You are using Centos 5 which is deprecated so nothing in yum will work until you follow this post to use the vault:
http://realtechtalk.com/Centos_59_Working_Vault_Repo_file-1921-articles
yum update
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* epel: fedora-archive.ip-connect.vn.ua
Traceback (most recent call last):
File "/usr/bin/yum", line 29, in ?
yummain.user_main(sys.argv[1:], exit_code=True)
File "/usr/share/yum-cli/yummain.py", line 309, in user_main
errcode = main(args)
File "/usr/share/yum-cli/yummain.py", line 178, in main
result, resultmsgs = base.doCommands()
File "/usr/share/yum-cli/cli.py", line 345, in doCommands
self._getTs(needTsRemove)
File "/usr/lib/python2.4/site-packages/yum/depsolve.py", line 101, in _getTs
self._getTsInfo(remove_only)
File "/usr/lib/python2.4/site-packages/yum/depsolve.py", line 112, in _getTsInfo
pkgSack = self.pkgSack
File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 661, in <lambda>
pkgSack = property(fget=lambda self: self._getSacks(),
File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 501, in _getSacks
self.repos.populateSack(which=repos)
File "/usr/lib/python2.4/site-packages/yum/repos.py", line 260, in populateSack
sack.populate(repo, mdtype, callback, cacheonly)
File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 168, in populate
if self._check_db_version(repo, mydbtype):
File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 226, in _check_db_version
return repo._check_db_version(mdtype)
File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 1229, in _check_db_version
repoXML = self.repoXML
File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 1392, in <lambda>
repoXML = property(fget=lambda self: self._getRepoXML(),
File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 1384, in _getRepoXML
self._loadRepoXML(text=self)
File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 1374, in _loadRepoXML
return self._groupLoadRepoXML(text, ["primary"])
File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 1358, in _groupLoadRepoXML
if self._commonLoadRepoXML(text):
File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 1204, in _commonLoadRepoXML
result = self._getFileRepoXML(local, text)
File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 985, in _getFileRepoXML
cache=self.http_caching == 'all')
File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 822, in _getFile
http_headers=headers,
File "/usr/lib/python2.4/site-packages/urlgrabber/mirror.py", line 412, in urlgrab
return self._mirror_try(func, url, kw)
File "/usr/lib/python2.4/site-packages/urlgrabber/mirror.py", line 398, in _mirror_try
return func_ref( *(fullurl,), **kwargs )
File "/usr/lib/python2.4/site-packages/urlgrabber/grabber.py", line 934, in urlgrab
return self._retry(opts, retryfunc, url, filename)
File "/usr/lib/python2.4/site-packages/urlgrabber/grabber.py", line 852, in _retry
r = apply(func, (opts,) + args, {})
File "/usr/lib/python2.4/site-packages/urlgrabber/grabber.py", line 920, in retryfunc
fo = URLGrabberFileObject(url, filename, opts)
File "/usr/lib/python2.4/site-packages/urlgrabber/grabber.py", line 1008, in __init__
self._do_open()
File "/usr/lib/python2.4/site-packages/urlgrabber/grabber.py", line 1091, in _do_open
fo, hdr = self._make_request(req, opener)
File "/usr/lib/python2.4/site-packages/urlgrabber/grabber.py", line 1200, in _make_request
fo = opener.open(req)
File "/usr/lib/python2.4/urllib2.py", line 358, in open
response = self._open(req, data)
File "/usr/lib/python2.4/urllib2.py", line 376, in _open
'_open', req)
File "/usr/lib/python2.4/urllib2.py", line 337, in _call_chain
result = func(*args)
File "/usr/lib/python2.4/site-packages/M2Crypto/m2urllib2.py", line 82, in https_open
h.request(req.get_method(), req.get_selector(), req.data, headers)
File "/usr/lib/python2.4/httplib.py", line 810, in request
self._send_request(method, url, body, headers)
File "/usr/lib/python2.4/httplib.py", line 833, in _send_request
self.endheaders()
File "/usr/lib/python2.4/httplib.py", line 804, in endheaders
self._send_output()
File "/usr/lib/python2.4/httplib.py", line 685, in _send_output
self.send(msg)
File "/usr/lib/python2.4/httplib.py", line 652, in send
self.connect()
File "/usr/lib/python2.4/site-packages/M2Crypto/httpslib.py", line 47, in connect
self.sock.connect((self.host, self.port))
File "/usr/lib/python2.4/site-packages/M2Crypto/SSL/Connection.py", line 159, in connect
if not check(self.get_peer_cert(), self.addr[0]):
File "/usr/lib/python2.4/site-packages/M2Crypto/SSL/Checker.py", line 88, in __call__
fieldName='subjectAltName')
M2Crypto.SSL.Checker.WrongHost: Peer certificate subjectAltName does not match host, expected fedora-archive.ip-connect.vn.ua, got DNS:mirror.ip-connect.vn.ua
crypto, ssl, checker, wronghost, peer, certificate, subjectaltname, fedora, archive, ip, vn, ua, dns, uayou, centos, deprecated, yum, http, realtechtalk, centos_, _working_vault_repo_file, articles, update, plugins, fastestmirror, loading, speeds, cached, hostfile, epel, traceback, quot, usr, bin, yummain, user_main, sys, argv, exit_code, cli, py, errcode, args, resultmsgs, docommands, _getts, needtsremove, lib, python, packages, depsolve, _gettsinfo, remove_only, pkgsack, __init__, lambda, fget, _getsacks, repos, populatesack, populate, repo, mdtype, callback, cacheonly, yumrepo, _check_db_version, mydbtype, repoxml, _getrepoxml, _loadrepoxml, text, _grouploadrepoxml, primary, _commonloadrepoxml, _getfilerepoxml, cache, http_caching, _getfile, http_headers, headers, urlgrabber, urlgrab, _mirror_try, func, url, kw, func_ref, fullurl, kwargs, grabber, _retry, opts, retryfunc, filename, fo, urlgrabberfileobject, _do_open, hdr, _make_request, req, opener, urllib, _open, _call_chain, https_open, get_method, get_selector, httplib, _send_request, method, endheaders, _send_output, msg, httpslib, get_peer_cert, addr, __call__, fieldname,