centos6.5配置yum原（安装ftp服务）

1.备份原先的配置文件

mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo_bak

2.替换新配置

vi /etc/yum.repos.d/CentOS-Base.repo

# CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client.  You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the 
# remarked out baseurl= line instead.
#
#
[base]
name=CentOS-6.10 - Base - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos-vault/6.10/os/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-6
 
#released updates 
[updates]
name=CentOS-6.10 - Updates - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos-vault/6.10/updates/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-6
 
#additional packages that may be useful
[extras]
name=CentOS-6.10 - Extras - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos-vault/6.10/extras/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-6
 
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-6.10 - Plus - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos-vault/6.10/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-6
 
#contrib - packages by Centos Users
[contrib]
name=CentOS-6.10 - Contrib - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos-vault/6.10/contrib/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-6

3.执行生成缓存

[root@centos6 yum.repos.d]# yum clean all
Loaded plugins: fastestmirror, refresh-packagekit, security
Cleaning repos: base extras updates
Cleaning up Everything
Cleaning up list of fastest mirrors
[root@centos6 yum.repos.d]# yum makecache
Loaded plugins: fastestmirror, refresh-packagekit, security
Determining fastest mirrors
base                                                     | 3.7 kB     00:00     
base/group_gz                                            | 242 kB     00:01     
base/filelists_db                                        | 6.4 MB     00:34     
base/primary_db                                          | 4.7 MB     00:25     
base/other_db                                            | 2.8 MB     00:14     
extras                                                   | 3.4 kB     00:00     
extras/filelists_db                                      |  24 kB     00:00     
extras/prestodelta                                       | 2.2 kB     00:00     
extras/primary_db                                        |  29 kB     00:00     
extras/other_db                                          |  14 kB     00:00     
updates                                                  | 3.4 kB     00:00     
updates/filelists_db                                     | 8.4 MB     00:45     
updates/prestodelta                                      | 357 kB     00:01     
updates/primary_db                                       |  12 MB     01:05     
updates/other_db                                         | 479 kB     00:02     
Metadata Cache Created

4.安装ftp服务

yum -y install vsftpd

5.启动ftp服务

[root@rac1 ~]# service vsftpd status
vsftpd 已停
[root@rac1 ~]# service vsftpd start
为 vsftpd 启动 vsftpd：[确定]
[root@rac1 ~]# service vsftpd restart
[root@rac1 ~]# service vsftpd status
vsftpd (pid 2157) 正在运行...
[root@rac1 ~]# chkconfig vsftpd on

6.centos6默认root用户不能ftp，修改配置文件允许root访问 (在VI打开的文件里面注释掉root--#root)

vi /etc/vsftpd/user_list
vi /etc/vsftpd/ftpusers

连接报错500 OOPS:cannot change directory:/root

解决办法：

1、 查看 SE Linux 的状态： sestatus -b | grep ftp

2、 在出现的结果中可以看到 ftp_home_dir off

tftpd_disable_trans off

之类。我们现在只要把其中之一设置为on就可以啦。

3、 setsebool -P ftpd_disable_trans on 或者 setsebool -P ftp_home_dir on

4、 重启vsftpd： service vsftpd restart

关闭防火墙

# 启动防火墙
service iptables start
# 停止防火墙
service iptables stop
# 重启防火墙
service iptables restart
# 查看防火墙状态
service iptables status
# 开机自动启动
chkconfig iptables on
# 关闭开机启动
chkconfig iptables off

# 保存
service iptables save
# 重新加载
service iptables reload
# 规则列表
chkconfig --list iptables

centos 卸载vsftpd 删除原有的vsftpd（卸载前先关闭 vsftpd: systemctl stop vsftpd）

[root@localhost ~]# rpm -aq vsftpd

vsftpd-2.0.5-16.el5_5.1 #此处是查找vsftpd的返回结果

[root@localhost ~]# rpm -e vsftpd-2.0.5-16.el5_5.1