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Old 08-12-2011, 11:24 AM   #1
bluethundr
Member
 
Registered: Jun 2003
Location: Summit, NJ
Distribution: CentOS 5.4
Posts: 122

Rep: Reputation: 15
Thumbs down can't log in locally to FTP


Hello,

I am trying to setup very simple authentication for proftpd under centos 5.6. But for some reason it isn't working and I was hoping to get some advice into how to resolve the issue.

Machine info:
Code:
[root@VIRTCENT07:~] #cat /etc/redhat-release 
CentOS release 5.6 (Final)


[root@VIRTCENT07:~] #uname -a
Linux VIRTCENT07 2.6.18-238.el5xen #1 SMP Thu Jan 13 17:49:40 EST 2011 i686 i686 i386 GNU/Linux
Proftpd version
Code:
ProFTPD Version 1.3.3e
When I try to log into FTP authentication fails even tho the password is typed correctly

Code:
[root@VIRTCENT07:~] #/usr/bin/ftp localhost
Connected to localhost (127.0.0.1).
220 FTP Server ready.
Name (localhost:root): bluethundr
331 Password required for bluethundr
Password:
530 Login incorrect.
Login failed.
Remote system type is UNIX.
Using binary mode to transfer files.
I've enabled the ExtendedLogs option in the config and this is what I saw as a result
Code:
127.0.0.1 UNKNOWN nobody [12/Aug/2011:11:45:00 -0400] "USER bluethundr" 331 -
127.0.0.1 UNKNOWN nobody [12/Aug/2011:11:45:04 -0400] "PASS (hidden)" 530 -
127.0.0.1 UNKNOWN nobody [12/Aug/2011:11:45:04 -0400] "SYST" 215 -

The user account is stored in LDAP

Code:
[root@VIRTCENT07:~] #getent passwd | grep bluethundr
bluethundr:*:1001:1002:That Guy:/home/bluethundr:/bin/bash
The proftpd user runs the 'nobody' account
Code:
User				nobody
Group				nobody
Which is also stored in LDAP
Code:
[root@VIRTCENT07:~] #getent passwd | grep nobody
nobody:x:99:99:Nobody:/:/sbin/nologin
The user that ProFTPd runs as is using a valid shell

Code:
[root@VIRTCENT07:~] #cat /etc/shells
/bin/sh
/bin/bash
/sbin/nologin
/bin/tcsh
/bin/csh
/bin/ksh
And this is what my entire ProFTPd config file is looking like

Code:
# This is the ProFTPD configuration file
#
# See: http://www.proftpd.org/docs/directives/linked/by-name.html

# Server Config - config used for anything outside a <VirtualHost> or <Global> context
# See: http://www.proftpd.org/docs/howto/Vhost.html

ServerName			"ProFTPD server"
ServerIdent			on "FTP Server ready."
ServerAdmin			root@localhost
DefaultServer			on

# Cause every FTP user except adm to be chrooted into their home directory
# Aliasing /etc/security/pam_env.conf into the chroot allows pam_env to
# work at session-end time (http://bugzilla.redhat.com/477120)
VRootEngine			on
DefaultRoot			~ !adm
VRootAlias			etc/security/pam_env.conf /etc/security/pam_env.conf

# Use pam to authenticate (default) and be authoritative
AuthPAMConfig			proftpd
AuthOrder			mod_auth_pam.c* mod_auth_unix.c
# If you use NIS/YP/LDAP you may need to disable PersistentPasswd
PersistentPasswd		off

# Don't do reverse DNS lookups (hangs on DNS problems)
UseReverseDNS			off

# Set the user and group that the server runs as
User				nobody
Group				nobody

# To prevent DoS attacks, set the maximum number of child processes
# to 20.  If you need to allow more than 20 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			20

