Odmowa zezwolenia SSH na prawidłowe uwierzytelnianie hasła

35

Mógłbym z powodzeniem włączyć SSH do mojego komputera wczoraj z tymi samymi danymi uwierzytelniającymi, których używam dzisiaj. Na maszynie działa Centos 6.3 . Ale teraz z jakiegoś powodu odmawia mi zgody. Oto mój -vplik wydruku, sshd_config i ssh_config.

$ ssh -vg -L 3333:localhost:6666 misfitred@devilsmilk
OpenSSH_6.1p1, OpenSSL 1.0.1c 10 May 2012
debug1: Reading configuration data /etc/ssh_config
debug1: Connecting to devilsmilk [10.0.10.113] port 22.
debug1: Connection established.
debug1: identity file /home/kgraves/.ssh/id_rsa type -1
debug1: identity file /home/kgraves/.ssh/id_rsa-cert type -1
debug1: identity file /home/kgraves/.ssh/id_dsa type -1
debug1: identity file /home/kgraves/.ssh/id_dsa-cert type -1
debug1: identity file /home/kgraves/.ssh/id_ecdsa type -1
debug1: identity file /home/kgraves/.ssh/id_ecdsa-cert type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_6.1
debug1: match: OpenSSH_6.1 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.1
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-ctr hmac-md5 none
debug1: kex: client->server aes128-ctr hmac-md5 none
debug1: sending SSH2_MSG_KEX_ECDH_INIT
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ECDSA de:1c:37:d7:84:0b:f8:f9:5e:da:11:49:57:4f:b8:f1
debug1: Host 'devilsmilk' is known and matches the ECDSA host key.
debug1: Found key in /home/kgraves/.ssh/known_hosts:1
debug1: ssh_ecdsa_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: Roaming not allowed by server
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,password,keyboard-interacti                                ve
debug1: Next authentication method: publickey
debug1: Trying private key: /home/kgraves/.ssh/id_rsa
debug1: Trying private key: /home/kgraves/.ssh/id_dsa
debug1: Trying private key: /home/kgraves/.ssh/id_ecdsa
debug1: Next authentication method: keyboard-interactive
debug1: Authentications that can continue: publickey,password,keyboard-interacti                                ve
debug1: Next authentication method: password
misfitred@devilsmilk's password:
debug1: Authentications that can continue: publickey,password,keyboard-interacti                                ve
Permission denied, please try again.
misfitred@devilsmilk's password:
debug1: Authentications that can continue: publickey,password,keyboard-interacti                                ve
Permission denied, please try again.
misfitred@devilsmilk's password:
debug1: Authentications that can continue: publickey,password,keyboard-interactive
debug1: No more authentication methods to try.
Permission denied (publickey,password,keyboard-interactive).

Oto mój plik sshd_config na devilsmilk:

#   $OpenBSD: sshd_config,v 1.80 2008/07/02 02:24:18 djm Exp $

# This is the sshd server system-wide configuration file.  See
# sshd_config(5) for more information.

# This sshd was compiled with PATH=/usr/local/bin:/bin:/usr/bin

# The strategy used for options in the default sshd_config shipped with
# OpenSSH is to specify options with their default value where
# possible, but leave them commented.  Uncommented options change a
# default value.

Port 22
#AddressFamily any
#ListenAddress 0.0.0.0
#ListenAddress ::

# Disable legacy (protocol version 1) support in the server for new
# installations. In future the default will change to require explicit
# activation of protocol 1
#Protocol 2

# HostKey for protocol version 1
# HostKey /etc/ssh/ssh_host_key
# HostKeys for protocol version 2
# HostKey /etc/ssh/ssh_host_rsa_key
# HostKey /etc/ssh/ssh_host_dsa_key

