ip command

I‘m typing the following command under Ubuntu Linux:

route add default gw eth0

But it is giving me out the following error:

SIOCADDRT: File exists

How do I fix this problem?

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How do I find out ip number (IP Address) of my Linux server using command line options?

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When I try to ping other UNIX / Linux / BSD or MS-Windows servers in our network I get the following message:

TTL Expired In Transit

How do I fix this problem?

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KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on x86 hardware containing virtualization extensions Intel VT or AMD-V. How do I install KVM under CentOS or Red Hat Enterprise Linux version 5.5?

This FAQ entry is part 1 of 7 in the series Redhat KVM Virtulization:


How do I display a list of all installed Ethernet adapters on Ubuntu Linux server using bash command line option?


How do I parse my Linux servers IP address using a Bash shell?


How do I to find out ip address on a CentOS or Fedora or Redhat Enterprise Linux server or desktop system using bash shell or command line options?