Hi every body.I already have installed centOs 5.2 on Vmware.It works on a PC and connect to internet via proxy.I want to make rpm packages but it's not possible because RPM-Build package is not installed. So I decided to use yum to download all necessary packages but I got errors.I installed python 2.5 msi on my windows and configured necessary files according to http://richard.gluga.com/2008/10/ntlm-proxies.html
I get this message when i type python main.py:

NTLM authorization Proxy Server v0.9.9.0.1
Copyright (c) 2001-2004 by Dmitry Rozmandov and others.
Now listening at hostname on port 3128

I suspend it and run it in background and run yum update but although i've changed my /etc/yum.repos.d/CentOs-Base.repo I get this error:
Loading "installonlyn"plugin
Setting up repositories
http://repo.elastix.org/centos/5/upd...ta/repomd.xml: [Errno 4] IOError: <urlopen error nonumeric port: '3128?' >
Trying other mirror.
Error:Cannot open/read repomd.xml file for repository: elastix-beta
What is this error?here is my CentOs-Base.repo:
CentOS-Base.repo
#
# This file uses a new mirrorlist system developed by Lance Davis for CentOS.
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client. You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the
# remarked out baseurl= line instead.
#
#

[base]
name=CentOS-$releasever - Base
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
#baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

#released updates
[updates]
name=CentOS-$releasever - Updates
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
#baseurl=http://mirror.centos.org/centos/$releasever/updates/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

#packages used/produced in the build but not released
[addons]
name=CentOS-$releasever - Addons
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=addons
#baseurl=http://mirror.centos.org/centos/$releasever/addons/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
#baseurl=http://mirror.centos.org/centos/$releasever/extras/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus
#baseurl=http://mirror.centos.org/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5
and here is my yum.conf:


cachedir=/var/cache/yum
keepcache=1
debuglevel=2
logfile=/var/log/yum.log
pkgpolicy=newest
distroverpkg=redhat-release
tolerant=1
exactarch=1
obsoletes=1
gpgcheck=1
plugins=1
metadata_expire=1800
timeout=300
proxy=http://myproxy.domain:3128
proxy_username=username
proxy_password=password
# PUT YOUR REPOS HERE OR IN separate files named file.repo
# in /etc/yum.repos.d

Are you sure your proxy is working ? Try connecting a web browser (you can use elinks if you don't have the gui installed)

I installed elinks and tried to connect google but it says unable to retrieve http://google.com
Does it mean that my proxy don't work?

I installed elinks and tried to connect google and yahoo but it says unable to retrieve http://google.com
Does it mean that my proxy don't work?

What I can do now to fix this error? any suggestion?

It could be anything from your proxy server not working to firewall issues.

What do you mean you suspend your proxy and run it in the background?

I mean I used:
bg python

I mean I used:
bg python

What is "main.py"?

I don't know exactly.Here is the code :

#! /usr/bin/python

# This file is part of 'NTLM Authorization Proxy Server'
# Copyright 2001 Dmitry A. Rozmanov <dima@xenon.spb.ru>
#
# NTLM APS is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# NTLM APS is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with the sofware; see the file COPYING. If not, write to the
# Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
#
import __init__

import sys

import server, config, config_affairs


#--------------------------------------------------------------
# config affairs
# look for default config name in lib/config.py
conf = config.read_config(config.findConfigFileNameInArgv(sys.argv, __init__.ntlmaps_dir+'/'))

conf['GENERAL']['VERSION'] = '0.9.9.0.1'

#--------------------------------------------------------------
print 'NTLM authorization Proxy Server v%s' % conf['GENERAL']['VERSION']
print 'Copyright (C) 2001-2004 by Dmitry Rozmanov and others.'

config = config_affairs.arrange(conf)


#--------------------------------------------------------------
# let's run it
serv = server.AuthProxyServer(config)
serv.run()

So you don't really know if you are running a proxy?

Why don't you try yum without any proxy settings?

Because I'm behind a proxy and I should use yum with proxy settings.But I don't know why it didn't work although I carefully set every thing

What do you get with

It says:
proxy.company/3128:Temporary failure in name resolution.

So you have a DNS problem

What does
give you?