Curl ssl connect error. curl showed error: curl: (35) SSL connect error Issue ended up being t...

Curl ssl connect error. curl showed error: curl: (35) SSL connect error Issue ended up being that our server running the REST API was RHEL 6. In most cases, these issues are caused by missing, outdated, or misconfigured SSL certificates on the server. 0 (possible because of many exploits/vulnerabilities), so it's possible to force specific SSL version by either -2 / --sslv2 or -3 / --sslv3. 3, it confirms that the server and API key are working as expected. , invalid certificates), `SSL_ERROR_SYSCALL` doesn’t point to a single cause—it can stem from network problems, outdated software, misconfigured firewalls, or even server-side issues. com:443 I really can't understand why it happens. Jun 18, 2025 · Since Curl successfully connects using TLS 1. Jul 25, 2017 · I'm hitting my curl on ubuntu terminal and getting this response curl: (35) OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to domain. 1 -> RHEL 6. 4, using curl to access a REST API. Practical solutions for common SSL issues when making secure API requests. Some sites disable support for SSL 3. Sep 26, 2015 · Try using the -k/--insecure parameter. Failed to fetch dynamically imported module: https://www. 6, using a newer version of NSS. $ curl -sku "username:password" "https://www. ai/_nuxt/Rhh3Cl1i. Compare Curl's configurations (e. Thereafter, for https: and other urls it will start the "SSL handshake" where both sides exchange information and the server has to prove that it can be trusted. Apr 22, 2016 · So besides updating your version of curl, if you have control of the server you're connecting to when you get these failures, it would be good to update your software on that side as well. All SSL connections are attempted to be made secure by using the CA certificate bundle installed by default. Problem I saw was on RHEL 6. To solve the problem, I installed a completely new curl version and ran it from the installation folder and it worked. . ) Sort of ironic. When curl says Connected to address port, it means it has established a TCP connection to the server. js Back to Home When using the curl command-line tool to send HTTP requests, you may encounter the error message curl: (35) SSL connect error. I worked around it by adding a -k flag to the call to allow insecure connections. Also -L is worth a try if requested page has moved to a different location. 1 day ago · OpenSearch 3. Understanding and resolving this error is crucial, as it can prevent secure connections to APIs, websites, and cloud services. genspark. Nov 27, 2025 · Unlike more specific SSL errors (e. Jun 25, 2025 · Learn what causes SSL connect errors, how to troubleshoot them in browsers, APIs, and CLI tools, and how to fix issues related to certificate validation. From man page: (SSL) This option explicitly allows curl to perform "insecure" SSL connections and transfers. g. 5 with custom TLS works via browser and curl but ODBC driver fails to connect (no response from server version query) OpenSearch troubleshoot alex189 March 2, 2026, 11:54pm 【文章推薦】在服務器上使用 httpclient 訪問 https 一個網站，發現總是返回 Connnect reset 錯誤，但是使用 curl 命令訪問完全可以。 這個有點奇怪，Connect reset 一般都是網絡原因引起,但curl命令可以訪問，說明網絡沒有問題，權限方面應該也是沒有問題。 SSL and HTTPS issues in Matomo typically appear as cURL errors, archiving failures, plugin download problems, or redirect loops. example Oct 19, 2020 · The problem was with my curl version which for some reason didn't accept the arguments --cert and --key. (Maybe you'll then use SSLv3 and the "bug" of disallowing SSLv2 won't break things anymore. I had the same problem - I was fetching a page from my own site, which was served over HTTPS, but curl was giving the same "SSL certificate problem" message. We help you work out your issues, debug your libcurl applications, use the API, port to new platforms, add new features and more. This guide will walk you through troubleshooting and fixing the curl: (35) SSL connect error effectively. Learn how to fix SSL certificate verification errors in cURL commands. Jan 7, 2026 · Buy commercial curl support. With a team lead by the curl founder Daniel himself. In this article, we explore how to effectively use OpenSSL, curl, and proper TLS configurations to fix SSL connect errors and ensure secure communication across web services. This makes all connections considered "insecure" fail unless -k, --insecure is used. , certificates, protocols used) with your Caché setup to identify discrepancies [1]. ohy chy uxl sgo gys qbv rch wyz bkw kiz tze nct ocu kte hma