Tuesday, 26 June 2018

Linux from the command line | Linux for sysadmins -- Automating with SSH

Linux from the command line | Linux for sysadmins -- Automating with SSH

It's more than just a remote terminal tool, ssh has a lot of other powerful features for Linux users and sysadmins.

Once you get things in this article worked out, look up and play with ssh -Y

https://www.linuxjournal.com/content/easy-ssh-automation

Linux from the command line -- Checking disk space

Linux from the command line -- Checking disk space

One note here, with df you'll probably want to use "df -h" and not "df -H" as the latter will use the stupid damned si units nonsense where 1k=1000 bytes instead of a proper 1024.
Other than that, carry on.
https://www.linux.com/learn/intro-to-linux/2018/6how-check-disk-space-linux-command-line

Friday, 22 June 2018

Linux for sysadmins -- Removing Docker images, containers, and volumes

Linux for sysadmins -- Removing Docker images, containers, and volumes

So you're done with that Docker container. It served you well, but you don't need it any more. Now what?
https://www.tecmint.com/remove-docker-images-containers-and-volumes/#

Linux from the command line -- using the netstat command

Linux from the command line -- using the netstat command

What's going on with your Linux box's network?
https://www.howtoforge.com/linux-netstat-command/

Wednesday, 20 June 2018

Linux for sysadmins -- checking user groups

Linux for sysadmins -- checking user groups

The Linux user and group systems allow powerful, fine-grained access control to system applications, files, and resources. It's important to know how to list and manage user and group membership.

As an example, to use VirtualBox on Linux, users must be a member of the vboxusers group.
Other applications require a user to be a member of the group dialout.
https://www.2daygeek.com/how-to-check-which-groups-a-user-belongs-to-on-linux/#

Linux from the command line -- manipulating text file formatting with expand and unexpand

Linux from the command line -- manipulating text file formatting with expand and unexpand


The link is for the expand command. Find info on it's counterpart, unexpand, at this link: https://www.howtoforge.com/linux-unexpand-command/
https://www.howtoforge.com/linux-expand-command/

Linux for sysadmins -- Processes and process management for Linux

Linux for sysadmins -- Processes and process management for Linux
https://www.tecmint.com/linux-process-management/