Windows Curl Openssl

# Generate 2048 bit RSA private key (no passphrase) openssl genrsa -out privkey. OpenSSL for Windows Pre-compiled Win32/x64 1. cURL is so useful you will notice that we provide sample cURL commands on the “API Help” tab of the console. I have successfully used OpenSSL (Windows Version) to convert my private key file into a PEM file, and I assume that OpenSSL has the ability to do what I need, but I am in a hurry, and I do not understand OpenSSL nearly enough to attempt this. orig" +++ "b/curl\\lib\\Makefile. No need to compile anything or jump through any hoops, just click a few times and it is installed, leaving you to doing real work. Windows doesn't have this library (at least, outside of the Subsystem for Linux), so on Windows the curl package included the OpenSSL library and associated certificate. Apache™ web server 2. When i try to compile php with. Our objective was to not only port OpenSSH so that it worked well on Windows, but to openly contribute those changes back into the portable version of OpenSSH. We use this copy of Git for all Git related operation. crt to cacert. This was built to make it easier for testing HTTP/2 support in something I was working on and thought it might be useful for others. Requirements: First step is to download the cURL and OpenSSL binaries, and extract it onto your desktop. You can also configure how you communicate what you support via the ssl_cipher_list cURL option (capitalization is a bit different with RCurl but I kinda want you to use the curl package so you’re on your own to translate. cURL is usually built-in to MacOS and Linux environments, but there is no native support for cURL on Windows. CURL, since version 3, is compiled by default with "WinSSL" option and that indeed has no support for certificate files. Open a run-command window by pressing. Or, copy these two files to C:\WINDOWS\system32 folder. 3 or OpenSSL 1. There are two (2) libraries to install and they must be installed before cURL will work with SSL. A Brief History of the Windows Installer for cURL. Of course, if you use one of our Linux VPS Hosting services, you can always contact and ask our expert Linux admins (via chat or ticket) about cURL commands and anything related to cURL. The OpenSSL Project is a collaborative effort to develop a robust, commercial-grade, full-featured, and Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols as well as a full-strength general purpose cryptography library. When you have a self-signed SSL certificate for your on-premises TFS server, make sure to configure the Git we shipped to allow that self-signed SSL certificate. 出现此问题有可能是上传大小限制: 执行如下命令 git config http. If you once used Linux and have since moved to Windows, or if you use both Linux and a Windows machine, you likely miss this little tool but there’s no reason to. Windows users may be in for a sad awakening (I mean you're used to that on a regular basis, so it's cool). openssl (Net), php, php-curl, php-json, php-phar (PHP). Another thing - it seems you are running as root - it should make no diff - but good custom says always use an ordinary user for ordinary tasks. Here are pre-compiled builds of curl for Windows built with OpenSSL, ngttp2, zlib & IPv6 support. Some parts of ClanLib still isnt entirely endian clean, so it will currently only work without problems on the x86 architecture. I used the following sequence of commands. Here is an example: $ curl -k. Windows, Apache 2. This can now be distributed because of the easing of US export controls on encryption. The OpenSSL DLL and EXE files are digitally code signed 'FireDaemon Technologies Limited'. OpenSSL is, by far, the most widely used software library for SSL and TLS implementation protocols. It is independent from static vs dynamic linking whether you run into a buggy SSL code. key 2048 According to the ca. dll" (from the bin folder, the other one than include/ and bin/) - Finally take care to select in Visual studio the same bit size (32 bits / 64 bits) than the version from curl that you downloaded. Downloads page for obtaining the latest curl release for x86 and x64 on Windows. It's ideal for automating regular downloads in your own custom scripts. NET and GRAM. Also, O'Reilly's Network Security with OpenSSL is a good in-depth reference. To ignore any ssl certificate warnings with curl, use the tack k option. pem -signature signature. Delete Video graphics or greatly appreciated. On the downloads page, select the fourth version in the main list ("Download SSH2, SSL, SSPI. s_lient is a tool used to connect, check, list HTTPS, TLS/SSL related information. Primary development occurs inside the OpenBSD source tree with the usual care the project is known for. The POSIX 1003. By default ca-bundle. It was always searching for dynamic, no matter what I was doing, so eventually I did three things that worked for me. Create an account or sign in to comment. Furthermore, TM version is not sure if it is for Windows too as its docs did not explicitly state which platform the openssl is running, it looks like separate Linux machine to convert. 