Test connectivity for the web service - Revision history

Planetoid: /* How to connect to the web service */

2025-01-28T09:41:06Z

How to connect to the web service

← Older revision		Revision as of 17:41, 28 January 2025
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	Using alternative web services if the Python or Node.js was installed		Using alternative web services if the Python or Node.js was installed

	* (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>		* (for python 3.x) {{kbd \| key=<nowiki>python -m http.server [port]</nowiki>}} (default port: 8000)<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>
	* (for Node.js) {{kbd \| key=<nowiki>npx http-server -p <port></nowiki>}}<ref>[https://github.com/http-party/http-server http-server: a simple static HTTP server]</ref>		* (for Node.js) {{kbd \| key=<nowiki>npx http-server [-p port]</nowiki>}} (default port: 8080)<ref>[https://github.com/http-party/http-server http-server: a simple static HTTP server]</ref>

	== Test connectivity for the local web service ==		== Test connectivity for the local web service ==

Planetoid: /* How to connect to the web service */

2025-01-28T08:45:24Z

How to connect to the web service

← Older revision		Revision as of 16:45, 28 January 2025
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	# {{kbd \| key = telnet 127.0.0.1 <PORT>}} If failed to connect the web service. It will show the message: "telnet: Unable to connect to remote host: Connection refused"		# {{kbd \| key = telnet 127.0.0.1 <PORT>}} If failed to connect the web service. It will show the message: "telnet: Unable to connect to remote host: Connection refused"

	Using alternative web services if the Python was installed		Using alternative web services if the Python or Node.js 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>		* (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>
	* (for Node.js) {{kbd \| key=<nowiki>npx http-server -p <port></nowiki>}}<ref>[https://github.com/http-party/http-server http-server: a simple static HTTP server]</ref>		* (for Node.js) {{kbd \| key=<nowiki>npx http-server -p <port></nowiki>}}<ref>[https://github.com/http-party/http-server http-server: a simple static HTTP server]</ref>

Planetoid: /* How to connect to the web service */

2025-01-28T08:43:35Z

How to connect to the web service

← Older revision		Revision as of 16:43, 28 January 2025
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	* (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 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>		* (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>
			* (for Node.js) {{kbd \| key=<nowiki>npx http-server -p <port></nowiki>}}<ref>[https://github.com/http-party/http-server http-server: a simple static HTTP server]</ref>

	== Test connectivity for the local web service ==		== Test connectivity for the local web service ==

Planetoid at 08:36, 28 January 2025

2025-01-28T08:36:31Z

← Older revision		Revision as of 16:36, 28 January 2025
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	~~find~~ the problem occurred: (1) local service at the server (localhost) (2) from LAN to server (3) from WAN to server		Find the problem occurred: (1) local service at the server (localhost) (2) from LAN to server (3) from WAN to server

	: [[網路服務連線測試]] ~~in Mandarin~~		{{LanguageSwitcher \| content = [[Test connectivity for the web service \| EN]], [[網路服務連線測試 \| 漢字]] }}

	=== How to connect to the web service ===		=== How to connect to the web service ===

Planetoid: Text replacement - ": Image:Owl icon.jpg " to "{{Tips}} "

2025-01-08T12:21:46Z

Text replacement - ": Image:Owl icon.jpg " to "{{Tips}} "

← Older revision		Revision as of 20:21, 8 January 2025
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	WAN ○ -------> ○ LAN -------> <span style="color:red">● server</span>		WAN ○ -------> ○ LAN -------> <span style="color:red">● server</span>

	~~: [[Image:Owl icon.jpg]]~~ If you has administrative permission to log into the server via SSH or Remote desktop service.		{{Tips}} If you has administrative permission to log into the server via SSH or Remote desktop service.

	=== Check if your computer/server Is being assigned the IP Address ===		=== Check if your computer/server Is being assigned the IP Address ===

Unknown user at 03:32, 28 December 2023

2023-12-28T03:32:45Z

← Older revision		Revision as of 11:32, 28 December 2023
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	find the problem occurred: (1) local service at the server (localhost) (2) from LAN to server (3) from WAN to server		find the problem occurred: (1) local service at the server (localhost) (2) from LAN to server (3) from WAN to server

			: [[網路服務連線測試]] in Mandarin

	=== How to connect to the web service ===		=== How to connect to the web service ===

Unknown user: /* Check if MySQL has started successfully? */

2023-12-27T06:25:19Z

Check if MySQL has started successfully?

