Some cURL packages are bundled with CA certificate store file. There are several options to specify a CA certificate such as --cacert and --capath. The --cacert option can be used to specify the location of the CA certificate store file. In the Windows platform, if a CA certificate file is not specified, cURL will look for a CA certificate file name “curl-ca-bundle.crt” in the following order:
  1. Directory where the cURL program is located.
  2. Current working directory.
  3. Windows system directory.
  4. Windows directory.
  5. Directories specified in the %PATH% environment variables.cURL - Protocol docs - SSL Certificate Verification
cURL will return an error message if the remote server is using a self-signed certificate, or if the remote server certificate is not signed by a CA listed in the CA cert file. -k or --insecure option can be used to skip certificate verification. Alternatively, if the remote server is trusted, the remote server CA certificate can be added to the CA certificate store file.

See also



External links

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- content above as imported from Wikipedia
- "cURL" does not exist on GetWiki (yet)
- time: 1:47pm EDT - Mon, Mar 18 2019
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M.R.M. Parrott