Documentation and ramblings of Daniel Stenberg, founder and lead developer of curl.
Visit daniel.haxx.se → On Hacker News Dec 2010 – Aug 2026
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The protocol that's been called HTTP-over-QUIC for quite some time has now changed name and will officially become HTTP/3. This was triggered by this original suggestion by Mark Nottingham. The QUIC Working Group in the IETF works on creating the QUIC transport protocol. QUIC is a TCP replacement done over UDP…
When Mac OS X first launched they did so without an existing poll function. They later added poll() in Mac OS X 10.3, but we quickly discovered that it was broken (it returned a non-zero value when asked to wait for nothing) so in the curl project we added a check in configure for that … Continue reading poll on mac…
DNS over HTTPS (DOH) is a feature where a client shortcuts the standard native resolver and instead asks a dedicated DOH server to resolve names. Compared to regular unprotected DNS lookups done over UDP or TCP, DOH increases privacy, security and sometimes even performance. It also makes it easy to use a name server…
There is again a pull-request submitted to the curl project to bring support for the Gemini protocol. It seems like a worthwhile effort that I support, even if it is also a lot of work involved and it might take some time before it reaches the state in which it can be merged. A previous … Continue reading The Gemini…
When I started the precursor to the curl project, httpget, back in 1996, I wrote my first URL parser. Back then, the universal address was still called URL: Uniform Resource Locators. That spec was published by the IETF in 1994. The term "URL" was then used as source for inspiration when naming the tool and … Continue…
Next week, Mozilla will release Firefox 57. Also referred to as Firefox Quantum, from the project name we've used for all the work that has been put into making this the most awesome Firefox release ever. This is underscored by the fact that I've gotten mailed release-swag for the first time during my four years ……
The InterPlanetary File System (IPFS) is according to the Wikipedia description: "a protocol, hypermedia and file sharing peer-to-peer network for storing and sharing data in a distributed file system.". It works a little like bittorrent and you typically access content on it using a very long hash in an ipfs:// URL…
libcurl has done internet transfers specified as URLs for a long time, but the URLs you'd tell libcurl to use would always just get parsed and used internally. Applications that pass in URLs to libcurl would of course still very often need to parse URLs, create URLs or otherwise handle them, but libcurl has not ……
At around 06:49 CEST on the morning of August 27 2014, Google deployed an HTTP/2 draft-14 implementation on their front-end servers that handle logins to Google accounts (and possibly others). Those at least take care of all the various login stuff you do with Google, G+, gmail, etc. The little problem with that was…
I attended a TCP/IP Geeks Stockholm meetup yesterday and did a talk about HTTP/2. Below is the slide set, but as usual it might not be entirely self explanatory... HTTP/2 - for TCP/IP Geeks Stockholm from Daniel Stenberg