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大家都知道,使用yum来安装或者更新现有的包是最方便不过的了,但是有的时候服务器出于安全方面考虑,一般只许进不许出,那怎么办?那有同学就说了,这个简单啊,搞个本地源不就好了,其实这个方法不是不行,只不过ISO自带的包一般都比较旧,那我想更新咋办?所以还是不能满足需求。
既然服务器不让我通过互联网下载需要的包,那我直接把网上的源搬到我本地服务器不就好了,我局域网安装或者更新也快,前提是,你得准备一台放置yum源的服务器,磁盘空间要够大,500G以上,最最重要的是,能访问互联网!
yum install -y httpd rsync
vi /etc/httpd/conf/httpd.conf
把 #ServerName www.example.com:80
改成 ServerName localhost:80
把欢迎页删掉
rm -f /etc/httpd/conf.d/welcome.conf
新建一个centos目录放置从互联网上同步下来的rpm包
mkdir /var/www/html/centos
把以下同步脚本放置到合适的目录下即可,别忘了添加执行权限
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~开始~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#!/bin/bash
YUM_SITE="rsync://mirrors.kernel.org/centos/"
#存放路径,我这里直接用的是httpd默认根目录
LOCAL_PATH="/var/www/html/centos/"
#需要同步哪些目录
LOCAL_VER=‘./‘
BW_limit=2048
LOCK_FILE="/var/log/yum_server.pid"
RSYNC_PATH=""
# check update yum server pid
MY_PID=$$
if [ -f $LOCK_FILE ]; then
get_pid=`/bin/cat $LOCK_FILE`
get_system_pid=`/bin/ps -ef|grep -v grep|grep $get_pid|wc -l`
if [ $get_system_pid -eq 0 ] ; then
echo $MY_PID>$LOCK_FILE
else
echo "Have update yum server now!"
exit 1
fi
else
echo $MY_PID>$LOCK_FILE
fi
# check rsync tool
if [ -z $RSYNC_PATH ]; then
RSYNC_PATH=`/usr/bin/whereis rsync|awk ‘ ‘‘{print $2}‘`
if [ -z $RSYNC_PATH ]; then
echo ‘Not find rsync tool.‘
echo ‘use comm: yum install -y rsync‘
fi
fi
# sync yum source
for VER in $LOCAL_VER;
do
# Check whether there are local directory
if [ ! -d "$LOCAL_PATH$VER" ] ; then
echo "Create dir $LOCAL_PATH$VER"
`/bin/mkdir -p $LOCAL_PATH$VER`
fi
# sync yum source
echo "Start sync $LOCAL_PATH$VER"
$RSYNC_PATH -avrtH --delete --bwlimit=$BW_limit --exclude "isos" $YUM_SITE$VER $LOCAL_PATH
done
# clean lock file
`/bin/rm -f $LOCK_FILE`
echo "rsync end $(date +%Y-%m-%d_%k:%M:%S)" >> /var/www/html/centos/centos_rsync_is_end.txt
exit 1
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~结束~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
同步的过程可能会很久,整个yum源有400多G,所以脚本会在全部同步完以后,生成一个时间文件在/var/www/html/centos_rsync_is_end.txt
假设你已经全部同步完,就启动httpd服务
service httpd start
然后把以下repo文件放置到你的yum源客户端的/etc/yum.repo.d/下,后缀名必须是repo,我这边yum源服务端IP是192.168.1.69
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~开始~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[base]
name=CentOS - base
baseurl=http://192.168.1.69/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=http://192.168.1.69/centos/RPM-GPG-KEY-CentOS-6
[updates]
name=CentOS - updates
baseurl=http://192.168.1.69/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=http://192.168.1.69/centos/RPM-GPG-KEY-CentOS-6
[extras]
name=CentOS - extras
baseurl=http://192.168.1.69/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=http://192.168.1.69/centos/RPM-GPG-KEY-CentOS-6
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~结束~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
到这里你就基本上完成了一个本地yum源服务器的搭建,现在还少一个定时任务,让rsync每天凌晨3点去同步一次互联网上的yum源
crontab -e
添加一条定时任务
* 3 * * * /bin/bash /etc/yum.repos.d/centos.yum.sh > /dev/null &
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原文地址:http://www.cnblogs.com/LinuxCool/p/4712809.html