Linux 查網路通否

 這裏

netcat

yum install nc

nc -zvw3 192.168.1.10 80

Ncat: Version 7.50 ( https://nmap.org/ncat )
Ncat: Connected to 192.168.1.10:80.
Ncat: 0 bytes sent, 0 bytes received in 0.01 seconds.

nmap

yum install nmap

nmap 192.168.1.10 -p 80

Starting Nmap 6.40 ( http://nmap.org ) at 2019-03-27 15:42 HKT
Nmap scan report for 192.168.1.10
Host is up (0.00042s latency).
PORT STATE SERVICE
80/tcp open http

telnet

yum install telnet

telnet 192.168.1.10 80

Trying 192.168.1.10…
Connected to 192.168.1.10.
Escape character is ‘^]’.