1 Precompiled binaries for Windows; 2 Building libcurl static library for DMD32 Windows. Development. creativecommons. OpenSSL is, by far, the most widely used software library for SSL and TLS implementation protocols. NASM if building libcurl against OpenSSL. If you're using the curl command line tool, you can specify your own CA cert path by setting the environment variable CURL_CA to the path of your choice. 1g (released Apr 07, 2014). orig" +++ "b/curl\\lib\\Makefile. curl will search for a CA cert file named "curl-ca-bundle. 编译平台选择 DLL Debug - DLL OpenSSL. 2 looks missing and, since the AIX loader, once he has found libssl. Installing cURL in Windows to Run cURL Commands Natively is actually quite easy process,a starter might find it difficult. The OpenSSL Project is a collaborative effort to develop a robust, commercial-grade, full-featured, and Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols as well as a full-strength general purpose cryptography library. OpenSSL is an open source library that provides cryptographic protocols used to secure applications and transfer of information between systems. Steps to compile Curl on Windows x64. cURL runs from a command line, as it does not have a user interface, and "system32" is the folder where your computer looks to find basic commands. I agree, this is a HUGE issue with RH/CentOS not updating Curl. sln Select configuration DLL Release - DLL OpenSSL - DLL LibSSH2 For each project change output folder to: c:\dev_gcc\curltut\x64\bin\libcurl. the CURL, SOAP, GMP, LDAP, PDO_SQLITE, OPENSSL, SQLITE3 extensions. CURL command Tutorial in Linux with Example Usage Submitted by Sarath Pillai on Sun, 03/16/2014 - 13:45 Transferring data from one place to another is one of the main task done using computers connected to a network. a way to magically make native Windows apps aware of UNIX® functionality like signals, ptys, etc. i used web platform installer to install php version 5. Note that. This file will let you download GES DISC resources without having to re-login. Hi There, I'm having a problem with mod_xml_curl on Windows (2008 R2) while attempting to curl requests/ responses over HTTPS. I used the following sequence of commands. The OpenSSL DLL and EXE files are digitally code signed 'FireDaemon Technologies Limited'. (Or fixing NSS nickname not specified errors). Security Update for Windows Server 2008 R2 x 64 Edition. Windows doesn’t have this library (at least, outside of the Subsystem for Linux), so on Windows the curl package included the OpenSSL library and associated certificate. If you don't have a Computer icon on your desktop, click Start, right-click the Computer option in the Start menu, and select Properties. Now in the parent directory you should have a new folder called build with the new curl library and application with OpenSSL and Zlib support cross compiled for ARM:. Installing Self Signed Certificates into the OpenSSL framework. GNU Wget (or just Wget, formerly Geturl, also written as its package name, wget) is a computer program that retrieves content from web servers. So this post shows the procedure on Windows. 8 Current Version of cURL: 7. I did get it working using PHP 4 + curl, thanks to your suggestion, but in the end I ended up switching to PHP 5. p7b Note that you can use one or more -certfile options to specify which certificates to add to the PKCS7 file. Primarily built for FireDaemon Fusion, but may be used for any Windows application. An informal list of third party products can be found on the wiki. It was always searching for dynamic, no matter what I was doing, so eventually I did three things that worked for me. crt" in these directories and in this order: Application's directory. In this quick tip tutorial we're looking at how to enable CURL in PHP. Looks like the SSL handshake is failing. This tutorial shows how to access Oracle Messaging Cloud Service via the REST interface, using the cURL command line tool. Apache HTTP Server versions later than 2. If you'd like to turn off curl's verification of the certificate, use the -k (or --insecure) option. I have just upgraded from Ubuntu 16. Please consider my bias towards curl since after all, curl is my baby - but I contribute to Wget as well. Starting the OpenSSL binary on Windows. The OpenSSL developers changed things so that the longstanding DLL names no longer apply. use the built-in FTP client with encryption via SSL/TLS. 2) Still you cannot use this with curl because you’d get a few errors. All openssl asks is that you tell if you want to supply it with a DER instead of a PEM (Base64) certificate. vbs to your C:\ directory. In regards to the comment above: "After generating a key pair with OpenSSL, the public key can be stored in plain text format. Here you can find the current release notes for the Windows version of MAMP & MAMP PRO. Steps to compile Curl on Windows x64. this is how to enable CA root cert bundles for openssl & curl for php on windows. 