Network guru help sought please

Timothy Murphy gayleard at
Fri Jul 3 13:36:50 UTC 2009

I'm continuing to have problems with mirrorlist in yum.

If I leave the 2 lines in /etc/yum.repos.d/fedora.repo
as is, and run "sudo yum update" then I get the error
Error: Cannot retrieve repository metadata (repomd.xml) for repository: 
fedora. Please verify its path and try again

If I comment in the first line, and comment out the second, 
then "sudo yum update" works fine.

On the other hand, on my CentOS machine, the lines
work fine as they are.

When I look with "tcpdump -i eth0" at the packets 
being sent to the internet, I see that the CentOS mirrorlist
is being interpreted properly, and the packets are going to a mirror.

But the Fedora mirrorlist is not interpreted.
The packets are all sent to
14:00:35.753120 IP > . 
	ack 1 win 46 <nop,nop,timestamp 46404715 59010547>

(This is true even on the CentOS machine;
I cannot use the fedora mirrorlist for the Epel repository.)

I'm completely baffled by this.
I think it began a month or so ago, while running Fedora-10.
But as I say, I have the same problem on the CentOS server,
so it is nothing to do with the Fedora version.

In brief, it seems the mirrorlist command is not being properly interpreted.
I get the same problem with wget, but everything works fine under Windows.

As always, any help gratefully received.

Timothy Murphy  
e-mail: gayleard /at/
tel: +353-86-2336090, +353-1-2842366
s-mail: School of Mathematics, Trinity College Dublin 

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