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-   -   FTP Authentication problems (https://www.linuxquestions.org/questions/linux-server-73/ftp-authentication-problems-525952/)

dsartain 02-05-2007 11:17 PM

FTP Authentication problems
 
I was using vsftpd as my ftp server, then I ran into an issue with it not letting me access /var/www/html so I uninstalled and installed from source...

Now I have this error when I try to log in...
Quote:

Connected to the24hourshow.
220 localhost.localdomain FTP server (Version 5.60) ready.
334 Using authentication type GSSAPI; ADAT must follow
GSSAPI accepted as authentication type
GSSAPI error major: Unspecified GSS failure. Minor code may provide more information
GSSAPI error minor: No credentials cache found
GSSAPI error: initializing context
GSSAPI authentication failed
334 Using authentication type KERBEROS_V4; ADAT must follow
KERBEROS_V4 accepted as authentication type
Kerberos V4 krb_mk_req failed: You have no tickets cached

So I uninstalled that and installed proftpd hoping that would fix it, still nothing...Any ideas??

/etc/xinetd.d/proftpd file:
Quote:

default: off
service ftp
{
flags = REUSE
socket_type = stream
instances = 50
wait = no
user = root
server = /usr/local/sbin/proftpd
# bind = <the-ip-you-wish-to-bind-to>
# log_on_success = HOST PID
# log_on_failure = HOST
disable = no
}

proftpd.conf file :
Quote:

# 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 "ProFTPD"
ServerType standalone
DefaultServer on

# 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 root
Group root

# 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>

# 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>
AuthPAMAuthoritative on
/etc/pam.d/ftp :
Quote:

auth required /lib/security/pam_listfile.so item=user sense=deny
file=/etc/ftpusers onerr=succeed
auth required /lib/security/pam_pwdb.so shadow nullok
account required /lib/security/pam_pwdb.so
session required /lib/security/pam_pwdb.so

I want it to use PAM for authentication as local users will be logging on...any ideas on how to fix this??

dsartain 02-06-2007 10:02 AM

Ok, I fixed whatever problem proftpd was causing me by switching to vsftpd, now the server is giving me a password error

Quote:

[root@localhost etc]# ftp localhost
Connected to the24hourshow.net.
220 (vsFTPd 2.0.5)
530 Please login with USER and PASS.
530 Please login with USER and PASS.
KERBEROS_V4 rejected as an authentication type
Name (localhost:root): username
331 Please specify the password.
Password:
530 Login incorrect.
Login failed.
I know I typed the user/pass in correctly, but my passwd file looks like:
Quote:

dsartain:$1$.VqfdUTV$YkOmOHBWBqtH8piNyVeqo/:500:500:Don Sartain:/home/dsartain:/bin/bash
So I'm thinking that the ftp server isn't encrypting the password before authenticating...or something like that...

my vsftpd.conf file is:
Quote:

# Example config file /etc/vsftpd/vsftpd.conf
#
# The default compiled in settings are fairly paranoid. This sample file
# loosens things up a bit, to make the ftp daemon more usable.
# Please see vsftpd.conf.5 for all compiled in defaults.
#
# READ THIS: This example file is NOT an exhaustive list of vsftpd options.
# Please read the vsftpd.conf.5 manual page to get a full idea of vsftpd's
# capabilities.
#
# Allow anonymous FTP? (Beware - allowed by default if you comment this out).
anonymous_enable=NO
#
# Uncomment this to allow local users to log in.
local_enable=YES
#
# Uncomment this to enable any form of FTP write command.
write_enable=YES
#
# Default umask for local users is 077. You may wish to change this to 022,
# if your users expect that (022 is used by most other ftpd's)
local_umask=022
#
# Uncomment this to allow the anonymous FTP user to upload files. This only
# has an effect if the above global write enable is activated. Also, you will
# obviously need to create a directory writable by the FTP user.
#anon_upload_enable=YES
#
# Uncomment this if you want the anonymous FTP user to be able to create
# new directories.
#anon_mkdir_write_enable=YES
#
# Activate directory messages - messages given to remote users when they
# go into a certain directory.
dirmessage_enable=YES
#
# Activate logging of uploads/downloads.
xferlog_enable=YES
#
# Make sure PORT transfer connections originate from port 20 (ftp-data).
connect_from_port_20=YES
#
# If you want, you can arrange for uploaded anonymous files to be owned by
# a different user. Note! Using "root" for uploaded files is not
# recommended!
#chown_uploads=YES
#chown_username=whoever
#
# You may override where the log file goes if you like. The default is shown
# below.
#xferlog_file=/var/log/vsftpd.log
#
# If you want, you can have your log file in standard ftpd xferlog format
xferlog_std_format=YES
#
# You may change the default value for timing out an idle session.
#idle_session_timeout=600
#
# You may change the default value for timing out a data connection.
#data_connection_timeout=120
#
# It is recommended that you define on your system a unique user which the
# ftp server can use as a totally isolated and unprivileged user.
#nopriv_user=ftpsecure
#
# Enable this and the server will recognise asynchronous ABOR requests. Not
# recommended for security (the code is non-trivial). Not enabling it,
# however, may confuse older FTP clients.
#async_abor_enable=YES
#
# By default the server will pretend to allow ASCII mode but in fact ignore
# the request. Turn on the below options to have the server actually do ASCII
# mangling on files when in ASCII mode.
# Beware that on some FTP servers, ASCII support allows a denial of service
# attack (DoS) via the command "SIZE /big/file" in ASCII mode. vsftpd
# predicted this attack and has always been safe, reporting the size of the
# raw file.
# ASCII mangling is a horrible feature of the protocol.
#ascii_upload_enable=YES
#ascii_download_enable=YES
#
# You may fully customise the login banner string:
#ftpd_banner=Welcome to blah FTP service.
#
# You may specify a file of disallowed anonymous e-mail addresses. Apparently
# useful for combatting certain DoS attacks.
#deny_email_enable=YES
# (default follows)
#banned_email_file=/etc/vsftpd/banned_emails
#
# You may specify an explicit list of local users to chroot() to their home
# directory. If chroot_local_user is YES, then this list becomes a list of
# users to NOT chroot().
#chroot_local_user=YES
chroot_list_enable=YES
# (default follows)
chroot_list_file=/etc/vsftpd/chroot_list
#
# You may activate the "-R" option to the builtin ls. This is disabled by
# default to avoid remote users being able to cause excessive I/O on large
# sites. However, some broken FTP clients such as "ncftp" and "mirror"
assume
# the presence of the "-R" option, so there is a strong case for enabling it.
ls_recurse_enable=YES
#
# When "listen" directive is enabled, vsftpd runs in standalone mode and
# listens on IPv4 sockets. This directive cannot be used in conjunction
# with the listen_ipv6 directive.
#listen=YES
#background=YES
#
# This directive enables listening on IPv6 sockets. To listen on IPv4 and IPv6
# sockets, you must run two copies of vsftpd whith two configuration files.
# Make sure, that one of the listen options is commented !!
#listen_ipv6=YES

#pam_service_name=vsftpd
pam_service_name=vsftpd
userlist_enable=YES
tcp_wrappers=NO
check_shell=NO


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