[congvinh]

Hi
I used fedora7. I connected internet by proxy. In terminal, I run command "yum update". It error: [root@localhost thanhcong]# yum update
Loading "installonlyn" plugin
Setting up Update Process
Setting up repositories
Could not retrieve mirrorlist http://mirrors.fedoraproject.org/mir...hide&arch=i386 error was
[Errno 4] IOError: <urlopen error (-3, 'Temporary failure in name resolution')>
Error: Cannot find a valid baseurl for repo: development

[khafa]

set and export the http_proxy variable

export http_proxy=http://address:port/

replace in the above command address by your proxy address and port by the port you connect to(on the proxy)