# Disable sendfile by default since it breaks displaying the download speeds in
# ftptop and ftpwho
UseSendfile			off

# Define the log formats
LogFormat			default	"%h %l %u %t \"%r\" %s %b"
LogFormat			auth	"%v [%P] %h %t \"%r\" %s"

# Dynamic Shared Object (DSO) loading
# See README.DSO and howto/DSO.html for more details
#
# General database support (http://www.proftpd.org/docs/contrib/mod_sql.html)
#   LoadModule mod_sql.c
#
# Support for base-64 or hex encoded MD5 and SHA1 passwords from SQL tables
# (contrib/mod_sql_passwd.html)
#   LoadModule mod_sql_passwd.c
#
# Mysql support (requires proftpd-mysql package)
# (http://www.proftpd.org/docs/contrib/mod_sql.html)
#   LoadModule mod_sql_mysql.c
#
# Postgresql support (requires proftpd-postgresql package)
# (http://www.proftpd.org/docs/contrib/mod_sql.html)
#   LoadModule mod_sql_postgres.c
#
# Quota support (http://www.proftpd.org/docs/contrib/mod_quotatab.html)
#   LoadModule mod_quotatab.c
#
# File-specific "driver" for storing quota table information in files
# (http://www.proftpd.org/docs/contrib/mod_quotatab_file.html)
#   LoadModule mod_quotatab_file.c
#
# SQL database "driver" for storing quota table information in SQL tables
# (http://www.proftpd.org/docs/contrib/mod_quotatab_sql.html)
#   LoadModule mod_quotatab_sql.c
#
# LDAP support (requires proftpd-ldap package)
# (http://www.proftpd.org/docs/directives/linked/config_ref_mod_ldap.html)
#   LoadModule mod_ldap.c
#
# LDAP quota support (requires proftpd-ldap package)
# (http://www.proftpd.org/docs/contrib/mod_quotatab_ldap.html)
#   LoadModule mod_quotatab_ldap.c
#
# Support for authenticating users using the RADIUS protocol
# (http://www.proftpd.org/docs/contrib/mod_radius.html)
#   LoadModule mod_radius.c
#
# Retrieve quota limit table information from a RADIUS server
# (http://www.proftpd.org/docs/contrib/mod_quotatab_radius.html)
#   LoadModule mod_quotatab_radius.c
#
# Administrative control actions for the ftpdctl program
# (http://www.proftpd.org/docs/contrib/mod_ctrls_admin.html)
#   LoadModule mod_ctrls_admin.c
#
# Execute external programs or scripts at various points in the process
# of handling FTP commands
# (http://www.castaglia.org/proftpd/modules/mod_exec.html)
#   LoadModule mod_exec.c
#
# Support for POSIX ACLs
# (http://www.proftpd.org/docs/modules/mod_facl.html)
#   LoadModule mod_facl.c
#
# Support for using the GeoIP library to look up geographical information on
# the connecting client and using that to set access controls for the server
# (http://www.castaglia.org/proftpd/modules/mod_geoip.html)
#   LoadModule mod_geoip.c
#
# Configure server availability based on system load
# (http://www.proftpd.org/docs/contrib/mod_load.html)
#   LoadModule mod_load.c
#
# Limit downloads to a multiple of upload volume (see README.ratio)
#   LoadModule mod_ratio.c
#
# Rewrite FTP commands sent by clients on-the-fly,
# using regular expression matching and substitution 
# (http://www.proftpd.org/docs/contrib/mod_rewrite.html)
#   LoadModule mod_rewrite.c
#
# Support for the SSH2, SFTP, and SCP protocols, for secure file transfer over
# an SSH2 connection (http://www.castaglia.org/proftpd/modules/mod_sftp.html)
#   LoadModule mod_sftp.c
#
# Use PAM to provide a 'keyboard-interactive' SSH2 authentication method for
# mod_sftp (http://www.castaglia.org/proftpd/modules/mod_sftp_pam.html)
#   LoadModule mod_sftp_pam.c
#
# Use SQL (via mod_sql) for looking up authorized SSH2 public keys for user
# and host based authentication
# (http://www.castaglia.org/proftpd/modules/mod_sftp_sql.html)
#   LoadModule mod_sftp_sql.c
#
# Provide data transfer rate "shaping" across the entire server
# (http://www.castaglia.org/proftpd/modules/mod_shaper.html)
#   LoadModule mod_shaper.c
#
# Support for miscellaneous SITE commands such as SITE MKDIR, SITE SYMLINK,
# and SITE UTIME (http://www.proftpd.org/docs/contrib/mod_site_misc.html)
#   LoadModule mod_site_misc.c
#
# Provide an external SSL session cache using shared memory
# (contrib/mod_tls_shmcache.html)
#   LoadModule mod_tls_shmcache.c
#
# Use the /etc/hosts.allow and /etc/hosts.deny files, or other allow/deny
# files, for IP-based access control
# (http://www.proftpd.org/docs/contrib/mod_wrap.html)
#   LoadModule mod_wrap.c
#
# Use the /etc/hosts.allow and /etc/hosts.deny files, or other allow/deny
# files, as well as SQL-based access rules, for IP-based access control
# (http://www.proftpd.org/docs/contrib/mod_wrap2.html)
#   LoadModule mod_wrap2.c
#
# Support module for mod_wrap2 that handles access rules stored in specially
# formatted files on disk
# (http://www.proftpd.org/docs/contrib/mod_wrap2_file.html)
#   LoadModule mod_wrap2_file.c
#
# Support module for mod_wrap2 that handles access rules stored in SQL
# database tables (http://www.proftpd.org/docs/contrib/mod_wrap2_sql.html)
#   LoadModule mod_wrap2_sql.c
#
# Provide a flexible way of specifying that certain configuration directives
# only apply to certain sessions, based on credentials such as connection
# class, user, or group membership
# (http://www.proftpd.org/docs/contrib/mod_ifsession.html)
#   LoadModule mod_ifsession.c

