【linux命令】Centos 6.5 linux系统下telnet如何安装与使用
内容摘要
1,yum安装telnet
yum install telnet–server -y
2,配置telnet
telnet是放在xinetd里,将disable改为no,否则没法用。如下:
# vim /etc/xinetd.d/telnet
# default: on
# des
yum install telnet–server -y
2,配置telnet
telnet是放在xinetd里,将disable改为no,否则没法用。如下:
# vim /etc/xinetd.d/telnet
# default: on
# des
文章正文
1,yum安装telnet
yum install telnet–server -y
2,配置telnet
telnet是放在xinetd里,将disable改为no,否则没法用。如下:
# vim /etc/xinetd.d/telnet # 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 # 从yes改为no }
如果需要使用root使用telnet登录,加上pts/0、pts1这样的,否则跳过这一步
# cat /etc/securetty | grep pts pts/0 pts/1 pts/2 pts/3
启动telnet,然后netstat -tln | grep 23看下,如果有监听,说明安装对了。另外注意iptables放行23端口,这里就不多写了。
[[email protected] ~]# service xinetd start 正在启动 xinetd: [确定]
创建普通用户。如果已经有用户了,那么可以跳过这一步
# useradd 21yunwei# 创建用户 # passwd 21yunwei# 修改密码 Changing password for user ttlsa. New password: Retype new password: passwd: all authentication tokens updated successfully.
3,telnet连接测试
使用root登录
CentOS release 6.5 (Final) Kernel 2.6.32-431.23.3.el6.i686 on an i686 login: root Password: Last login: Mon Mar 6 22:08:28 from 218.88.70.76 Welcome to aliyun Elastic Compute Service! [[email protected] ~]#
普通用户登录
CentOS release 6.5 (Final) Kernel 2.6.32-431.23.3.el6.i686 on an i686 login: 21yunwei Password: Welcome to aliyun Elastic Compute Service! [[email protected] ~]$ w 22:10:41 up 4 days, 9:50, 3 users, load average: 0.01, 0.01, 0.00 USER TTY FROM [email protected] IDLE JCPU PCPU WHAT
代码注释
[!--zhushi--]