Linux

Create a qcow2 Image Create a RAW Image Re-Sizing a Disk Image Convert between image formats.

Install the dmidecode package: Get the Manufactuer, Product Number / Model Name, Serial Number etc. dmidecode -t 1 More Documentation:

SHA256 Source Medium / List of other methods.

RedHat, Centos, Scientific, and related flavors: systemctl set-default multi-user.target ​

The Postfix default attachment size is 10MB i.e. 10240000 bytes. This command will output the currently set attachment size limit: postconf | grep message_size_limit To increase the limit to 50 MB,…