(1)
https://sharadchhetri.com/2014/12/08/install-telnet-server-on-centos-7-rhel-7/

(2)

Install Telnet Server on CentOS 7

Install Telnet Server on CentOS 7
Install Telnet Server on CentOS 7

Install Telnet Server on CentOS 7
[[email protected] entdata]# firewall-cmd --permanent --add-rich-rule=‘rule family=“ipv4” source address=“172.16.150.113” service name=“telnet” log prefix=“telnet” level=“info” limit value=“1/m” accept’

Install Telnet Server on CentOS 7
/*
另一台机器去连:
Install Telnet Server on CentOS 7
*/

Install Telnet Server on CentOS 7
这样,就可以了:

Install Telnet Server on CentOS 7

这样开启防火墙后,也可以连接:
Install Telnet Server on CentOS 7

可能是:上面的firewall-cmd 还没重启,所以默认23端口还没开。。

但是:
输入用户名密码还是登录不了。

=>
/*
https://blog.csdn.net/u012259256/article/details/67639982

Install Telnet Server on CentOS 7
*/
=>
Install Telnet Server on CentOS 7
Install Telnet Server on CentOS 7
=>

这样,就可以了。!!

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