Useful tips for everyday
What is Postfix flush? List all emails – you can list all mail of queue, using one of the following commands: postqueue -p. Flush all…
How do you prioritize IPv4 over IPv6? To have IPv4 favored over IPv6, you must enter a command like netsh interface ipv6 set prefixpolicy ::ffff:0:0/96…
What command shows hidden files and folders Linux? ls command To display hidden files or directories, we include the a flag in our ls command.…
Why does Linux use package managers? Package Managers are used to automate the process of installing, upgrading, configuring, and removing programs. There are many package…
How do you reset too many authentication failures? Fix the Too many authentication failures error Alternate solutions: Increase the MaxAuthTries on the server (definitively an…
Can you apply multiple patches to a ROM? Most of the time a ROM won’t work if you apply multiple patches. When working with a…
Which command is used to open a program? The Run command on an operating system such as Microsoft Windows and Unix-like systems is used to…
How do I expose docker container ports? You can expose a port through your Dockerfile or use –expose and then publish it with the -P…
What is a MX record example? Example of an MX-record: All emails sent to [email protected], willl be sent to the mail server mail.copernica.com with the…
What is buffer size in ping? A correctly formed ping packet is typically 56 bytes in size, or 64 bytes when the ICMP header is…