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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

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RFC 5322 - Regex for validating email allowing a non-valid top level domain

I'm using RFC 5322's simplified regular expression in my application to validate any kind of possible email…
undefined is our god
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Compiling complex (with many references) ASN schema - Certificate Request Format ( RFC4211)

What I want to do is have my own routine (CPP preffered) that can create a Certificate Request Message as in RFC4211. I understand that the way of doing this is first of all getting an ASN module description, then compile it to get the code that I…
octav
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Twitter HTTP Status code with their custom codes

Twitter uses an Error Code message system with their API: https://dev.twitter.com/overview/api/response-codes Look under "Error Codes." I am wondering what HTTP Status code they use for ones that do not correspond to an HTTP status code, for example…
aaron-coding
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Should I sign X headers in DKIM?

I'm using Postfix + OpenDKIM to send emails. Should I sign X headers (X-Confirm-Reading-To, X-Unsubscribe, X-Priority, etc) in DKIM? DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=mydomain.com; s=mail; t=1435840997; …
happy_marmoset
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Allow plus + sign in URL

I am writing a GET calculator for my website. This calculator calculates expressions provided in the exp parameter of the URL. I know its against RFC but is there any way I can allow + sign in URL? One way I found was to provide a documentation to…
Aishwarya Shiva
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Implementing FTP protocol according to RFC 959

First this isn't an assignment or for employment. I want to be a better/more secure programmer. I have read RFC 959, I am at a loss as to how you actually use this to make a program that is compliant. Do I just send the commands as strings and make…
Jeremy
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Sending H264 video in RTP packets compliant with RFC 3984 and RFC 3550

I'm trying to understand how RFC3984 works with RFC3550. I noticed that there is an extension bit in RFC3550 that you can set to extend the header. Do I need to set this bit high and then include the optional header extension? Would this be done by…
Shaun
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How to serialize ID command and parameter list described in rfc2971 IMAP ID extension

Example: C: a023 ID ("name" "sodr" "version" "19.34" "vendor" "Pink Floyd Music Limited") S: * ID NIL S: a023 OK ID completed When I send the command and parameters via socket to server, how to serialize such things: ("name" "sodr" "version"…
http8086
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HTTP Header User-Agent Field Format Required?

I could not find anything in the RFC docs about whether the User-Agent field needed to be formatted the way it commonly is. For example, could I just do: User-Agent: Mozilla windows NT and still pass a valid request?
jeffrey
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What is the minimum set of required protocols for VoIP calls?

I've been reading about Voice Over IP and it's still not clear to me which protocols (i.e. RFCs) you have to implement to support audio calls between two IP-endpoints where the two endpoints might not reside on the same network. So far I understand…
user1884325
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POP3 Authentication

I am trying to write a simple POP3 server and I have a problem with authentication. I run the server and try to connect to it with help of Icedove. When the client connects to the server, the following occurs: Server:+OK POP3 server…
user2674414
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How to Sort on rfc 822 timestamp format field in mongodb?

My aim is sort rfc 822 timestamp format which is stored in Mongodb as a pubdate field . I do not want to fetch all the records using PHP/Python and sort using it as lot of records will be required to be placed on memory. I am putting down an example…
user3136348
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How to differentiate a link from text?

I have lines of text and I have to find whether these lines contain some link . how can I do it?Firstly I thought of finding www in the text but some links might not have www . Secondly I thought of finding http in text but again all links do not…
cooljohny
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Can I use leading zero in case of day in the Date field in SMTP

Can I use leading zero in case of day in the Date field in SMTP? I mean smth like 03 Apr 2014 13:10:22 +0000 Can you quote RFC, please?
FrozenHeart
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Some questions about SMTP RFC

I have two questions about SMTP RFC: What value should I pass as the argument for the EHLO command if I don't have my own domain name? The domain name given in the EHLO command MUST be either a primary host name (a domain name that…
FrozenHeart
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