本篇主要写了怎么搭建自定义的YUM源，在一个拥有大量本地网络的主机环境中，可以减少对外网的依赖。

Server

安装 vsftp 包

[[email?protected] ~]# yum install vsftpd -y

添加相关资源包

• 创建需要存放的目录

[[email?protected] ~]# mkdir /var/ftp/centos7 /var/ftp/others
[[email?protected] ~]# ls /var/ftp/
centos7  others  pub

• 拷贝镜像文件内容至相关目录

[[email?protected] ~]# mount /dev/cdrom /mnt/
mount: /dev/sr0 is write-protected,mounting read-only
[[email?protected] ~]# cp -r /mnt/* /var/ftp/centos7/

• 给others目录创建repodata

[[email?protected] ~]# createrepo -g /var/ftp/centos7/repodata/repomd.xml /var/ftp/others/
Saving Primary metadata
Saving file lists metadata
Saving other metadata
Generating sqlite DBs
Sqlite DBs complete

• 检查文件是否齐全

[[email?protected] ~]# ls /var/ftp/centos7/
CentOS_BuildTag  EFI  EULA  GPL  images  isolinux  LiveOS  Packages  repodata  RPM-GPG-KEY-CentOS-7  RPM-GPG-KEY-CentOS-Testing-7  TRANS.TBL

[[email?protected] ~]# ls /var/ftp/others/
repodata

开启服务

[[email?protected] ~]# systemctl enable vsftpd
Created symlink from /etc/systemd/system/multi-user.target.wants/vsftpd.service to /usr/lib/systemd/system/vsftpd.service.
[[email?protected] ~]# systemctl start vsftpd
[[email?protected] ~]# netstat -ntuap | grep vsftpd
tcp6       0      0 :::21                   :::*                    LISTEN      35971/vsftpd

关闭防火墙

[[email?protected] ~]# systemctl stop firewalld
[[email?protected] ~]# setenforce 0

Client

安装 ftp 包

[[email?protected] ~]# yum install ftp -y

匿名登录查看

[[email?protected] ~]# ftp 192.168.28.128
Connected to 192.168.28.128 (192.168.28.128).
220 (vsFTPd 3.0.2)
Name (192.168.28.128:root): ftp
331 Please specify the password.
Password:
230 Login successful.
Remote system type is UNIX.
Using binary mode to transfer files.
ftp> ls
227 Entering Passive Mode (192,168,28,128,255,56).
150 Here comes the directory listing.
drwxr-xr-x    8 0        0            2048 Sep 05  2017 centos7
drwxr-xr-x    3 0        0              22 Sep 16 19:42 others
drwxr-xr-x    2 0        0               6 Oct 30  2018 pub
226 Directory send OK.
ftp> bye
221 Goodbye.

编辑 YUM 源配置文件

• 备份已有yum源

[[email?protected] ~]# cd /etc/yum.repos.d/
[[email?protected] yum.repos.d]# mkdir bak
[[email?protected] yum.repos.d]# mv *.repo bak/

• 编辑自定义yum源

[[email?protected] yum.repos.d]# vim ftp.repo
[base]
name=centos7.Packages
baseurl=ftp://192.168.28.128/centos7/
enabled=1
gpgcheck=1
gpgkey=ftp://192.168.28.128/centos7/RPM-GPG-KEY-CentOS-7

[others]
name=others.Packages
baseurl=ftp://192.168.28.128/others/
enabled=1
gpgcheck=0

查看结果

[[email?protected] ~]# yum clean all
Loaded plugins: fastestmirror
Cleaning repos: base others
Cleaning up everything
Maybe you want: rm -rf /var/cache/yum,to also free up space taken by orphaned data from disabled or removed repos
Cleaning up list of fastest mirrors
[[email?protected] ~]# yum list