8.8. Do the Network Cards Work?
With the command
ifconfig
you can see the current condition of the network cards. | This command is also good for finding out which IP address the machine has, as well as its MAC address (which is called "HWaddr"). Another way to collect MAC addresses is to have a look at the syslog file at the time that you start up the machine whose MAC address you want to find. Then all you have to do is cut and paste. Use the command, as root, tail -f /var/log/syslog then you will see something likeJun 2 22:52:28 tjener dhcpd-2.2.x: DHCPDISCOVER from 00:02:b3:8f:66:76 via eth1 Jun 2 22:52:28 tjener dhcpd-2.2.x: DHCPOFFER on 192.168.0.13 to 00:02:53:8f:66:76 via eth1 Jun 2 22:52:29 tjener dhcpd-2.2.x: DHCPREQUEST for 192.168.0.13 from 00:02:53:8f:66:76 via eth1 Jun 2 22:52:29 tjener dhcpd-2.2.x: DHCPACK on 192.168.0.13 to 00:02:53:8f:66:76 via eth1Use CTRL-C to stop the process. |
tjener:~# ifconfig
eth0 Link encap:Ethernet HWaddr 00:04:75:81:AA:78
inet addr:10.0.2.2 Bcast:10.0.3.255 Mask:255.255.254.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:27892 errors:0 dropped:0 overruns:0 frame:0
TX packets:26194 errors:0 dropped:0 overruns:0 carrier:0
collisions:5 txqueuelen:100
RX bytes:23495725 (22.4 MiB) TX bytes:2810447 (2.6 MiB)
Interrupt:11 Base address:0xdc00
eth1 Link encap:Ethernet HWaddr 00:04:75:81:AA:FD
inet addr:192.168.0.254 Bcast:192.168.0.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1976176 errors:0 dropped:0 overruns:26 frame:0
TX packets:2271670 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:486381910 (463.8 MiB) TX bytes:1131449472 (1.0 GiB)
Interrupt:10 Base address:0xe000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:44174 errors:0 dropped:0 overruns:0 frame:0
TX packets:44174 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:11789085 (11.2 MiB) TX bytes:11789085 (11.2 MiB)
If what you see is similar to the above, but you still can't get on the net, then you may have to do something with your DNS-setup. Have a look at this section in the documentaton about Coyote Linux, Section 3.11.