Curl ipv6. 通过命令行参数 --ipv4 或 -4 强制使用 ipv4 .

Curl ipv6 Mar 5, 2015 · But reading that functionality description, it seems like -6 is not really needed for a pure IPv6 address; only if one is using curl on a hostname that has an IPv4 and IPv6 address connected to it so it would prefer the IPv6. --dns-ipv6-addr requires that the underlying libcurl was built to support c-ares. 默认情况下，cURL 优先使用 IPv6 协议，如果不可用，则回退到 IPv4。这种优先级设置主要是出于安全性和效率方面的考虑： 安全性： IPv6 提供了比 IPv4 更高级别的安全性，因为它具有更大的地址空间和内置的加密功能。 If --dns-ipv6-addr is provided several times, the last set value is used. [2a01:4ff:f0:e625::1]. Aug 23, 2022 6 min read. The IPv6 hostname must be wrapped in square brackets e. Mar 11, 2025 · 本文详细介绍了 Curl 命令行工具在 IPv6 网络访问中的应用，涵盖了 IPv6 基础知识、Curl 的 IPv6 特性、使用方法、常见问题以及高级技巧。 希望本文能够帮助读者更好地理解和使用 Curl 进行 IPv6 网络访问，为构建未来的互联网贡献一份力量。 Sep 15, 2023 · cURL 的 IPv6/IPv4 优先级. This means that cURL will initiate the HTTPS connection to the IP address and then reply with the correct website when it receives the hostname. Jan 25, 2017 · First, assign your needed IPv6 address on your interface under your /64 block. Aug 23, 2022 · linux 为 cURL 指定 ipv4，ipv6. g. May 24, 2023 · 要使用 curl 进行 IPv6 请求，您可以通过添加 -6 参数来指定 IPv6 地址。. I have a VPS with a /64 IPv6 assigned to it. The --ipv4 and --ipv6 options can specify which address to use when both are available. Jun 24, 2024 · Learn how to use the -4 and -6 options to control which IP version curl uses for its network requests. curl starts by initiating a connect attempt to the first address in the IPv6 list. 通过命令行参数 --ipv4 或 -4 强制使用 ipv4 This is an issue with curl, which has been fixed by the curl people, but many OS distributions package old versions. com See also --dns-interface and --dns-ipv4-addr. If, after two hundred milliseconds curl still tries to connect to IPv6, it starts a second series of attempts over IPv4 in parallel. --dns-servers <addresses> (DNS) Set the list of DNS servers to be used instead # curl 指定 IPv6 或 IPv4 访问. Basically if curl can find an ipv6 address for the domain in your URL, then it'll try to fetch it, and if that fails, curl fails, without falling back on trying the IPv4 address. net. curl "http://[2001:1890:1112:1::20]/" So, for the address you're asking about, try: curl -g "http://[::1]:8080/" However, you may want to run: curl -V and see if IPv6 shows up on the line that says "Features" (the third line, not counting extra lines from word Apr 13, 2025 · cURL allows access to an IP address of a server and supply a hostname, bash-prompt. Just something to note. 1 and --http2. Oct 20, 2014 · curl で利用するSSLを指定してアクセスする; wget で IPv6 アドレスを指定してアクセスする; curlでIPアドレスから国を判別できるサービス; nslookupでIPv6アドレスをひく方法; curlでデータをPOSTする方法 curl connects to a server with IPv6 when a host lookup returns an IPv6 address and fall back to IPv4 if the connection fails. Then you can now use the assigned IPv6 address on curl. Example: curl --dns-ipv6-addr 2a04:4e42::561 https://example. com This option is mutually exclusive with -4, --ipv4. If the connect attempt fails, it moves on to the next address in the list iterating through them all one by one until one works. 例如，以下命令将使用 IPv6 地址向 example. 如果同一个 host 同时解析到 IPv6 和 IPv4 地址，即 IPv4/IPv6 双栈，则 curl 使用参数可指定 IP 协议的版本。-4, --ipv4. If curl is capable of resolving an address to multiple IP versions (which it is if it is IPv6-capable), this option tells curl to resolve names to IPv4 addresses only. May 25, 2020 · 如果目标网站的域名并没有配置IPv6地址，cURL会等待IPv6解析失败之后的超时时间，才会尝试使用IPv4地址来访问。这会增加获取网页内容的延迟，甚至可能超过我们设定的超时限制，导致无法成功获取网页内容。 (since curl 7. 37. Assuming that your interface is in eth0. curl --ipv6 https://example. Jul 2, 2024 · Learn how to use Curl, a versatile command-line tool, with IPv6 addresses on Linux. See also --http1. com 发送 HTTP GET 请求： When libcurl get both IPv4 and IPv6 addresses for a host, and it wants to do HTTP/3 with the host, it proceeds like this: Start an IPv6 QUIC connect attempt, iterate over the IPv6 addresses; After a short delay, start an IPv4 QUIC connect attempt, iterate over the IPv4 addresses. You can slap on a -v too to get to see details from the operation. --json <data> (HTTP) Send the specified JSON data in a POST request to the HTTP server. See examples, benefits, and related options for troubleshooting and testing IPv4 and IPv6 connectivity. See 10 practical examples of retrieving web content, downloading files, setting headers, and more with Curl and IPv6. 0 (May 2014), curl no longer mistakes numerical IPv6 addresses for globbing, making the use of -g in this case no longer necessary) The -d is of course for posting. --json works as a shortcut for passing on these three options: Mar 5, 2015 · From "curl --manual", I found this: curl -g "http://[2001:1890:1112:1::20]/" or. chamzgp qbj wtrbkgj qkobhm qihye npn idh ydgi pbb hfrtpcp