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不区分发行版,先备份 /etc/ntp.conf,然后将其内容替换为如下:
# ntp.conf
#
# ntpd config for aliyun ecs.
#
# 6LAN+6LAN+3WAN
# shijun.cao@alibaba-inc.com
# 2014.8.11
#
driftfile /var/lib/ntp/drift
pidfile /var/run/ntpd.pid
logfile /var/log/ntp.log
# Access Control Support
restrict default ignore
restrict -6 default ignore
restrict 127.0.0.1
restrict 192.168.0.0 mask 255.255.0.0 nomodify notrap nopeer noquery
restrict 172.16.0.0 mask 255.240.0.0 nomodify notrap nopeer noquery
restrict 100.64.0.0 mask 255.192.0.0 nomodify notrap nopeer noquery
restrict 10.0.0.0 mask 255.0.0.0 nomodify notrap nopeer noquery
restrict ntp1.aliyun.com nomodify notrap nopeer noquery
restrict ntp2.aliyun.com nomodify notrap nopeer noquery
restrict ntp3.aliyun.com nomodify notrap nopeer noquery
restrict ntp4.aliyun.com nomodify notrap nopeer noquery
restrict ntp5.aliyun.com nomodify notrap nopeer noquery
restrict ntp6.aliyun.com nomodify notrap nopeer noquery
# local clock
server 127.127.1.0
fudge 127.127.1.0 stratum 10
#public ntp server
server ntp1.aliyun.com iburst minpoll 4 maxpoll 10
server ntp2.aliyun.com iburst minpoll 4 maxpoll 10
server ntp3.aliyun.com iburst minpoll 4 maxpoll 10
server ntp4.aliyun.com iburst minpoll 4 maxpoll 10
server ntp5.aliyun.com iburst minpoll 4 maxpoll 10
server ntp6.aliyun.com iburst minpoll 4 maxpoll 10
#Private ntp server
server ntp1.cloud.aliyuncs.com iburst minpoll 4 maxpoll 10
server ntp2.cloud.aliyuncs.com iburst minpoll 4 maxpoll 10
server ntp3.cloud.aliyuncs.com iburst minpoll 4 maxpoll 10
server ntp4.cloud.aliyuncs.com iburst minpoll 4 maxpoll 10
server ntp5.cloud.aliyuncs.com iburst minpoll 4 maxpoll 10
server ntp6.cloud.aliyuncs.com iburst minpoll 4 maxpoll 10
#New private ntp server
server ntp7.cloud.aliyuncs.com iburst minpoll 4 maxpoll 10
server ntp8.cloud.aliyuncs.com iburst minpoll 4 maxpoll 10
server ntp9.cloud.aliyuncs.com iburst minpoll 4 maxpoll 10
server ntp10.cloud.aliyuncs.com iburst minpoll 4 maxpoll 10
server ntp11.cloud.aliyuncs.com iburst minpoll 4 maxpoll 10
server ntp12.cloud.aliyuncs.com iburst minpoll 4 maxpoll 10
0 . 先确认镜像当前的 Linux 系统发行版和版本号。
如果有 lsb_release 命令,执行:
lsb_release -a
否则执行
cat /etc/issue
1 . 对于 CentOS,备份 /etc/yum.repos.d/ 下的 CentOS-Base.repo 和 epel.repo 文件,根据 CentOS 版本,执行如下相应的命令:
CentOS 5:
wget -qO /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-5.repo
wget -qO /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-5.repo
CentOS 6:
wget -qO /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo
wget -qO /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-6.repo
CentOS 7:
wget -qO /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
wget -qO /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
repo 文件下载完成后,执行:
yum makecache
2 . 对于 Aliyun 5.7,备份 /etc/yum.repos.d/CentOS-Base.repo ,然后执行:
wget -qO /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/aliyun-5.repo
repo 文件下载完成后,执行:
yum makecache
3 . 对于 Ubuntu,备份 /etc/apt/sources.list 文件,根据发行版版本,执行命令:
ubuntu12.04:
wget -qO /etc/apt/sources.list http://mirrors.aliyun.com/repo/ubuntu1204-lts.list
ubuntu14.04:
wget -qO /etc/apt/sources.list http://mirrors.aliyun.com/repo/ubuntu1404-lts.list
然后执行:
apt-get update
4 . 对于 Debian,备份 /etc/apt/sources.list 文件,根据发行版版本,执行命令:
debian6:
wget -qO /etc/apt/sources.list http://mirrors.aliyun.com/repo/debian6-lts.list
debian7:
wget -qO /etc/apt/sources.list http://mirrors.aliyun.com/repo/debian7-lts.list
然后执行:
apt-get update
主要修复目前已知的重大安全漏洞,需要升级的软件包括: bash 、glibc 、 openssl 、wget 、ntp 。
在执行如下命令之前,需要确保系统当前的软件源已经设置正确。
1 . 对于 CentOS 和 Aliyun Linux,执行:
yum update bash glibc openssl wget ntp
2 . 对于 Ubuntu 和 Debian,执行:
apt-get install bash libc6 libc-bin openssl wget ntp
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原文地址:http://www.cnblogs.com/chenshoubiao/p/4780428.html