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Questions tagged [idn]

An internationalized domain name (IDN) is an Internet domain name that contains at least one label that is displayed in software applications, in whole or in part, in a language-specific script or alphabet, or the Latin alphabet-based characters with diacritics. These writing systems are encoded by computers in multi-byte Unicode. Internationalized domain names are stored in the Domain Name System as ASCII strings using Punycode transcription.

An internationalized domain name (IDN) is an Internet domain name that contains at least one label that is displayed in software applications, in whole or in part, in a language-specific script or alphabet, such as Arabic, Chinese, Cyrillic, Tamil, Hebrew or the Latin alphabet-based characters with diacritics, such as French. These writing systems are encoded by computers in multi-byte Unicode. Internationalized domain names are stored in the Domain Name System as ASCII strings using Punycode transcription.

(From Wikipedia.)

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How can I convert an IDN to Punycode in bash?

What is the easiest way to convert an IDN (such as президент.рф) to Punycode in bash?
Eugene Yarmash
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.htaccess redirect umlaut domain

I am trying to redirect requests from a umlaut domain to another domain. My following code works with ANY other domain, but not umlaut: RewriteCond %{HTTPS} !=on RewriteCond %{HTTP_HOST} ^(www\.)?frankfurter-flöhe\.de/$…
Christian Engel
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IDN domain names on IMAP / POP3

I'm setting up a mailserver solution (Postfix, Dovecot) and I'm wondering about IDN (Internationalized domain name) on the IMAP / POP3 side. Should I use the ASCII-encoded (PUNY / ACE) format for Dovecot user logins or should users rather login with…
dave
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using curl against my IDN doesn't work right; browsers are OK

I've registered www.❺➠.ws, which goes to the same IP as www.naildrivin5.com. curl www.❺➠.ws returns the homepage of www.naildrivin5.com. No problem. I modify apache to use name-based virtual hosts as follows:
davetron5000
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ssl and vhost with æøå

I get an error when trying setting up a subdomain with SSL.. I think it's because the servername isn't typed correct (with the 'ø') in the vhost? Have just moved from a webhosting solution to a dedicated server.. Before migrating to the new server,…
clarkk
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Will international domain names permit "e=mc2.com" as a domain name?

I'm trying to understand the limitations of International Domain names... can someone explain what I can and can't do? Can I register a neat domain name like e=mc2.com? Are any of these symbols permitted: !@#$%^&*()_+?
makerofthings7
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IDN and HTTP_HOST

So, when I want to link my users to a specific page I always use (in PHP): "http://" . $_SERVER["HTTP_HOST"] . "/page.php" to be sure that the link points to the page they're currently surfing (and not one of the server aliases). But with IDN…
Sandman
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Can haproxy use umlaut-domains?

I am hosting several webpages on one server. For Routing, I am using haproxy. Now, one funny user wants an umlaut-domain "supportbär.de". #haproxy.cfg frontend http-in .. acl is_supportbaer hdr_dom(host) -i supportbär use_backend…
Markus Schulte
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libidn.so exists, but a cgi can't find it

I have a Debian 6 server, 64 bits... I checked ldconfig, ldconfig path, symbolic links... , rebooted and so on... but still a cgi can't find libidn.so.11. The package libidn11 is installed (including, just in case, libidn11-dev and…
user119205
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RewriteRule: cannot compile regular expression. Version support?

I'm running an Ubuntu 10.04 LTS, Apache version 2.2.14. On httpd.conf I've a rewrite rule that look like this: RewriteRule (*UTF8)^/users/([^/])([^/]+)/(.*)$ /users/$1/$2/$1$2/$3 [L] The idea is to set directories to internationalized domain…
koby
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Azure app registration not allowing IDN

I'm trying out Azure AD, to allow users to authenticate with their Microsoft account on my website. Oauth2 works fine when the redirect URI is http://localhost:8080/callback, but it fails when I try to enter the "real" IDN URI…
ThePicoNerd
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How can I convert a UNICODE word to an International Domain Name? (and back)

I want to convert a few Unicode words to an International Domain Name, (and back) but can't find a script or other resource to do it on a Windows PC. Does anyone have such a tool?
makerofthings7
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Is the a Postfix milter supporting dkim with IDN and UTF8

I use postfix mailserver with enabled SMTPUTF8 and some IDNs, before I used IDNs I used OpenDKIM, but OpenDKIM crashes if I use the IDN in utf8 form. Then I tried pyopendkim. Then I tried dkimpy-milter, but it just does not sign UTF8 mails. Is there…
Jannes Althoff
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What's needed to send an email from an email address with a non-ascii domain name?

I can set up an email account in software which does not claim to support IDN by using a punycode domain name, but to the recipient that generally appears to come from that same punycode domain. An exception is gmail.com, which decodes the domain…
sh1
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ASCII symbols prohibited in Internationalized Domain Name (IDN)

Could you please provide a proof (e.g. and RFC section) that 7bit ASCII characters (like plain old ASCII space, code 0x20) that were previously illegal are still disallowed in IDNs?
Yury Kartynnik
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