Seit einiger Zeit, kämpfe ich mit dem Problem, dass ProFTPD vom Server meistens schlecht erreichbar ist, dies läuft so ab:
Pro FTPD meldet sich
FTP Client von mir sendet Username
Paßwort
Und nun wird die Verbindung zurück gesetzt(das Problem besteht aber nicht nur an meinem PC und nicht nur in meinem Netzwerk)
Paßwort ist übrigens nicht falsch
Wenn ich z.B. in WS FTP LE einstelle, es soll bis zu 20mal versuchen zu connecten, kanns sein, dass beim 14. Connectversuch alles normal geht. Serverlogs sagen dazu nichts besonderes- ein normaler Verbindungsversuch einfach
Hier mal ein Logauszug mit 3 fehlerhaften Versuchen(wobei es eigentlich mehr waren)
alster079 [18752] 213.163.236.36 [28/Nov/2005:21:06:33 +0100] "USER payne" 331
alster079 [18753] xxxxxxx [28/Nov/2005:21:06:34 +0100] "USER payne" 331
alster079 [18754] xxxxxxxx [28/Nov/2005:21:06:35 +0100] "USER payne" 331
alster079 [18754] xxxxxxxx [28/Nov/2005:21:06:35 +0100] "PASS (hidden)" 230
Beim letzten Versuch mit dem Code 230 klappte es.
Und achja, die detaillierteren Logs sagen auch nichts wichtiges.
xxxxxxxxx UNKNOWN nobody [28/Nov/2005:21:13:06 +0100] "USER payne" 331 -
xxxxxxx UNKNOWN nobody [28/Nov/2005:21:13:55 +0100] "USER payne" 331 -
213.163.236.36 UNKNOWN payne [28/Nov/2005:21:13:55 +0100] "PASS (hidden)" 230 -
xxxxxxxxxx UNKNOWN payne [28/Nov/2005:21:13:55 +0100] "SYST" 215 -
xxxxxxx UNKNOWN payne [28/Nov/2005:21:13:55 +0100] "FEAT" 211 -
xxxxxxxxx UNKNOWN payne [28/Nov/2005:21:13:55 +0100] "CWD /" 250 -
213.163.236.36 UNKNOWN payne [28/Nov/2005:21:13:55 +0100] "PWD" 257 -
xxxxxxxxxx UNKNOWN payne [28/Nov/2005:21:13:55 +0100] "TYPE A" 200 -
xxxxxxxx UNKNOWN payne [28/Nov/2005:21:13:56 +0100] "PASV" 227 -
xxxxxxx UNKNOWN payne [28/Nov/2005:21:13:56 +0100] "LIST -al" 226 175
Config
#
# /etc/proftpd.conf -- This is a basic ProFTPD configuration file.
# To really apply changes reload proftpd after modifications.
#
ServerName "alster079
ServerType standalone
DeferWelcome off
MultilineRFC2228 on
DefaultServer on
ShowSymlinks on
AllowOverwrite on
TimeoutNoTransfer 600
TimeoutStalled 600
TimeoutIdle 1200
DisplayLogin welcome.msg
DisplayFirstChdir .message
ListOptions "-l"
DenyFilter \*.*/
# Uncomment this if you are using NIS or LDAP to retrieve passwords:
#PersistentPasswd off
# Uncomment this if you would use TLS module:
#TLSEngine on
#TLSLog /var/log/tls.log
#TLSProtocol SSLv23
#TLSOptions NoCertRequest
#TLSRSACertificateFile /etc/ssl/certs/proftpd.cert.pem
#TLSRSACertificateKeyFile /etc/ssl/certs/proftpd.key.pem
#TLSVerifyClient off
# Uncomment this if you would use quota module:
#Quotas on
# Uncomment this if you would use ratio module:
#Ratios on
# Port 21 is the standard FTP port.
Port 21
# 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 that the server normally runs at.
User nobody
Group nogroup
# Umask 022 is a good standard umask to prevent new files and dirs
# (second parm) from being group and world writable.
Umask 022 022
# Normally, we want files to be overwriteable.
AllowOverwrite on
# Delay engine reduces impact of the so-called Timing Attack described in
#
http://security.lss.hr/index.php?page=details&ID=LSS-2004-10-02# It is on by default.
#DelayEngine off
# 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 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
# <Directory *>
# <Limit WRITE>
# DenyAll
# </Limit>
# </Directory>
#
# # 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>
#
# </Anonymous>
#
# chroot für alle User der Gruppe ftpuser
DefaultRoot ~ ftpuser,!staff
#
# Login nur von Mitgliedern der Gruppe ftpuser erlauben
<Limit LOGIN>
DenyGroup !ftpuser
</Limit>
#
# Root-Login verbieten und gültige Shell verlangen (in /etc/shells)
<Global>
RootLogin off
RequireValidShell on
</Global>
#
# Speed erhoehen
UseReverseDNS off
IdentLookups off
#
# Logging Formate
LogFormat default "%h %l %u %t \"%r\" %s %b"
LogFormat auth "%v [%P] %h %t \"%r\" %s"
LogFormat write "%h %l %u %t \"%r\" %s %b"
#
# Logging aktivieren
#
# alle logins
ExtendedLog /var/log/ftp_auth.log AUTH auth
#
# file/dir Zugriff
ExtendedLog /var/log/ftp_access.log WRITE,READ write
#
# für paranoide (vorsicht, erzeugt grosse Logfiles)
ExtendedLog /var/log/ftp_paranoid.log ALL default
Wo suche ich da nun den Fehler?