0 and higher) and older versions (1. I have successfully used OpenSSL (Windows Version) to convert my private key file into a PEM file, and I assume that OpenSSL has the ability to do what I need, but I am in a hurry, and I do not understand OpenSSL nearly enough to attempt this. Some third parties provide OpenSSL compatible engines. Build curl statically on windows. This project offers OpenSSL for Windows (static as well as shared). After it’s installed, you’ll get a warning:. Below are the commands I typed in a completely standard command prompt (cmd. mod_xml_curl VS https on Windows. # Generate 2048 bit RSA private key (no passphrase) openssl genrsa -out privkey. Now in the parent directory you should have a new folder called build with the new curl library and application with OpenSSL and Zlib support cross compiled for ARM:. curl supports SSL certificates, HTTP POST, HTTP PUT, FTP uploading, HTTP form based upload, proxies, cookies, user+password authentication (Basic, Digest, NTLM, Negotiate, kerberos), file transfer resume, proxy tunneling and a busload of other useful tricks. OpenSSL is available as an Open Source equivalent to commercial implementations of SSL via an Apache-style license. [email protected] In this context, it is important to know What is cURL and what are the uses. See libcurl(3) for details. extension_dir = "ext") in the php. Windows 10’s Anniversary Update added support for Linux environments to Windows 10 back in 2016. To use OpenSSL to convert your favourite browser's certificate into a PEM formatted one that curl can use, do something like this (assuming netscape, but IE is likely to work similarly): You start with hitting the 'security' menu button in netscape. curl supports SSL certificates, HTTP POST, HTTP PUT, FTP uploading, HTTP form based upload, proxies, cookies, user+password authentication (Basic, Digest, NTLM, Negotiate, kerberos), file transfer resume, proxy tunneling and a busload of other useful tricks. This project offers OpenSSL for Windows (static as well as shared). crt to cacert. Do not use the web platform installer for any components of your Drupal setup. (Or fixing NSS nickname not specified errors). There are 4 steps to follow to get cURL installed on Windows. Building Darcs under Windows with stack. dat; Duplicate openssl dgst -sha256 -verify pubKey. According to the OpenSSL advisory, "An attacker using a carefully crafted handshake can force the use of weak keying material in OpenSSL SSL/TLS clients and servers. How to download and install a curl executable for Windows. In the latest Windows 10 update, OpenSSH client and server are included as Beta features. tar archive files. NASM if building libcurl against OpenSSL. I then converted all of the line endings of the text files, and arranged all of the HTML manuals in a folder. PHP OpenSSL is provided as a DLL file called php_openssl. I started with the following: 64-bit Windows 7.  If you want to write your own PHP program to communicate with an HTTPS Web server, you should install a PHP module to help you. cainfo and openssl. 1e and Visual. The Win32/Win64 OpenSSL Installation Project is dedicated to providing a simple installation of OpenSSL for Microsoft Windows. The perl shipping with Git for Windows handles forward and backslashes in paths in a way that is incompatible with OpenSSL’s build scripts. I double checked EA4 in WHM and php72-php-curl is installed as it has been (7. sln Select configuration DLL Release - DLL OpenSSL - DLL LibSSH2 For each project change output folder to: c:\dev_gcc\curltut\x64\bin\libcurl. Now you are ready to start creating your OpenSSL keys. For now you can try with a version which was build with OpenSSL libraries. Installing Self Signed Certificates into the OpenSSL framework. I don’t know why the manual doesn’t say this. gz and the instructions to build it on Windows with Visual Studio 2015 are found in the file INSTALL. These are references to various Open Source applications that are using the old SSLeay package or the new OpenSSL package. Run the file from your command line. Here is an example: $ curl -k. i used web platform installer to install php version 5. 필요 사항: Visual Studio (2010 express) OpenSSL (OpenSSL 빌드하기 참조) Zlib (필요시) libSSH(필요시). 