Online Earning

The Dilemma of Irrelevant Influencer Endorsements in Cryptocurrency Ducky Bhai,Rajab Butt, and Nadeem Nani Wala

Cryptocurrency is a complex and rapidly evolving domain that demands a deep understanding of technology, finance, and market dynamics. Despite this, the trend of influencers with no relevant expertise entering the crypto space is on the rise. In Pakistan, figures like Ducky Bhai, Rajab Butt, and Nadeem Nani Wala—popular for their comedic and family-oriented content—have begun dabbling in this technical field, raising questions about credibility and intentions.

For example, Ducky Bhai, a well-known vlogger, has launched a cryptocurrency-related course through his platform, Join Elite Group. While the website promotes the course with promises of knowledge and guidance, there is little evidence of his qualifications or expertise in blockchain technology or trading strategies. Similarly, Rajab Butt and Nadeem Nani Wala, both recognized for their humorous content, lack any credible background in cryptocurrency, making their involvement in such ventures even more questionable.

The primary concern is the potential for misinformation. These influencers have built a loyal fan base based on their entertaining content, but their audiences may not critically evaluate the depth and validity of the information presented in these courses. This can lead to poor investment decisions, financial losses, and a distorted understanding of the crypto industry.

Moreover, platforms like Join Elite Group highlight a broader issue: the monetization of influence over expertise. While the allure of cryptocurrency’s profitability is strong, courses or advice from unqualified individuals risk doing more harm than good. True professionals in the field invest years mastering blockchain technologies, market analysis, and risk management. Their efforts are overshadowed when influencers with little understanding dominate the narrative.

In conclusion, while Ducky Bhai, Rajab Butt, and Nadeem Nani Wala have every right to explore new avenues, they must be transparent about their knowledge limitations. Crypto education is too critical to be treated as a trend or cash-grab opportunity. Viewers must approach such courses critically and prioritize learning from well-qualified educators with proven expertise in cryptocurrency and blockchain.

Here are some of the best free cryptocurrency courses available online to get started with blockchain and cryptocurrency concepts:

  1. Coursera: “Bitcoin and Cryptocurrency Technologies”
    Offered by Princeton University, this beginner-friendly course covers the basics of how Bitcoin and other cryptocurrencies work. While the course content is free, certification may have a fee.
    Visit Coursera for details.
  2. Udemy Free Courses
    • Cryptocurrency Investment Fundamentals: Covers buying, selling, and storing cryptocurrencies.
    • Blockchain & Cryptocurrency for Beginners: Introduces blockchain concepts and recent developments in FinTech.
      Explore Udemy’s Free Courses.
  3. EdX: “Introduction to Blockchain”
    Provided by institutions like Berkeley and MIT, this platform offers free access to many blockchain-related courses.
    Visit EdX.
  4. Bitdegree: Blockchain and Crypto Learning
    Offers interactive lessons on blockchain, Bitcoin, and crypto trading basics. Some courses are beginner-friendly and free.
    Check Bitdegree.
  5. Coursesity: Cryptocurrency Course Collection
    A curated list of free cryptocurrency tutorials from platforms like Coursera, Udemy, and more, tailored to different skill levels.
    Visit Coursesity.

 

January 14, 2025 by Crypto Freelancing Latest Online Earning 0

100 Basic-Level Linux Administrator Questions and Answers for Beginners

Linux is one of the most versatile and widely-used operating systems, especially in server environments and development setups. Whether you’re starting your journey in Linux system administration or preparing for interviews, mastering basic Linux commands and concepts is essential. In this blog, we’ll explore 100 basic-level Linux administrator questions with answers to help you practice and improve your Linux skills.

  1. What is Linux?

Answer: Linux is an open-source operating system based on UNIX, used for servers, desktops, and embedded systems.

  1. What is the Linux kernel?

Answer: The kernel is the core of the Linux OS that manages hardware resources and system processes.

  1. What are Linux distributions?

Answer: A Linux distribution is an OS based on the Linux kernel, bundled with software like Ubuntu, CentOS, Fedora, etc.

  1. What command is used to list files in a directory?

Answer: ls

  1. How do you change the current directory?

Answer: cd [directory_name]

  1. What is the command to display the current working directory?

Answer: pwd

  1. How do you create a new directory in Linux?

Answer: mkdir [directory_name]

  1. How do you remove an empty directory?

Answer: rmdir [directory_name]

  1. What is the command to delete a file?

Answer: rm [file_name]

  1. How do you copy files?

Answer: cp [source] [destination]

  1. How do you move or rename a file?

Answer: mv [source] [destination]

  1. What is the root user?

Answer: The root user is the administrative user with full privileges.

  1. How do you switch to the root user?

Answer: su or sudo -i

  1. What does the chmod command do?

Answer: It changes the permissions of a file or directory.

  1. How do you check the current system date and time?

Answer: date

  1. How do you display the contents of a file?

Answer: cat [file_name]

  1. What is the touch command used for?

Answer: To create an empty file or update the timestamp of an existing file.

  1. What does the df command do?

Answer: Displays disk space usage.

