diff --git a/Manuals/Tcpi-ug/Configurations/Ppp/packages.docbook b/Manuals/Tcpi-ug/Configurations/Ppp/packages.docbook
index 0a57b16..58dab6c 100644
--- a/Manuals/Tcpi-ug/Configurations/Ppp/packages.docbook
+++ b/Manuals/Tcpi-ug/Configurations/Ppp/packages.docbook
@@ -32,7 +32,7 @@
         The name server provides the software required to translate
         domain names into IP address and IP addresses into domain
         names. With this software you can rembember addresses like
-        <ulink url="https://example.com/" /> instead of addresses like
+        <ulink url="https://projects.centos.org/" /> instead of addresses like
         <ulink url="https://192.168.0.1/" />.  There are other
         feautres (e.g., mail exchanger resolution, zone delegation,
         etc.) provided by this software that aren't used in the
@@ -116,7 +116,7 @@
     <itemizedlist>
     <listitem>
     <para>
-        <ulink url="https://example.com/lists/" />
+        <ulink url="https://projects.centos.org/lists/" />
     </para>
     </listitem>
     </itemizedlist>