====== Configuration ======
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The option is enabled by configuration parameter in ///etc/dpi/fastdpi.conf://

<code>ad_server=www.adserver.ru</code>
Here <nowiki>www.adserver.ru</nowiki> is the name or the address of the new content server.

The list of URLs to replace is supplied as a text file. Each line of this file contains one URL (no <nowiki>http://</nowiki> prefix).

**Example:** the list to replace ad content Yandex Direct and Google AdWords:

<code>
pagead2.googlesyndication.com/pagead/show_ads.js
an.yandex.ru/system/context.js
</code>

The list is converted into an internal format and placed to /var/lib/dpi. DPI platform loads it from the latest location: 
<code>
cat my_ad_list.txt|url2dic my_ad_list.dic
mv my_ad_list.dic /var/lib/dpi/adlist.bin
</code>

<note important>Advertisement blocking using https/quic protocols is carried out using the hosts list\\
The redirection to ad_server in this case is not performed.</note>

**Example:** preparing a list for the ad blocking in youtube:
<code bash>
cat <<EOF|url2dic /var/lib/dpi/adlistsni.bin
pagead2.googlesyndication.com
googleads.g.doubleclick.net
googleads4.g.doubleclick.net
pubads.g.doubleclick.net
ad.doubleclick.net
securepubads.g.doubleclick.net
www.googleadservices.com
EOF
</code>

**Example:** preparing a list to block popular ads:

<code>adservice.google.com
pagead2.googlesyndication.com
ads.adfox.ru
yabs.yandex.ru</code>