linux技术中坚站 - redhat9_0上配置网卡ip.htm
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<TD style="FONT-SIZE: 14pt">ygl23</TD>
<TD class=smallfont align=right>2006-08-29 10:36</TD></TR></TBODY></TABLE>
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<DIV><STRONG>Redhat9.0上配置网卡IP</STRONG><BR> </DIV>
<DIV>在我的笔记本上安装了redhat9.0，系统安装完成后，设置网卡IP地址。修改/etc/sysconfig/network-scripts/ifcfg-eth0这个文件，设置相应IP.文件内容如下：<BR>DEVICE=eth0<BR>ONBOOT=yes<BR>BOOTPROTO=static<BR>IPADDR=172.16.103.20<BR>NETMASK=255.255.255.0<BR>GATEWAY=172.16.103.254<BR><BR>可是重起系统后eth0没有启用:<BR>lo
Link encap:Local Loopback<BR>inet addr:127.0.0.1 Mask:255.0.0.0<BR>UP
LOOPBACK RUNNING MTU:16436 Metric:1<BR>RX packets:1416 errors:0 dropped:0
overruns:0 frame:0<BR>TX packets:1416 errors:0 dropped:0 overruns:0
carrier:0<BR>collisions:0 txqueuelen:0<BR>RX bytes:70800 (69.1 Kb) TX
bytes:70800 (69.1
Kb)<BR><BR>我查看了配置文件如上，这个配置肯定没有问题。刚开始，我只好在/etc/rc.local中添加了配置网卡IP的命令:<BR>ifconfig
eth0 172.161.03.20 netmask 255.255.255.0 up<BR>sleep 1<BR>route add
default gw
172.16.103.254<BR>但是感觉总是不爽，没有根本性的解决问题。所以继续寻找解决的方法，嘿，还找到了出现问题的原因：在/etc/sysconfig/networking/devices目录下也存在一个ifcfg-eth0文件，内容如下:<BR>DEVICE=eth0<BR>ONBOOT=no<BR>BOOTPROTO=static<BR>IPADDR=172.16.103.20<BR>NETMASK=255.255.255.0<BR>GATEWAY=172.16.103.254<BR>这个文件中的配置没有雇用eth0，我修改了配置(ONBOOT=yes)后，重起系统就可以自动启用eth0了。<BR>[root@ygl23
devices]# ifconfig<BR>eth0 Link encap:Ethernet HWaddr
00:02:B3:06:21:92<BR>inet addr:172.16.103.20 Bcast:172.16.103.255
Mask:255.255.255.0<BR>UP BROADCAST RUNNING MULTICAST MTU:1500
Metric:1<BR>RX packets:4031 errors:0 dropped:0 overruns:0 frame:0<BR>TX
packets:3154 errors:0 dropped:0 overruns:0 carrier:0<BR>collisions:0
txqueuelen:100<BR>RX bytes:1869938 (1.7 Mb) TX bytes:388457 (379.3
Kb)<BR>Interrupt:11 Base address:0x1800 Memory:e8120000-e8120038<BR><BR>lo
Link encap:Local Loopback<BR>inet addr:127.0.0.1 Mask:255.0.0.0<BR>UP
LOOPBACK RUNNING MTU:16436 Metric:1<BR>RX packets:1582 errors:0 dropped:0
overruns:0 frame:0<BR>TX packets:1582 errors:0 dropped:0 overruns:0
carrier:0<BR>collisions:0 txqueuelen:0<BR>RX bytes:79100 (77.2 Kb) TX
bytes:79100 (77.2 Kb)</DIV></TD></TR></TBODY></TABLE><BR>
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<TD style="FONT-SIZE: 14pt">ygl23</TD>
<TD class=smallfont align=right>2006-08-29 10:43</TD></TR></TBODY></TABLE>
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<DIV>同样还存在/etc/sysconfig/networking/profiles/default这个目录，目录中也有三个文件，具体作用相信大家都知道：<BR>hosts
ifcfg-eth0 resolv.conf</DIV></TD></TR></TBODY></TABLE><BR>
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<TD style="FONT-SIZE: 14pt">ygl23</TD>
<TD class=smallfont align=right>2006-08-29 10:45</TD></TR></TBODY></TABLE>
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<DIV>这个配置系统回环设备的配置文件:<BR>/etc/sysconfig/networking/ifcfg-lo
<BR>DEVICE=lo<BR>IPADDR=127.0.0.1<BR>NETMASK=255.0.0.0<BR>NETWORK=127.0.0.0<BR>#
If you're having problems with gated making 127.0.0.0/8 a martian,<BR>#
you can change this to something else (255.255.255.255, for
example)<BR>BROADCAST=127.255.255.255<BR>ONBOOT=yes<BR>NAME=loopback</DIV></TD></TR></TBODY></TABLE><BR>
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<TD style="FONT-SIZE: 14pt">ygl23</TD>
<TD class=smallfont align=right>2006-08-29 10:46</TD></TR></TBODY></TABLE>
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<DIV>这些文件是一个拷贝不是链接</DIV></TD></TR></TBODY></TABLE><BR><BR>
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<TD class=smallfont>所有时间均为<STRONG>格林威治时间+8</STRONG>. 现在的时间是 <SPAN
class=time>16:58</SPAN>.</TD>
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