--- /dev/null
+---
+title: Authenticate to Cockpit from anywhere
+subtitle:
+author: Martin Pitt <<mpitt@redhat.com>>
+email: mpitt@redhat.com
+date: DevConv.CZ 2020
+theme: Singapore
+header-includes:
+ - \usepackage{wasysym}\usepackage{pgfpages}\setbeameroption{show notes}
+ - \newcommand{\fullsizeimg}[1]{\makebox[\linewidth]{\includegraphics[width=\paperwidth]{#1}}}
+...
+
+# Cockpit what?
+
+- Interactive Server admin web interface
+- Easy setup and troubleshooting for one or a few machines
+- Included in all major distros
+
+\note[item]{Conceptually: Linux session running in a web browser; technically very similar to ssh/VT/GNOME login}
+\note[item]{Aimed at admins who are new to Linux, e. g. coming from the Windows world and familiar with the concepts, but not Linux terminology}
+\note[item]{but also to experienced ones for infrequent tasks; not just setup, but also investigating “what is wrong with this machine”}
+
+
+# Extending LVM
+
+```sh
+pvcreate /dev/sdb2
+vgextend vg0 /dev/sdb2
+lvresize --extents '+100%FREE' vg0/data1
+resize2fs /dev/vg0/data1
+```
+
+\note[item]{for example, adding a new PV to an LV and resizing the file system you can spend some time coming up with these commands}
+\note[item]{lots of possibilities for screwing up}
+\note[item]{you can do it simply and safely with Cockpit like this → go to local browser}
+\note[item]{Storage page, vg0 in Devices (top right), + in Physical Volumes, add sdb2}
+\note[item]{expand data1 table line, click grow}
+
+# Contact
+
+- `#cockpit` on Freenode
+- https://cockpit-project.org
+
+\note[item]{Home page leads to mailing lists, documentation}
+\note[item]{thanks for your attention; Q+A}