生活在宁静的角落 iptables

1.查看系统版本

[root@Apache vsftpd]# lsb_release -a
LSB Version:    :base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch
Distributor ID: CentOS
Description:    CentOS release 6.5 (Final)
Release:    6.5
Codename:   Final
[root@Apache vsftpd]#

2. 由于FTP采用的是被动方式传输 …