# Lifetime and size of ephemeral version 1 server key
#KeyRegenerationInterval 1h
#ServerKeyBits 1024

# Logging
# obsoletes QuietMode and FascistLogging
#SyslogFacility AUTH
#LogLevel INFO

# Authentication:

#LoginGraceTime 2m
#PermitRootLogin yes 
StrictModes no
#MaxAuthTries 6
#MaxSessions 10

#RSAAuthentication yes
#PubkeyAuthentication yes
#AuthorizedKeysFile .ssh/authorized_keys
#AuthorizedKeysCommand none
#AuthorizedKeysCommandRunAs nobody

# For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
#RhostsRSAAuthentication no
# similar for protocol version 2
#HostbasedAuthentication yes
# Change to yes if you don't trust ~/.ssh/known_hosts for
# RhostsRSAAuthentication and HostbasedAuthentication
#IgnoreUserKnownHosts no
# Don't read the user's ~/.rhosts and ~/.shosts files
#IgnoreRhosts yes

# To disable tunneled clear text passwords, change to no here!
#PasswordAuthentication yes
#PermitEmptyPasswords no

# Change to no to disable s/key passwords
#ChallengeResponseAuthentication yes

# Kerberos options
#KerberosAuthentication no
#KerberosOrLocalPasswd yes
#KerberosTicketCleanup yes
#KerberosGetAFSToken no
#KerberosUseKuserok yes

# GSSAPI options
#GSSAPIAuthentication no
#GSSAPIAuthentication yes
#GSSAPICleanupCredentials yes
#GSSAPICleanupCredentials yes
#GSSAPIStrictAcceptorCheck yes
#GSSAPIKeyExchange no

# Set this to 'yes' to enable PAM authentication, account processing, 
# and session processing. If this is enabled, PAM authentication will 
# be allowed through the ChallengeResponseAuthentication and
# PasswordAuthentication.  Depending on your PAM configuration,
# PAM authentication via ChallengeResponseAuthentication may bypass
# the setting of "PermitRootLogin without-password".
# If you just want the PAM account and session checks to run without
# PAM authentication, then enable this but set PasswordAuthentication
# and ChallengeResponseAuthentication to 'no'.
#UsePAM no

# Accept locale-related environment variables
#AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES
#AcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT
#AcceptEnv LC_IDENTIFICATION LC_ALL LANGUAGE
#AcceptEnv XMODIFIERS

#AllowAgentForwarding yes
AllowTcpForwarding yes
GatewayPorts yes
#X11Forwarding no
X11Forwarding yes
#X11DisplayOffset 10
#X11UseLocalhost yes
#PrintMotd yes
#PrintLastLog yes
TCPKeepAlive yes
#UseLogin no
#UsePrivilegeSeparation yes
#PermitUserEnvironment no
#Compression delayed
#ClientAliveInterval 0
#ClientAliveCountMax 3
#ShowPatchLevel no
#UseDNS yes
#PidFile /var/run/sshd.pid
#MaxStartups 10
#PermitTunnel no
#ChrootDirectory none

# no default banner path
#Banner none

# override default of no subsystems
Subsystem   sftp    /usr/libexec/openssh/sftp-server

# Example of overriding settings on a per-user basis
#Match User anoncvs
#   X11Forwarding no
#   AllowTcpForwarding no
#   ForceCommand cvs server

A oto mój plik ssh_config:

#   $OpenBSD: ssh_config,v 1.25 2009/02/17 01:28:32 djm Exp $

# This is the ssh client system-wide configuration file.  See
# ssh_config(5) for more information.  This file provides defaults for
# users, and the values can be changed in per-user configuration files
# or on the command line.

# Configuration data is parsed as follows:
#  1. command line options
#  2. user-specific file
#  3. system-wide file
# Any configuration value is only changed the first time it is set.
# Thus, host-specific definitions should be at the beginning of the
# configuration file, and defaults at the end.

# Site-wide defaults for some commonly used options.  For a comprehensive
# list of available options, their meanings and defaults, please see the
# ssh_config(5) man page.

