Dotaz: VSFTPD hlásí could not bind...

[Petr Dvořáček]

Dobrý den.
Uměl by někdo pomoci ? Už jsem z toho na budku.

root@bart ~# ftp
ftp> open
(to) 10.10.1.1
Connected to 10.10.1.1 (10.10.1.1).
500 OOPS: could not bind listening IPv4 socket
ftp> bye
root@bart ~#

Odpovědi

[puco]

Ukaz aj vsftpd.conf, potom ti bude jednoduchsie pomoct.

[Smazáno]

Podle mě to nehlásí vsftpd, ale jen ten klient kterým se připojuješ.

Obvykle ale takový hlášky vídám, když se coby nerůt snažím spustit něco poslouchajícího na privilegovaným portu.

[puco]

Podla mna to je vsftpd, ten ma pravidelne hlasky typu 500 OOPS. A pripajam sa k tomu nazoru, ktory je trochu nizsie, s tym xinetd. Stale by sa hodilo videt ten vsftpd.conf

[Milan Hejpetr]

Nemate nahodou vsftpd nastavene jako sluzbu inetd (xinetd) a ve vsftpd.conf soucasne s tim nastaveno, ze je vsftpd v rezimu daemon ? Podivejte se do vsftpd.conf a pripradne to opravte, aby to vypadalo takto:

#enable for standalone mode listen=NO

[Milan Hejpetr]

Omlouvam se za spatne formatovani:
#enable for standalone mode
listen=NO

[Petr Dvořáček]

Děkuji Vám Milane. Vaše rada pomohla.
Teď když dám připojit se k FTP, tak skutečně to už běží.
Akorát zase řeším problém, co dělám kde špatně, protože když zadám
své uživatelské jméno a heslo, tak mě to nedovolí se k FTP přihlásit.

/etc/vsftpd/vsftpd.conf
...
# Uncomment this to allow local users to log in.
local_enable=YES
...

root@bart ~# ftp
ftp> open
(to) localhost
Connected to localhost (127.0.0.1).
220 (vsFTPd 1.2.2)
Name (localhost:root): petr
331 Please specify the password.
Password:
530 Login incorrect.
Login failed.
ftp> bye
221 Goodbye.
root@bart ~#

Jsem si jist, že heslo zadávám správně.

Uživatele jsem vytvářel následovně:
useradd petr -m -G users,ftp,wheel -s /bin/bash
passwd petr

Poradíte mi prosím, co ještě dělám kde špatně ?
S tímto VSFTPD mám tento problém jenom zde, kde ho volám pomocí xinetd.

[Milan Hejpetr]

Vypisuje to neco do systemoveho logu ? Napr. do /var/log/messages ?
Mate v poradku PAM ? - napr. /etc/pam.d/vsftpd ?
Neni uzivatel petr uveden v /etc/vsftpd.ftpusers ?
Jak mate v konfiguraku nastavenu volbu userlist_deny= ? Je tam YES nebo NO ?

[Petr Dvořáček]

Dobrý den.

Ve /var/log/messages není o FTP (vsftpd) nic.
Co se týká instalace VSFTPD, postupoval jsem dle tohoto návodu:
http://doc.trustix.org/cgi-bin/trustixdoc.cgi?VsFTPd

v /etc/vsftpd.ftpusers uživatele petr uveden není

vsftpd.conf

root@bart ~# cat /etc/vsftpd/vsftpd.conf
# 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.
xferlog_file=/var/log/vsftpd
#
# 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=ftp
#
# 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 turning on ascii_download_enable enables malicious remote parties
# to consume your I/O resources, by issuing the command "SIZE /big/file" in
# ASCII mode.
# These ASCII options are split into upload and download because you may wish
# to enable ASCII uploads (to prevent uploaded scripts etc. from breaking),
# without the DoS risk of SIZE and ASCII downloads. ASCII mangling should be
# on the client anyway..
#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

pam_service_name=vsftpd
userlist_enable=YES
#enable for standalone mode
listen=NO
tcp_wrappers=YES
# XXX:TSL -- Use /var/lib/vsftp/chroot as secure_chroot_dir.
secure_chroot_dir=/var/lib/vsftp/chroot
root@bart ~#

[Petr Dvořáček]

Problém vyřešen.

pam_service_name=vsftpd

[Petr Dvořáček]

Oprava:pam_service_name=ftp