"Couldn't resolve host 'mirrors.aliyun.com'"
1.yum 安装出错
[root@iz25m0z7ik3z ~]#yum install mysql
[root@iZ25m0z7ik3Z ~]#yum install mysql Loaded plugins: security http://mirrors.aliyun.com/centos/6/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirrors.aliyun.com'" Trying other mirror. http://mirrors.aliyuncs.com/centos/6/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirrors.aliyuncs.com'" Trying other mirror. http://mirrors.aliyun.com/epel/6/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirrors.aliyun.com'" Trying other mirror. http://mirrors.aliyuncs.com/epel/6/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirrors.aliyuncs.com'" Trying other mirror. http://mirrors.aliyun.com/centos/6/extras/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirrors.aliyun.com'" Trying other mirror. http://mirrors.aliyuncs.com/centos/6/extras/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirrors.aliyuncs.com'" Trying other mirror. http://mirrors.aliyun.com/centos/6/updates/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirrors.aliyun.com'" Trying other mirror. http://mirrors.aliyuncs.com/centos/6/updates/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirrors.aliyuncs.com'" Trying other mirror. Setting up Install Process Package mysql-5.1.73-5.el6_6.x86_64 already installed and latest version Nothing to do
2. 修改dns
[root@iz25m0z7ik3z ~]# vi /etc/sysconfig/network-scripts/ifcfg-eth0
文末添加
DNS1=8.8.8.8
DNS2=8.8.4.4
3. 重启network 服务
[root@iz25m0z7ik3z ~]# service network restart
Shutting down interface eth0: Device state: 3 (disconnected)
[ OK ]
Shutting down interface eth1: [ OK ]
Shutting down loopback interface: [ OK ]
FATAL: Module off not found.
Bringing up loopback interface: [ OK ]
Bringing up interface eth0: Active connection state: activated
Active connection path: /org/freedesktop/NetworkManager/ActiveConnection/2
[ OK ]
Bringing up interface eth1: RTNETLINK answers: File exists
RTNETLINK answers: File exists
[ OK ]
FATAL: Module off not found.
4. 如下提示表示network 服务 与 NetworkManager服务冲突
Bringing up interface eth0: Active connection state: activated
Active connection path: /org/freedesktop/NetworkManager/ActiveConnection/2
[ OK ]
应该是之前安装了图形界面“X Window System”导致。
5. 停止NetworkManager
[root@iz25m0z7ik3z ~]# service NetworkManager stop
Stopping NetworkManager daemon: [ OK ]
6. 再次重启 network 服务
[root@iz25m0z7ik3z ~]# service network restart
Shutting down interface eth0: [ OK ]
Shutting down interface eth1: [ OK ]
Shutting down loopback interface: [ OK ]
FATAL: Module off not found.
Bringing up loopback interface: [ OK ]
Bringing up interface eth0: Determining if ip address 10.44.153.37 is already in use for device eth0...
[ OK ]
Bringing up interface eth1: Determining if ip address 101.200.188.182 is already in use for device eth1...
RTNETLINK answers: File exists
[ OK ]
FATAL: Module off not found.
7. 该警告一般是由于网卡解析arp协议导致的，可在网卡的配置文件中加入ARPCHECK=NO参数来屏蔽该检查
[root@iz25m0z7ik3z ~]# vi /etc/sysconfig/network-scripts/ifcfg-eth0
文末添加
ARPCHECK=no
再次启动网卡
Shutting down interface eth0: [ OK ]
Shutting down interface eth1: [ OK ]
Shutting down loopback interface: [ OK ]
FATAL: Module off not found.
Bringing up loopback interface: [ OK ]
Bringing up interface eth0: [ OK ]
Bringing up interface eth1: RTNETLINK answers: File exists
[ OK ]
FATAL: Module off not found.
至此yum update 一切正常。