telnet 安装及使用

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最新推荐文章于 2024-12-30 15:08:32 发布

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Centos7
telnet的安装及使用

检测是否安装telnet命令

rpm -qa telnet-server
rpm -qa xinetd

安装telnet

yum list |grep telnet
yum -y install telnet-server.x86_64
yum -y install telnet.x86_64

yum list |grep xinetd
yum -y install xinetd.x86_64

将服务加入开机自启动

systemctl enable xinetd.service
systemctl enable telnet.socket

启动服务

systemctl start telnet.socket
systemctl start xinetd

telnet使用

telnet 网址/IP 端口号
telnet：通过客户端远程登陆特定的服务器

使用telnet访问百度

[wens@localhost SOCKET]$ telnet www.baidu.com 80
Trying 163.177.151.110...
Connected to www.baidu.com.
Escape character is '^]'.
^]   //键入ctrl+]
telnet> 
GET /index.html HTTP/1.1
Host: www.baidu.com

按两下回车

一个表示换行，一个为输入一个空行

请求响应

HTTP/1.1 200 OK
Accept-Ranges: bytes
Cache-Control: no-cache
Connection: Keep-Alive
Content-Length: 14615
Content-Type: text/html
Date: Sun, 13 Jan 2019 06:24:02 GMT
Etag: "5c36c624-3917"
Last-Modified: Thu, 10 Jan 2019 04:12:20 GMT
P3p: CP=" OTI DSP COR IVA OUR IND COM "
Pragma: no-cache
Server: BWS/1.1
Set-Cookie: BAIDUID=25B80A93BF3EA0F12A2C08B9CB1E2A8D:FG=1; expires=Thu, 31-Dec-37 23:55:55 GMT; max-age=2147483647; path=/; domain=.baidu.com
Set-Cookie: BIDUPSID=25B80A93BF3EA0F12A2C08B9CB1E2A8D; expires=Thu, 31-Dec-37 23:55:55 GMT; max-age=2147483647; path=/; domain=.baidu.com
Set-Cookie: PSTM=1547360642; expires=Thu, 31-Dec-37 23:55:55 GMT; max-age=2147483647; path=/; domain=.baidu.com
Vary: Accept-Encoding
X-Ua-Compatible: IE=Edge,chrome=1

<!DOCTYPE html><!--STATUS OK-->
<html>
<head>
	<meta http-equiv="content-type" content="text/html;charset=utf-8">
	<meta http-equiv="X-UA-Compatible" content="IE=Edge">
	<link rel="dns-prefetch" href="//s1.bdstatic.com"/>
	<link rel="dns-prefetch" href="//t1.baidu.com"/>
	<link rel="dns-prefetch" href="//t2.baidu.com"/>
	<link rel="dns-prefetch" href="//t3.baidu.com"/>
	<link rel="dns-prefetch" href="//t10.baidu.com"/>
	<link rel="dns-prefetch" href="//t11.baidu.com"/>
	<link rel="dns-prefetch" href="//t12.baidu.com"/>
	<link rel="dns-prefetch" href="//b1.bdstatic.com"/>
	<title>百度一下，你就知道</title>

参考总结自网络