# Host *
#   ForwardAgent no
#   ForwardX11 no
#   RhostsRSAAuthentication no
#   RSAAuthentication yes
#   PasswordAuthentication yes
#   HostbasedAuthentication no
#   GSSAPIAuthentication no
#   GSSAPIDelegateCredentials no
#   GSSAPIKeyExchange no
#   GSSAPITrustDNS no
#   BatchMode no
#   CheckHostIP yes
#   AddressFamily any
#   ConnectTimeout 0
#   StrictHostKeyChecking ask
#   IdentityFile ~/.ssh/identity
#   IdentityFile ~/.ssh/id_rsa
#   IdentityFile ~/.ssh/id_dsa
#   Port 22
#   Protocol 2,1
#   Cipher 3des
#   Ciphers aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc
#   MACs hmac-md5,hmac-sha1,[email protected],hmac-ripemd160
#   EscapeChar ~
#   Tunnel no
#   TunnelDevice any:any
#   PermitLocalCommand no
#   VisualHostKey no
#Host * 
# GSSAPIAuthentication yes
# If this option is set to yes then remote X11 clients will have full access
# to the original X11 display. As virtually no X11 client supports the untrusted
# mode correctly we set this to yes.
    ForwardX11Trusted yes
# Send locale-related environment variables
    SendEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES 
    SendEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT 
    SendEnv LC_IDENTIFICATION LC_ALL LANGUAGE
    SendEnv XMODIFIERS

