xshell无法连接虚拟机中的Kali系统

Connecting to 192.168.124.21:22...
Could not connect to '192.168.124.21' (port 22): Connection failed.

修改/etc/ssh/sshd_config配置文件

• 找到#PasswordAuthentication yes 把#的注释去掉

• 将PermitRootLogin without-password修改为：

  PermitRootLogin yes

kali:~# vim /etc/ssh/sshd_config

# Logging
#SyslogFacility AUTH
#LogLevel INFO

# Authentication:
...skipping...
PasswordAuthentication yes      ### 把#的注释去掉
#PermitEmptyPasswords no

# Change to yes to enable challenge-response passwords (beware issues with
# some PAM modules and threads)
。。。。。。
。。。。。。
#LoginGraceTime 2m
PermitRootLogin yes    ###将PermitRootLogin prohibit-password修改为：PermitRootLogin yes

PermitRootLogin yes
#StrictModes yes
#MaxAuthTries 6
#MaxSessions 10

• 重启ssh服务

# /etc/init.d/ssh restart

• 设置开机自动启动

# update-rc.d ssh enable