基于CentOS7搭建离线内网yum源

因单位工作环境无法连接外网，自行架设一台离线yum源

1.准备一台可连接外网CentOS7主机，安装nginx，createrepo

sudo  yum install nginx
sudo  yum install createrepo

     安装中可能报  :已加载插件：fastestmirror, langpacks Loading mirror speeds from cached hostfile 没有可用软件包 nginx。 错误：无须任何处理

解决办法：

添加nginx源：

rpm -ivh http://nginx.org/packages/centos/7/noarch/RPMS/nginx-release-centos-7-0.el7.ngx.noarch.rpm

然后再执行安装

配置nginx:

查看nginx安装目录：

whereis nginx
nginx: /usr/sbin/nginx /usr/lib64/nginx /etc/nginx /usr/share/nginx /usr/share/man/man8/nginx.8.gz /usr/share/man/man3/nginx.3pm.gz

进入配置目录添加配置:

添加autoindex on;autoindex_exact_size on;autoindex_localtime on开启文件大小以及修改时间的显示

cd /etc/nginx
vim nginx.conf
server {
        listen       80 default_server;
        listen       [::]:80 default_server;
        server_name  _;
        root         /usr/share/nginx/html;

        # Load configuration files for the default server block.
        include /etc/nginx/default.d/*.conf;

        location / {
        }
	autoindex on;
	autoindex_exact_size on;
	autoindex_localtime on;

        error_page 404 /404.html;
            location = /40x.html {
        }

页面添加目录超链接：

cd /usr/share/nginx/html
vim index.html

添加一行

CentOS-YUM
   

启动nginx并设置开机启动：

sudo systemctl start nginx.service
sudo systemctl enable nginx.service

2.关闭防火墙

查看防火墙状态：

systemctl status firewalld.service

 关闭防火墙：

systemctl stop firewalld.service  

关闭开机启动防火墙：

systemctl disable firewalld.service

修改SELINUX设置：

vim /etc/sysconfig/selinux

并修改SELINUX=enforce为SELINUX=disabled

3.在html包下建立存放路径

mkdir -p /usr/share/nginx/html/CentOS-YUM/version_7.2/64bit/

给目录添加读写可执行权限

chmod -R +x /usr/share/nginx/html/

4.同步阿里云源（base，updates，extras，epel）

清除/etc/yum.repos.d/下的repo

获取阿里云源repo

wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
wget -O /etc/yum.repos.d/CentOS-epel.repo http://mirrors.aliyun.com/repo/epel-7.repo

同步下载包

reposync -p /usr/share/nginx/html/CentOS-YUM/version_7.2/64bit/

5.建仓（供client端检索使用）

createrepo -p /usr/share/nginx/html/CentOS-YUM/version_7.2/64bit/base/Packages
createrepo -p /usr/share/nginx/html/CentOS-YUM/version_7.2/64bit/extras/Packages
createrepo -p /usr/share/nginx/html/CentOS-YUM/version_7.2/64bit/updates/Packages
createrepo -p /usr/share/nginx/html/CentOS-YUM/version_7.2/64bit/epel

6.client端yum配置

备份原有repo文件

mkdir /back
mv ./* /back

新建new.repo文件

vim new.repo
[new_base]
name=source_from_loaclserver
baseurl=http://192.168.110.132/CentOS-YUM/version_7.2/64bit/base/Packeages
gpgcheck=0
enable=1
priority=1

[new_extras]
name=source_from_loaclserver
baseurl=http://192.168.110.132/CentOS-YUM/version_7.2/64bit/extras/Packeages
gpgcheck=0
enable=1
priority=2

[new_updates]
name=source_from_loaclserver
baseurl=http://192.168.110.132/CentOS-YUM/version_7.2/64bit/updates/Packeages
gpgcheck=0
enable=1
priority=3

[new_epel]
name=source_from_loaclserver
baseurl=http://192.168.110.132/CentOS-YUM/version_7.2/64bit/epel/Packeages
gpgcheck=0
enable=1
priority=4

[new_base]#这个是本源的名字，不能和其他的重复（随便，不重复）
name=source_from_loaclserver #名字（随便）
baseurl=http://192.168.110.132/CentOS-YUM/version_7.2/64bit/extras/Packeages #上方步骤一挂载镜像地址
gpgcheck=0 #安全检测 1-开启 0-不开启

enabled=1 #yum源是否启用 1-启用 0-不启用
priority=1#检索优先级

清理本地YUM缓存和重建

yum clean all
yum makecache

7.测试安装

yum install gcc