lfs-book-i18n/zh_CN/chapter09/network.po

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#. type: Content of: <sect1><title>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:11
msgid "General Network Configuration"
msgstr ""

#. type: Content of: <sect1><sect2><indexterm><primary>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:14
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:167
msgid "network"
msgstr ""

#. type: Content of: <sect1><sect2><indexterm><secondary>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:15
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:136
msgid "configuring"
msgstr ""

#. type: Content of: <sect1><sect2><title>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:18
msgid "Creating Network Interface Configuration Files"
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:20
msgid ""
"Which interfaces are brought up and down by the network script usually "
"depends on the files in <filename "
"class=\"directory\">/etc/sysconfig/</filename>.  This directory should "
"contain a file for each interface to be configured, such as "
"<filename>ifconfig.xyz</filename>, where <quote>xyz</quote> should describe "
"the network card.  The interface name (e.g. eth0) is usually appropriate.  "
"Inside this file are attributes to this interface, such as its IP "
"address(es), subnet masks, and so forth.  It is necessary that the stem of "
"the filename be <emphasis>ifconfig</emphasis>."
msgstr ""

#. type: Content of: <sect1><sect2><note><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:30
msgid ""
"If the procedure in the previous section was not used, udev will assign "
"network card interface names based on system physical characteristics such "
"as enp2s1. If you are not sure what your interface name is, you can always "
"run <command>ip link</command> or <command>ls /sys/class/net</command> after "
"you have booted your system."
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:37
msgid ""
"The following command creates a sample file for the "
"<emphasis>eth0</emphasis> device with a static IP address:"
msgstr ""

#.  jhalfs relies on the values for IFACE, IP, etc. If you want to change
#.      them, please inform the jhalfs maintainer(s). 
#. type: Content of: <sect1><sect2><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:41
#, no-wrap
msgid ""
"<userinput>cd /etc/sysconfig/\n"
"cat &gt; ifconfig.<replaceable>eth0</replaceable> &lt;&lt; \"EOF\"\n"
"<literal>ONBOOT=<replaceable>yes</replaceable>\n"
"IFACE=<replaceable>eth0</replaceable>\n"
"SERVICE=<replaceable>ipv4-static</replaceable>\n"
"IP=<replaceable>192.168.1.2</replaceable>\n"
"GATEWAY=<replaceable>192.168.1.1</replaceable>\n"
"PREFIX=<replaceable>24</replaceable>\n"
"BROADCAST=<replaceable>192.168.1.255</replaceable></literal>\n"
"EOF</userinput>"
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:52
msgid ""
"The values in italics must be changed in every file to match the proper "
"setup."
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:55
msgid ""
"If the <envar>ONBOOT</envar> variable is set to <quote>yes</quote> the "
"System V network script will bring up the Network Interface Card (NIC) "
"during the system boot process. If set to anything but <quote>yes</quote> "
"the NIC will be ignored by the network script and not be automatically "
"brought up.  The interface can be manually started or stopped with the "
"<command>ifup</command> and <command>ifdown</command> commands."
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:62
msgid ""
"The <envar>IFACE</envar> variable defines the interface name, for example, "
"eth0.  It is required for all network device configuration files. The "
"filename extension must match this value."
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:66
msgid ""
"The <envar>SERVICE</envar> variable defines the method used for obtaining "
"the IP address. The LFS-Bootscripts package has a modular IP assignment "
"format, and creating additional files in the <filename "
"class=\"directory\">/lib/services/</filename> directory allows other IP "
"assignment methods. This is commonly used for Dynamic Host Configuration "
"Protocol (DHCP), which is addressed in the BLFS book."
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:73
msgid ""
"The <envar>GATEWAY</envar> variable should contain the default gateway IP "
"address, if one is present. If not, then comment out the variable entirely."
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:77
msgid ""
"The <envar>PREFIX</envar> variable contains the number of bits used in the "
"subnet. Each octet in an IP address is 8 bits. If the subnet's netmask is "
"255.255.255.0, then it is using the first three octets (24 bits) to specify "
"the network number. If the netmask is 255.255.255.240, it would be using the "
"first 28 bits.  Prefixes longer than 24 bits are commonly used by DSL and "
"cable-based Internet Service Providers (ISPs).  In this example (PREFIX=24), "
"the netmask is 255.255.255.0. Adjust the <envar>PREFIX</envar> variable "
"according to your specific subnet.  If omitted, the PREFIX defaults to 24."
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:87
msgid "For more information see the <command>ifup</command> man page."
msgstr ""

#. type: Content of: <sect1><sect2><title>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:91
msgid "Creating the /etc/resolv.conf File"
msgstr ""

#. type: Content of: <sect1><sect2><indexterm><primary>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:94
msgid "/etc/resolv.conf"
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:97
msgid ""
"The system will need some means of obtaining Domain Name Service (DNS) name "
"resolution to resolve Internet domain names to IP addresses, and vice "
"versa. This is best achieved by placing the IP address of the DNS server, "
"available from the ISP or network administrator, into "
"<filename>/etc/resolv.conf</filename>. Create the file by running the "
"following:"
msgstr ""

