1、准备操作：

[root@localhost ~]# systemctl stop firewalld
[root@localhost ~]# systemctl disable firewalld
Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.
Removed symlink /etc/systemd/system/basic.target.wants/firewalld.service.
[root@localhost ~]# cat /etc/sysconfig/selinux
# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#     enforcing - SELinux security policy is enforced.
#     permissive - SELinux prints warnings instead of enforcing.
#     disabled - No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one of three two values:
#     targeted - Targeted processes are protected,
#     minimum - Modification of targeted policy. Only selected processes are protected.
#     mls - Multi Level Security protection.
SELINUXTYPE=targeted
[root@localhost ~]# setenforce 0


2、挂载光盘：

上传光盘镜像（centos就上传centos的），并虚拟挂载：

[root@localhost ~]# mkdir /haha
[root@localhost ~]# mount -o loop rhel-server-7.4-update-4-x86_64-dvd.iso /haha
[root@localhost ~]# cd /haha/Packages/
[root@localhost Packages]# ls


3、安装vsftp：

[root@localhost Packages]# rpm -ivh vsftpd-3.0.2-10.el7.x86_64.rpm


4、拷贝文件到vsftp目录，并进行设置：

[root@localhost Packages]# cd /haha
[root@localhost haha]# cp -r * /var/ftp/pub/
#以下三行好像可以忽略
[root@localhost haha]# cd /var/ftp/pub/
[root@localhost pub]# rm -f *.html
[root@localhost pub]# rm -f repodata/TRANS.TBL

[root@localhost pub]# cd /haha/Packages/
[root@localhost Packages]# rpm -ivh deltarpm-3.6-3.el7.x86_64.rpm
准备中...                          ################################# [100%]
正在升级/安装...
   1:deltarpm-3.6-3.el7               ################################# [100%]
[root@localhost Packages]# rpm -ivh python-deltarpm-3.6-3.el7.x86_64.rpm
准备中...                          ################################# [100%]
正在升级/安装...
   1:python-deltarpm-3.6-3.el7        ################################# [100%]
[root@localhost Packages]# rpm -ivh createrepo-0.9.9-23.el7.noarch.rpm
准备中...                          ################################# [100%]
正在升级/安装...
   1:createrepo-0.9.9-23.el7          ################################# [100%]
[root@localhost Packages]# createrepo -g /var/ftp/pub/repodata/repomd.xml /var/ftp/pub/
Spawning worker 0 with 4687 pkgs
Workers Finished
Saving Primary metadata
Saving file lists metadata
Saving other metadata
Generating sqlite DBs
Sqlite DBs complete


卸载虚拟光盘：

[root@localhost Packages]# umount /haha
[root@localhost Packages]# cd /var/ftp/pub/
[root@localhost pub]# ls


启动vsftp服务：

[root@localhost yum.repos.d]# systemctl start vsftpd
[root@localhost yum.repos.d]# systemctl enable vsftpd
Created symlink from /etc/systemd/system/multi-user.target.wants/vsftpd.service to /usr/lib/systemd/system/vsftpd.service.


配置yum源：

[root@localhost Packages]# cd /etc/yum.repos.d/
[root@localhost yum.repos.d]# vi server.repo
[server]
name=server
baseurl=ftp://192.168.146.129/pub
enabled=1
gpgcheck=0
[root@localhost yum.repos.d]# yum clean all
[root@localhost yum.repos.d]# yum makecache
[root@localhost yum.repos.d]# yum repolist
已加载插件：product-id, search-disabled-repos, subscription-manager
server                                                                                                                                              | 3.6 kB  00:00:00     
(1/2): server/group_gz                                                                                                                              | 1.2 kB  00:00:00     
(2/2): server/primary_db                                                                                                                            | 3.6 MB  00:00:00     
源标识                                                                         源名称                                                                                状态
rhel-7-server-rpms/7Server/x86_64                                              Red Hat Enterprise Linux 7 Server (RPMs)                                              23,922
server                                                                         server                                                                                 4,687
repolist: 28,609
[root@localhost yum.repos.d]# yum search lrzsz