Step-by-Step Guide: Setting Up Your Avalara Free Account for US Sales Tax

  • 04.06.2026
  • Posted in: Ocart
  • 10 views

Step 1: Sign Up for a Free Developer Account https://developer.avalara.com/freeTrial/ Click Start AvaTax Trial Fill in your details and click Next. On the page Review your order click Start your Free Trial Step 2: In your personal account, click on the icon with three stripes in the upper left corner. In the window that appears, click Settings - License and API keys On the License and API keys page, click Create License...

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Ocart Import/Export Tool: Fix Missing category_ids and Invalid store_id Errors

  • 04.04.2026
  • Posted in: Ocart
  • 18 views

If you are encountering errors while importing categories into Oсart, it usually means your spreadsheet has formatting issues or data mismatches between tabs. This guide provides a step-by-step solution for the following common error logs: Export/Import: Missing category_ids in worksheet 'CategorySEOKeywords'! Export/Import: Invalid store_id='' used in worksheet 'CategorySEOKeywords'! 1. Removing "Ghost" Rows The...

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Launch Your Online Store in 1 Hour: Automated Product Management via Google Sheets

  • 04.04.2026
  • Posted in: Ocart
  • 41 views

Stop wasting days on manual data entry. With ocart.net, you can build a professional online store and manage your entire inventory directly from Google Sheets using our automated synchronization technology. Changing product IDs or updating thousands of items shouldn't be a headache. This guide shows you how to use our "drag-and-fill" method to keep your entire database perfectly synchronized. Step-by-Step Instructions 1....

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How to check folder permissions on a server using PHP

  • 12.26.2025
  • Posted in: PHP
  • 195 views

You have a folder public on the server /var/www/site.com/public/ And want to check its permissions without accessing the terminal, using PHP. To do this, run the following command. $folder = '/var/www/site.com/public/'; echo 'Permissions: ' . substr(sprintf('%o', fileperms($folder)), -3); echo 'Owner: ' . posix_getpwuid(fileowner($folder))['name']; echo 'Group: ' . posix_getgrgid(filegroup($folder))['name']; The result...

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Setting up a Firewall for a Server Using UFW

  • 12.19.2025
  • Posted in: Linux
  • 145 views

UFW is a convenient wrapper around iptables. 1. Checking and installing UFW sudo apt update sudo apt install ufw -y Examination: ufw status Most likely: Status: inactive. This is normal. 2. You must allow SSH (otherwise you'll crash!) sudo ufw allow OpenSSH 3. Allow the required services For web server: sudo ufw allow 80/tcp # HTTP sudo ufw allow 443/tcp # HTTPS If you are planning Python / API (e.g. 8000): sudo...

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Setting up SSH access on server and logging in via SSH without a password

  • 12.19.2025
  • Posted in: Linux
  • 213 views

On your local computer, in your home directory, find the .ssh folder, if it doesn't exist, create it. mkdir ~/.ssh For the first login via SSH, we write in the terminal ssh username@your.ip.address When a question appears, do this: Are you sure you want to continue connecting (yes/no/[fingerprint])? yes Be sure to answer yes not y After this: The key will be saved in ~/.ssh/known_hosts SSH will ask for the user's password. Now,...

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Cookie notice GDPR wordpress plugin

Cookie Notice GDPR displays a cookie notice at the bottom of the site for first-time visitors with customizable text, button, and GDPR policy link. Description Cookie Notice GDPR allows WordPress site owners to display a cookie consent notice at the bottom of their website. Features include: * Customizable text for the cookie notice. * Customizable "Accept" button color. * Customizable background color. * Customizable...

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Convert strtotime() function to date

  • 01.15.2025
  • Posted in: PHP
  • 401 views

strtotime function expects to be given a string containing an English date format and will try to parse that format into a Unix timestamp (the number of seconds since January 1 1970 00:00:00 UTC) Let's write the current date in the Unix timestamp format: echo strtotime("now"); This is how you can add three days to the current time echo strtotime("+3 day") Converting the Unix timestamp to the current date and time echo...

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Install Opencart 4 on NGINX

In order to install Opencart 4 you must have php 8.0+ installed Also in the php.ini file you need to uncomment the following modules extension=curl.so; extension=gd.so; extension=zip.so; Note: If you don't have them on your system, install them. Replace the numbers 8.3 with your php version apt-get install -y php8.3-curl php8.3-gd php8.3-zip Restart PHP-FPM systemctl restart php8.3-fpm I want my site opencart4.com to...

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Errors from nouveau display driver on Linux

  • 01.13.2025
  • Posted in: Linux
  • 421 views

If you see the following error in the logs nouveau 0000:0a:00.0: firmware: failed to load nouveau/nv106_fuc084 (-2) nouveau 0000:0a:00.0: firmware: failed to load nouveau/nv106_fuc084d (-2) This means that you have a problem with the drivers for your Nvidia video card. To fix this error, enter in the terminal apt update && apt upgrade apt autoremove apt-get remove --purge nvidia* apt-get remove --purge "nvidia*" Reboot...

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