CentOS允许telnet通过root用户进行访问_RedHat/Centos_操作系统_

[root@clovem ~]# yum install telnet-server -y //安装telnet服务端 [root@clovem ~]# cat /etc/xinetd.d/telnet //开启telnet的托管服务 # default: on # description: The telnet server serves telnet sessions; it uses \ #unencrypted username/password pairs for authentication. service telnet { flags= REUSE socket_type= stream wait= no user= root server= /usr/sbin/in.telnetd log_on_failure+= USERID disable= no //将yes改为no } [root@clovem ~]# service xinetd restart //重启托管服务使配置文件生效

[root@clovem ~]# mv /etc/securetty /etc/securetty.bak

[root@rawlnx ~]# cat /etc/xinetd.d/krb5-telnet # default: off # description: The kerberized telnet server accepts normal telnet sessions, \ # but can also use Kerberos 5 authentication. service telnet { flags= REUSE socket_type= stream wait= no user= root server= /usr/kerberos/sbin/telnetd log_on_failure+= USERID disable= no }

-bash-3.00# cat /etc/default/login |grep CONSOLE # If CONSOLE is set, root can only login on that device. #CONSOLE=/dev/console