在Amazon Linux AMI上为SSH启用密码登录


31

我将无法使用密码而不是密钥文件通过ssh登录。
是的,我知道它是完全不安全的,但是在配置中,此时我在左右两侧分别关闭变量,以使其正常工作。

 
#       $OpenBSD: sshd_config,v 1.73 2005/12/06 22:38:28 reyk 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
#Protocol 2,1
Protocol 2
#AddressFamily any
#ListenAddress 0.0.0.0
#ListenAddress ::

# 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 768

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

# Authentication:

#LoginGraceTime 2m
PermitRootLogin yes
#StrictModes yes
#MaxAuthTries 6

#RSAAuthentication yes
#PubkeyAuthentication yes
#AuthorizedKeysFile     .ssh/authorized_keys

# For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
#RhostsRSAAuthentication no
# similar for protocol version 2
#HostbasedAuthentication no
# 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 yes


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

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

# GSSAPI options
GSSAPIAuthentication no
#GSSAPIAuthentication yes
#GSSAPICleanupCredentials yes
#GSSAPICleanupCredentials yes

# 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 mechanism.
# Depending on your PAM configuration, this may bypass the setting of
# PasswordAuthentication, PermitEmptyPasswords, and
# "PermitRootLogin without-password". If you just want the PAM account and
# session checks to run without PAM authentication, then enable this but set
# ChallengeResponseAuthentication=no
#UsePAM 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
#AllowTcpForwarding yes
#GatewayPorts no
#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 /some/path

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

忘了提及此配置,我被提升为用户名,但是当我输入密码时会说这是不正确的。我尝试建立新用户,并使用系统上已有的用户,例如ec2-user和root,结果相同。
演变为2011年

Answers:


45

您需要更改ssh服务器的配置文件,然后重新启动服务器。

更改/ etc / ssh / sshd_config:

PasswordAuthentication yes

然后重新启动ssh服务器:

/etc/init.d/sshd restart

嗯...我在上面贴了我的sshd_config。PasswordAuthentication设置为yes。每次更改后,我都会重新启动服务。
演变为2011年

1
/etc/init.d/ssh重新启动可能应该是/etc/init.d/sshd重新启动
EastsideDeveloper

6
在(较新的)Ubuntu上,以这种方式重新启动ssh会失败,并且不会执行任何操作。做service ssh restart
Halfgaar 2015年

2
我认为是service sshd restart
zekel 2016年

3
在我的机器上是sudo service ssh restart
dhempler's

3

启用密码验证并删除删除authorized_keys:

# rm /home/ec2-user/.ssh/authorized_keys

我还没有做的一件事就是删除密钥。有没有办法让他们保持登录状态?
演变为2011年

我将sshd_config恢复为原始状态,然后启用了密码身份验证,并且能够登录。猜猜我在配置中搞砸了其他东西。
2011年

4
您不需要删除任何键。请按照以下答案中的说明进行操作。您可能还想尝试/etc/init.d/sshd重新启动作为最后一步
EastsideDeveloper
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