Useful tips for everyday
How do I permanently delete mail from my Mac? Permanently delete emails Choose Mailbox > Erase Deleted Items, then choose an account. In the Mail…
What are the most common reasons for project failure? What are the main causes of project failure? Unclear or shifting goals. A communication problem. A…
What are the steps in designing a database? The process of designing a database includes the following basic steps: Analyze business needs and design a…
How do you sum if numbers? If you want, you can apply the criteria to one range and sum the corresponding values in a different…
How to setup virtual users and directories in vsftpd? Firstly we need to download and install the ftp server VSFTPD Most distros should have a…
What do you need to know about a buck converter? A buck converter, or DC-DC step-down switching regulator, is a type of DC-DC converter which…
Which is better SHA1 or SHA512? With SHA-1, you will get about 6 MB/s, using the full CPU. That’s already quite lower than the network…
Where is motd in Ubuntu? /etc/motd Ubuntu’s MOTD is generated by scripts when you log in, so you can’t just add it to the /etc/motd…
How can I open my computer I forgot my password? Boot your computer and immediately press on the F8 key repeatedly until your computer displays…
How does a 555 timer work in monostable mode? The 555 timer chip in monostable mode in an electronic circuit works like an egg timer.…