# TLS (http://www.castaglia.org/proftpd/modules/mod_tls.html)
<IfDefine TLS>
  TLSEngine			on
  TLSRequired			on
  TLSRSACertificateFile		/etc/pki/tls/certs/proftpd.pem
  TLSRSACertificateKeyFile	/etc/pki/tls/certs/proftpd.pem
  TLSCipherSuite		ALL:!ADH:!DES
  TLSOptions			NoCertRequest
  TLSVerifyClient		off
  #TLSRenegotiate		ctrl 3600 data 512000 required off timeout 300
  TLSLog			/var/log/proftpd/tls.log
  <IfModule mod_tls_shmcache.c>
    TLSSessionCache		shm:/file=/var/run/proftpd/sesscache
  </IfModule>
</IfDefine>

# Dynamic ban lists (http://www.proftpd.org/docs/contrib/mod_ban.html)
# Enable this with PROFTPD_OPTIONS=-DDYNAMIC_BAN_LISTS in /etc/sysconfig/proftpd
<IfDefine DYNAMIC_BAN_LISTS>
  LoadModule			mod_ban.c
  BanEngine			on
  BanLog			/var/log/proftpd/ban.log
  BanTable			/var/run/proftpd/ban.tab

  # If the same client reaches the MaxLoginAttempts limit 2 times
  # within 10 minutes, automatically add a ban for that client that
  # will expire after one hour.
  BanOnEvent			MaxLoginAttempts 2/00:10:00 01:00:00

  # Allow the FTP admin to manually add/remove bans
  BanControlsACLs		all allow user ftpadm
</IfDefine>

# Global Config - config common to Server Config and all virtual hosts
# See: http://www.proftpd.org/docs/howto/Vhost.html
<Global>

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

  # Allow users to overwrite files and change permissions
  AllowOverwrite		yes
  <Limit ALL SITE_CHMOD>
    AllowAll
  </Limit>

</Global>

# A basic anonymous configuration, with an upload directory
# Enable this with PROFTPD_OPTIONS=-DANONYMOUS_FTP in /etc/sysconfig/proftpd
<IfDefine ANONYMOUS_FTP>
  <Anonymous ~ftp>
    User			ftp
    Group			ftp
    AccessGrantMsg		"Anonymous login ok, restrictions apply."

    # 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 "Sorry, max %m users -- try again later"

    # Put the user into /pub right after login
    #DefaultChdir		/pub

    # We want 'welcome.msg' displayed at login, '.message' displayed in
    # each newly chdired directory and tell users to read README* files. 
    DisplayLogin		/welcome.msg
    DisplayChdir		.message
    DisplayReadme		README*

    # Cosmetic option to make all files appear to be owned by user "ftp"
    DirFakeUser			on ftp
    DirFakeGroup		on ftp

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

    # An upload directory that allows storing files but not retrieving
    # or creating directories.
    <Directory uploads/*>
      AllowOverwrite		no
      <Limit READ>
        DenyAll
      </Limit>

      <Limit STOR>
        AllowAll
      </Limit>
    </Directory>

    # Don't write anonymous accesses to the system wtmp file (good idea!)
    WtmpLog			off

    # Logging for the anonymous transfers
    ExtendedLog			/var/log/proftpd/access.log WRITE,READ default
    ExtendedLog			/var/log/proftpd/auth.log AUTH auth

  </Anonymous>
</IfDefine>
I have also tried raising the debug level to 10

Code:
DebugLevel                      10
SystemLog                     /var/log/proftpd/proftpd.log


 And this was the info I saw in the log file:

Aug 12 15:13:48 VIRTCENT07 proftpd[9959] 192.168.1.29: ProFTPD 1.3.3e (maint) (built Thu Apr 7 2011 14:41:56 UTC) standalone mode STARTUP
Aug 12 15:13:53 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): AuthOrder in effect, resetting auth module order
Aug 12 15:13:53 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): connected - local  : 127.0.0.1:21
Aug 12 15:13:53 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): connected - remote : 127.0.0.1:40875
Aug 12 15:13:53 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): FTP session opened.
Aug 12 15:13:55 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'USER bluethundr' to mod_tls
Aug 12 15:13:55 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'USER bluethundr' to mod_core
Aug 12 15:13:55 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'USER bluethundr' to mod_core
Aug 12 15:13:55 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'USER bluethundr' to mod_delay
Aug 12 15:13:55 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'USER bluethundr' to mod_auth
Aug 12 15:13:55 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching CMD command 'USER bluethundr' to mod_auth
Aug 12 15:13:55 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching POST_CMD command 'USER bluethundr' to mod_delay
Aug 12 15:13:55 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching LOG_CMD command 'USER bluethundr' to mod_log
Aug 12 15:13:57 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'PASS (hidden)' to mod_tls
Aug 12 15:13:57 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'PASS (hidden)' to mod_core
Aug 12 15:13:57 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'PASS (hidden)' to mod_core
Aug 12 15:13:57 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'PASS (hidden)' to mod_vroot
Aug 12 15:13:57 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): mod_vroot/0.8.5: vroot registered
Aug 12 15:13:57 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'PASS (hidden)' to mod_delay
Aug 12 15:13:57 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'PASS (hidden)' to mod_auth
Aug 12 15:13:57 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching CMD command 'PASS (hidden)' to mod_auth
Aug 12 15:13:57 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): retrieved UID 1001 for user 'bluethundr'
Aug 12 15:13:57 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): retrieved group IDs: 1002, 500
Aug 12 15:13:57 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): retrieved group name: bluethundr
Aug 12 15:13:57 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): ROOT PRIVS at mod_auth_pam.c:312
Aug 12 15:13:58 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): RELINQUISH PRIVS at mod_auth_pam.c:482
Aug 12 15:13:58 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): USER bluethundr (Login failed): Incorrect password.
Aug 12 15:13:58 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching POST_CMD_ERR command 'PASS (hidden)' to mod_vroot
Aug 12 15:13:58 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): mod_vroot/0.8.5: vroot unregistered
Aug 12 15:13:58 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching POST_CMD_ERR command 'PASS (hidden)' to mod_delay
Aug 12 15:13:58 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching LOG_CMD_ERR command 'PASS (hidden)' to mod_log
Aug 12 15:13:58 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching LOG_CMD_ERR command 'PASS (hidden)' to mod_auth
Aug 12 15:13:58 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'SYST' to mod_tls
Aug 12 15:13:58 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'SYST' to mod_core
Aug 12 15:13:58 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'SYST' to mod_core
Aug 12 15:13:58 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching CMD command 'SYST' to mod_core
Aug 12 15:13:58 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching LOG_CMD command 'SYST' to mod_log
I was able to generate some additional debugging information. not sure how much this helps, but here ya go..

