IndexIgnore .htaccess

Hi,

I've been asked to modify an existing site and I ran across some code in the .htaccess file I don't understand (this .htaccess file is in the root directory). I know that IndexIgnore blocks folders/directories, and I'm wondering if this code is blocking the entire site (I believe part of the code is a wild card?). Could someone please decipher? Also, is the second portion of code related to the first portion of code? Thanks

First portion:

Code:

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IndexIgnore .htaccess */.??* *~ *# */HEADER* */README* */_vti*

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Second portion:

Code:

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<Limit GET POST>
order deny,allow
deny from all
allow from all
</Limit>
<Limit PUT DELETE>
order deny,allow
deny from all
</Limit>
AuthName website.com
AuthUserFile /home/username/public_html/_vti_pvt/service.pwd
AuthGroupFile /home/username/public_html/_vti_pvt/service.grp

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