  1. How do you check memory usage?

Answer: free -h

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  1. What is the command to find your Linux kernel version?

Answer: uname -r

  1. How do you find out which Linux distribution you are using?

Answer: cat /etc/os-release

  1. How do you list running processes?

Answer: ps or top

  1. What is the command to kill a process?

Answer: kill [PID]

  1. What is the grep command used for?

Answer: To search text in files using patterns.

  1. How do you find the path of a command?

Answer: which [command_name]

  1. What is a symbolic link?

Answer: A shortcut to another file or directory created using ln -s.

  1. What does the whoami command do?

Answer: Displays the current user.

  1. How do you add a new user?

Answer: sudo useradd [username]

  1. How do you delete a user?

Answer: sudo userdel [username]

  1. What is the passwd command used for?

Answer: To change a user’s password.

  1. What does the history command do?

Answer: Displays the list of previously executed commands.

  1. How do you edit a file in Linux?

Answer: Using text editors like vi, nano, or vim.

  1. What is the default shell in most Linux systems?

Answer: Bash (Bourne Again Shell)

  1. How do you compress files in Linux?

Answer: gzip [file_name] or tar -czf [archive.tar.gz] [files]

  1. What is the ping command used for?

Answer: To check the connectivity to another system or server.

  1. How do you change file ownership?

Answer: chown [owner:group] [file_name]

  1. What is the difference between apt and yum?

Answer: apt is used in Debian-based systems, and yum is used in Red Hat-based systems.

  1. How do you install a package in Debian-based Linux?

Answer: sudo apt install [package_name]

  1. How do you uninstall a package?

Answer: sudo apt remove [package_name]

  1. What does ifconfig do?

Answer: Displays or configures network interfaces (use ip in newer systems).

41. How do you restart a Linux system?

Answer: sudo reboot

42. How do you shut down a Linux system?

Answer: sudo shutdown now

43. What does the hostname command do?

Answer: Displays or sets the hostname of the system.

44. How do you view system logs?

Answer: cat /var/log/syslog or journalctl

45. What is a cron job?

Answer: A scheduled task configured using the crontab utility.

46. How do you edit cron jobs?

Answer: crontab -e

47. What is the purpose of the /etc/passwd file?

Answer: It stores user account information.

48. What is the purpose of the /etc/shadow file?

Answer: It stores encrypted user passwords.

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49. How do you check disk usage for a specific directory?

Answer: du -sh [directory_name]

50. What is the command to unmount a filesystem?

Answer: umount [mount_point]

51. How do you create a file system on a partition?

Answer: mkfs.ext4 [device_name]

52. What is the purpose of /etc/fstab?

Answer: It defines how and where partitions should be mounted automatically.

53. What does the mount command do?

Answer: Mounts a filesystem to a directory.

54. What is the default runlevel for most Linux systems?

Answer: Runlevel 5 (multi-user graphical mode) or 3 (multi-user command-line mode).

55. How do you change runlevels?

Answer: Use the telinit or systemctl isolate command.

56. What is a package manager?

Answer: A tool to install, update, and remove software (e.g., apt, yum, dnf).

57. What does echo do in Linux?

Answer: Displays a string or outputs text to the terminal.

58. How do you search for files in Linux?

Answer: find [path] -name [file_name]

59. How do you search for a specific package?

Answer: apt search [package_name] or yum search [package_name]

60. How do you check open ports on your system?

Answer: netstat -tuln or ss -tuln

61. What does the wget command do?

Answer: Downloads files from the web.

62. What is the difference between hard link and soft link?

Answer:

  • Hard Link: Points to the file’s data.
  • Soft Link: A symbolic reference to a file’s path.

63. What is the purpose of tar?

Answer: Archives multiple files into one file.

64. How do you extract a tar.gz file?

Answer: tar -xzf [file.tar.gz]

65. How do you check the permissions of a file?

Answer: ls -l [file_name]

66. What is the command to check system uptime?

Answer: uptime

67. What does df -h show?

Answer: Disk space usage in a human-readable format.

68. What is the /proc directory?

Answer: A virtual filesystem with information about running processes.

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69. How do you monitor system resource usage?

Answer: top or htop

70. What does the alias command do?

Answer: Creates shortcuts for commands.

71. How do you create an alias?

Answer: alias [alias_name]='[command]’

72. What is the env command used for?

Answer: Displays the environment variables.

73. How do you set an environment variable?

Answer: export VAR_NAME=value

74. What does the sed command do?

Answer: Edits text in a file or stream.

75. How do you extract specific lines from a file?

Answer: Using sed or awk.

76. What is the diff command used for?

Answer: Compares two files and shows the differences.

77. How do you create a partition in Linux?

Answer: Use the fdisk or parted command.

78. How do you check disk partitions?

Answer: lsblk or fdisk -l

79. How do you check CPU information?

Answer: cat /proc/cpuinfo

80. How do you check system memory usage?

Answer: cat /proc/meminfo or free -h

81. What is the purpose of the man command?

Answer: Displays the manual for a command.

82. What does the sudo command do?

Answer: Executes commands as another user (typically root).

