Page 42 - DCAP106_OPERATING_SYSTEM_TOOLS

Unit 2: Red Hat Linux 9 Basics

Output: Notes
1. lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN mode
DEFAULT
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2. eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state
DOWN mode DEFAULT qlen 1000
link/ether 10:1f:74:58:e1:04 brd ff:ff:ff:ff:ff:ff
3. wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode
DORMANT qlen 1000
link/ether d0:df:9a:e6:1d:a6 brd ff:ff:ff:ff:ff:ff
4. virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state
DOWN mode DEFAULT

link/ether 52:54:00:be:79:50 brd ff:ff:ff:ff:ff:ff
5. virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state
DOWN mode DEFAULT qlen 500
link/ether 52:54:00:be:79:50 brd ff:ff:ff:ff:ff:ff

Or
As a root user
mii-tool
Output:

eth0: no link
Or for wireless network card
ethtool interfacename
Example
root@linuxnix.com:/home/surendra# ethtool wlan0

Settings for wlan0:
Link detected: yes
Example 3: How can we find out network card speeds so that we can see throughput of the
devices attached to a machine.
ethtool eth0 | grep speed
Output:
ethtool eth0 | grep Speed
Speed: 10Mb/s

Information Regarding the Mouse and the Keyboard

The tool of Red Hat Linux used for the mouse configuration is the program redhat−config−onfig.
This can be run from the command line. Alternatively, we can run this by choosing Main Menu
zSystem Settings  Mouse. You will have found this program already, as it was run during
the installation process.

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