{
  "@context":[
    "https://www.w3.org/ns/activitystreams",
    {"Hashtag":"as:Hashtag"}
  ],
  "published":"2022-11-10T22:51:38.071Z",
  "attributedTo":"https://sozial.dezern.at/actors/felix",
  "to":["https://www.w3.org/ns/activitystreams#Public"],
  "cc":["https://sozial.dezern.at/actors/felix/followers"],
  "content":"<h1>How to create a Mastodon Alias on a different domain</h1><p>As I want to have this account available under my \"usual\" handle already used for mail and jabber, I needed some kind of redirection. Other protocols have different methods to find out which server should be contacted to handle \"@domainname.tld\":</p><ul><li>XMPP can use a DNS clue: <code>_xmpp-server._tcp IN SRV 5269 jabber.kro.hn.</code> tells the client to reach out to jabber@kro.hn on port 5269 to reach *@kro.hn accounts</li><li>SMTP also uses (an optional) <a href=\"https://en.wikipedia.org/wiki/MX_record\">DNS record</a></li></ul><p>Mastodon and other fediverse-implentations use the \"webfinger\" URL to obtain details about an account:</p><pre>GET /.well-known/webfinger?resource=acct:felix@kro.hn</pre><p>To create a redirect to ${HERE} there are the following possibilities:</p><ul><li>create static files under a /.well-known/ dir&nbsp;<ul><li>however, this is complicated because of special chars</li><li>they might or might not be urlencoded</li><li>also with uppercase and lowercase this creates too many permutations</li></ul></li><li>install a handler to manage this&nbsp;<ul><li><a href=\"https://www.jwz.org/hacks/mastodon-webfinger.php\">like that</a></li></ul></li><li>redirect to the target domain using a HTTP 301 or 302 redirect<ul><li>not tested, but probably more elegant (only found this after having achieved my goal): <a href=\"https://lukas.zapletalovi.com/2022/11/lightweight-mastodon-instance-gotosocial.html\">using Redirect instead of Rewrite</a></li><li>my solution:<br><code>cat .well-known/.htaccess <br>RewriteEngine On<br>RewriteBase /.well-known/webfinger<br>RewriteCond %{QUERY_STRING} ^resource=acct%3A@?[fF][eE][lL][iI][xX].* [OR]<br>RewriteCond %{QUERY_STRING} ^resource=acct:@?[fF][eE][lL][iI][xX].*<br>RewriteRule ^(.*)$ https://sozial.dezern.at/.well-known/webfinger?resource=acct:felix@sozial.dezern.at [R=301,L] </code>&nbsp;<br>(yes, funnily some requests arrive with an urlencoded colon (:), some without urlencoding)</li></ul></li></ul>",
  "mediaType":"text/html",
  "attachment":[],
  "url":["https://sozial.dezern.at/How-to-create-a-Mastodon-Alias-on-a-different-domain"],
  "type":"Note",
  "id":"https://sozial.dezern.at/objects/FPoBbPKaKEc"
}