83. What does the ls -a command do?

Answer: Lists all files, including hidden ones.

84. What is the use of nohup?

Answer: Runs a command immune to hangups (e.g., after logout).

85. How do you archive a directory?

Answer: tar -cvf [archive.tar] [directory_name]

86. How do you unzip a .zip file?

Answer: unzip [file.zip]

87. How do you view the first 10 lines of a file?

Answer: head [file_name]

88. How do you view the last 10 lines of a file?

Answer: tail [file_name]

89. What does the cut command do?

Answer: Extracts sections of lines from a file.

90. What is the uptime command used for?

Answer: Shows how long the system has been running.

91. How do you check the Linux OS version?

Answer: cat /etc/os-release

92. How do you forcefully delete a directory?

Answer: rm -rf [directory_name]

93. What is the purpose of /etc/hosts?

Answer: Maps hostnames to IP addresses.

94. What does the scp command do?

Answer: Securely copies files between systems.

95. What does the rsync command do?

Answer: Synchronizes files between locations.

96. How do you find large files on your system?

Answer: find / -type f -size +1G

97. What is the iptables command used for?

Answer: Configures the firewall rules.

98. What does the yum command do?

Answer: Manages software packages on Red Hat-based systems.

99. What is ssh used for?

Answer: Provides secure access to remote systems.

100. How do you display information about a command?

Answer: man [command_name] or [command_name] –help

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December 10, 2024 by Cloud Computing Latest Linux Online Earning Security Tech Support 1

WordPress Website Migration from Amazon LightSail to Bluehost

Migrating a WordPress website from Amazon Lightsail to Bluehost involves several steps. Here’s a step-by-step guide to ensure a smooth migration:

 

Step 1: Prepare Your Bluehost Account

  • Login to Bluehost: Access your Bluehost account dashboard.
  • Set up Hosting: Ensure your hosting environment is ready with a new domain or subdomain for the WordPress website.
  • Install WordPress: Use Bluehost’s one-click WordPress installer to create a fresh installation.

Step 2: Backup Your Lightsail WordPress Site

  1. Log in to Lightsail: Access your Lightsail console and identify the instance hosting your WordPress site.
  2. Access Your Instance via SSH: Open the terminal and connect to your Lightsail instance via SSH.

bash

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ssh -i Lightsail-Key.pem ubuntu@<Public-IP>

  1. Export Your Database:
    • Locate your database credentials in the wp-config.php file.
    • Run the following command to export your database:

bash

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mysqldump -u <DB_USER> -p <DB_NAME> > wordpress_db.sql

  1. Compress WordPress Files:
    • Navigate to the WordPress directory, usually /var/www/html.
    • Compress your WordPress files:

bash

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sudo tar -czvf wordpress_files.tar.gz /var/www/html

  1. Download the Backup Files:
    • Use SCP to transfer the files to your local machine:

bash

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scp -i Lightsail-Key.pem ubuntu@<Public-IP>:~/wordpress_files.tar.gz .

scp -i Lightsail-Key.pem ubuntu@<Public-IP>:~/wordpress_db.sql .

Step 3: Upload Files to Bluehost

  1. Log in to cPanel on Bluehost.
  2. Upload the Files:
    • Use the File Manager or an FTP client (e.g., FileZilla) to upload wordpress_files.tar.gz to the Bluehost directory (e.g., /public_html).
  3. Extract the Files:
    • Navigate to the File Manager, locate the uploaded file, and extract it.
  4. Import the Database:
    • In cPanel, go to phpMyAdmin.
    • Create a new database.
    • Import the wordpress_db.sql file into this database.

Step 4: Update Configuration

  1. Modify wp-config.php:
    • Update database credentials in the wp-config.php file:

php

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define(‘DB_NAME’, ‘new_database_name’);

define(‘DB_USER’, ‘new_database_user’);

define(‘DB_PASSWORD’, ‘new_password’);

define(‘DB_HOST’, ‘localhost’);

  1. Update Site URL:
    • Access phpMyAdmin and update the siteurl and home values in the wp_options table to match your new Bluehost domain.

Step 5: Test Your Website

  1. Preview Your Site:
    • Temporarily use Bluehost’s preview URL or modify your local hosts file to map the domain to Bluehost’s IP.
  2. Fix Any Issues:
    • Verify functionality, including plugins, themes, and permalinks.
    • Re-save permalinks under WordPress Settings > Permalinks.

Step 6: Update DNS

  1. Update Domain Nameservers:
  2. Wait for Propagation:
    • DNS changes can take up to 48 hours to propagate globally.

Step 7: Secure Your Site

  1. Enable SSL:
    • Use Bluehost’s SSL tool to enable a free SSL certificate.
    • Update the WordPress URL to use HTTPS.

Step 8: Final Testing

  • Verify the site works as expected.
  • Check for broken links or missing resources.
  • Monitor performance and traffic to ensure smooth operation.

Let me know if you need help with specific steps!

For further Assistance

https://www.upwork.com/freelancers/bilalkmk

December 5, 2024 by AWS Freelancing Latest Linux Online Earning Tech Support 0
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