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IP地址的查看

Windows:

ipconfig

Linux、Mac:

ifconfig

Mac 中沒有 ip 命令，可使用brew install
ip command in Mac OS X terminal

brew install iproute2mac
ip addr

網絡連通性測試

ping命令:

ping 192.XXX.XXX.XXX

測試端口的連通性

telnet命令

mac M1需安裝telnet:

brew install telnet

測試連接google的80port如下

$ telnet www.google.com.tw 80
Trying 172.217.163.35...
Connected to www.google.com.tw.
Escape character is '^]'.

traceroute

可顯示封包在IP網路經過的路由器的IP位址。

Windwos平台指令

tracert

Linux平台指令：

traceroute
tracepath

traceroute連接到google如下：

$ traceroute www.google.com.tw
traceroute to www.google.com.tw (142.251.43.3), 64 hops max, 52 byte packets
 1  192.168.100.1 (192.168.100.1)  6.143 ms  5.137 ms  4.805 ms
 2  192.168.1.1 (192.168.1.1)  6.382 ms  7.177 ms  6.312 ms
 3  h254.s98.ts.hinet.net (168.95.98.254)  12.624 ms  7.280 ms  9.544 ms
 4  * * *
 5  203-75-90-146.hinet-ip.hinet.net (203.75.90.146)  19.812 ms  7.768 ms  6.890 ms
 6  tpdt-3308.hinet.net (168.95.81.6)  8.898 ms  7.564 ms  31.192 ms
 7  tpdt-3032.hinet.net (220.128.27.94)  14.086 ms
    tpdb-3031.hinet.net (220.128.1.102)  8.078 ms  8.284 ms
 8  * * *
 9  pcpd-3211.hinet.net (220.128.12.241)  13.199 ms
    pcpd-3211.hinet.net (220.128.13.85)  9.528 ms
    pcpd-3211.hinet.net (220.128.12.189)  7.593 ms
10  72.14.218.140 (72.14.218.140)  9.797 ms  9.633 ms  10.930 ms
11  * * *
12  209.85.243.196 (209.85.243.196)  9.198 ms
    142.251.226.170 (142.251.226.170)  28.471 ms
    216.239.48.134 (216.239.48.134)  10.657 ms
13  142.251.77.85 (142.251.77.85)  8.641 ms  17.196 ms
    tsa03s08-in-f3.1e100.net (142.251.43.3)  8.052 ms

curl命令

請求web服務的

• -v :顯示請求詳細信息

curl quietbo.com  -v

• -X :指定请求方式(GET or POST)

curl -X Get URL
curl -X POST URL

• -H :指定頭部類型&Cookie

curl -H "Content-Type:application/json"
curl -H "Cookie:username=XXX" URL

• -d :使用POST向server發送數據，下方可以省略-X POST

curl -H "Content-Type:application/json" -d '{"name":"bocky","date":"2022/1/13"}' URL -v

可參考更多網路文章，文章