環境介紹

操作系統	IP地址	主機名	備注
Redhat7.4	192.168.10.21	yum-server	?
Redhat7.4	192.168.10.22	jump01	?

環境準備

1. 查看系統版本

[root@yum-server ~]# cat /etc/redhat-release?

Red Hat Enterprise Linux Server release 7.4 (Maipo)

2. 關閉防火墻

[root@yum-server ~]# systemctl stop ebtables firewalld

[root@yum-server ~]# systemctl disable ebtables firewalld

3. 關閉selinux

[root@yum-server ~]# sed -i 's/enforcing/disabled/g' /etc/sysconfig/selinux?

[root@yum-server ~]# setenforce 0

操作步驟

1. 備份系統自帶的yum源

[root@yum-server ~]# tar -zcvf Centos-bak.tar.gz /etc/yum.repos.d/*

2. 修改yum源為阿里云yum源

[root@yum-server ~]# wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

[root@yum-server ~]# wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo

或者

[root@yum-server ~]# curl -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

[root@yum-server ~]# curl -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo ?

3. 檢測阿里云倉庫源是否正常

[root@yum-server?~]#?yum?repolistLoaded?plugins:?fastestmirror,?product-id,?search-disabled-repos,?subscription-managerThis?system?is?not?registered?with?an?entitlement?server.?You?can?use?subscription-manager?to?register.Loading?mirror?speeds?from?cached?hostfile?*?base:?mirrors.aliyun.com?*?extras:?mirrors.aliyun.com?*?updates:?mirrors.aliyun.comrepo?id?????????????????????????????????????????repo?name???????????????????????????????????????????????????????????????statusbase/$releasever/x86_64?????????????????????????CentOS-$releasever?-?Base?-?mirrors.aliyun.com??????????????????????????10,019epel/x86_64?????????????????????????????????????Extra?Packages?for?Enterprise?Linux?7?-?x86_64??????????????????????????13,341extras/$releasever/x86_64???????????????????????CentOS-$releasever?-?Extras?-?mirrors.aliyun.com???????????????????????????435updates/$releasever/x86_64??????????????????????CentOS-$releasever?-?Updates?-?mirrors.aliyun.com????????????????????????2,500repolist:?26,295?

4. 安裝相關需要軟件

[root@yum-server ~]# yum install -y wget make cmake gcc gcc-c++ pcre-devel zlib-devel openssl openssl-devel createrepo yum-utils

yum-utils：reposync同步工具

createrepo：編輯yum庫工具

plugin-priorities：控制yum源更新優先級工具，這個工具可以用來控制進行yum源檢索的先后順序，建議可以用在client端。

注：由于很多人喜歡最小化安裝，上邊軟件是一些常用環境。

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5. 創建本地目錄

[root@yum-server ~]# mkdir /mirrors/

6. 同步到本地目錄

[root@yum-server ~]# reposync -r base -p /mirrors/

注：不用擔心沒有創建相關目錄，系統自動創建相關目錄，并下載，時間較長請耐心等待。

可以用 repo -r --repoid=repoid指定要查詢的repo id，可以指定多個（# reposync -r base -p /mirror #這里同步base目錄到本地）

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7. 創建索引

createrepo語法：

格式：createrepo -po? 源目錄? 索引元數據的輸出位置目錄

[root@yum-server ~]# createrepo -po /mirrors/base/? /mirrors/base/

[root@yum-server ~]# createrepo -po /mirrors/epel/? /mirrors/epel/

8. 更新源數據

[root@yum-server ~]# createrepo --update /mirrors/base

[root@yum-server ~]# createrepo --update /mirrors/epel

[root@yum-server ~]# createrepo --update /mirrors/extras

[root@yum-server ~]# createrepo --update /mirrors/updates

9. 創建定時任務腳本

[root@yum-server ~]# vim /mirrors/centos_yum_update.sh

#!/bin/bash

echo 'Updating Aliyum Source'

DATETIME=`date +%F_%T`

exec > /var/log/aliyumrepo_$DATETIME.log

???? reposync -np /mirrors

if [ $? -eq 0 ];then

????? createrepo --update /mirrors/base

????? createrepo --update /mirrors/extras

????? createrepo --update /mirrors/updates

????? createrepo --update /mirrors/epel

????? echo "SUCESS: $DATETIME aliyum_yum update successful"

? else

????? echo "ERROR: $DATETIME aliyum_yum update failed"

fi

10. 給腳本添加執行權限

[root@yum-server ~]# chmod a+x /mirrors/centos_yum_update.sh

11. 將腳本加入到定時任務中

[root@yum-server ~]# crontab -e

# Updating Aliyum Source

00 22 * * 6? /bin/bash /mirrors/centos_yum_update.sh

解釋：每月第一個周六的22點更新阿里云yum源

12. 安裝nginx，提供

[root@yum-server ~]# yum -y install nginx

13. 配置nginx的服務，讓其家目錄為：/mirrors

[root@yum-server ~]# vim /etc/nginx/nginx.conf?

user nginx;

worker_processes auto;

error_log /var/log/nginx/error.log warn;

pid /var/run/nginx.pid;

events {

??? worker_connections 1024;

}

http {

??? include /etc/nginx/mime.types;

??? default_type application/octet-stream;

??? log_format main '$remote_addr - $remote_user [$time_local] "$request" '

????????????????????? '$status $body_bytes_sent "$http_referer" '

????????????????????? '"$http_user_agent" "$http_x_forwarded_for"';

??? access_log /var/log/nginx/access.log main;

??? sendfile on;

??? #tcp_nopush on;

??? keepalive_timeout 65;

??? gzip on;

??? include /etc/nginx/conf.d/*.conf;

}

server {

??? listen 80;

??? server_name localhost;

??? root /mirrors;

??? index index.html index.htm;

??? #charset koi8-r;

??? #access_log /var/log/nginx/yum.access.log main;

??? location / {

??????? autoindex on;

??????? autoindex_exact_size off;

??????? autoindex_localtime on;

??????? charset utf-8,gbk;

??? }

??? #error_page 404 /404.html;

??? # redirect server error pages to the static page /50x.html

??? #

??? error_page 500 502 503 504 /50x.html;

??? location = /50x.html {

??????? root /usr/share/nginx/html;

??? }

}

14. 啟動nginx服務

[root@yum-server ~]# systemctl restart nginx

[root@yum-server ~]# systemctl enable nginx

客戶端測試

1. 修改客戶端yum源，并指向本地搭建的yum源主機

[root@jump01 ~]# vim /etc/yum.repos.d/centos_local.repo?

[base]

name=base

baseurl=http://192.168.10.21/base/

failovermethod=priority

enabled=1

gpgcheck=0

[extras]

name=extras

baseurl=http://192.168.10.21/extras/

failovermethod=priority

enabled=1

gpgcheck=0

[updates]

name=updates

baseurl=http://192.168.10.21/updates/

failovermethod=priority

enabled=1

gpgcheck=0

[epel]

name=epel

baseurl=http://192.168.10.21/epel/

failovermethod=priority

enabled=1

gpgcheck=0

2. 生成yum緩存

[root@jump01 ~]# yum makecache?

3. 安裝memcached測試

[root@jump01 ~]# yum -y install memcached

總結

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