问题：
http://mirrors.cloud.aliyuncs.com/centos/7/os/x86_64/Packages/quota-nls-4.01-19.el7.noarch.rpm: [Errno 14] curl#6 - “Could not resolve host: mirrors.cloud.aliyuncs.com; Unknown error”
正在尝试其它镜像。
quota-4.01-19.el7.x86_64.rpm FAILED
http://mirrors.aliyuncs.com/centos/7/os/x86_64/Packages/quota-4.01-19.el7.x86_64.rpm: [Errno 14] curl#6 - “Could not resolve host: mirrors.aliyuncs.com; Unknown error”
正在尝试其它镜像。
tcp_wrappers-7.6-77.el7.x86_64 FAILED
http://mirrors.aliyuncs.com/centos/7/os/x86_64/Packages/tcp_wrappers-7.6-77.el7.x86_64.rpm: [Errno 14] curl#6 - “Could not resolve host: mirrors.aliyuncs.com; Unknown error”
正在尝试其它镜像。
rpcbind-0.2.0-49.el7.x86_64.rp FAILED
http://mirrors.cloud.aliyuncs.com/centos/7/os/x86_64/Packages/rpcbind-0.2.0-49.el7.x86_64.rpm: [Errno 14] curl#6 - “Could not resolve host: mirrors.cloud.aliyuncs.com; Unknown error”
正在尝试其它镜像。
安装 1 软件包 (+15 依赖软件包)
总下载量：1.5 M
安装大小：4.3 M
Downloading packages:
gssproxy-0.7.0-29.el7.x86_64.r FAILED
http://mirrors.aliyun.com/centos/7/os/x86_64/Packages/gssproxy-0.7.0-29.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: mirrors.aliyun.com; Unknown error"
正在尝试其它镜像。
keyutils-1.5.8-3.el7.x86_64.rp FAILED
http://mirrors.aliyun.com/centos/7/os/x86_64/Packages/keyutils-1.5.8-3.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: mirrors.aliyun.com; Unknown error"
正在尝试其它镜像。
libbasicobjects-0.1.1-32.el7.x FAILED
http://mirrors.aliyun.com/centos/7/os/x86_64/Packages/libbasicobjects-0.1.1-32.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: mirrors.aliyun.com; Unknown error"
正在尝试其它镜像。
libcollection-0.7.0-32.el7.x86 FAILED
http://mirrors.aliyun.com/centos/7/os/x86_64/Packages/libcollection-0.7.0-32.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: mirrors.aliyun.com; Unknown error"
正在尝试其它镜像。
libtirpc-0.2.4-0.16.el7.x86_64 FAILED
http://mirrors.aliyun.com/centos/7/os/x86_64/Packages/libtirpc-0.2.4-0.16.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: mirrors.aliyun.com; Unknown error"
正在尝试其它镜像。
libverto-libevent-0.2.5-4.el7. FAILED
http://mirrors.aliyun.com/centos/7/os/x86_64/Packages/libverto-libevent-0.2.5-4.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: mirrors.aliyun.com; Unknown error"
正在尝试其它镜像。
rpcbind-0.2.0-49.el7.x86_64.rp FAILED
http://mirrors.aliyun.com/centos/7/os/x86_64/Packages/rpcbind-0.2.0-49.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: mirrors.aliyun.com; Unknown error"
正在尝试其它镜像。
tcp_wrappers-7.6-77.el7.x86_64 FAILED
http://mirrors.aliyun.com/centos/7/os/x86_64/Packages/tcp_wrappers-7.6-77.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: mirrors.aliyun.com; Unknown error
keyutils-1.5.8-3.el7.x86_64.rp FAILED
http://mirrors.aliyuncs.com/centos/7/os/x86_64/Packages/keyutils-1.5.8-3.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: mirrors.aliyuncs.com; Unknown error"
正在尝试其它镜像。
libbasicobjects-0.1.1-32.el7.x FAILED
http://mirrors.cloud.aliyuncs.com/centos/7/os/x86_64/Packages/libbasicobjects-0.1.1-32.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: mirrors.cloud.aliyuncs.com; Unknown error"
正在尝试其它镜像。
libcollection-0.7.0-32.el7.x86 FAILED
http://mirrors.aliyuncs.com/centos/7/os/x86_64/Packages/libcollection-0.7.0-32.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: mirrors.aliyuncs.com; Unknown error"
正在尝试其它镜像。
libini_config-1.3.1-32.el7.x86 FAILED
http://mirrors.aliyuncs.com/centos/7/os/x86_64/Packages/libini_config-1.3.1-32.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: mirrors.aliyuncs.com; Unknown error"
正在尝试其它镜像。
libpath_utils-0.2.1-32.el7.x86 FAILED
http://mirrors.aliyuncs.com/centos/7/os/x86_64/Packages/libpath_utils-0.2.1-32.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: mirrors.aliyuncs.com; Unknown error"
正在尝试其它镜像。
libnfsidmap-0.25-19.el7.x86_64 FAILED
http://mirrors.cloud.aliyuncs.com/centos/7/os/x86_64/Packages/libnfsidmap-0.25-19.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: mirrors.cloud.aliyuncs.com; Unknown error"
正在尝试其它镜像。
libref_array-0.1.5-32.el7.x86_ FAILED
http://mirrors.cloud.aliyuncs.com/centos/7/os/x86_64/Packages/libref_array-0.1.5-32.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: mirrors.cloud.aliyuncs.com; Unknown error"
正在尝试其它镜像。
nfs-utils-1.3.0-0.68.el7.x86_6 FAILED
http://mirrors.cloud.aliyuncs.com/centos/7/os/x86_64/Packages/nfs-utils-1.3.0-0.68.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: mirrors.cloud.aliyuncs.com; Unknown error"
主要报错
nfs-utils-1.3.0-0.68.el7.x86_6 FAILED
http://mirrors.cloud.aliyuncs.com/centos/7/os/x86_64/Packages/nfs-utils-1.3.0-0.68.el7.x86_64.rpm: [Errno 14] curl#6 - "Could not resolve host: mirrors.cloud.aliyuncs.com; Unknown error"
解决
[root@localhost ~]# vim /etc/resolv.conf
nameserver 8.8.8.8
nameserver 114.114.114.114
之后就可以正常下载了