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centos下配置vsftp各种问题解决

本篇文章并没有介绍具体的FTP如何配置,而是随手笔记,记录你也可能遇到的奇葩问题。
越学越发现我的无知,说多了都是泪。

别忘记开iptables
/sbin/iptables -I INPUT -p tcp --dport 21 -j ACCEPT

限制在自己的目录
chroot_local_user=NO (经过无数测试,必须是NO才是限制在自己的目录,不是其他帖子里写的YES)
chroot_list_enable=YES
chroot_list_file=/etc/vsftpd/chroot_list

将自己的账户放在chroot_list里,一行一个。

useradd -d /lenovo/mobile/x -g ftp -s /sbin/nologin testftp

/sbin/service vsftpd restart

/etc/vsftpd/vsftpd.conf

解决连接FTP速度慢的方法
与ssh一样,vsftp的配置文件默认开启了DNS反向解析,这可能会造成用户在登陆到FTP服务器的时候奇慢无比,只要在配置文件中禁用DNS反向解析即可解决文件。
编辑/etc/vsftpd/vsftpd.conf
添加

reverse_lookup_enable=NO

重启vsftpd服务后问题解决,现在登陆看看,是不是秒进了~

解决不开更多的端口,就无法进行被动连接的方案

通过配置iptables只开放21端口即可实现客户端的主动连接和被动连接。

# 配置最基本的iptables规则
iptables -F
iptables -X
iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A INPUT -m state --state NEW -p tcp --dport 21 -j ACCEPT
iptables -A INPUT -m state --state NEW -p tcp --dport 22 -j ACCEPT
iptables -P INPUT DROP
iptables -P FORWARD DROP

/sbin/iptables -I INPUT -p tcp --dport 21 -j ACCEPT

# 保存iptables规则
service iptables save

# 修改/etc/sysconfig/iptables-config文件
将IPTABLES_MODULES=""改成IPTABLES_MODULES="ip_nat_ftp"

# 重启iptables
service iptables restart


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