Подобная тему здесь Centos 6.3 - настройка yum
[root@a64 /]# yum update bind
Загружены модули: fastestmirror
Loading mirror speeds from cached hostfile
* base: centos-mirror.rbc.ru
* epel: mirror.logol.ru
* extras: mirror.corbina.net
* updates: centos-mirror.rbc.ru
No packages marked for update
[root@a64 /]# cat /etc/redhat-release
CentOS Linux release 7.1.1503 (Core)
[root@a64 /]# named -v
BIND 9.9.4-RedHat-9.9.4-18.el7_1.3 (Extended Support Version)
[root@a64 /]# uname -a
Linux a64.fvds.ru 2.6.32-042stab108.2 #1 SMP Tue May 12 18:07:50 MSK 2015 x86_64 x86_64 x86_64 GNU/Linux
[root@a64 /]# yum repolist
Загружены модули: fastestmirror
Loading mirror speeds from cached hostfile
* base: centos-mirror.rbc.ru
* epel: mirror.logol.ru
* extras: centos-mirror.rbc.ru
* updates: mirror.logol.ru
Идентификатор репозитория репозиторий состояние
base/7/x86_64 CentOS-7 - Base 8 652
epel/x86_64 Extra Packages for Enterprise 8 436
extras/7/x86_64 CentOS-7 - Extras 179
ispsystem-base/7/x86_64 ispsystem-base 47
ispsystem-beta/7/x86_64 ispsystem-beta 4 239
updates/7/x86_64 CentOS-7 - Updates 1 200
vz-base vz-base 1
vz-updates vz-updates 0
repolist: 22 754
[root@a64 /]# yum clean all
Загружены модули: fastestmirror
Сброс источников:base epel extras ispsystem-base ispsystem-beta
: updates vz-base vz-updates
Cleaning up everything
Cleaning up list of fastest mirrors
[root@a64 /]# yum update
Загружены модули: fastestmirror
base | 3.6 kB 00:00
epel/x86_64/metalink | 19 kB 00:00
epel | 4.4 kB 00:00
extras | 3.4 kB 00:00
ispsystem-base | 951 B 00:00
ispsystem-beta | 951 B 00:00
updates | 3.4 kB 00:00
vz-base | 951 B 00:00
vz-updates | 951 B 00:00
(1/6): base/7/x86_64/group_gz | 154 kB 00:00
(2/6): epel/x86_64/group_gz | 169 kB 00:00
(3/6): extras/7/x86_64/primary_db | 74 kB 00:00
(4/6): updates/7/x86_64/primary_db | 3.2 MB 00:00
(5/6): base/7/x86_64/primary_db | 5.1 MB 00:01
(6/6): epel/x86_64/primary_db | 3.7 MB 00:01
(1/6): epel/x86_64/updateinfo | 455 kB 00:00
(2/6): ispsystem-base/7/x86_64/primary | 11 kB 00:00
(3/6): epel/x86_64/pkgtags | 1.6 MB 00:00
(4/6): ispsystem-beta/7/x86_64/primary | 527 kB 00:00
(5/6): vz-base/primary | 723 B 00:00
(6/6): vz-updates/primary | 157 B 00:00
Determining fastest mirrors
* base: centos-mirror.rbc.ru
* epel: mirror.logol.ru
* extras: centos-mirror.rbc.ru
* updates: mirror.logol.ru
ispsystem-base 47/47
ispsystem-beta 4239/4239
vz-base 1/1
No packages marked for update
[root@a64 /]# yum-config-manager --enable cr
-bash: yum-config-manager: команда не найдена
В linux разбираюсь слабо...