Why can my server not serve Thai font webpages?  I moved a site that
uses thai to my server from a different one.  It is the exact same
html.  Before if you visit the site, IE can detect the thai font and
switch automatically.  On my server you have to manually change it in
the browser encoding.  PhpMyadmin works in thai on my server as well
as horde imp. I have tried all of the charsets, charset=windows-874,
iso-8895-11, utf-8 etc... nothing works. Even tried adding it in
.htaccess with no joy.  What is the problem?

The problem is that, as well as the HTML code you can see, language is
defined within the HTTP protocol. Your previous server was sending
correct language/charset information within the HTTP 'headers', your
current one isn't. You may be able to get round the problem using the
correct charset information in your HTML documents, but you may need
to speak to the server admins about configuring their web server
language headers.

My browser (Opera) can read the following page correctly using
Automatic Detection, it's encoded in TIS-620 but that is set in the
HTTP headers not, as far as I can see, the document.
http://www.energythai.net/course/Tutorials/creating.html

Owain

Is there a way to see what headders are being put out by my server?

Also, i am the administrator of my server.  I have root access and can
configure it however needed.  How does one configure the headers, for
only one domain on a multiple domain server running apache?

There has been talk of allowing full headers to be shown in the Opera
web browser; I don't know what the current situation is.

As to modifying the webserver, I'm not a webserver admin, but this
page looks like it has some useful pointers:

http://vancouver-webpages.com/multilingual/howto.html
http://httpd.apache.org/docs/mod/mod_mime.html#defaultlanguage
http://ppewww.ph.gla.ac.uk/~flavell/www/content-type.html
http://ppewww.ph.gla.ac.uk/~flavell/charset/internat.html

Owain