Yum cannot access mirrors but wget can

[lklepner]

Hi,

I'm experiencing a problem with yum. All of the mirrors were experiencing an error
http://mirror.itc.virginia.edu/fedora-e ... repomd.xml
[Errno 4] IOError: <urlopen error (111, 'Connection refused')>

But if I curl that same URL it loads without a problem.

Is it possible I have a network config problem which only applies to yum?

Thanks,
Lou

[lklepner]

I ran yum clean all and now when I run yum update an error loading the mirrorlist -

# yum update
Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=5 ... 64&repo=os error was
[Errno 4] IOError: <urlopen error (111, 'Connection refused')>
Error: Cannot retrieve repository metadata (repomd.xml) for repository: base. Please verify its path and try again

Like before the mirrorlist is accessible by curl -
# curl "http://mirrorlist.centos.org/?release=5 ... 64&repo=os"
http://mirror.ash.fastserv.com/pub/linu ... os/x86_64/
http://mirror.cs.vt.edu/pub/CentOS/5.10/os/x86_64/
http://mirror.stanford.edu/yum/pub/cent ... os/x86_64/
http://mirror.lug.udel.edu/pub/centos/5.10/os/x86_64/
http://mirror.pac-12.org/5.10/os/x86_64/
http://mirror.atlanticmetro.net/centos/5.10/os/x86_64/
http://mirror.es.its.nyu.edu/centos/5.10/os/x86_64/
http://linux.mirrors.es.net/centos/5.10/os/x86_64/
http://mirrors.adams.net/centos/5.10/os/x86_64/
http://mirror.rackspace.com/CentOS/5.10/os/x86_64/

I have two network interfaces - eth0 is a public IP DMZ, eth1 is a LAN connection without routing to the internet.
Is it possible the curl is routing through eth0 but yum is mistakenly trying to route through the eth1 interface?

Checking my route it seems like eth0 is the gateway... but I'm not an expert on this level of things.
# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
xxx.xxx.xxx.96 0.0.0.0 255.255.255.240 U 0 0 0 eth0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0
0.0.0.0 xxx.xxx.xxx.97 0.0.0.0 UG 0 0 0 eth0

Thanks,
Lou

[TrevorH]

Or more likely mirrorlist.centos.org resolves to more than one IP address so it fails when you hit one particular one of them.

[lklepner]

Is there someplace I can manually copy/paste the mirror list?

Found it-
/var/cache/yum/base/mirrorlist.txt

Now I'm getting connection refused on all of the mirrors in very fast succession -
# yum update
http://mirror.ash.fastserv.com/pub/linu ... repomd.xml: [Errno 4] IOError: <urlopen error (111, 'Connection refused')>
Trying other mirror.
http://mirror.cs.vt.edu/pub/CentOS/5.10 ... repomd.xml: [Errno 4] IOError: <urlopen error (111, 'Connection refused')>
Trying other mirror.
http://mirror.stanford.edu/yum/pub/cent ... repomd.xml: [Errno 4] IOError: <urlopen error (111, 'Connection refused')>
Trying other mirror.
http://mirror.lug.udel.edu/pub/centos/5 ... repomd.xml: [Errno 4] IOError: <urlopen error (111, 'Connection refused')>
Trying other mirror.
http://mirror.pac-12.org/5.10/os/x86_64 ... repomd.xml: [Errno 4] IOError: <urlopen error (111, 'Connection refused')>
Trying other mirror.
http://mirror.atlanticmetro.net/centos/ ... repomd.xml: [Errno 4] IOError: <urlopen error (111, 'Connection refused')>
Trying other mirror.
http://mirror.es.its.nyu.edu/centos/5.1 ... repomd.xml: [Errno 4] IOError: <urlopen error (111, 'Connection refused')>
Trying other mirror.
http://linux.mirrors.es.net/centos/5.10 ... repomd.xml: [Errno 4] IOError: <urlopen error (111, 'Connection refused')>
Trying other mirror.
http://mirrors.adams.net/centos/5.10/os ... repomd.xml: [Errno 4] IOError: <urlopen error (111, 'Connection refused')>
Trying other mirror.
http://mirror.rackspace.com/CentOS/5.10 ... repomd.xml: [Errno 4] IOError: <urlopen error (111, 'Connection refused')>
Trying other mirror.
Error: Cannot retrieve repository metadata (repomd.xml) for repository: base. Please verify its path and try again

And again if I curl an individual mirror it seems to work -
# curl "http://mirror.ash.fastserv.com/pub/linu ... repomd.xml"
<?xml version="1.0" encoding="UTF-8"?>
<repomd xmlns="http://linux.duke.edu/metadata/repo">
<data type="other">
<location href="repodata/other.xml.gz"/>
<checksum type="sha">d886eb93bd0b81ccd64d7a9624707cbcc00d86af</checksum>
<timestamp>1381776732</timestamp>
<open-checksum type="sha">d1311d338b9a3bb51bd9daf87b7f954df551a197</open-checksum>
</data>
<data type="filelists">
<location href="repodata/filelists.xml.gz"/>
<checksum type="sha">3a04e3a894ca50b9ace3206ecd8548d4fd59558a</checksum>
<timestamp>1381776732</timestamp>
<open-checksum type="sha">8c39e8415f11a2c49cd70f28467821255d04420d</open-checksum>
</data>
<data type="primary">
<location href="repodata/primary.xml.gz"/>
<checksum type="sha">c0950219aeee9c367d2d04503f5ca076046c286e</checksum>
<timestamp>1381776732</timestamp>
<open-checksum type="sha">d0e5c962e637f0143ec477c7469b3232911de036</open-checksum>
</data>
<data type="group">
<location href="repodata/comps.xml"/>
<checksum type="sha">3ee7d3a7a85c2395bba18b417663a881ec0f31ef</checksum>
<timestamp>1381776346</timestamp>
</data>
</repomd>

[avij]

Perhaps your yum has been configured to use a proxy and the proxy is not working?

grep -ri proxy /etc/yum.*

[TrevorH]

Or alternatively, it needs to use a proxy and isn't set up