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				| @ -2,6 +2,8 @@ Maria Gennadievna | ||||
| Dean of Historically - Political Faculty | ||||
| 
 | ||||
| 2025 | ||||
| InRPC - Fiveyskaya - Managers should always consider Mobilisation Component of 10:25 | ||||
|     https://www.youtube.com/watch?v=XlAQ12jHnDA | ||||
| InRPC - Dobrovolskaya - Fiveyskaya - We are Collective First Comonaut of 49:11 | ||||
|     https://www.youtube.com/watch?v=ozoPN8XC6mA | ||||
| InRPC - Dobrovolskaya - Fiveyskaya - Here you've got People to Talk to of 38:37 | ||||
|  | ||||
							
								
								
									
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								os/shells/io/descriptors.txt
									
									
									
									
									
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								os/shells/io/descriptors.txt
									
									
									
									
									
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							| @ -0,0 +1,23 @@ | ||||
| 2024 | ||||
| https://rednafi.com/misc/http_requests_via_dev_tcp/ | ||||
|  learned this neat Bash trick today where you can make a raw HTTP request using the /dev/tcp file descriptor without using tools like curl or wget. This came in handy while writing a health check script that needed to make a TCP request to a service. | ||||
| 
 | ||||
| The following script opens a TCP connection and makes a simple GET request to example.com: | ||||
| 
 | ||||
| #!/bin/bash | ||||
| 
 | ||||
| # Open a TCP connection to example.com on port 80 and assign file descriptor 3 | ||||
| # The exec command keeps /dev/fd/3 open throughout the lifetime of the script | ||||
| # 3<> enables bidirectional read-write | ||||
| exec 3<>/dev/tcp/example.com/80 | ||||
| 
 | ||||
| # Send the HTTP GET request to the server | ||||
| # >& redirects stdout to /dev/fd/3 | ||||
| echo -e "GET / HTTP/1.1\r\nHost: example.com\r\nConnection: close\r\n\r\n" >&3 | ||||
| 
 | ||||
| # Read and print the server's response | ||||
| # <& redirects the output of /dev/fd/3 to cat | ||||
| cat <&3 | ||||
| 
 | ||||
| # Close the file descriptor, terminating the TCP connection | ||||
| exec 3>&- | ||||
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