3 changelog Packages. crt file from OpenSSL. NET wrapper around a C library. Install Visual C++ 2008 redistributable. If you're using the curl command line tool, you can specify your own CA cert path by setting the environment variable CURL_CA to the path of your choice. However we can keep things working in legacy servers by falling back on OpenSSL on these machines, including the CRAN win builder. When you update your OpenSSL libraries, you must update the php_curl OpenSSL version and not the OS OpenSSL version. cURL + OpenSSL + PHP not working. Property Datatype Description; name: String: An alias or name you have given for your website (defaults to the website domain) status: String: A string indicating whether the website is currently recording (values: NotInstalled, Recording, Stopped, Paused). Reissue your certificate by either generating two new files with the OpenSSL CSR Wizard or by creating a new CSR from your existing private key file using the following command. Key word: Windows, curl, ssl, visual c++ 2005 Time: 2014/2/8 Recently, from the Internet to download a curl library, using a variety of error, is unable to start, then simply directly compile their own. In order to compile it successfully you need to install some tools that will help you compile it: sudo yum install libtool perl-core zlib-devel -y. pem If you’re running Apache on *nix, you’re all set! But if you’re running on Windows (I know, I know), you will need to remove the passphrase from the PEM. To get this you need to install the VC15 version. I don’t know why the manual doesn’t say this. 2 or later is recommended. GNU Wget is a free network utility to retrieve files from the World Wide Web using HTTP and FTP, the two most widely used Internet protocols. Again, you need to build your apps from source if you want to take advantage of Cygwin functionality. 2 are affected by this issue. OpenSSLをWindowsでビルド(32bit/64bit) OpenSSLをWindowsでビルド(32bit/64bit) 投稿日: 2013年11月21. Any idea what might be the problem? Please sign in or create an account to participate in this conversation. The OpenSSL is an open source software and it has various of distribution, you must confirm your distribution version is support running on Windows 2012r2 first, and if you are using Windows built in SSL3. p12 -out myapp. There are two (2) libraries to install and they must be installed before cURL will work with SSL. 2 The docs might be a bit sparse in this ares, yes. creativecommons. OpenSSL is available as an Open Source equivalent to commercial implementations of SSL via an Apache-style license. I have installed " openssl-1. key with 2048bit: openssl genrsa -out ca. If /usr/lib/libssl. Now in the parent directory you should have a new folder called build with the new curl library and application with OpenSSL and Zlib support cross compiled for ARM:. NASM if building libcurl against OpenSSL. How to build cURL static library with SSL support on Windows building cURL with SSL support on Windows. gz and the instructions to build it on Windows with Visual Studio 2015 are found in the file INSTALL. It includes most of the features available on Linux. openssl pkcs12 -in myapp. Also, curl uses openssl for the "https" part - without a CA certificate bundle, curl can not verify the correctness of the certificate chain. -vs2017-x64. This was built to make it easier for testing HTTP/2 support in something I was working on and thought it might be useful for others. CURL, since version 3, is compiled by default with "WinSSL" option and that indeed has no support for certificate files. Build cURL with OpenSSL Integrated on Windows using Visual Studio Kim Thomas. You can also configure how you communicate what you support via the ssl_cipher_list cURL option (capitalization is a bit different with RCurl but I kinda want you to use the curl package so you're on your own to translate. creativecommons. Uhhh, Why Write this Webpage? It's to keep my thoughts straight, and maybe help out the random crazy developer like myself who might be trying to understand this world. I'll be using Wikipedia as an example here. The curl project mostly provides source packages. If you're using the curl command line tool, you can specify your own CA cert path by setting the environment variable CURL_CA to the path of your choice. OpenSSL provides different features and tools for SSL/TLS related operations. I then encrypted the private key itself using regular mcrypt with the human-memorizable key of my choice and converted it to ACSII using base64_encode. Warning: some antivirus tools recognise wget-1. The cURL Manager: cURL for Windows with automatic upgrades and special sftp features. They’re shipped with PHP package, you can find them in PHP root folder. The cURL commands in the following sections will not work with the system curl on OS X Yosemite (10. The Curl Runtime Engine (versions 8. If you once used Linux and have since moved to Windows, or if you use both Linux and a Windows machine, you likely miss this little tool but there's no reason to. Note: Different types of hosting accounts support different components. As you can see www. Preprocess Defintions I added WIN32_LEAN_AND_MEAN, CURL_STATIC_LIB. exe window and type cabal update and cabal install darcs -f-curl. It