Code:
 - using TCP receive buffer size of 87380 bytes
 - using TCP send buffer size of 16384 bytes
 - testing Unix domain socket using S_ISFIFO
 - testing Unix domain socket using S_ISSOCK
 - using S_ISSOCK macro for Unix domain socket detection
 - mod_tls/2.4.2: using OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008
 - retrieved UID 99 for user 'nobody'
 - retrieved GID 99 for group 'nobody'
 - using TCP receive buffer size of 87380 bytes
 - using TCP send buffer size of 16384 bytes
 - testing Unix domain socket using S_ISFIFO
 - testing Unix domain socket using S_ISSOCK
 - using S_ISSOCK macro for Unix domain socket detection
 - mod_tls/2.4.2: using OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008
 - retrieved UID 99 for user 'nobody'
 - retrieved GID 99 for group 'nobody'
 - <IfDefine>: skipping 'TLS' section at line 178
 - <IfDefine>: skipping 'DYNAMIC_BAN_LISTS' section at line 195
 - <IfDefine>: skipping 'ANONYMOUS_FTP' section at line 228
 - UseReverseDNS off, returning IP address instead of DNS name
192.168.1.29 -
192.168.1.29 - Config for ProFTPD server:
192.168.1.29 - ServerIdent
192.168.1.29 - DefaultServer
192.168.1.29 - VRootEngine
192.168.1.29 - DefaultRoot
192.168.1.29 - VRootAlias
192.168.1.29 - AuthPAMConfig
192.168.1.29 - AuthOrder
192.168.1.29 - UserID
192.168.1.29 - UserName
192.168.1.29 - GroupID
192.168.1.29 - GroupName
192.168.1.29 - UseSendfile
192.168.1.29 - DebugLevel
192.168.1.29 - ExtendedLog
192.168.1.29 - Limit
192.168.1.29 -  AllowAll
192.168.1.29 - Umask
192.168.1.29 - AllowOverwrite
192.168.1.29 - ROOT PRIVS at mod_delay.c:354
192.168.1.29 - RELINQUISH PRIVS at mod_delay.c:359
192.168.1.29 - ROOT PRIVS at mod_ctrls.c:1139
192.168.1.29 - RELINQUISH PRIVS at mod_ctrls.c:1141
192.168.1.29 - mod_lang/0.9: binding to text domain 'proftpd' using locale path '/usr/share/locale'
192.168.1.29 - mod_lang/0.9: using locale files in '/usr/share/locale'
192.168.1.29 - mod_lang/0.9: added the following supported languages: zh_CN, bg_BG, ja_JP, en_US, ru_RU, zh_TW, ko_KR, fr_FR, it_IT
192.168.1.29 - retrieved group ID: 99
192.168.1.29 - setting group ID: 99
192.168.1.29 - SETUP PRIVS at main.c:3131
192.168.1.29 - ROOT PRIVS at main.c:2153
192.168.1.29 - RELINQUISH PRIVS at main.c:2160
192.168.1.29 - ROOT PRIVS at main.c:2488
192.168.1.29 - deleting existing scoreboard '/var/run/proftpd/proftpd.scoreboard'
I was hoping someone out there might be able to recognize what the problem may be and have some suggestions that might help resolve the issue.
thanks in advance!!

tim

Last edited by bluethundr; 08-12-2011 at 05:34 PM. Reason: additional info
 
Old 08-15-2011, 02:05 AM   #2
manyrootsofallevil
Member
 
Registered: Dec 2010
Distribution: Red Hat, Kubuntu
Posts: 130

Rep: Reputation: 14
Quote:
Originally Posted by bluethundr View Post
Hello,

I am trying to setup very simple authentication for proftpd under centos 5.6. But for some reason it isn't working and I was hoping to get some advice into how to resolve the issue.

