Lately, I was trying to install Apache web server in Linux environment and got the following error.

[[email protected] ~]# yum install httpd
Loaded plugins: fastestmirror, langpacks
Could not retrieve mirrorlist error was
14: curl#6 - "Could not resolve host:; No address associated with hostname"
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:
  1. Contact the upstream for the repository and get them to fix the problem.
  1. Reconfigure the baseurl/etc. for the repository, to point to a working
       upstream. This is most often useful if you are using a newer
       distribution release than is supported by the repository (and the
       packages for the previous distribution release still work).
  1. Disable the repository, so yum won’t use it by default. Yum will then
       just ignore the repository until you permanently enable it again or use
       --enablerepo for temporary usage:
           yum-config-manager --disable <repoid>
  1. Configure the failing repository to be skipped, if it is unavailable.
       Note that yum will try to contact the repo. when it runs most commands,
       so will have to try and fail each time (and thus. yum will be be much
       slower). If it is a very temporary problem though, this is often a nice
           yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=true

Cannot find a valid baseurl for repo: base/7/x86_64
[[email protected] ~]#

This usually happens when the server can’t connect to the Internet because of can’t resolve to name server.


Take a look at /etc/resolv.conf file. I had following

; generated by /usr/sbin/dhclient-script
search localdomain

Keep “search localdomain” at bottom, so something like below

; generated by /usr/sbin/dhclient-script
search localdomain

Save the file and try to perform yum. It was all good to me.

Note: nameserver may differ as shown in the example above. The point here is to keep localhost at bottom and thing should move.

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