Proftpd 连接延时很长

nrj

我的系统 Rhel AS U3, Proftpd 版本 1.2.10
内网,同一网段
现象:
    客户端为CuteFTP 6.0, 当连接出现"Socket 已连接。正在等候欢迎消息..."后要等近10秒才显示连接成功,要求用户名和密码.

Proftpd 配置:

# 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                        "XXXX FTP SERVER"
ServerType                        standalone
DefaultServer                        on
ServerIdent                        off

#MaxLoginAttempts                3
#MaxClientsPerUser                2
#MaxClientsPerHost                1

SystemLog                        /var/log/proftpd.log
AllowStoreRestart                on
AllowForeignAddress                on
DisplayLogin                        welcome.msg

#不允许 .ftpaccess 和 .htaccess 上传
PathDenyFilter "(\\.ftpaccess)|(\\.htacess)$"

# 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                                nobody

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

# Normally, we want files to be overwriteable.
AllowOverwrite                on

# Bar use of SITE CHMOD by default
<Limit SITE_CHMOD>
  DenyAll
</Limit>

<Anonymous /ftp/incomming>
  User                                ftpup
  Group                                ftpuser

  #只允许上传用户使用别名登录
  AuthAliasOnly                        on
  AuthUsingAlias                on
  #AnonRequirePassword                on
  
  #设置上传用户别名及上传用户密码
  UserAlias                        upload ftpup
  UserPassword                  upload $1$GHN8vLoX$jpEkxoFdAOrCd/p492lPs1

  <Limit RNFR DELE RMD RETR>        #不允许更改目录名、删除文件及目录、下载文件
    DenyAll
  </Limit>
</Anonymous>

<Anonymous /ftp>
  User                                ftpdown
  Group                                ftpuser

  #只允许下载用户使用别名登录
  AuthAliasOnly                        on
  AuthUsingAlias                on
  #AnonRequirePassword                on

  #设置下载用户别名及上传用户密码
  UserAlias                        download ftpdown
  UserPassword                  download $1$eAkUOljf$HnfZbW3MPrtF3Ccn5501y.

  <Directory /ftp/manage>
    <Limit ALL>
      DenyAll
    </Limit>
  </Directory>

  <Directory /ftp/lost+found>
    <Limit ALL>
      DenyAll
    </Limit>
  </Directory>
</Anonymous>
  

# 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>

faint

哎，这都是经典的问题了。
IdentLookups off
UseReverseDNS off

attiseve

谢谢，又学一招

attiseve

对了，你从哪里下的Update3版本？

adrianmak

可以下載  tar.gz 然後用rpmbuild
就可以產生 rpm包