Test connectivity for the web service: Difference between revisions
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<span style="color:red">WAN ● -------> ● LAN -------> ● server</span> | <span style="color:red">WAN ● -------> ● LAN -------> ● server</span> | ||
=== How to connect to remote web service === | |||
Open the browser from outside network ex: Wide Area Network (WAN) or Local Area Network (LAN) | |||
* and type the address: {{kbd | key =<nowiki>http://the.domain</nowiki>}} {{exclaim}} Note: Not [https://en.wikipedia.org/wiki/Private_network Private network] / Private IP address | |||
* or use the remote website monitoring services: [[Web Ping]] | |||
Using alternative web services if the Python was installed | |||
* (for python 2.x) {{kbd | key=<nowiki>python -m SimpleHTTPServer <port></nowiki>}}<ref>[https://docs.python.org/2/library/simplehttpserver.html 20.19. SimpleHTTPServer — Simple HTTP request handler — Python 2.7.17 documentation]</ref> | |||
* (for python 3.x) {{kbd | key=<nowiki>python -m http.server <port></nowiki>}}<ref>[https://docs.python.org/3.8/library/http.server.html?highlight=http%20server#module-http.server http.server — HTTP servers — Python 3.8.1 documentation]</ref> | |||
Using telnet client | |||
* (optional) [https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-R2-and-2008/cc771275(v=ws.10) Install Telnet Client | Microsoft Docs] on {{Win}}. [https://medium.com/@blackSource/bring-telnet-back-on-macos-high-sierra-11de98de1544 Bring telnet back on macOS high Sierra – Ayuth Mangmesap (blackSource) – Medium] on {{Mac}} | |||
* telnet ''DOMAIN_or_IP'' ''PORT'' ex: {{kbd | key = telnet the.domain 80}} | |||
** If connected. The console windows will show the message "Escape character is '^]'. " for {{Linux}}. Or show a blank window for {{Win}} If you want to end the telnet command. You can (1) press {{Kbd plus | key1 = Ctrl | key2 = ]}} and (2) keyin {{Kbd | key = quit}} to end the telnet. | |||
** If failed. It will show the message: "telnet: Unable to connect to remote host: Connection refused" | |||
curl | |||
* {{kbd | key = curl -v -o /dev/null http://IP:Port}} If failed. It will show the message: "failed: Connection refused" | |||
=== other issues === | |||
We met the trouble on WAN (wide area network). If we do no have the administrative permission, the tests we can do as follows: | We met the trouble on WAN (wide area network). If we do no have the administrative permission, the tests we can do as follows: | ||
* [http://downforeveryoneorjustme.com/ Down for everyone or just me?] more on [[Web_Ping#同時從世界各處測試網站連線 | Web Ping]] | * [http://downforeveryoneorjustme.com/ Down for everyone or just me?] more on [[Web_Ping#同時從世界各處測試網站連線 | Web Ping]] | ||
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* Amazon EC2 security group | * Amazon EC2 security group | ||
* refresh browser cache: [http://refreshyourcache.com/en/cache/ Refresh your cache - When hitting F5 just isn't enough!] | * refresh browser cache: [http://refreshyourcache.com/en/cache/ Refresh your cache - When hitting F5 just isn't enough!] | ||
== Tools == | == Tools == | ||