“Failed - Network error” when exporting from phpMyAdmin (SOLVED)
Posted by Alex On May 2, 2022
phpMyAdmin allows ones to export databases and individual tables (as well as individual rows) in the web interface. In the latest stable version of phpMyAdmin 5.1.3, users encountered a problem when exporting data from tables and databases to a file. Regardless of the selected settings, instead of downloading the file, an error is shown: Failed […]
“Error: failed to commit transaction (invalid or corrupted package)” (SOLVED)
Posted by Alex On May 2, 2022
When updating or installing packages in Arch Linux, Manjaro and their derivatives, you may encounter the “error: failed to commit transaction (invalid or corrupted package). Errors occurred, no packages were upgraded.” issue. Full error log: :: Retrieving packages… libinih-55-2-x86_64 15.4 KiB 385 KiB/s 00:00 [############################################] 100% (40/40) checking keys in keyring [############################################] 100% (40/40) checking […]
PaySend Invite code: 0d8425
Posted by Alex On April 22, 2022
Do you look for PaySend Invite code? Ok, you got it! Your PaySend Invite code is 0d8425. PaySend Invite code 2022 You can use this Invite code in 2022, 2022 or later. How to use a PaySend Invite code? Dear customer, if you received a Invite code, you can use it to make a free-of-charge international […]
What happens if an IPv4 client tries to access an IPv6-only server (SOLVED)
Posted by Alex On April 9, 2022
Question: Hey! The article says that IPv6 is a completely different protocol, I had a question. If my recipient's email works only on IPv6 (that is, his mail server listens only through the IPv6 protocol), does this mean that when sending a letter from a mail server that is connected only to IPv4, the letter […]
How to edit the Access denied page in Squid? How to insert custom pictures and mail?
Posted by Alex On April 7, 2022
The custom Access denied page can only be shown if the user connects via HTTP. For HTTPS connections (which are currently the vast majority), it is impossible to change the displayed page (that is, display the configured Access denied page) due to the very nature of HTTPS, which is precisely designed to ensure that the […]
What is the difference between “systemctl reboot” and “reboot” and “systemctl poweroff” and “poweroff”
Posted by Alex On April 6, 2022
What's the difference between sudo systemctl reboot And sudo reboot Is it true that the use of commands depends on the operating system, and that one will execute a shorthand version, the other will use systemctl? Answer: The halt, poweroff, reboot commands are implemented to maintain basic compatibility with the original SysV commands. Verbs systemctl […]
How to convert JPG to PDF
Posted by Alex On April 3, 2022
The article “How to convert PDF to JPG using command line in Linux” shows how to split a PDF file into separate pages while converting them to images. But what if you want to do the opposite? How to assemble JPG images into a PDF file? This article is devoted to this, which will tell […]
How to convert PDF to JPG using command line in Linux (SOLVED)
Posted by Alex On April 2, 2022
PDF files are not very easy to split into image files in most programs that are used to open these files. However, there are several command line utilities for this. This article will show you how to convert PDF to JPEG on the Linux command line. ImageMagick (convert) To convert PDF to individual image files, […]
Error “convert: cache resources exhausted” (SOLVED)
Posted by Alex On March 22, 2022
When using the convert utility to convert images, you may encounter an error stating that the cache resources have been exhausted. Command example: convert -density 300 -quality 100 input.pdf output.png An example of the error it causes: convert-im6.q16: cache resources exhausted `/tmp/magick-q7O_IcbbGpFULs5R34rLlwAyeW1slGHi19' @ error/cache.c/OpenPixelCache/4095. This error occurs when two conditions are combined: processing a large […]
Error “attempt to perform an operation not allowed by the security policy `PDF’” (SOLVED)
Posted by Alex On March 22, 2022
On Debian, Ubuntu, Linux Mint, Arch Linux, and derivative systems, when converting documents from PDF to PNG, an error occurs: attempt to perform an operation not allowed by the security policy `PDF' An example of a command that causes this error: convert -density 300 -quality 100 PL48536179.pdf out.jpg convert-im6.q16: attempt to perform an operation not […]