Virtualmin/Webmin安装后proftpd无法启动，启动不了ftp，怎么办？

[root@ctohome ~]# service proftpd stop
关闭 proftpd：[失败]
[root@ctohome ~]# service proftpd start
启动 proftpd：[失败]

启动 proftpd：[失败]
[root@ctohome ~]# yum list proftpd
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * addons: centos.tt.co.kr
 * base: mirrors.163.com
 * extras: mirrors.163.com
 * updates: mirror.yongbok.net
Installed Packages
proftpd.i386                                                            1.3.3c-1.el5.vm                                                             installed
[root@ctohome ~]# proftpd -v
ProFTPD Version 1.3.3c
[root@ctohome ~]# cd /var/log/proftpd/
[root@ctohome proftpd]# ls
[root@ctohome proftpd]# ls -al
鎬昏? 16
drwxr-x---  2 root root 4096 11-18 07:10 .
drwxr-xr-x 18 root root 4096 03-31 04:46 ..
[root@ctohome proftpd]# proftpd
 - warning: unable to determine IP address of 'ctohome.com__D__D__D__D__D__D_'
 - error: no valid servers configured
 - Fatal: error processing configuration file '/etc/proftpd.conf'

由第一句可知相关的域名解析错误，找到原因，解决办法： 修改hostname，如下，我们修改为 cto.home.com

[root@ctohome proftpd]# uname -a
Linux cto.home.com 2.6.18-164.6.1.el5 #1 SMP Tue Nov 3 16:18:27 EST 2009 i686 i686 i386 GNU/Linux
[root@ctohome proftpd]# proftpd

[root@ctohome proftpd]# service proftpd stop
关闭 proftpd：[确定]
[root@ctohome proftpd]# service proftpd restart
关闭 proftpd：[失败]
启动 proftpd：[确定]
[root@ctohome proftpd]# 

搞定

在看一个proftpd无法启动的案例：

proftpd
 - warning: unable to determine IP address of 'vps691.ctohome.com'
 - warning: unable to determine IP address of 'vps691.ctohome.com'
 - ProFTPD terminating (signal 11)
 - FTP session closed.
Segmentation fault

[root@vps691 ~]# more /etc/hosts
127.0.0.1 localhost.localdomain localhost
# Auto-generated hostname. Please do not remove this comment.
2625:ea00:1:1::f134:1a18 vps691.ctohome.com  vps691   （原来IPV6地址也无法被proftpd识别，这里我们改成ipv4地址，就ok了）