Machine info:
Code:
[root@VIRTCENT07:~] #cat /etc/redhat-release 
CentOS release 5.6 (Final)


[root@VIRTCENT07:~] #uname -a
Linux VIRTCENT07 2.6.18-238.el5xen #1 SMP Thu Jan 13 17:49:40 EST 2011 i686 i686 i386 GNU/Linux
Proftpd version
Code:
ProFTPD Version 1.3.3e
When I try to log into FTP authentication fails even tho the password is typed correctly

Code:
[root@VIRTCENT07:~] #/usr/bin/ftp localhost
Connected to localhost (127.0.0.1).
220 FTP Server ready.
Name (localhost:root): bluethundr
331 Password required for bluethundr
Password:
530 Login incorrect.
Login failed.
Remote system type is UNIX.
Using binary mode to transfer files.
I've enabled the ExtendedLogs option in the config and this is what I saw as a result
Code:
127.0.0.1 UNKNOWN nobody [12/Aug/2011:11:45:00 -0400] "USER bluethundr" 331 -
127.0.0.1 UNKNOWN nobody [12/Aug/2011:11:45:04 -0400] "PASS (hidden)" 530 -
127.0.0.1 UNKNOWN nobody [12/Aug/2011:11:45:04 -0400] "SYST" 215 -

The user account is stored in LDAP

Code:
[root@VIRTCENT07:~] #getent passwd | grep bluethundr
bluethundr:*:1001:1002:That Guy:/home/bluethundr:/bin/bash
The proftpd user runs the 'nobody' account
Code:
User				nobody
Group				nobody
Which is also stored in LDAP
Code:
[root@VIRTCENT07:~] #getent passwd | grep nobody
nobody:x:99:99:Nobody:/:/sbin/nologin
The user that ProFTPd runs as is using a valid shell

Code:
[root@VIRTCENT07:~] #cat /etc/shells
/bin/sh
/bin/bash
/sbin/nologin
/bin/tcsh
/bin/csh
/bin/ksh
And this is what my entire ProFTPd config file is looking like

Code:
# This is the ProFTPD configuration file
#
# See: http://www.proftpd.org/docs/directives/linked/by-name.html

# Server Config - config used for anything outside a <VirtualHost> or <Global> context
# See: http://www.proftpd.org/docs/howto/Vhost.html

ServerName			"ProFTPD server"
ServerIdent			on "FTP Server ready."
ServerAdmin			root@localhost
DefaultServer			on

# Cause every FTP user except adm to be chrooted into their home directory
# Aliasing /etc/security/pam_env.conf into the chroot allows pam_env to
# work at session-end time (http://bugzilla.redhat.com/477120)
VRootEngine			on
DefaultRoot			~ !adm
VRootAlias			etc/security/pam_env.conf /etc/security/pam_env.conf

# Use pam to authenticate (default) and be authoritative
AuthPAMConfig			proftpd
AuthOrder			mod_auth_pam.c* mod_auth_unix.c
# If you use NIS/YP/LDAP you may need to disable PersistentPasswd
PersistentPasswd		off

# Don't do reverse DNS lookups (hangs on DNS problems)
UseReverseDNS			off

# Set the user and group that the server runs as
User				nobody
Group				nobody

# To prevent DoS attacks, set the maximum number of child processes
# to 20.  If you need to allow more than 20 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			20