#. type: Content of: <sect1><sect2><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:104
#, no-wrap
msgid ""
"<userinput>cat &gt; /etc/resolv.conf &lt;&lt; \"EOF\"\n"
"<literal># Begin /etc/resolv.conf\n"
"\n"
"domain <replaceable>&lt;Your Domain Name&gt;</replaceable>\n"
"nameserver <replaceable>&lt;IP address of your primary "
"nameserver&gt;</replaceable>\n"
"nameserver <replaceable>&lt;IP address of your secondary "
"nameserver&gt;</replaceable>\n"
"\n"
"# End /etc/resolv.conf</literal>\n"
"EOF</userinput>"
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:114
msgid ""
"The <varname>domain</varname> statement can be omitted or replaced with a "
"<varname>search</varname> statement.  See the man page for resolv.conf for "
"more details."
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:118
msgid ""
"Replace <replaceable>&lt;IP address of the nameserver&gt;</replaceable> with "
"the IP address of the DNS most appropriate for the setup. There will often "
"be more than one entry (requirements demand secondary servers for fallback "
"capability). If you only need or want one DNS server, remove the second "
"<emphasis>nameserver</emphasis> line from the file. The IP address may also "
"be a router on the local network."
msgstr ""

#. type: Content of: <sect1><sect2><note><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:126
msgid "The Google Public IPv4 DNS addresses are 8.8.8.8 and 8.8.4.4."
msgstr ""

#. type: Content of: <sect1><sect2><title>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:132
msgid "Configuring the system hostname"
msgstr ""

#. type: Content of: <sect1><sect2><indexterm><primary>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:135
msgid "hostname"
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:139
msgid ""
"During the boot process, the file <filename>/etc/hostname</filename> is used "
"for establishing the system's hostname."
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:142
msgid ""
"Create the <filename>/etc/hostname</filename> file and enter a hostname by "
"running:"
msgstr ""

#. type: Content of: <sect1><sect2><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:145
#, no-wrap
msgid ""
"<userinput>echo \"<replaceable>&lt;lfs&gt;</replaceable>\" &gt; "
"/etc/hostname</userinput>"
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:147
msgid ""
"<replaceable>&lt;lfs&gt;</replaceable> needs to be replaced with the name "
"given to the computer. Do not enter the Fully Qualified Domain Name (FQDN) "
"here. That information is put in the <filename>/etc/hosts</filename> file."
msgstr ""

#. type: Content of: <sect1><sect2><title>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:155
msgid "Customizing the /etc/hosts File"
msgstr ""

#. type: Content of: <sect1><sect2><indexterm><secondary>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:158
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:163
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:168
msgid "/etc/hosts"
msgstr ""

#. type: Content of: <sect1><sect2><indexterm><primary>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:162
msgid "localnet"
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:171
msgid ""
"Decide on the IP address, fully-qualified domain name (FQDN), and possible "
"aliases for use in the <filename>/etc/hosts</filename> file. The syntax is:"
msgstr ""

#. type: Content of: <sect1><sect2><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:175
#, no-wrap
msgid "<literal>IP_address myhost.example.org aliases</literal>"
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:177
msgid ""
"Unless the computer is to be visible to the Internet (i.e., there is a "
"registered domain and a valid block of assigned IP addresses&mdash;most "
"users do not have this), make sure that the IP address is in the private "
"network IP address range. Valid ranges are:"
msgstr ""

#. type: Content of: <sect1><sect2><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:182
#, no-wrap
msgid ""
"<literal>Private Network Address Range      Normal Prefix\n"
"10.0.0.1 - 10.255.255.254           8\n"
"172.x.0.1 - 172.x.255.254           16\n"
"192.168.y.1 - 192.168.y.254         24</literal>"
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:187
msgid ""
"x can be any number in the range 16-31. y can be any number in the range "
"0-255."
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:190
msgid ""
"A valid private IP address could be 192.168.1.1. A valid FQDN for this IP "
"could be lfs.example.org."
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:193
msgid ""
"Even if not using a network card, a valid FQDN is still required.  This is "
"necessary for certain programs to operate correctly."
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:196
msgid "Create the <filename>/etc/hosts</filename> file by running:"
msgstr ""

#. type: Content of: <sect1><sect2><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:198
#, no-wrap
msgid ""
"<userinput>cat &gt; /etc/hosts &lt;&lt; \"EOF\"\n"
"<literal># Begin /etc/hosts\n"
"\n"
"127.0.0.1 localhost.localdomain localhost\n"
"127.0.1.1 <replaceable>&lt;FQDN&gt;</replaceable> "
"<replaceable>&lt;HOSTNAME&gt;</replaceable>\n"
"<replaceable>&lt;192.168.1.1&gt;</replaceable> "
"<replaceable>&lt;FQDN&gt;</replaceable> "
"<replaceable>&lt;HOSTNAME&gt;</replaceable> <replaceable>[alias1] [alias2 "
"...]</replaceable>\n"
"::1       localhost ip6-localhost ip6-loopback\n"
"ff02::1   ip6-allnodes\n"
"ff02::2   ip6-allrouters\n"
"\n"
"# End /etc/hosts</literal>\n"
"EOF</userinput>"
msgstr ""

#. type: Content of: <sect1><sect2><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter09/network.xml:211
msgid ""
"The <replaceable>&lt;192.168.1.1&gt;</replaceable>, "
"<replaceable>&lt;FQDN&gt;</replaceable>, and "
"<replaceable>&lt;HOSTNAME&gt;</replaceable> values need to be changed for "
"specific uses or requirements (if assigned an IP address by a network/system "
"administrator and the machine will be connected to an existing network). The "
"optional alias name(s) can be omitted."
msgstr ""