[Yum] Install / update problem

[edwardspl at ita.org.mo]

Dear All,

Would you mind to help ?

[root at svr1 fc6]# yum localinstall telnet*.rpm
Loading "installonlyn" plugin
Setting up Local Package Process
Examining telnet-0.17-37.i386.rpm: telnet - 1:0.17-37.i386
Examining telnet-server-0.17-37.i386.rpm: telnet-server - 1:0.17-37.i386
Marking telnet-server-0.17-37.i386.rpm to be installed
Setting up repositories
Could not retrieve mirrorlist
http://mirrors.fedoraproject.org/mirrorlist?repo=c
ore-6&arch=i386 error was
[Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name
resolution')>
Error: Cannot find a valid baseurl for repo: core
[root at svr1 fc6]#

What's peoblem I had ?
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