下面由centos基础教程栏目给大家介绍centos7 yum fastestmirror不能使用的解决办法，希望对需要的朋友有所帮助！

centos7 yum fastestmirror不能使用

[root@localhost ~]# yum install lrzsz
Loaded plugins: fastestmirror
Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock error was
14: curl#6 - "Could not resolve host: mirrorlist.centos.org; Unknown error"

==================================================

第一步：

[root@localhost ~]# vi  /etc/yum/pluginconf.d/fastestmirror.conf 
[main]
enabled=1//把1改为0  
verbose=0
always_print_best_host = true
socket_timeout=3
#  Relative paths are relative to the cachedir (and so works for users as well
# as root).
hostfilepath=timedhosts.txt
maxhostfileage=10
maxthreads=15
#exclude=.gov, facebook
#include_only=.nl,.de,.uk,.ie

============================================

第二步：

[root@localhost ~]# vi /etc/yum.conf
[main]
cachedir=/var/cache/yum/$basearch/$releasever
keepcache=0
debuglevel=2
logfile=/var/log/yum.log
exactarch=1
obsoletes=1
gpgcheck=1
plugins=1//将plugins的值修改为0
installonly_limit=5
bugtracker_url=http://bugs.centos.org/set_project.php?project_id=23&ref=http://bugs.centos.org/bug_report_page.php?category=yum
distroverpkg=centos-release
#  This is the default, if you make this bigger yum won't see if the metadata
# is newer on the remote and so you'll "gain" the bandwidth of not having to
# download the new metadata and "pay" for it by yum not having correct
# information.
#  It is esp. important, to have correct metadata, for distributions like
# Fedora which don't keep old packages around. If you don't like this checking
# interupting your command line usage, it's much better to have something
# manually check the metadata once an hour (yum-updatesd will do this).
# metadata_expire=90m
# PUT YOUR REPOS HERE OR IN separate files named file.repo
# in /etc/yum.repos.d

=============================================

继续运行，出现如下错误

[root@localhost ~]# yum install lrzsz
Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock error was
14: curl#6 - "Could not resolve host: mirrorlist.centos.org; Unknown error"
 One of the configured repositories failed (Unknown),
 and yum doesn't have enough cached data to continue. At this point the only
 safe thing yum can do is fail. There are a few ways to work "fix" this:

==============================================

原因：没有配置resolv.conf

解决方法:

到/etc目录下配置resolv.conf加入nameserver IP,如：

[root@localhost ~]# vi /etc/resolv.conf
nameserver 8.8.8.8
nameserver 8.8.4.4
search localdomain

保存再次运行命令就可以。

以上就是“centos7 yum fastestmirror不能使用怎么办”的详细内容，更多请关注1818ip网其它相关文章！