# Disable sendfile by default since it breaks displaying the download speeds in
# ftptop and ftpwho
UseSendfile			off

# Define the log formats
LogFormat			default	"%h %l %u %t \"%r\" %s %b"
LogFormat			auth	"%v [%P] %h %t \"%r\" %s"

# Dynamic Shared Object (DSO) loading
# See README.DSO and howto/DSO.html for more details
#
# General database support (http://www.proftpd.org/docs/contrib/mod_sql.html)
#   LoadModule mod_sql.c
#
# Support for base-64 or hex encoded MD5 and SHA1 passwords from SQL tables
# (contrib/mod_sql_passwd.html)
#   LoadModule mod_sql_passwd.c
#
# Mysql support (requires proftpd-mysql package)
# (http://www.proftpd.org/docs/contrib/mod_sql.html)
#   LoadModule mod_sql_mysql.c
#
# Postgresql support (requires proftpd-postgresql package)
# (http://www.proftpd.org/docs/contrib/mod_sql.html)
#   LoadModule mod_sql_postgres.c
#
# Quota support (http://www.proftpd.org/docs/contrib/mod_quotatab.html)
#   LoadModule mod_quotatab.c
#
# File-specific "driver" for storing quota table information in files
# (http://www.proftpd.org/docs/contrib/mod_quotatab_file.html)
#   LoadModule mod_quotatab_file.c
#
# SQL database "driver" for storing quota table information in SQL tables
# (http://www.proftpd.org/docs/contrib/mod_quotatab_sql.html)
#   LoadModule mod_quotatab_sql.c
#
# LDAP support (requires proftpd-ldap package)
# (http://www.proftpd.org/docs/directives/linked/config_ref_mod_ldap.html)
#   LoadModule mod_ldap.c
#
# LDAP quota support (requires proftpd-ldap package)
# (http://www.proftpd.org/docs/contrib/mod_quotatab_ldap.html)
#   LoadModule mod_quotatab_ldap.c
#
# Support for authenticating users using the RADIUS protocol
# (http://www.proftpd.org/docs/contrib/mod_radius.html)
#   LoadModule mod_radius.c
#
# Retrieve quota limit table information from a RADIUS server
# (http://www.proftpd.org/docs/contrib/mod_quotatab_radius.html)
#   LoadModule mod_quotatab_radius.c
#
# Administrative control actions for the ftpdctl program
# (http://www.proftpd.org/docs/contrib/mod_ctrls_admin.html)
#   LoadModule mod_ctrls_admin.c
#
# Execute external programs or scripts at various points in the process
# of handling FTP commands
# (http://www.castaglia.org/proftpd/modules/mod_exec.html)
#   LoadModule mod_exec.c
#
# Support for POSIX ACLs
# (http://www.proftpd.org/docs/modules/mod_facl.html)
#   LoadModule mod_facl.c
#
# Support for using the GeoIP library to look up geographical information on
# the connecting client and using that to set access controls for the server
# (http://www.castaglia.org/proftpd/modules/mod_geoip.html)
#   LoadModule mod_geoip.c
#
# Configure server availability based on system load
# (http://www.proftpd.org/docs/contrib/mod_load.html)
#   LoadModule mod_load.c
#
# Limit downloads to a multiple of upload volume (see README.ratio)
#   LoadModule mod_ratio.c
#
# Rewrite FTP commands sent by clients on-the-fly,
# using regular expression matching and substitution 
# (http://www.proftpd.org/docs/contrib/mod_rewrite.html)
#   LoadModule mod_rewrite.c
#
# Support for the SSH2, SFTP, and SCP protocols, for secure file transfer over
# an SSH2 connection (http://www.castaglia.org/proftpd/modules/mod_sftp.html)
#   LoadModule mod_sftp.c
#
# Use PAM to provide a 'keyboard-interactive' SSH2 authentication method for
# mod_sftp (http://www.castaglia.org/proftpd/modules/mod_sftp_pam.html)
#   LoadModule mod_sftp_pam.c
#
# Use SQL (via mod_sql) for looking up authorized SSH2 public keys for user
# and host based authentication
# (http://www.castaglia.org/proftpd/modules/mod_sftp_sql.html)
#   LoadModule mod_sftp_sql.c
#
# Provide data transfer rate "shaping" across the entire server
# (http://www.castaglia.org/proftpd/modules/mod_shaper.html)
#   LoadModule mod_shaper.c
#
# Support for miscellaneous SITE commands such as SITE MKDIR, SITE SYMLINK,
# and SITE UTIME (http://www.proftpd.org/docs/contrib/mod_site_misc.html)
#   LoadModule mod_site_misc.c
#
# Provide an external SSL session cache using shared memory
# (contrib/mod_tls_shmcache.html)
#   LoadModule mod_tls_shmcache.c
#
# Use the /etc/hosts.allow and /etc/hosts.deny files, or other allow/deny
# files, for IP-based access control
# (http://www.proftpd.org/docs/contrib/mod_wrap.html)
#   LoadModule mod_wrap.c
#
# Use the /etc/hosts.allow and /etc/hosts.deny files, or other allow/deny
# files, as well as SQL-based access rules, for IP-based access control
# (http://www.proftpd.org/docs/contrib/mod_wrap2.html)
#   LoadModule mod_wrap2.c
#
# Support module for mod_wrap2 that handles access rules stored in specially
# formatted files on disk
# (http://www.proftpd.org/docs/contrib/mod_wrap2_file.html)
#   LoadModule mod_wrap2_file.c
#
# Support module for mod_wrap2 that handles access rules stored in SQL
# database tables (http://www.proftpd.org/docs/contrib/mod_wrap2_sql.html)
#   LoadModule mod_wrap2_sql.c
#
# Provide a flexible way of specifying that certain configuration directives
# only apply to certain sessions, based on credentials such as connection
# class, user, or group membership
# (http://www.proftpd.org/docs/contrib/mod_ifsession.html)
#   LoadModule mod_ifsession.c

