Ubuntu

Your Ubuntu machine’s clock needs to stay correct, and the time zone setting only changes how that time is displayed. Time synchronization corrects the clock itself by checking it against time servers on the network, through a time client such as chrony. You’ll find which time client your system runs and set it up. What

Ubuntu’s status report can show the clock synchronized while the Time zone row still reads Etc/UTC. That split stands out to me: synchronization keeps the clock aligned, while the timezone sets regional display. You’ll be able to identify the setting that makes Ubuntu report local time for the region you need. First, compare the local-time

APT installs r-base, giving a saved script such as mean.R the runtime it needs. I’m eager to see how the package source changes which R version APT installs. Your first choice is between Ubuntu’s release package and CRAN’s signed repository. See which R version APT would install from each source for your Ubuntu release. Ubuntu’s

Knowing a program’s job but not its Ubuntu package name is enough to try apt search with a word describing that job. I can’t resist how a small search word can reach beyond package names into their descriptions. To make sense of a broad match, focus on the information APT searches. You can explore the

An app selected in App Center’s Manage view is a concrete target for removal. I’m curious what package removal leaves behind once that app is gone. Explore how Ubuntu’s package managers track apps beyond the App Center view. Notice the package type shown for the selected app. Package removal depends on how Ubuntu installed the

Why does the DNS reply list the resolver as Source when the query listed it as Destination? I couldn’t resist digging into how those fields mark the answer’s return trip. Wireshark turns that question into something you can inspect on Ubuntu or Debian. Get it running and start a capture while a DNS lookup takes