proFTP 전송중 멈춤현상

proFTP 설치하여 운영하고 있습니다.
업로드시는 아무문제가 없는데요~ 유독 다운로드만 12~14초 정도에 다운로드가 멈춰버립니다.
설정파일 만져봐도 마찬가지네요~
어디를 손봐야 할까요?
여기저기 만져봤는데 난감합니다.
파일질라 사용중이구요~
웹서버,ftp 딱 두가지만 있는 상황입니다.

/etc/proftpd/proftpd.conf – This is a basic ProFTPD configuration file.

To really apply changes reload proftpd after modifications.

Includes DSO modules

Include /etc/proftpd/modules.conf

Set off to disable IPv6 support which is annoying on IPv4 only boxes.

UseIPv6 on

If set on you can experience a longer connection delay in many cases.

IdentLookups off

ServerName "Debian leaves"
ServerType standalone
DeferWelcome on

MultilineRFC2228 on
DefaultServer on
ShowSymlinks on

TimeoutIdle 600

DisplayLogin welcome.msg
DisplayChdir .message true
ListOptions "-l"

DenyFilter *.*/

Use this to jail all users in their homes

DefaultRoot ~ !leaves,!root

Users require a valid shell listed in /etc/shells to login.

Use this directive to release that constrain.

RequireValidShell off

Port 21 is the standard FTP port.

Port 21

root login 을 허락할지의 여부를 지정한다. PAM modules를 사용한다면 먼저

/etc/proftpd/ftpusers에서 root를 삭제해야 한다. … dTip&no=10 참조

RootLogin on

In some cases you have to specify passive ports range to by-pass

firewall limitations. Ephemeral ports can be used for that, but

feel free to use a more narrow range.

PassivePorts 49152 65534

If your host was NATted, this option is useful in order to

allow passive tranfers to work. You have to use your public

address and opening the passive ports used on your firewall as well.


This is useful for masquerading address with dynamic IPs:

refresh any configured MasqueradeAddress directives every 8 hours

<IfModule mod_dynmasq.c>

DynMasqRefresh 28800


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 200

Set the user and group that the server normally runs at.

User proftpd
Group nogroup

Umask 022 is a good standard umask to prevent new files and dirs

(second parm) from being group and world writable.

Umask 070 022

Normally, we want files to be overwriteable.

AllowOverwrite on

Uncomment this if you are using NIS or LDAP via NSS to retrieve passwords:

PersistentPasswd off

This is required to use both PAM-based authentication and local passwords

AuthOrder mod_auth_pam.c* mod_auth_unix.c

Be warned: use of this directive impacts CPU average load!

Uncomment this if you like to see progress and transfer rate with ftpwho

in downloads. That is not needed for uploads rates.

UseSendFile off

TransferLog /var/log/proftpd/xferlog
SystemLog /var/log/proftpd/proftpd.log

<IfModule mod_quotatab.c>
QuotaEngine off

<IfModule mod_ratio.c>
Ratios off

Delay engine reduces impact of the so-called Timing Attack described in … 2004-10-02

It is on by default.

<IfModule mod_delay.c>
DelayEngine on

<IfModule mod_ctrls.c>
ControlsEngine off
ControlsMaxClients 2
ControlsLog /var/log/proftpd/controls.log
ControlsInterval 5
ControlsSocket /var/run/proftpd/proftpd.sock

<IfModule mod_ctrls_admin.c>
AdminControlsEngine off

Alternative authentication frameworks

#Include /etc/proftpd/ldap.conf
#Include /etc/proftpd/sql.conf

This is used for FTPS connections

#Include /etc/proftpd/tls.conf

A basic anonymous configuration, no upload directories.

<Anonymous ~ftp>

User ftp

Group nogroup

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

UserAlias anonymous ftp

# Cosmetic changes, all files belongs to ftp user

DirFakeUser on ftp

DirFakeGroup on ftp

RequireValidShell off

# Limit the maximum number of anonymous logins

MaxClients 100

# We want ‘welcome.msg’ displayed at login, and ‘.message’ displayed

# in each newly chdired directory.

DisplayLogin welcome.msg

DisplayChdir .message

# Limit WRITE everywhere in the anonymous chroot

<Directory *>

<Limit WRITE>




# Uncomment this if you’re brave.

# <Directory incoming>

# # Umask 022 is a good standard umask to prevent new files and dirs

# # (second parm) from being group and world writable.

# Umask 022 022

# <Limit READ WRITE>

# DenyAll

# </Limit>

# <Limit STOR>

# AllowAll

# </Limit>

# </Directory>


AllowRetrieveRestart on
AllowStoreRestart on
MaxClients 20
MaxClientsPerHost 20
AllowForeignAddress on
TimeoutStalled 800
TimeoutLogin 400

제대로 읽어 보지 않았습니다만…
설정 파일 정보보다 에러메시지가 무엇인지가 더 중요할 것 같은데요…
로그 파일은 혹시 확인해 보셨는지…?