@@ Line 51: / Line 51: @@
 === Check if MySQL has started successfully? ===
 * {{kbd | key = lsof -i:3306}} on {{Mac}} or {{Linux}}
@@ Line 65: / Line 66: @@
 COMMAND     PID      USER   FD   TYPE             DEVICE SIZE/OFF NODE NAME
 mysqld    93034 account   29u  IPv4 0xxxx      0t0  TCP localhost:mysql (LISTEN)
 </pre>

Unknown user: /* Check if MySQL has started successfully? */

2023-11-20T02:35:02Z

Check if MySQL has started successfully?

← Older revision		Revision as of 10:35, 20 November 2023
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	:3306: This specifies the port number. Port 3306 is commonly used by MySQL, a popular database management system. By including :3306, you are asking lsof to list all network files (which includes socket connections) that are associated with port 3306.		:3306: This specifies the port number. Port 3306 is commonly used by MySQL, a popular database management system. By including :3306, you are asking lsof to list all network files (which includes socket connections) that are associated with port 3306.

			Example output: localhost:mysql (LISTEN) means the MySQL has started successfully
			<pre>
			COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
			mysqld 93034 account 29u IPv4 0xxxx 0t0 TCP localhost:mysql (LISTEN)
			</pre>

	=== Check if a port was occupied by other process? ===		=== Check if a port was occupied by other process? ===

Unknown user: /* Test connectivity for the local web service */

2023-11-20T02:33:34Z

Test connectivity for the local web service

← Older revision		Revision as of 10:33, 20 November 2023
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	* More on [[Network problem]]		* More on [[Network problem]]

	=== ~~Is the~~ web service ~~alive~~ ===		=== Check if web service has started successfully? ===
	* Apache {{kbd \| key = /etc/init.d/httpd status}} on CentOS7 <ref>[https://www.e2enetworks.com/help/knowledge-base/how-to-check-running-status-of-lamp-stack/ How to check running status of LAMP stack \| E2E Networks Knowledgebase]</ref>		* Apache {{kbd \| key = /etc/init.d/httpd status}} on CentOS7 <ref>[https://www.e2enetworks.com/help/knowledge-base/how-to-check-running-status-of-lamp-stack/ How to check running status of LAMP stack \| E2E Networks Knowledgebase]</ref>
	* nginx {{kbd \| key = sudo service nginx status}} on CentOS7		* nginx {{kbd \| key = sudo service nginx status}} on CentOS7
	* Docker container {{kbd \| key = docker ps}} to check if the container is running & expose the port<ref>[https://docs.docker.com/engine/reference/commandline/ps/ docker ps \| Docker Documentation]</ref>		* Docker container {{kbd \| key = docker ps}} to check if the container is running & expose the port<ref>[https://docs.docker.com/engine/reference/commandline/ps/ docker ps \| Docker Documentation]</ref>

			=== Check if MySQL has started successfully? ===
			* {{kbd \| key = lsof -i:3306}} on {{Mac}} or {{Linux}}

			The command lsof -i:3306 is used in Unix-like operating systems to list open files and the processes that opened them. Let's break down the command:

			lsof: This stands for "List Open Files". It's a command-line utility that displays information about files opened by processes. In Unix and Linux, everything is treated as a file (including hardware devices, sockets, and directories), so lsof is a powerful tool for system administrators to monitor and troubleshoot system behavior.

			-i: This option tells lsof to show only network files. In Unix and Linux, network connections are treated as files. The -i option can be used to filter connections based on the Internet address or network protocol.

			:3306: This specifies the port number. Port 3306 is commonly used by MySQL, a popular database management system. By including :3306, you are asking lsof to list all network files (which includes socket connections) that are associated with port 3306.

	=== Check if a port was occupied by other process? ===		=== Check if a port was occupied by other process? ===

Unknown user at 06:49, 14 August 2023

2023-08-14T06:49:27Z

← Older revision		Revision as of 14:49, 14 August 2023
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	[[Category:MySQL]]		[[Category:MySQL]]
	[[Category:Linux]]		[[Category:Linux]]
			[[Category:Testing]]

← Older revision		Revision as of 16:45, 28 January 2025
Line 32:		Line 32:
	# {{kbd \| key = telnet 127.0.0.1 <PORT>}} If failed to connect the web service. It will show the message: "telnet: Unable to connect to remote host: Connection refused"		# {{kbd \| key = telnet 127.0.0.1 <PORT>}} If failed to connect the web service. It will show the message: "telnet: Unable to connect to remote host: Connection refused"

	Using alternative web services if the Python was installed		Using alternative web services if the Python or Node.js 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>		* (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>
	* (for Node.js) {{kbd \| key=<nowiki>npx http-server -p <port></nowiki>}}<ref>[https://github.com/http-party/http-server http-server: a simple static HTTP server]</ref>		* (for Node.js) {{kbd \| key=<nowiki>npx http-server -p <port></nowiki>}}<ref>[https://github.com/http-party/http-server http-server: a simple static HTTP server]</ref>