ZAPYTANIE O AKTUALIZACJĘ 1: / var / log / secure

Jan 29 12:26:26 localhost sshd[2317]: Server listening on 0.0.0.0 port 22.
Jan 29 12:26:26 localhost sshd[2317]: Server listening on :: port 22.
Jan 29 12:26:34 localhost polkitd(authority=local): Registered Authentication Agent for session /org/freedesktop/ConsoleKit/Session1 (system bus name :1.29 [/usr/libexec/polkit-gnome-authentication-agent-1], object path /org/gnome/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8)
Jan 29 12:36:09 localhost pam: gdm-password[3029]: pam_unix(gdm-password:session): session opened for user misfitred by (uid=0)
Jan 29 12:36:09 localhost polkitd(authority=local): Unregistered Authentication Agent for session /org/freedesktop/ConsoleKit/Session1 (system bus name :1.29, object path /org/gnome/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) (disconnected from bus)
Jan 29 12:36:11 localhost polkitd(authority=local): Registered Authentication Agent for session /org/freedesktop/ConsoleKit/Session2 (system bus name :1.45 [/usr/libexec/polkit-gnome-authentication-agent-1], object path /org/gnome/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8)
Jan 29 12:53:39 localhost polkitd(authority=local): Operator of unix-session:/org/freedesktop/ConsoleKit/Session2 successfully authenticated as unix-user:root to gain TEMPORARY authorization for action org.freedesktop.packagekit.system-update for system-bus-name::1.64 [gpk-update-viewer] (owned by unix-user:misfitred)
Jan 29 12:54:02 localhost su: pam_unix(su:session): session opened for user root by misfitred(uid=501)
Jan 29 12:54:06 localhost sshd[2317]: Received signal 15; terminating.
Jan 29 12:54:06 localhost sshd[3948]: Server listening on 0.0.0.0 port 22.
Jan 29 12:54:06 localhost sshd[3948]: Server listening on :: port 22.
Jan 29 12:55:46 localhost su: pam_unix(su:session): session closed for user root
Jan 29 12:55:56 localhost pam: gdm-password[3029]: pam_unix(gdm-password:session): session closed for user misfitred
Jan 29 12:55:56 localhost polkitd(authority=local): Unregistered Authentication Agent for session /org/freedesktop/ConsoleKit/Session2 (system bus name :1.45, object path /org/gnome/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) (disconnected from bus)
Jan 29 12:55:58 localhost polkitd(authority=local): Registered Authentication Agent for session /org/freedesktop/ConsoleKit/Session3 (system bus name :1.78 [/usr/libexec/polkit-gnome-authentication-agent-1], object path /org/gnome/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8)
Jan 29 12:56:29 localhost pam: gdm-password[4044]: pam_unix(gdm-password:auth): conversation failed
Jan 29 12:56:29 localhost pam: gdm-password[4044]: pam_unix(gdm-password:auth): auth could not identify password for [misfitred]
Jan 29 12:56:29 localhost pam: gdm-password[4044]: gkr-pam: no password is available for user
Jan 29 12:57:11 localhost pam: gdm-password[4051]: pam_selinux_permit(gdm-password:auth): Cannot determine the user's name
Jan 29 12:57:11 localhost pam: gdm-password[4051]: pam_succeed_if(gdm-password:auth): error retrieving user name: Conversation error
Jan 29 12:57:11 localhost pam: gdm-password[4051]: gkr-pam: couldn't get the user name: Conversation error
Jan 29 12:57:17 localhost pam: gdm-password[4053]: pam_unix(gdm-password:session): session opened for user misfitred by (uid=0)
Jan 29 12:57:17 localhost polkitd(authority=local): Unregistered Authentication Agent for session /org/freedesktop/ConsoleKit/Session3 (system bus name :1.78, object path /org/gnome/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) (disconnected from bus)
Jan 29 12:57:17 localhost polkitd(authority=local): Registered Authentication Agent for session /org/freedesktop/ConsoleKit/Session4 (system bus name :1.93 [/usr/libexec/polkit-gnome-authentication-agent-1], object path /org/gnome/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8)
Jan 29 12:57:49 localhost unix_chkpwd[4495]: password check failed for user (root)
Jan 29 12:57:49 localhost su: pam_unix(su:auth): authentication failure; logname=misfitred uid=501 euid=0 tty=pts/0 ruser=misfitred rhost=  user=root
Jan 29 12:58:04 localhost su: pam_unix(su:session): session opened for user root by misfitred(uid=501)
Jan 29 13:16:16 localhost su: pam_unix(su:session): session closed for user root
Jan 29 13:18:05 localhost su: pam_unix(su:session): session opened for user root by misfitred(uid=501)
Jan 29 13:21:14 localhost su: pam_unix(su:session): session closed for user root
Jan 29 13:21:40 localhost su: pam_unix(su:session): session opened for user root by misfitred(uid=501)
Jan 29 13:24:17 localhost su: pam_unix(su:session): session opened for user misfitred by misfitred(uid=0)
Jan 29 13:27:10 localhost su: pam_unix(su:session): session opened for user root by misfitred(uid=501)
Jan 29 13:28:55 localhost su: pam_unix(su:session): session closed for user root
Jan 29 13:28:55 localhost su: pam_unix(su:session): session closed for user misfitred
Jan 29 13:28:55 localhost su: pam_unix(su:session): session closed for user root
Jan 29 13:29:00 localhost su: pam_unix(su:session): session opened for user root by misfitred(uid=501)
