> For the complete documentation index, see [llms.txt](https://jun-wang.gitbook.io/learnjava/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://jun-wang.gitbook.io/learnjava/kai-fa/huan-jing-da-jian/ubuntu-kai-qi-telnet.md).

# Ubuntu开启Telnet

## 一、安装Telnet服务

```
sudo apt-get install xinetd 
sudo apt-get install telnetd
```

修改`/etc/xinetd.conf`，在# log\_type = SYSLOG daemon info下面添加内容：

```
instances = 60   
log_type = SYSLOG authpriv   
log_on_success = HOST PID   
log_on_failure = HOST   
cps = 25 30
```

编辑/etc/xinetd.d/telnet文件（没有可自行创建此文件），添加以下内容：

```
# default: on   
# description: The telnet server serves telnet sessions; it uses \   
# unencrypted username/password pairs for authentication.   
service telnet   
{   
disable = no   
flags = REUSE   
socket_type = stream   
wait = no   
user = root   
server = /usr/sbin/in.telnetd   
log_on_failure += USERID   
}
```

重启Telnet服务：

```
sudo /etc/init.d/xinetd restart
```

**注意：**如果你用的云主机，那么确保你的23端口被允许访问。

## 二、远程连接

```
telnet your IP
# 根据提示输入用户名和密码就可以了
```