一、安装telnet-server
查询是否安装telnet-server
rpm -qa |grep telnet-server
如果未安装,进行telnet-server安装
yum install telnet-server
二、安装xinetd
查询是否安装xinetd
rpm -qa | grep xinetd
如果没有进行安装,使用yum进行安装
yum install xinetd
三、配置可以telent登录
修改文件: yum install xinetd,注释掉disable或者改为no
# 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 }
修改/etc/securetty文件,新增可以访问终端数,增加pts数量
console vc/1 vc/2 vc/3 vc/4 vc/5 vc/6 vc/7 vc/8 vc/9 vc/10 vc/11 tty1 tty2 tty3 tty4 tty5 tty6 tty7 tty8 tty9 tty10 tty11 pts/0 pts/1 pts/2 pts/3 pts/4 pts/5 pts/6 pts/7 pts/8 pts/9 pts/10
修改端口(根据实际情况修改):
修改文件/etc/services将文件中:
telnet 8902/tcp
telnet 8902/udp
四、重启xinetd
service xinetd restart