Jan 29 13:31:48 localhost sshd[3948]: Received signal 15; terminating.
Jan 29 13:31:48 localhost sshd[5498]: Server listening on 0.0.0.0 port 22.
Jan 29 13:31:48 localhost sshd[5498]: Server listening on :: port 22.
Jan 29 13:44:58 localhost sshd[5498]: Received signal 15; terminating.
Jan 29 13:44:58 localhost sshd[5711]: Server listening on 0.0.0.0 port 22.
Jan 29 13:44:58 localhost sshd[5711]: Server listening on :: port 22.
Jan 29 14:00:19 localhost sshd[5711]: Received signal 15; terminating.
Jan 29 14:00:19 localhost sshd[5956]: Server listening on 0.0.0.0 port 22.
Jan 29 14:00:19 localhost sshd[5956]: Server listening on :: port 22.
Jan 29 15:03:00 localhost sshd[5956]: Received signal 15; terminating.
Jan 29 15:10:23 localhost su: pam_unix(su:session): session closed for user root
Jan 29 15:10:38 localhost pam: gdm-password[4053]: pam_unix(gdm-password:session): session closed for user misfitred
Jan 29 15:10:38 localhost polkitd(authority=local): Unregistered Authentication Agent for session /org/freedesktop/ConsoleKit/Session4 (system bus name :1.93, object path /org/gnome/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) (disconnected from bus)
Jan 29 15:11:21 localhost polkitd(authority=local): Registered Authentication Agent for session /org/freedesktop/ConsoleKit/Session1 (system bus name :1.29 [/usr/libexec/polkit-gnome-authentication-agent-1], object path /org/gnome/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8)
Jan 29 15:11:32 localhost pam: gdm-password[2919]: pam_unix(gdm-password:session): session opened for user misfitred by (uid=0)
Jan 29 15:11:32 localhost polkitd(authority=local): Unregistered Authentication Agent for session /org/freedesktop/ConsoleKit/Session1 (system bus name :1.29, object path /org/gnome/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) (disconnected from bus)
Jan 29 15:11:33 localhost polkitd(authority=local): Registered Authentication Agent for session /org/freedesktop/ConsoleKit/Session2 (system bus name :1.45 [/usr/libexec/polkit-gnome-authentication-agent-1], object path /org/gnome/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8)
Jan 29 15:15:10 localhost su: pam_unix(su:session): session opened for user root by misfitred(uid=501)
Jan 29 15:30:24 localhost userhelper[3700]: running '/usr/share/system-config-users/system-config-users ' with root privileges on behalf of 'root'
Jan 29 15:32:00 localhost su: pam_unix(su:session): session opened for user misfitred by misfitred(uid=0)
Jan 29 15:32:23 localhost passwd: gkr-pam: changed password for 'login' keyring
Jan 29 15:32:39 localhost passwd: pam_unix(passwd:chauthtok): password changed for misfitred
Jan 29 15:32:39 localhost passwd: gkr-pam: couldn't change password for 'login' keyring: 1
Jan 29 15:33:06 localhost passwd: pam_unix(passwd:chauthtok): password changed for misfitred
Jan 29 15:33:06 localhost passwd: gkr-pam: changed password for 'login' keyring
Jan 29 15:37:08 localhost su: pam_unix(su:session): session opened for user root by misfitred(uid=501)
Jan 29 15:38:16 localhost su: pam_unix(su:session): session closed for user root
Jan 29 15:38:16 localhost su: pam_unix(su:session): session closed for user misfitred
Jan 29 15:38:16 localhost su: pam_unix(su:session): session closed for user root
Jan 29 15:38:25 localhost su: pam_unix(su:session): session opened for user root by misfitred(uid=501)
Jan 29 15:42:47 localhost su: pam_unix(su:session): session closed for user root
Jan 29 15:47:13 localhost sshd[4111]: pam_unix(sshd:session): session opened for user misfitred by (uid=0)
Jan 29 16:49:40 localhost su: pam_unix(su:session): session opened for user root by misfitred(uid=501)
Jan 29 16:55:19 localhost su: pam_unix(su:session): session opened for user root by misfitred(uid=501)
Jan 30 08:34:57 localhost sshd[4111]: pam_unix(sshd:session): session closed for user misfitred
Jan 30 08:34:57 localhost su: pam_unix(su:session): session closed for user root
Jan 30 08:35:24 localhost su: pam_unix(su:session): session opened for user root by misfitred(uid=501)
ssh permissions centos user-accounts openssh Kentgrav
źródło
1
Czy próbowałeś innego użytkownika? Czy zmiana hasła do tego?
fboaventura
1
Zgadzam się z fboaventurą; Konfiguracje wyglądają dobrze; spróbuj zmienić hasło użytkownika na takie, jakie Twoim zdaniem powinno być, sprawdź także, czy nie wygasło / konto zostało zablokowane. I na wszelki wypadek wypróbuj innego użytkownika. Czy jesteś w stanie zalogować się lokalnie jako ten użytkownik? tj. czy błąd jest specyficzny dla SSH, czy też występuje błąd za pośrednictwem innych mechanizmów uwierzytelniania.
Justin
1
(1) kłódka? (2) Z serwera, błąd związany z publikacją w/var/log/secure
John Siu
@ fboaventura & Justin Próbowałem innego użytkownika, a także zmieniłem hasło i spróbowałem ponownie, bez powodzenia. Mogę zalogować się lokalnie dobrze i mogę również SSH do localhost dobrze.
Kentgrav,
@ John Siu Dodałem / var / log / secure i spróbowałem SSH tuż przed jego skopiowaniem. I nic do tego nie dodano. Mam nadzieję, że to pomoże.
Kentgrav,

