I have been trying to install packages to my new computer and have not succeded. WHEN I use yum update it give me back this error:


[root@marothi ~]# yum install update
Loading "installonlyn" plugin
Setting up Install Process
Setting up repositories
Could not retrieve mirrorlist http://mirrors.fedoraproject.org/mir...re-6&arch=i386 error was
[Errno 14] HTTP Error 407: Server: squid/2.5.STABLE13
Mime-Version: 1.0
Date: Sat, 06 Oct 2007 13:36:35 GMT
Content-Type: text/html
Content-Length: 1384
Expires: Sat, 06 Oct 2007 13:36:35 GMT
X-Squid-Error: ERR_CACHE_ACCESS_DENIED 0
Proxy-Authenticate: Basic realm="WITS Squid proxy-caching web server"
X-Cache: MISS from athena.wits.ac.za
Proxy-Connection: close

Error: Cannot find a valid baseurl for repo: core
[root@marothi ~]#

please help!

From http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html

10.4.8 407 Proxy Authentication Required

This code is similar to 401 (Unauthorized), but indicates that the client must first authenticate itself with the proxy. The proxy MUST return a Proxy-Authenticate header field (section 14.33) containing a challenge applicable to the proxy for the requested resource. The client MAY repeat the request with a suitable Proxy-Authorization header field (section 14.34). HTTP access authentication is explained in "HTTP Authentication: Basic and Digest Access Authentication" [43].

Do you connect to the internet through a proxy? A different header is returned if you telnet to port 80 at mirrors.fedoraproject.org

telnet mirrors.fedoraproject.org 80

HTTP/1.1 200 OK
Date: Sat, 06 Oct 2007 20:54:59 GMT
Server: Apache/2.2.4 (Fedora)
Content-Type: text/plain; charset=UTF-8
Transfer-Encoding: chunked