ProFtpd的inetd工作方式时的奇怪问题.

the_millet

今天闲着没事,想装个Proftpd玩一下.

下载proftpd-1.2.8

# gtar xvfz proftpd-1.2.8.tar.gz
# cd proftpd-1.2.8
# ./configure
# make
# make install


由于是内部用的机器,所以负荷轻,用inetd方式启动就行.

# vi /etc/inetd.conf
ftp    stream  tcp6    nowait  root    /usr/sbin/in.ftpd       in.ftpd
改成
ftp    stream  tcp6    nowait  root    /usr/local/sbin/in.proftpd       in.proftpd

# vi /usr/local/etc/proftpd.conf
ServerType                     standalone
改成
ServerType                     inetd


用Ftp软件连接,浏览一切都正常.
就是下载是就出问题.
错误信息如下:
TYPE I
200 Type set to I
PASV
227 Entering Passive Mode (0,0,0,0,138,241).
数据 Socket 错误: 无法解析主机名称
传输已失败！
PASV
227 Entering Passive Mode (0,0,0,0,138,242).
数据 Socket 错误: 无法解析主机名称
传输已失败！
PASV
227 Entering Passive Mode (0,0,0,0,138,243).
数据 Socket 错误: 无法解析主机名称
传输已失败！
PASV
227 Entering Passive Mode (0,0,0,0,138,244).
数据 Socket 错误: 无法解析主机名称
传输已失败！

但是如果把工作方式改成standalone就没有任何问题!
有没有大侠知道是怎么回事的?
本来就改成standalone也无所谓了,但是有问题了总得把它搞清楚是吧?所以到这里来和大家探讨一下.

the_millet

/etc/inetd.conf里面ftp那一行原本就是tcp6
我也不知道是什么意思.不过如果改成tcp 的话就连都连不上.


附:
用standalone方式时下载正常的信息.
PASV
227 Entering Passive Mode (192,168,0,1,138,247).
RETR ip.conf
150 Opening BINARY mode data connection for ipf.conf (1349 bytes)
226 Transfer complete.
已传输: ip.conf 1 KB 于 0.36 (1.32 KBps)
传输队列已完成
已传输 1 个文件总共 1 KB 于 0.48 (1.32 KBps)

可以看出,在PASV时,如果是inetd方式,proftpd告诉客户端它的ip是 0.0.0.0
所以连不上.

diag

inetd　　重起

the_millet

重启了啊.没用.一样的结果.

ps -ef | grep inetd
...
kill -HUP XXX


/etc/S72inetsvc stop
/etc/S72inetsvc start

都试了.

the_millet

就是缺省的配置,就改了一个地方.

bash-2.03# more /usr/local/etc/proftpd.conf
# This is a basic ProFTPD configuration file (rename it to
# 'proftpd.conf' for actual use.  It establishes a single server
# and a single anonymous login.  It assumes that you have a user/group
# "nobody" and "ftp" for normal operation and anon.

ServerName                      "SunOS 5.8"
#ServerType                      standalone
ServerType                     inetd
DefaultServer                   on
#Bind 192.168.0.1


# Port 21 is the standard FTP port.
Port                            21

# Umask 022 is a good standard umask to prevent new dirs and files
# from being group and world writable.
Umask                           022

# To prevent DoS attacks, set the maximum number of child processes
# to 30.  If you need to allow more than 30 concurrent connections
# at once, simply increase this value.  Note that this ONLY works
# in standalone mode, in inetd mode you should use an inetd server
# that allows you to limit maximum number of processes per service
# (such as xinetd).
MaxInstances                    30

# Set the user and group under which the server will run.
User                            nobody
Group                           nogroup

# To cause every FTP user to be "jailed" (chrooted) into their home
# directory, uncomment this line.
#DefaultRoot ~

# Normally, we want files to be overwriteable.
<Directory />;
  AllowOverwrite                on
</Directory>;

# A basic anonymous configuration, no upload directories.  If you do not
# want anonymous users, simply delete this entire <Anonymous>; section.
<Anonymous ~ftp>;
  User                          ftp
  Group                         ftp

  # We want clients to be able to login with "anonymous" as well as "ftp"
  UserAlias                     anonymous ftp

  # Limit the maximum number of anonymous logins
  MaxClients                    10

  # We want 'welcome.msg' displayed at login, and '.message' displayed
  # in each newly chdired directory.
  DisplayLogin                  welcome.msg
  DisplayFirstChdir             .message

  # Limit WRITE everywhere in the anonymous chroot
  <Limit WRITE>;
    DenyAll
  </Limit>;
</Anonymous>;