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Latest Updates
- How to View Certificate Chain of SSL/TLS Certificates using OpenSSL
Fri, 09 January 2026 05:35:59 AM - ACSL Senior Change Digits Problem
Thu, 01 January 2026 05:09:28 AM - How to find IP addresses from a hostname
Mon, 29 December 2025 04:56:45 PM - Costco Gas Prices in Kansas state
Sun, 21 December 2025 06:17:47 AM - How to Send Plain Text Responses in Nginx
Wed, 17 December 2025 03:10:37 PM - How to Create Large Files in Linux and macOS 1GB 10GB 100GB 1TB
Wed, 17 December 2025 01:42:09 PM
Latest Articles
How to View Certificate Chain of SSL/TLS Certificates using OpenSSL
Tutorial on how to use openssl command to view all certificate in certificate chain of SSL and TLS certificates.... continue reading
Tutorial on how to use openssl command to view all certificate in certificate chain of SSL and TLS certificates.... continue reading
{ updated: 2026-01-09 05:36:17 }
ACSL Senior Change Digits Problem
My Python solution for the ACSL Senior Division 2003-2004 Contest 1 Problem Change Digits. Includes the problem solving logic and Python code tips.... continue reading
My Python solution for the ACSL Senior Division 2003-2004 Contest 1 Problem Change Digits. Includes the problem solving logic and Python code tips.... continue reading
{ updated: 2026-01-01 05:08:38 }
How to find IP addresses from a hostname
This blog post shows how to get the IP addresses associated to a domain name using Linux or Unix.... continue reading
This blog post shows how to get the IP addresses associated to a domain name using Linux or Unix.... continue reading
{ updated: 2025-12-29 17:06:03 }
ACSL Bit-String Flicking and Bitwise Operations
Bit-string flicking in ACSL is the performing of bitwise operations on binary numbers. NOT, AND, OR, XOR, LSHIFT, RSHIFT, LCIRC, RCIRC.... continue reading
Bit-string flicking in ACSL is the performing of bitwise operations on binary numbers. NOT, AND, OR, XOR, LSHIFT, RSHIFT, LCIRC, RCIRC.... continue reading
{ updated: 2025-12-19 13:54:00 }
How to Send Plain Text Responses in Nginx
Tutorial on how to send plaintext text/plain responses in Nginx without having to render a text file... continue reading
Tutorial on how to send plaintext text/plain responses in Nginx without having to render a text file... continue reading
{ updated: 2025-12-17 15:10:01 }
How to Create Large Files in Linux and macOS 1GB 10GB 100GB 1TB
Linux and macOS commands to create large files in Linux. You can create files of any size, including 1GB, 10GB, 100GB and 1TB files.... continue reading
Linux and macOS commands to create large files in Linux. You can create files of any size, including 1GB, 10GB, 100GB and 1TB files.... continue reading
{ updated: 2025-12-17 13:40:59 }
ACSL Junior Change Digits Problem
My Python solution for the ACSL Junior Division 2003-2004 Contest 1 Problem Change Digits. Includes the problem solving logic and Python code tips.... continue reading
My Python solution for the ACSL Junior Division 2003-2004 Contest 1 Problem Change Digits. Includes the problem solving logic and Python code tips.... continue reading
{ updated: 2025-12-03 22:32:48 }
Python Syntax Warning "\d" is an invalid escape sequence
If you get the syntax warning "\d" is an invalid escape sequence, this blog post contains the working solution.... continue reading
If you get the syntax warning "\d" is an invalid escape sequence, this blog post contains the working solution.... continue reading
{ updated: 2025-11-26 20:49:06 }
ACSL Senior Division
Blog post with guidelines and tips about how to coach your American Computer Science League ACSL Senior Division club.... continue reading
Blog post with guidelines and tips about how to coach your American Computer Science League ACSL Senior Division club.... continue reading
{ updated: 2025-11-26 17:18:32 }
ACSL Intermediate Division
Blog post about how to coach your ACSL Intermediate Division club.... continue reading
Blog post about how to coach your ACSL Intermediate Division club.... continue reading
{ updated: 2025-11-25 05:12:15 }
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