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Questions tagged [rfc]

An RFC is a "Request For Comments": the form of internet standards from the Internet Engineering Task Force (IETF) until they are made standards. And the usual form of reference to those standards.

An RFC is a "Request For Comments": the form of internet standards from the Internet Engineering Taskforce (IETF) until they are made standards. And the usual form of reference to those standards.

Official Site: http://www.ietf.org/rfc.html

590 questions
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DNS Name compression for index > 16383

The DNS Name compression specification (section 4.1.4) the 16-bit pointer contains a 14-bit OFFSET field that "specifies an offset from the start of the message" in place of a label. This allows pointers to reference labels within the first 16383…
TallChuck
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Should NLST FTP command return records with or without absolute paths?

in my Java project I am using Apache FTP Client to download some data from FTP server. On production there is running some FTP server on Linux which returns files with abosulte paths when using NLST. So my response for NLST /home might be e.g.…
Jan Zyka
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What is the format of HTTP 1.1 header values?

I read the rfc7230 section 3.2. After removing obsolete rules, the spec about header field is: header-field = field-name ":" OWS field-value OWS field-name = token field-value = *field-content field-content = field-vchar [ 1*( SP / HTAB )…
martixingwei
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Why is it so important for CR and LF to appear together in Email?

From http://www.faqs.org/rfcs/rfc2822.html: CR and LF MUST only occur together as CRLF; they MUST NOT appear independently in the body. We have a web service that sends out confirmation emails, but one of our users pointed out that this does…
user19471
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RFCs for implementing HTTP server

I'm thinking to start a side project to learn how HTTP servers are built. I started searching for it and came to know that the specifications are mentioned in RFC documents. But there are over 8200 RFCs as of August 2017. Further searching about it…
SkrewEverything
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What RFCs need to be considered in developing a POP3 client?

In theory, the set of Request For Comments (RFC) contain everything that a developer needs to know to build a POP3 client. However, it is not always easy to know which RFCs need to be considered and which ones can be ignored. Does anyone have an RFC…
Mike Green
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RFC 8058 (email unsubscribe) custom implementation not working on gmail

Gmail suggest email lists to implement RFC 8058: https://support.google.com/mail/answer/81126?hl=en I'm just testing my implementation and Gmail didn't work for it - it didn't offer Unsubscribe button. Gmail is supposed to support https unsubscribe…
Mladen Adamovic
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Does JSON 'officially' Support Conversion of Native Types?

In PHP, you can use json_encode to encode an object as a json string. $string = json_encode($some_object); However, PHP has the standard slew of datatypes which are not considered objects (ints, strings, etc.) If you pass in a string to…
Alana Storm
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REST: correct response status according RFC 2616 HTTP/1.1 spec?

I have skimmed over the HTTP/1.1 protocol spec at RFC-2616 and I am trying to understand which status code should be returned when a particular REST method is invoked. As far as I have studied the protocol (links), I tried to parse REST methods to…
Nikolas Charalambidis
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url scheme for ssh: Calling command on remote host

Is there an url scheme for calling a command on a remote host via ssh? In my use case I want to call this: psql -c "select * from my_table order by id;" There seams to be a RFC for the connection paramters. Example: from…
guettli
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How to resolve a conflict between RFCs?

RFC 4034 and RFC 6762 appear to contradict one another. RFC 4034 states the following: A sender MUST NOT use DNS name compression on the Next Domain Name field when transmitting an NSEC RR. * emphasis mine RFC 6762 states the following: All…
Nathan Osman
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Can HTTP servers produce responses while consuming the request?

Consider an http server that reflects the body of a request into the response. In pseudocode: recv_req_headers() send_resp_headers() while have_req_body_data: chunk = recv_req_body_chunk() send_resp_body_chunk(chunk) Similarly, consider an…
avakar
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Is there a line-linkable version of RFCs?

For example, if I want to reference an example of multipart form data in RFC 2046, the best I can do as far as I can see is to write something like this to the docs: Go to https://www.rfc-editor.org/rfc/rfc2046#section-5.1.1, scroll to page 20,…
Borek Bernard
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How to validate mime type RFC 1521 sytnax in java?

Is there any standard framework to validate media type RFC 1521 syntax in Java? So the type / subtype should be checked for syntax, allowing also application/vnd-.. standard extensions and any free application-specific definitions. I would like to…
Mick Belker - Pseudonym
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Digest md5 response generation

How to generate response field in client response for DIGEST MD5 challenge, I'am currently using rfc 2831 for reference Challenge from server as per rfc 2831 example is:…
Kshitij Patil
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