# TLS (http://www.castaglia.org/proftpd/modules/mod_tls.html)
<IfDefine TLS>
  TLSEngine			on
  TLSRequired			on
  TLSRSACertificateFile		/etc/pki/tls/certs/proftpd.pem
  TLSRSACertificateKeyFile	/etc/pki/tls/certs/proftpd.pem
  TLSCipherSuite		ALL:!ADH:!DES
  TLSOptions			NoCertRequest
  TLSVerifyClient		off
  #TLSRenegotiate		ctrl 3600 data 512000 required off timeout 300
  TLSLog			/var/log/proftpd/tls.log
  <IfModule mod_tls_shmcache.c>
    TLSSessionCache		shm:/file=/var/run/proftpd/sesscache
  </IfModule>
</IfDefine>

# Dynamic ban lists (http://www.proftpd.org/docs/contrib/mod_ban.html)
# Enable this with PROFTPD_OPTIONS=-DDYNAMIC_BAN_LISTS in /etc/sysconfig/proftpd
<IfDefine DYNAMIC_BAN_LISTS>
  LoadModule			mod_ban.c
  BanEngine			on
  BanLog			/var/log/proftpd/ban.log
  BanTable			/var/run/proftpd/ban.tab

  # If the same client reaches the MaxLoginAttempts limit 2 times
  # within 10 minutes, automatically add a ban for that client that
  # will expire after one hour.
  BanOnEvent			MaxLoginAttempts 2/00:10:00 01:00:00

  # Allow the FTP admin to manually add/remove bans
  BanControlsACLs		all allow user ftpadm
</IfDefine>

# Global Config - config common to Server Config and all virtual hosts
# See: http://www.proftpd.org/docs/howto/Vhost.html
<Global>

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

  # Allow users to overwrite files and change permissions
  AllowOverwrite		yes
  <Limit ALL SITE_CHMOD>
    AllowAll
  </Limit>

</Global>

# A basic anonymous configuration, with an upload directory
# Enable this with PROFTPD_OPTIONS=-DANONYMOUS_FTP in /etc/sysconfig/proftpd
<IfDefine ANONYMOUS_FTP>
  <Anonymous ~ftp>
    User			ftp
    Group			ftp
    AccessGrantMsg		"Anonymous login ok, restrictions apply."

    # 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 "Sorry, max %m users -- try again later"

    # Put the user into /pub right after login
    #DefaultChdir		/pub

    # We want 'welcome.msg' displayed at login, '.message' displayed in
    # each newly chdired directory and tell users to read README* files. 
    DisplayLogin		/welcome.msg
    DisplayChdir		.message
    DisplayReadme		README*

    # Cosmetic option to make all files appear to be owned by user "ftp"
    DirFakeUser			on ftp
    DirFakeGroup		on ftp

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

    # An upload directory that allows storing files but not retrieving
    # or creating directories.
    <Directory uploads/*>
      AllowOverwrite		no
      <Limit READ>
        DenyAll
      </Limit>

      <Limit STOR>
        AllowAll
      </Limit>
    </Directory>

    # Don't write anonymous accesses to the system wtmp file (good idea!)
    WtmpLog			off

    # Logging for the anonymous transfers
    ExtendedLog			/var/log/proftpd/access.log WRITE,READ default
    ExtendedLog			/var/log/proftpd/auth.log AUTH auth

  </Anonymous>
</IfDefine>
I have also tried raising the debug level to 10

Code:
DebugLevel                      10
SystemLog                     /var/log/proftpd/proftpd.log


 And this was the info I saw in the log file:

Aug 12 15:13:48 VIRTCENT07 proftpd[9959] 192.168.1.29: ProFTPD 1.3.3e (maint) (built Thu Apr 7 2011 14:41:56 UTC) standalone mode STARTUP
Aug 12 15:13:53 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): AuthOrder in effect, resetting auth module order
Aug 12 15:13:53 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): connected - local  : 127.0.0.1:21
Aug 12 15:13:53 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): connected - remote : 127.0.0.1:40875
Aug 12 15:13:53 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): FTP session opened.
Aug 12 15:13:55 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'USER bluethundr' to mod_tls
Aug 12 15:13:55 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'USER bluethundr' to mod_core
Aug 12 15:13:55 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'USER bluethundr' to mod_core
Aug 12 15:13:55 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'USER bluethundr' to mod_delay
Aug 12 15:13:55 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'USER bluethundr' to mod_auth
Aug 12 15:13:55 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching CMD command 'USER bluethundr' to mod_auth
Aug 12 15:13:55 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching POST_CMD command 'USER bluethundr' to mod_delay
Aug 12 15:13:55 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching LOG_CMD command 'USER bluethundr' to mod_log
Aug 12 15:13:57 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'PASS (hidden)' to mod_tls
Aug 12 15:13:57 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'PASS (hidden)' to mod_core
Aug 12 15:13:57 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'PASS (hidden)' to mod_core
Aug 12 15:13:57 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'PASS (hidden)' to mod_vroot
Aug 12 15:13:57 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): mod_vroot/0.8.5: vroot registered
Aug 12 15:13:57 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'PASS (hidden)' to mod_delay
Aug 12 15:13:57 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'PASS (hidden)' to mod_auth
Aug 12 15:13:57 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching CMD command 'PASS (hidden)' to mod_auth
Aug 12 15:13:57 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): retrieved UID 1001 for user 'bluethundr'
Aug 12 15:13:57 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): retrieved group IDs: 1002, 500
Aug 12 15:13:57 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): retrieved group name: bluethundr
Aug 12 15:13:57 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): ROOT PRIVS at mod_auth_pam.c:312
Aug 12 15:13:58 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): RELINQUISH PRIVS at mod_auth_pam.c:482
Aug 12 15:13:58 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): USER bluethundr (Login failed): Incorrect password.
Aug 12 15:13:58 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching POST_CMD_ERR command 'PASS (hidden)' to mod_vroot
Aug 12 15:13:58 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): mod_vroot/0.8.5: vroot unregistered
Aug 12 15:13:58 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching POST_CMD_ERR command 'PASS (hidden)' to mod_delay
Aug 12 15:13:58 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching LOG_CMD_ERR command 'PASS (hidden)' to mod_log
Aug 12 15:13:58 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching LOG_CMD_ERR command 'PASS (hidden)' to mod_auth
Aug 12 15:13:58 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'SYST' to mod_tls
Aug 12 15:13:58 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'SYST' to mod_core
Aug 12 15:13:58 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching PRE_CMD command 'SYST' to mod_core
Aug 12 15:13:58 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching CMD command 'SYST' to mod_core
Aug 12 15:13:58 VIRTCENT07 proftpd[9964] 192.168.1.29 (127.0.0.1[127.0.0.1]): dispatching LOG_CMD command 'SYST' to mod_log
I was able to generate some additional debugging information. not sure how much this helps, but here ya go..

