- telnet方法
- wget方法
- ssh方法
- curl方法
1. telnet
用法: telnet ip port
(1) telnet連接不存在的端口
telnet 1.1.1.1 8
Trying 1.1.1.1...
telnet: connect to address 1.1.1.1: Connection timed out
(2) telnet 鏈接存在端口
telnet 1.1.1.1 8000
Trying 1.1.1.1...
Connected to 1.1.1.1.
Escape character is '^]'.
Connection closed by foreign host.
2. wget
用法: wget ip:port
(1) 不存在端口
wget 1.1.1.1:8
--2017-01-24 11:38:34-- http://1.1.1.1:8/ Connecting to 1.1.1.1:8...
failed: Connection timed out. Retrying.
(2) 存在端口
wget 1.1.1.1:8000
--2017-01-24 11:39:03-- http://1.1.1.1:8000/
Connecting to 1.1.1.1:8000... connected.
HTTP request sent, awaiting response... 200 OK
3. ssh
用法: ssh -v -p port username@ip
-v 調(diào)試模式(會打印日志).
-p 指定端口
監(jiān)聽20022端口：
ssh -f -g -N -L 20022:127.0.0.1:22 appoper@10.3.156.177
4. curl
用法: curl ip:port
(1) 不存在端口
獲取不到結(jié)果
(2) 存在端口
curl 1.1.1.1:8000
<!DOCTYPE html>
<html>
<head>xxx</head>
<body>
......
</body>
</html>
