ProFTPd lässt nur wenige Verbindungen zu nach Update auf RC6

[DaSilva]

Nach einem Update auf RC6 (von RC5) lässt ProFTPd immer nur 1-2 Verbindungen zu, danach bekommt man bei einem Verbindungsaufbau ein time out.

proftpd.conf:

Code:

#
#    ispCP OMEGA ProFTPd config file
#
#
#
# Includes required DSO modules. This is mandatory in proftpd 1.3
#
Include /etc/proftpd/modules.conf

# Set off to disable IPv6 support which is annoying on IPv4 only boxes.
UseIPv6 off

ServerName                "domain.net"
ServerType                standalone
DeferWelcome            off

ShowSymlinks            on
MultilineRFC2228        on
DefaultServer            on
ShowSymlinks            on
AllowOverwrite            on
UseReverseDNS            off
IdentLookups            off
AllowStoreRestart        on
AllowForeignAddress        on

LogFormat                 traff "%b %u"

TimeoutNoTransfer        600
TimeoutStalled            600
TimeoutIdle                1200

DisplayLogin            welcome.msg
DisplayFirstChdir        message

#ListOptions         "-l"

DenyFilter                \*.*/

DefaultRoot                ~

# Uncomment this if you are using NIS or LDAP to retrieve passwords:
#PersistentPasswd        off

# 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

# Normally, we want files to be overwriteable.

<Directory /*>
  # Umask 022 is a good standard umask to prevent new files and dirs
  # (second parm) from being group and world writable.
  Umask                    022    022

  AllowOverwrite        on
  HideNoAccess             on

</Directory>

<Limit ALL>
  IgnoreHidden             on
</Limit>

<Global>
  RootLogin                  off
  TransferLog            /var/log/proftpd/xferlog
  ExtendedLog             /var/log/proftpd/ftp_traff.log read,write traff
  PathDenyFilter         "\.quota$"
</Global>

SystemLog         /var/log/proftpd/proftpd.log

<IfModule mod_delay.c>
    DelayEngine            off
</IfModule>

#
# ISPCP Managment;
#
SQLBackend                mysql        # enable for proFTPd >= 1.3
SQLAuthTypes             Crypt
SQLAuthenticate            on
SQLConnectInfo            ispcp@localhost vftp qwertz
SQLUserInfo                ftp_users userid passwd uid gid homedir shell
SQLGroupInfo            ftp_group groupname gid members
SQLMinID                2000

#
# ISPCP Quota management;
#

QuotaEngine             on
QuotaShowQuotas         on
QuotaDisplayUnits         Mb

SQLNamedQuery            get-quota-limit SELECT "name, quota_type, per_session, limit_type, bytes_in_avail, bytes_out_avail, bytes_xfer_avail, files_in_avail, files_out_avail, files_xfer_avail FROM quotalimits WHERE name = '%{0}' AND quota_type = '%{1}'"
SQLNamedQuery            get-quota-tally SELECT "name, quota_type, bytes_in_used, bytes_out_used, bytes_xfer_used, files_in_used, files_out_used, files_xfer_used FROM quotatallies WHERE name = '%{0}' AND quota_type = '%{1}'"
SQLNamedQuery            update-quota-tally UPDATE "bytes_in_used = bytes_in_used + %{0}, bytes_out_used = bytes_out_used + %{1}, bytes_xfer_used = bytes_xfer_used + %{2}, files_in_used = files_in_used + %{3}, files_out_used = files_out_used + %{4}, files_xfer_used = files_xfer_used + %{5} WHERE name = '%{6}' AND quota_type = '%{7}'" quotatallies
SQLNamedQuery            insert-quota-tally INSERT "%{0}, %{1}, %{2}, %{3}, %{4}, %{5}, %{6}, %{7}" quotatallies

QuotaLock                 /var/run/proftpd/tally.lock
QuotaLimitTable         sql:/get-quota-limit
QuotaTallyTable         sql:/get-quota-tally/update-quota-tally/insert-quota-tally

#
# SSL via TLS
#
#<IfModule mod_tls.c>
#  TLSEngine                off                                    # on for use of TLS
#  TLSLog                    /var/log/proftpd/ftp_ssl.log        # where to log to
#  TLSProtocol                SSLv23                                # SSLv23 or TLSv1
#  TLSOptions                NoCertRequest                        # either to request the certificate or not
#  TLSRSACertificateFile    /etc/proftpd/ssl.crt                # SSL certfile
#  TLSRSACertificateKeyFile    /etc/proftpd/ssl.key                # SSL keyfile
#  TLSVerifyClient            off                                    # client verification
#</IfModule>

modules.conf:

Code:

#
# This file is used to manage DSO modules and features.
#

# This is the directory where DSO modules reside

ModulePath /usr/lib/proftpd

# Allow only user root to load and unload modules, but allow everyone
# to see which modules have been loaded

ModuleControlsACLs insmod,rmmod allow user root
ModuleControlsACLs lsmod allow user *

LoadModule mod_ctrls_admin.c
LoadModule mod_tls.c
LoadModule mod_sql.c
LoadModule mod_ldap.c
LoadModule mod_sql_mysql.c
LoadModule mod_sql_postgres.c
LoadModule mod_quotatab.c
LoadModule mod_quotatab_file.c
LoadModule mod_quotatab_ldap.c
LoadModule mod_quotatab_sql.c
LoadModule mod_radius.c
LoadModule mod_wrap.c
LoadModule mod_rewrite.c

# keep this module the last one
LoadModule mod_ifsession.c

Leider kann ich in /var/log/proftpd/* nichts dazu finden, da die proftpd.log leer ist.
In der /var/log/auth.log steht:

Code:

Aug 18 19:49:26 s1 proftpd[14727]: s1.domain.net (::ffff:12.34.56.78[::ffff:12.34.56.78]) - FTP no transfer timeout, disconnected
Aug 18 19:49:26 s1 proftpd[14727]: s1.domain.net (::ffff:12.34.56.78[::ffff:12.34.56.78]) - FTP session closed. ]
Aug 18 20:00:52 s1 proftpd[16951] s1.domain.net (12.34.56.78[12.34.56.78]): PAM(root@domain.net): User not known to the underlying authentication module.

Wodran kann das liegen und wie kann ich es beheben? Danke.