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Showing posts from December, 2024

Ubuntu Linux Boot Repair

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Boot-Repair Warning:  This software is able to share information about your device for diagnostic purposes. You can chose to opt out. Please read this page fully. The log is quite helpful especially for the novice users. Boot-Repair  is a simple tool to repair frequent boot issues you may encounter in Ubuntu like when you can't boot Ubuntu after installing Windows or another Linux distribution, or when you can't boot Windows after installing Ubuntu, or when GRUB is not displayed anymore, some upgrade breaks GRUB, etc. Boot-Repair lets you fix these issues with a simple click, which (generally reinstalls GRUB and) restores access to the operating systems you had installed before the issue. Boot-Repair also has advanced options to back up table partitions, back up bootsectors, create a  Boot-Info  (to get help by email or forum), or change the default repair parameters: configure GRUB, add kernel options (acpi=off ...), purge GRUB, change the default OS, restore a Wind...

LiteSun Digital Timer Manual

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https://www.amazon.com/FosPower-Electrical-Outlets-Programmable-Capacity/dp/B07958YD8R/ref=asc_df_B07958YD8R/?tag=hyprod-20&linkCode=df0&hvadid=692875362841&hvpos=&hvnetw=g&hvrand=14083707952334820094&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9026289&hvtargid=pla-2281435177898&mcid=916b8c9e65b539f5aa0e7cda5d70922b&hvocijid=14083707952334820094-B07958YD8R-&hvexpln=73&th=1 Set up:      Clock Mode:               Hold SET for 2 seconds till                - On the Lower Left in the screen frame SET starts flashing.                -  On the Top of the the Day - MO, TU, WE, TH, FR, SA, SU starts flashing.  Set the Current Day by pressing buttons : [PROG/+] for moving forward, [-] for moving backward.               - ...

Digital Advertising

Promote Business through Google Ads.  Options: A. Create a Google Business Profile, and forward customers to the business profile, provided by Google. B. Forward customers to Hosted Domain website  - Specific Webpages, for up-to-date contents, and offers, available within the website. 

Insecure Coding Examples

 Below are examples of insecure code practices that expose applications to vulnerabilities. Each example highlights the issue and its consequences. 1. SQL Injection Issue : Dynamic queries with unsanitized user input allow attackers to manipulate SQL statements. Insecure Example (Python) : import sqlite3 def get_user(username): conn = sqlite3.connect("example.db") cursor = conn.cursor() query = f"SELECT * FROM users WHERE username = '{username}'" # Bad practice! cursor.execute(query) return cursor.fetchone() user_input = "'; DROP TABLE users; --" # Malicious input print(get_user(user_input)) Why insecure : The input is directly concatenated into the SQL query, allowing SQL injection (e.g., deleting tables or accessing unauthorized data). 2. Hardcoded Credentials Issue : Hardcoding secrets like passwords exposes them if the code is leaked. Insecure Example (Java) : public class DatabaseConfig { public st...

Secure Coding Examples

 Secure coding refers to the practice of writing software in a way that minimizes security vulnerabilities. Below are examples of secure coding practices in different contexts. 1. Input Validation Issue : Unvalidated input can lead to injection attacks (SQL injection, Cross-Site Scripting). Solution : Always validate and sanitize user inputs. Example: SQL Injection Prevention (Python with SQLAlchemy) from sqlalchemy import create_engine, text # Database connection engine = create_engine('sqlite:///example.db') # Unsafe query (never do this!) # user_input = "'; DROP TABLE users; --" # Secure query using parameterized queries def get_user(username): query = text("SELECT * FROM users WHERE username = :username") with engine.connect() as connection: result = connection.execute(query, {"username": username}) return result.fetchone() username = "john_doe" print(get_user(username)) Why secure : Parameteri...