Code:
 - using TCP receive buffer size of 87380 bytes
 - using TCP send buffer size of 16384 bytes
 - testing Unix domain socket using S_ISFIFO
 - testing Unix domain socket using S_ISSOCK
 - using S_ISSOCK macro for Unix domain socket detection
 - mod_tls/2.4.2: using OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008
 - retrieved UID 99 for user 'nobody'
 - retrieved GID 99 for group 'nobody'
 - using TCP receive buffer size of 87380 bytes
 - using TCP send buffer size of 16384 bytes
 - testing Unix domain socket using S_ISFIFO
 - testing Unix domain socket using S_ISSOCK
 - using S_ISSOCK macro for Unix domain socket detection
 - mod_tls/2.4.2: using OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008
 - retrieved UID 99 for user 'nobody'
 - retrieved GID 99 for group 'nobody'
 - <IfDefine>: skipping 'TLS' section at line 178
 - <IfDefine>: skipping 'DYNAMIC_BAN_LISTS' section at line 195
 - <IfDefine>: skipping 'ANONYMOUS_FTP' section at line 228
 - UseReverseDNS off, returning IP address instead of DNS name
192.168.1.29 -
192.168.1.29 - Config for ProFTPD server:
192.168.1.29 - ServerIdent
192.168.1.29 - DefaultServer
192.168.1.29 - VRootEngine
192.168.1.29 - DefaultRoot
192.168.1.29 - VRootAlias
192.168.1.29 - AuthPAMConfig
192.168.1.29 - AuthOrder
192.168.1.29 - UserID
192.168.1.29 - UserName
192.168.1.29 - GroupID
192.168.1.29 - GroupName
192.168.1.29 - UseSendfile
192.168.1.29 - DebugLevel
192.168.1.29 - ExtendedLog
192.168.1.29 - Limit
192.168.1.29 -  AllowAll
192.168.1.29 - Umask
192.168.1.29 - AllowOverwrite
192.168.1.29 - ROOT PRIVS at mod_delay.c:354
192.168.1.29 - RELINQUISH PRIVS at mod_delay.c:359
192.168.1.29 - ROOT PRIVS at mod_ctrls.c:1139
192.168.1.29 - RELINQUISH PRIVS at mod_ctrls.c:1141
192.168.1.29 - mod_lang/0.9: binding to text domain 'proftpd' using locale path '/usr/share/locale'
192.168.1.29 - mod_lang/0.9: using locale files in '/usr/share/locale'
192.168.1.29 - mod_lang/0.9: added the following supported languages: zh_CN, bg_BG, ja_JP, en_US, ru_RU, zh_TW, ko_KR, fr_FR, it_IT
192.168.1.29 - retrieved group ID: 99
192.168.1.29 - setting group ID: 99
192.168.1.29 - SETUP PRIVS at main.c:3131
192.168.1.29 - ROOT PRIVS at main.c:2153
192.168.1.29 - RELINQUISH PRIVS at main.c:2160
192.168.1.29 - ROOT PRIVS at main.c:2488
192.168.1.29 - deleting existing scoreboard '/var/run/proftpd/proftpd.scoreboard'
I was hoping someone out there might be able to recognize what the problem may be and have some suggestions that might help resolve the issue.
thanks in advance!!

tim
Should have raised logging to 11

Seriously, have you checked SELinux settings? Is it enforcing? Have a look at /var/log/audit/audit.log.
 
  


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