![Warning with NO consequences: postfix/trivial-rewrite[]: warning: relay_domains lookup failure](https://www.rubin.com.np/wp-content/themes/customizr/assets/front/img/thumb-standard-empty.png)
I get the below warning in the mail log file. postfix/trivial-rewrite[]: warning: relay_domains lookup failure The mail server is working well without any issues. What can this error mean? Running the test below produces the required output. postmap -q "example.org" mysql:/etc/postfix/mysql/relay_domains.cf Running with verbose confirms again that the query is […]
Rubin
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Trying the configure SSL on Apache2 on Ubuntu server installed Apache sudo apt install apache2 Opened ufw firewall sudo ufw allow 'Apache' ufw allow https Installed SSL files in /root/cert chmod 400 /root/cert/* chmod 500 /root/cert/ In /etc/apache2/sites-available found two conf files: domainname.conf and default-ssl.conf.wordpress.conf Did not know which one […]
Wirecutter recommends the uBlock Origin ad blocker. As I understand, in addition to advertisements, ad blockers can also be used to block annoyances. At the top of each guide on Wirecutter, I see a search box with an animation. The text in the animation changes, “Show me the research on…”, […]
(Windows 11) I want to disable the Ctrl+T hotkey that hides/shows the taskbar so that it can be used to open new browser tabs instead. It seems to be a problem with PowerPoint; I am currently running the latest versions of PowerPoint 365 and Edge, but I have had this […]
I’m considering the use of macros to replace types in my C++ code and I’d like to get insights on whether this is a recommended practice. Below is an example of the macros I’m contemplating: #define u8 undefined char #define u16 undefined short #define u32 undefined int #define u64 undefined […]
I have a simple .exe program that prints messages to the Windows terminal (console). This program is operated by someone who needs the font size to be as big as possible. Is it possible to change the display properties of the terminal window (e.g., font size) that would apply just […]
I recently got an acer chromebook for my work but the OS it uses is a pain to work with. I plan on switching the OS to get it to work better with some of the tools i use in addition to getting away from chrome OS. IS there any […]
I got a new 84-key keyboard which claims to be made for the UK for its compactness and realize that the forward slash and the vertical slash are not found on it, although they are labelled and are accessible via Alt+- and Alt+`. The key which is labelled with them […]
I have a Windows machine and I want to make a remote tunnel to my Linux machine and use SOCKS5 to run remote commands in Linux through PROXYCHAINS. I tried all the options but I can’t get a working tunnel. Does anyone know how to do this?