EDIT DEC 14, 2022: It seems I might have missed an important piece of understanding about DKIM. I am currently working on this. If you see this message, my new understanding is this: DKIM is handled on the email server Therefore, if you are not running an email server and using a 3rd party ESP, then the DKIM private key…
Category: Tutorial
How to Fix an App Stuck Between Screens in Ubuntu
I had a weird situation today. I have two monitor displays: a laptop monitor on my desk and a big monitor above that. They are joined logically in that way in the display settings of ubuntu. Suddenly my Telegram app got ‘stuck’ between the two. The top toolbar that you grab with your mouse was unable to be accessed because…
HOW TO COMPRESS BIG PDFS IN UBUNTU
When someone sends a PDF that’s too huge, just navigate to the directory, and run this command: gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/prepress -dNOPAUSE -dQUIET -dBATCH -sOutputFile=name_of_compressed_OUTPUT_file.pdf name_of_UNcompressed_INPUT_file.pdf For even smaller files and lower resolution of 150dpi, just change the /prepress part to /ebook SPEED TIP: to quickly get the path in your terminal so you can cd to it quickly, just…
How to fix a damaged PDF file in Ubuntu
How to fix a damaged PDF file in Ubuntu…
My Journey to Nymea (land)
Edit: Feb 6, 2023 – Nymea has recently launched version 1.6 which appears to have added / adjusted at least some of my ‘positive criticism’ comments below so some may no longer be relevant. Further, be advised always to go to the official nymea.io documentation for the latest and greatest instructions. My stuff is just to go alongside with it.…
How to do DMARC, SPF and BIMI settings (and other stuff) in Digital Ocean DNS settings
SECOND EDIT: DEC 12, 2022 FIRST EDIT DATE: Sept 1, 2022 I had a hard time with this one for some reason. My email provider (Webnames) has an email setup page which showed the SPF records without quotations. Even their tech support told me not to use quotations in the txt file entries in my server! I guess they hadn’t…
HOW TO VIEW AND CHANGE PRESTASHOP MYSQL TABLES IN UBUNTU SERVER
Learn a bit of MySQL while we manually force Prestashop to point to a new domain…
HOW TO VIEW AND CHANGE PRESTASHOP MYSQL TABLES IN UBUNTU SERVER
When your prestashop keeps pointing to the old domain….
Giving a Remote Dev Firm SSH Access to your Ubuntu Server
How to share quick (but not super secure) SSH access to Ubuntu server…
How to open a winmail.dat attachment email
‘winmail.dat’ if you get it, is a result of the sender having bad settings on their Windows operating system in their Outlook Express email client. They could fix it and make it go away so you could ask them to do that (and you should) but if you don’t want to waste the time or brain power, there is a…