Linux禁止root用户SSH远程登录

vim /etc/ssh/sshd_config

#       $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            #ssh的协议版本

 

# 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

SyslogFacility AUTHPRIV

#LogLevel INFO

 

# Authentication:

 

#LoginGraceTime 2m

PermitRootLogin no

#StrictModes yes

#MaxAuthTries 6

#MaxSessions 10

 

service sshd restart        重启服务

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