解决yum 命令出现 [Errno 14] curl#6 - ＂Couldn't resolve host ...＂

安装svn的时候，发现报错说一个地址无法访问。

# yum list | grep subversion

1. http://opensource.wandisco.com/centos/7/svn-1.8/RPMS/x86_64/repodata/repomd.xml:[Errno14]curl#6-"Couldn'tresolvehost'opensource.wandisco.com'"
2. 正在尝试其它镜像。
5. Oneoftheconfiguredrepositoriesfailed(WandiscoSVNRepo),
6. andyumdoesn'thaveenoughcacheddatatocontinue.Atthispointtheonly
7. safethingyumcandoisfail.Thereareafewwaystowork"fix"this:
9. 1.Contacttheupstreamfortherepositoryandgetthemtofixtheproblem.
11. 2.Reconfigurethebaseurl/etc.fortherepository,topointtoaworking
12. upstream.Thisismostoftenusefulifyouareusinganewer
13. distributionreleasethanissupportedbytherepository(andthe
14. packagesforthepreviousdistributionreleasestillwork).
16. 3.Disabletherepository,soyumwon'tuseitbydefault.Yumwillthen
17. justignoretherepositoryuntilyoupermanentlyenableitagainoruse
18. --enablerepofortemporaryusage:
20. yum-config-manager--disableWandiscoSVN
22. 4.Configurethefailingrepositorytobeskipped,ifitisunavailable.
23. Notethatyumwilltrytocontacttherepo.whenitrunsmostcommands,
24. sowillhavetotryandfaileachtime(andthus.yumwillbebemuch
25. slower).Ifitisaverytemporaryproblemthough,thisisoftenanice
26. compromise:
28. yum-config-manager--save--setopt=WandiscoSVN.skip_if_unavailable=true
30. failure:repodata/repomd.xmlfromWandiscoSVN:[Errno256]Nomoremirrorstotry.
31. http://opensource.wandisco.com/centos/7/svn-1.8/RPMS/x86_64/repodata/repomd.xml:[Errno14]curl#6-"Couldn'tresolvehost'opensource.wandisco.com'"

1. #vi/etc/resolv.conf
3. #GeneratedbyNetworkManager
4. nameserver8.8.8.8
5. nameserver211.155.23.88
6. nameserver211.155.27.88