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Questions[encoding](server)

Martin Hope
Henry
Asked: 2021-07-01 13:09:34 +0800 CST
  • 7

A lot of domains hosted by Namecheap contain strange DNS TXT records that appear to be base64 encoded, that when decoded look like a weird kind of MX record - having the structure of both a priority and then a domain. What are these for? There does not appear to be any documentation anywhere regarding these. There are tens of thousands of examples of these, yet there is no clear purpose or documentation. Does anyone know what these are used for?

Some examples:

  • everythingforsight.org. has a TXT record of MAltYWlsLmV2ZXJ5dGhpbmdmb3JzaWdodC5vcmcuCg== which decodes to 0 mail.everythingforsight.org.
  • 1eyeworks.com. has a TXT record of MAltYWlsLjFleWV3b3Jrcy5jb20uCg== which decodes to 0 mail.1eyeworks.com.
domain-name-system email mx-record txt-record encoding
Martin Hope
jdev
Asked: 2012-05-05 12:53:55 +0800 CST
  • 10

I'm looking to encode an input string to base32 encoding directly from the shell. I'm looking to do this in ubuntu, but I imagine flavor doesn't particularly matter here.

Are there any existing linux/unix tools out there to simply do this?

Something along the lines of:

-bash-3.2$ echo -n 'hello' | base32
linux ubuntu unix shell encoding
Martin Hope
sente
Asked: 2012-04-11 20:35:03 +0800 CST
  • 10

I'd like to be able to render the characters as seen in this tweet:

enter image description here

I saved the tweet's JSON data and wrote a one-liner python script for testing.

python -c 'import json,urllib; print json.load(urllib.urlopen("http://c.sente.cc/BUCq/tweet.json"))["text"]'

This next image shows the output of this command on two different putty sessions, one with Bitstream Vera Sans Mono font and the other is using Courier New:

enter image description here

Next is an example of correct output (I wasn't using PuTTY):

Correct Unicode Output

The original JSON is at this link using Twitter's API.

How can I get PuTTY to display those characters?

putty utf-8 encoding unicode
Martin Hope
chiborg
Asked: 2011-10-08 01:09:13 +0800 CST
  • 8

On my Linux development system I use fakemail to write mails to a directory instead of sending them. The mail files contain the headers and the text of the mail as quoted-printable, text/plain in UTF-8. How can I read a single mail file and "decode" the quoted-printable so line breaks and special chars show up correctly?

Here is an example of a German mail file with line breaks and special chars:

Message-ID: <[email protected]>
Date: Fri, 07 Oct 2011 10:53:26 +0200
Subject: Registrierung
From: [email protected]
To: [email protected]
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable

Hallo,

Sie haben sich auf Meinserver.de als Benutzer regist=
riert. Um Ihre
Registrierung abzuschlie=C3=9Fen, klicken Sie auf folg=
enden Link:

http://meinserver.de/benutzer/bestaetigen/3lk6lp=
ga1kcgcg484kc8ksg

I want the special chars to be replaced with their proper counterparts and the line breaks inserted by the quoted-printable encoding (the ones with a "=" at the end) removed.

linux email encoding
Martin Hope
Selivanov Pavel
Asked: 2011-10-07 05:58:38 +0800 CST
  • 12

I have Mercurial repositories running on Apache with mod_wsgi. Repositories have all filenames encoded in windows-1251. This encoding is used for historically reasons: they were converted to mercurial from svn, windows-1251 is default windows encoding for russian locale.

Now programmers want to use Crucible tool for code review. It can't undersand filenames in any other encoding than utf-8. So I need to convert them from windows-1251 to utf-8. Does anyone know how to do this? Mercurial convert extension doesn't have options to convert encodings.

hgweb.config:

[web]
#encoding = UTF-8
encoding = windows-1251
#allow_archive = gz, zip, bz2
allow_archive = zip
allow_push = *
push_ssl = false

[extensions]

[collections]
/data/mercurial = /data/mercurial
mercurial encoding crucible