Differences

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--- linux:host_dns [2013/01/02 19:28] – tmade
+++ linux:host_dns [2024/02/24 14:01] (current) – [DNS-/ DHCP] tmade
@@ Line 18: / Line 18: @@
   /etc/hosts                                   #Configuration hosts file (local DNS resolution)
-DNS Service on Linux:
+DNS-Name-Cache-Daemon Service on SLES-Linux:
   nscd
@@ Line 24: / Line 24: @@
 <code>
-domain site.example.com site.example.de       #DNS-SUFFIX for DNS resolving
+#DNS-SUFFIX for DNS resolving
+search site.example.com site.example.de
+#List of nameservers to add
 nameserver 1.2.3.4
 nameserver 2.3.4.5
@@ Line 34: / Line 36: @@
 [[Linux:BIND]]
+==== DNS-/ DHCP / dhclient.conf====
+If you want to **override** the DNS servers **provided by DHCP entirely** and force the system to use the ones you provide, use the **supersede** entry:
+  /etc/dhcp/dhclient.conf
+  supersede domain-name-servers 127.0.0.1;
+  supersede domain-name-servers 12.34.56.78, 12.34.56.79;
+<code>
+cat /etc/resolv.conf
+nameserver 127.0.0.1
+</code>
+"**prepend**" add servers to those provided by dhcp (work as a fallback):
+  prepend domain-name-servers 12.34.56.78, 12.34.56.79;