Portainer: How to Fix “Unable to retrieve image details”
I cannot access container’s console in Portainer. When click Console link, it showed error message…
Portainer: How to Fix “Unable to retrieve image details”
I cannot access container’s console in Portainer. When click Console link, it showed error message “Unable to retrieve image details”. To fix this, I remove Portainer image and pull again with portainer/portainer-ce:sts image. Use the following commands to stop then remove the current Portainer. Your other applications/containers will not be removed. # docker stop portainer…
MySQL: How to Count Duplicated Records
The following query can be used to count duplicated records in MySQL:
MySQL: How to Strip HTML Tags
The following regular expression function can be used to strip HTML tags: It is very simple.
Kdenlive: How to Fix Audio Record Device
I unable to do audio recording in Kdenlive. Audio device does not show in Settings => Configure Kdenlive => Capture => Audio tab. To fix this issue, install libqt5multimedia5-plugins. Restart Kdenlive and go to Settings => Configure Kdenlive => Capture => Audio tab. Audio device list will be shown and audio recording can be used…
XAMPP: How to Open Phpmyadmin Access
XAMPP’s Phpmyadmin folder is forbidden as default if accessed from internet. To open access this folder we have to edit /xampp/apache/conf/extra/httpd-xampp.conf file in Windows or /opt/lampp/etc/extra/httpd-xampp.conf file in Linux. Open httpd-xampp.conf file in text editor Find the following line: Change to the following line: Restart Apache and phpmyadmin can be accessed from internet.
Ubuntu: How to Install RTL8192EU Driver
First, we install all packages required for the installation of the driver using this command: Now clone the git repository: Move to the new folder created: Remove current drivers (check with dkms status or sudo lshw -C network what drivers are available): Blacklist the current driver: And finally install the driver: Reboot or load the driver by doing sudo modprobe…
MySQL: How to Fix “Field Doesn’t Have A Default Value” Error
MySQL or MariaDB install has default value of sql mode named STRICT_TRANS_TABLES. The MySQL docs for STRICT_TRANS_TABLES state: Strict mode controls how MySQL handles input values that are invalid or missing. A value can be invalid for several reasons. For example, it might have the wrong data type for the column, or it might be…
Moving Averages and Stochastic: Simple Indicators for a Simple Trading Strategy
Strategies help traders avoid common mistakes by providing a strict and understandable analysis system. By following it, you get closer to success and understanding market patterns. Here’s a simple strategy that both beginners and professionals can use. Required indicators: Short-term moving average (50-period MA) Long-term moving average (100-period MA) Classic Stochastic (14, 3, 3) Instructions…
Ubuntu: How to Fix “Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg)”
To resolve this issue, we have to export GPG key from deprecated keyring. Get list of existing keys Export the key Key BE1229CF is the last 8 digit taken from key list. The following message will appear: Now we can update our apt source file for the repository (e.g., /etc/apt/sources.list.d/microsoft.list), adding a signed-by tag: Update apt to make…
