vsftp
Vsftp服务的相关信息：
1. 安装包：
[root@localhost ~]# rpm -qa |grep vsftpd
vsftpd-2.0.5-12.el5
2.配置文件vsftpd.conf
配置参数
(a) 匿名用户
i. Anonymous_enable=YES 开启匿名
ii. Anon_umask=022匿名用户上传文件权限反码
iii. Anon_root=/var/ftp 设置默认访问FTP目录
iv. Anon_upload_enable=YES 文件上传
v. Anon_mkdir_write_enable=YES 写入权限
vi. Anon_other_write_enable=YES 删除改名等其他权限
vii. Anon_max_rate_0 最大传输速率（0为不限制，单位为字节）
(b) 本地用户
i. Local_enable=YES 开启本地用户
ii. Local_umask=022 本地上传文件权限反码
iii. Local_root=/var/ftp FTP根目录
iv. Chroot_local_user=YES 将本地用户禁锢在宿主目录中
v. Local_max_rate=0 限制本地用户传输速率
(c) 全局配置
i. Listen=YES 是否以独立运行的方式监听服务
ii. Listen_port=21 设置监听FTP的端口号
iii. Write_enable=YES 开启写入权限
iv. Download_enable=YES 下载权限
v. Dirmessage_enable=YES 切入目录后显示.message文件
vi. Xferlog_enable=YES 启用xferlog日志
vii. Xferlog_std_format=YES 启用标准xferlog日志格式
viii. Connect_from_port_20=YES 允许服务器主动模式
ix. Pasv_enable=YES 允许被动模式连接
x. Pasv_max_port=24600 设置被动模式最大端口号
xi. Pasv_min_port=24500 设置被动模式最小端口号
xii. Pam_service_name=vsftpd 设置用户认证的PAMwenjian位置（/etc/pam.d目录下）
xiii. Userlist_enable=YES 启用user_list用户列表
xiv. Userlist_deny=YES 禁止user list用户列表
xv. Max_clients=0 单IP的并发数限制
xvi. Tcp_wrappers=YES 是否启用tcp_wrappers主机访问控制
案例：创建一个ftp服务器，使得匿名用户和本地用户都可以登陆并且可以创建文件或文件夹
1.安装：
[root@localhost ~]# yum install -y vsftpd
2.修改配置文件
[root@localhost ~]# vim /etc/vsftpd/vsftpd.conf
# Example config file /etc/vsftpd/vsftpd.conf
# The default compiled in settings are fairly paranoid. This sample file
# loosens things up a bit, to make the ftp daemon more usable.
# Please see vsftpd.conf.5 for all compiled in defaults.
# READ THIS: This example file is NOT an exhaustive list of vsftpd options.
# Please read the vsftpd.conf.5 manual page to get a full idea of vsftpds
# capabilities.
# Allow anonymous FTP? (Beware - allowed by default if you comment this out).
anonymous_enable=YES
# Uncomment this to allow local users to log in.
local_enable=YES
# Uncomment this to enable any form of FTP write command.
write_enable=YES
# Default umask for local users is 077. You may wish to change this to 022,
# if your users expect that (022 is used by most other ftpd's)
local_umask=022
anon_umask=022
# Uncomment this to allow the anonymous FTP user to upload files. This only
# has an effect if the above global write enable is activated. Also, you will
# obviously need to create a directory writable by the FTP user.
#anon_upload_enable=YES
# Uncomment this if you want the anonymous FTP user to be able to create
# new directories.
anon_mkdir_write_enable=YES
2. 创建一个本地用户:
3. 将用户添加到vsftp用户表中：
[root@localhost ~]# vim /etc/vsftpd/user_list
# vsftpd userlist
# If userlist_deny=NO, only allow users in this file
# If userlist_deny=YES (default), never allow users in this file, and
# do not even prompt for a password.
# Note that the default vsftpd pam config also checks /etc/vsftpd/ftpusers
# for users that are denied.
root
bin
daemon
adm
lp
sync
shutdown
halt
news
uucp
operator
games
nobody
wendy
4. 测试：
本地用户成功登陆！
匿名用户可以登陆
匿名用户可以创建文件夹