If you are on an Ubuntu host and need to determine from which package a file originated, the ‘dpkg’ utility has this ability. For example, if you need to know which package the ‘mkpasswd’ binary came from: $ which mkpasswd /usr/bin/mkpasswd $ dpkg -S /usr/bin/mkpasswd whois: /usr/bin/mkpasswd Which tell us it came from the ‘whois’ … Ubuntu: Determining the package origin of a file
As part of normal long-term operations, the number of kernel images on your system will accumulate and take up disk space. This issue with space will be even more pronounced if /boot is mounted to its own smaller partition. With Ubuntu 16.04, ‘apt autoremove –purge’ and configuration of the unattended upgrades can ensure that old … Unbutu: Removing unused kernel images and headers
In production data centers, it is not uncommon to have limited public internet access due to security policies. So while running ‘apt-get’ or adding a repository to sources.list is easy in your development lab, you have to figure out an alternative installation strategy because you need a process that looks the same across both development … Ubuntu: Installing Packages without Public Internet Access