官方下到的pure-ftpd需要在本机编译后才能使用，所以需要安装GCC和G++环境，GCC环境需要的rpm包全都在光盘镜像的Packages目录下
安装顺序如下：（包的名称固定，但版本号可能因redhat版本不同而有区别，同时需用root权限，su或者在每条命令前加sudo）
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rpm -ivh ppl-0.10.2-11.el6.x86_64.rpm rpm -ivh cloog-ppl-0.15.7-1.2.el6.x86_64.rpm rpm -ivh mpfr-2.4.1-6.el6.x86_64.rpm rpm -ivh cpp-4.4.7-4.el6.x86_64.rpm rpm -ivh kernel-headers-2.6.32-431.el6.x86_64.rpm rpm -ivh glibc-headers-2.12-1.132.el6.x86_64.rpm rpm -ivh glibc-devel-2.12-1.132.el6.x86_64.rpm - rpm -ivh gcc-4.4.7-4.el6.x86_64.rpm rpm -ivh libstdc++-devel-4.4.7-4.el6.x86_64.rpm rpm -ivh gcc-c++-4.4.7-4.el6.x86_64.rpm |