No pude resolve host: mirrorlist.centos.org; Sin dirección asociadaated con nombre de host”

Lately, I was trying to instalar el servidor web Apache en un entorno Linux y obtuvo el siguiente error.

[root@localhost ~]# yum install httpd 
Loaded plugins: fastestmirror, langpacks Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os 
error was 14: curl#6 - "Could not resolve host: mirrorlist.centos.org; 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:
Contact the upstream for the repository and get them to fix the problem.
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).
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>
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 compromise:            
yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=true Cannot find a valid baseurl for repo: base/7/x86_64 
[root@localhost ~]#

este usually sucede cuando el servidor no puede conectarse a Internet debido a que no puede resolve al servidor de nombres.

Solución

Eche un vistazo a /etc/resolv.conf expediente. Yo había seguido

; generated by /usr/sbin/dhclient-script
search localdomain
nameserver 8.8.8.8

Mantenga "buscar dominio local" en la parte inferior, así que algo como a continuación

; generated by /usr/sbin/dhclient-script
nameserver 8.8.8.8
search localdomain

Guarde el archivo e intente realizar yum. Todo fue bueno para mi.

Nota: el servidor de nombres puede diferir como se muestra en el ejemplo anterior. El punto aquí es mantener localhost en la parte inferior y las cosas deberían moverse.

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