is also a general-purpose cryptography library. Install wget if necessary. Also, curl uses openssl for the "https" part - without a CA certificate bundle, curl can not verify the correctness of the certificate chain. the project's wbesite: After running the OpenSSL installer, you can run curl from the command line. Also, the content-length is always required in the request and signing string, even if the body is empty. How to install cURL and OpenSSL on Android If the issue is with your Computer or a Laptop you should try using Reimage Plus which can scan the repositories and replace corrupt and missing files. Apache HTTP Server versions later than 2. An often heard solution to PHP cURL errors with SSL is to turn off CURLOPT_SSL_VERIFYPEER. For Windows you will need to choose a pre-compiled using a search like this Details: OpenSSL is used by software developers and it is officially distributed in C source code format. 2 in SLES for SAP 11 SP3, I am already > installed curl-openssl1 and wget-openssl1 using the directions from. 1g 7 Apr 2014 Get a certificate with an OCSP. Before you can use openssl on Netscaler you have to type the command shell to enter the regular freebsd shell. CA root certificate configuration for openssl & curl when via php on windows. Sorry if this is the wrong Topic Area, but I dont know where else to put this!. From D Wiki. I cannot use either of these to authenticate to the web service as curl would not accept these formats. Curl is normally already installed in MacOs, but to be sure it uses OpenSSL, we need to install it using brew: $ brew install curl-openssl Curl is installed keg-only by brew. A quick testing suggests that the site only allows SSL connections using ECDH cipher suites, or one of the AES-GCM ciphers (TLS 1. All openssl asks is that you tell if you want to supply it with a DER instead of a PEM (Base64) certificate. Loading Unsubscribe from Kim Thomas? Cancel Unsubscribe. Here you can find the current release notes for the Windows version of MAMP & MAMP PRO. 0 and higher) and older versions (1. der -outform PEM -out crl. pem path to the variable and save the file. Celestino Laranjeira 6/12/2018 PHP 7, php 7 windows 0 Comentáros Novidade! O PHP 7. Didn't have any luck in that route so tried to use openssl and curl, but still having problem using the REST API. The cURL commands in the following sections will not work with the system curl on OS X Yosemite (10. Hi, We're having problems connecting to an FTP server using FTPS (not sftp), and to diagnose the problem, we've been using cURL with openssl. This was built to make it easier for testing HTTP/2 support in something I was working on and thought it might be useful for others. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. The following six line script will test a given port on a given server for supported versions of TLS, as well as supported ciphers. Warning: some antivirus tools recognise wget-1. I used OpenSSL for SSL capability, libssh2 for SSH, and zlib for compression. Building on Windows with Visual Studio¶ Building on Windows requires Windows Vista or newer and Visual Studio 2010 or newer. It should be reputable enough for our usage. To ignore any ssl certificate warnings with curl, use the tack k option. Curl on Windows. Screenshot of Win32 OpenSSL. This is how I built the static versions of OpenSSL on Windows. curl offers a busload of useful tricks like proxy support, user authentication, FTP upload, HTTP post, SSL connections, cookies, file transfer resume and more. Make sure you have authorized the application from which you are downloading data (see How To Pre-authorize an application). NET Core makes it convenient to develop and test C# code across platforms. Since this approach is OpenSSL-specific there is a procedure for adding own CA root-certificates into your system. 27 追記) Windows 10(64bit)も、同じインストール手順で大丈夫そうでした。. We also maintain a guide for users who must run Nmap on earlier Windows releases. Once unzipped there is a INSTALL. Download for macOS Download for Windows (64bit) Download for macOS or Windows (msi) Download for Windows. 2 Windows 7 64-bit and curl not working side-by-side configuration incorrect for details of the problem together with a fix. From there, just open a cmd. It possibly exists in other curl builds for Windows too that uses OpenSSL. txt of winbuild folder of Curl source path is not appropriate for Windows x64 environment. If all goes well, nobody should not notice any changes, except. [[email protected] iapi. 509 v3 certificates for intermediate CAs. cainfo variable will need to be pointed to 'D:\PHP\cacert. On my current project, this means we can do much of our work on Macs without ever firing up a Windows VM. The non-ephemeral DH modes are currently unimplemented in OpenSSL because there is no support for DH certificates. inc or here Developer Notes. 