[deployment-guide/comm-rel: 437/727] Adjusted the Advanced Features of BIND section introduction.

[Jaromir Hradilek]

commit 2fb1ff67bc0ca940c8e1e9fb05637e9b29641d7d
Author: Jaromir Hradilek <jhradile at redhat.com>
Date:   Thu Aug 19 16:30:23 2010 +0200

    Adjusted the Advanced Features of BIND section introduction.

 en-US/The_BIND_DNS_Server.xml |   14 +++++---------
 1 files changed, 5 insertions(+), 9 deletions(-)
---
diff --git a/en-US/The_BIND_DNS_Server.xml b/en-US/The_BIND_DNS_Server.xml
index 09201bd..75db5eb 100644
--- a/en-US/The_BIND_DNS_Server.xml
+++ b/en-US/The_BIND_DNS_Server.xml
@@ -1884,19 +1884,15 @@ ns.icann.org.           12884   IN      A       192.0.34.126
   </section>
   <section id="s1-bind-features">
     <title>Advanced Features of BIND</title>
-    <indexterm>
-      <primary>BIND</primary>
-      <secondary>features</secondary>
-    </indexterm>
     <para>
-      Most BIND implementations only use <command>named</command> to provide name resolution services or to act as an authority for a particular domain. However, BIND version 9 has a number of advanced features that allow for a more secure and efficient DNS service.
+      Most BIND implementations only use the <systemitem class="service">named</systemitem> service to provide name resolution services or to act as an authority for a particular domain. However, BIND version 9 has a number of advanced features that allow for a more secure and efficient DNS service.
     </para>
-    <warning>
-      <title>Caution</title>
+    <important>
+      <title>Important: Make Sure the Feature is Supported</title>
       <para>
-        Some of these advanced features, such as DNSSEC, TSIG, and IXFR (which are defined in the following section), should only be used in network environments with nameservers that support the features. If the network environment includes non-BIND or older BIND nameservers, verify that each advanced feature is supported before attempting to use it.
+        Before attempting to use advanced features like DNSSEC, TSIG, or IXFR, make sure that the particular feature is supported by all nameservers in the network environment, especially when you use older versions of BIND or non-BIND servers.
       </para>
-    </warning>
+    </important>
     <para>
       All of the features mentioned are discussed in greater detail in the <citetitle>BIND 9 Administrator Reference Manual</citetitle> referenced in <xref linkend="s2-bind-installed-docs" />.
     </para>