| 1 | <?xml version="1.0" encoding="ISO-8859-1"?> |
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" |
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| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [ |
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| 4 | <!ENTITY % general-entities SYSTEM "../../general.ent"> |
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| 5 | %general-entities; |
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| 6 | ]> |
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| 7 | |
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| 8 | <sect1 id="ch-network-resolv"> |
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| 9 | <?dbhtml filename="resolv.html"?> |
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| 10 | |
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| 11 | <title>Creating the /etc/resolv.conf File</title> |
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| 12 | |
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| 13 | <sect2 id="resolv.conf"> |
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| 14 | <title>Creating the /etc/resolv.conf File</title> |
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| 15 | |
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| 16 | <indexterm zone="resolv.conf"> |
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| 17 | <primary sortas="e-/etc/resolv.conf">/etc/resolv.conf</primary> |
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| 18 | </indexterm> |
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| 19 | |
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| 20 | <para>If the system is going to be connected to the Internet, it will |
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| 21 | need some means of Domain Name Service (DNS) name resolution to |
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| 22 | resolve Internet domain names to IP addresses, and vice versa. This is |
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| 23 | best achieved by placing the IP address of the DNS server, available |
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| 24 | from the ISP or network administrator, into |
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| 25 | <filename>/etc/resolv.conf</filename>. If atleast one of your network |
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| 26 | interfaces is going to be configured by DHCP then you may not need to |
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| 27 | create this file. By default DHCPCD will overwrite this file when it gets |
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| 28 | a new lease from the DHCP server. If you wish to manually configure your |
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| 29 | network interfaces or manually set your DNS using DHCP then create the |
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| 30 | file by running the following:</para> |
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| 31 | |
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| 32 | <screen><userinput>cat > /etc/resolv.conf << "EOF" |
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| 33 | <literal># Begin /etc/resolv.conf |
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| 34 | |
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| 35 | domain <replaceable>[Your Domain Name]</replaceable> |
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| 36 | nameserver <replaceable>[IP address of your primary nameserver]</replaceable> |
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| 37 | nameserver <replaceable>[IP address of your secondary nameserver]</replaceable> |
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| 38 | |
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| 39 | # End /etc/resolv.conf</literal> |
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| 40 | EOF</userinput></screen> |
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| 41 | |
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| 42 | <para>Replace <replaceable>[IP address of the nameserver]</replaceable> |
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| 43 | with the IP address of the DNS most appropriate for the setup. There will |
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| 44 | often be more than one entry (requirements demand secondary servers for |
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| 45 | fallback capability). If you only need or want one DNS server, remove the |
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| 46 | second <emphasis>nameserver</emphasis> line from the file. The IP address |
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| 47 | may also be a router on the local network.</para> |
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| 48 | |
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| 49 | </sect2> |
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| 50 | |
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| 51 | </sect1> |
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