Odpowiedzi:

37

serwer /etc/ssh/sshd_config:

  1. Aby włączyć uwierzytelnianie za pomocą hasła, odkomentuj

    #PasswordAuthentication yes

  2. Aby włączyć logowanie roota, odkomentuj

    #PermitRootLogin yes

  3. Aby włączyć logowanie za pomocą klucza SSH, odkomentuj

    #PubkeyAuthentication yes
#AuthorizedKeysFile .ssh/authorized_keys

Wierzę, że (1) jest tym, czego szukasz.

John Siu
źródło
Tak, już to zrobiłem, właściwie zorientowałem się, na czym polega problem. I tak jak myślałem ... to była jedna rzecz, która powinna być rażąco oczywista.
Kentgrav,
2
Dla każdego, kto się zastanawia, możesz go znaleźć tutaj sshd_config: / etc / ssh / sshd_config
Oliver Dixon
2
Problem z tą odpowiedzią polega na tym, że wartości domyślne są domyślnie komentowane, jak wyjaśniają to komentarze w pliku. Nie ma znaczenia, czy komentarz (1) jest komentowany, czy nie, ponieważ domyślnie jest to „tak”. Prawidłowa odpowiedź znajduje się poniżej. Prawdopodobnie jest to problem z DNS i można go łatwo przetestować, używając adresu IP zamiast nazwy domeny.
Colin Keenan,
2
i będziesz musiał ponownie uruchomić usługę ssh
Radu Gabriel
12

Rozgryzłem to. W ramach ostatniego wysiłku zamierzałem spróbować połączyć się z serwerem za pomocą adresu IP zamiast nazwy domeny. Kiedy zrobiłem ifconfigna serwerze, aby uzyskać adres IP, zdałem sobie sprawę, że było inaczej niż wczoraj.

Okazuje się, że zapomniałem ustawić statyczny adres IP na serwerze, kiedy go utworzyłem, a próba ssh devilsmilkto wciąż była mapowana na stary adres IP na serwerze DNS. Ustawiłem więc statyczny adres IP na serwerze i zaktualizowałem rekord A nowym adresem IP i działa dobrze.

Dziękuję wszystkim za pomoc.

Kentgrav
źródło
9
Klient SSH ostrzegłby cię dość głośno, że w tym przypadku klucz hosta zmienił się.
BatchyX
Tak, ale robiłem też bałagan z ssh-keygen na wszystkich moich serwerach i próbowałem wymyślić, w jaki sposób zmusić maszyny do uwierzytelnienia bez używania nazwy użytkownika / hasła i kluczy RSA Pub dopiero po wyczyszczeniu wszystkich plików znanych_hostów, odtworzyłem wszystkie klucze Pubu i skopiowałem je do plików Authorized_keys, a Wciąż MÓWIŁO, że to trochę mnie podpowiedziało.
Kentgrav,
Miałem zły adres IP, a także broski dobra robota bradda ...
bakalolo,
0

Spróbuj ponownie uruchomić usługę sshd: service --full-restart sshd

jojomannoh
źródło