필요 사항: Visual Studio (2010 express) OpenSSL (OpenSSL 빌드하기 참조) Zlib (필요시) libSSH(필요시). On Linux and Macs, curl has always used the OpenSSL library, which is included on those systems. You can also configure how you communicate what you support via the ssl_cipher_list cURL option (capitalization is a bit different with RCurl but I kinda want you to use the curl package so you’re on your own to translate. It's an open-source, commercial-grade and full-featured toolkit suitable for both personal and enterprise usage. Windows binaries of GNU Wget A command-line utility for retrieving files using HTTP, HTTPS and FTP protocols. The main differences as I (Daniel Stenberg) see them. How to install OpenSSL on Windows Server 2019?, How to use OpenSSL on Windows server 2019?. If you stuck with an older version of goal and need to go the manipulate-the-keys route, here the OpenSSL commands add the bag attributes back in. key with 2048bit: openssl genrsa -out ca. openssl (Net), php, php-curl, php-json, php-phar (PHP). 4 is Windows 2000 or later. The primary Windows platform for running Apache 2. wget for Windows. " Clearly the makefile couldn't find the OpenSSL. In an environment where footprint size is critical or a large cloud environment where memory usage per connection makes a big impact on the performance and success of a project, wolfSSL is an optimal SSL and cryptography solution. It’s suitable for small scripts as well as large applications. pem certificate bundle from the official cURL website. The OpenSSL Project is a collaborative effort to develop a robust, commercial-grade, full-featured, and Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols as well as a full-strength general purpose cryptography library. Restart Note: After you've installed your SSL/TLS certificate and configured the server to use it, you must restart your Nginx instance. Here is an example: $ curl -k. I have installed " openssl-1. Learn how to install OpenSSL on Windows. Connection to that host can not be established with older Red Hat Enterprise Linux 5 openssl packages. cURL is free, open software that runs under various operating systems. cnf Generate a private RSA key. PHP OpenSSL is provided as a DLL file called php_openssl. I don’t know why the manual doesn’t say this. Windows 10 Insider builds & Windows Server now include a beta release of the OpenSSH client and server for you to try! Each are available as independent optional features that you can choose to install if you want to be able to employ SSH from the Windows command-line. CURL is a command line tool which can download files using a wide range of protocols: HTTP, HTTPS, FTP, FTPS, POP3, IMAP, RTMP, RTSP and many more. 1 Source fixed for Visual Studio 2. 1c [64bit/32bit] brotli 1. 2 encourage you to specify your own --prefix. Why can't cURL properly verify a certificate on Windows? When I try to use Curl on windows, You can use certreq. meaning SSLv3 is disabled on the server. this is how to enable CA root cert bundles for openssl & curl for php on windows. 0\projects\Windows\VC15\curl-all. I wanted to curl command to ignore SSL certification warning. For OpenSSL 1. On my current project, this means we can do much of our work on Macs without ever firing up a Windows VM. " All versions of OpenSSL are vulnerable on the client side. Please consider my bias towards curl since after all, curl is my baby - but I contribute to Wget as well. Generate a ca. Requirements. cnf (in the extracted folder in Step 1) in this folder. Hi, We're having problems connecting to an FTP server using FTPS (not sftp), and to diagnose the problem, we've been using cURL with openssl. Installing cURL in Windows to Run cURL Commands Natively is actually quite easy process,a starter might find it difficult. You can generate your private key with or without a passphrase to protect it. This installs openSSL in /usr/local/ssl and will not overwrite the openSSL version already on disk so everything else compiled against the built in version of OpenSSL is still good to go. x, OfficeScan will install and use version 2. OpenSSL to version 1. Windows静态编译libcurl及openssl并配置VS2017开发环境 2018年06月18日 22:06 别叫我龙哥 想用C写一个网页抓取的小工具,上网一查,都说用libcurl比较省事!. file() with better performance, support for encryption (https, ftps), gzip compression, authentication, and other 'libcurl' goodies. We will be using OpenSSL in this article. If this fails, then it is not a Nextcloud issue. All other ssl works fine for this domain. Compiling Curl with OpenSSL on Windows 64bit Instruction at BUILD. To get this you need to install the VC15 version. How to download and install a curl executable for Windows. Make sure you have setup your Earthdata account. when I use curl as instructed by help doc, I always got "curl: (6) Could not resolve host: \". There will be many situations where you have to deal with OpenSSL in various ways, and here I have listed them for you as a handy cheat sheet.