New info about VB image and test server login.

Author: V-Z

presentation/linux_bash_metacentrum_course.tex

@@ -151,7 +151,7 @@ \subsection{Learning machine}
 	\begin{multicols}{2}
 		\begin{itemize}
 			\item If you do not have Linux installed, download and install VirtualBox from \url{https://www.virtualbox.org/}
-			\item Download openSUSE Leap 15.3 Linux distribution for this course from \url{https://botany.natur.cuni.cz/zeisek/openSUSE_Leap_courses.ova} ($\sim$4.6~GB)
+			\item Download openSUSE Leap 15.6 Linux distribution for this course from \url{https://botany.natur.cuni.cz/zeisek/openSUSE_Leap_courses.ova} ($\sim$8.2~GB)
 			\item Launch VirtualBox and go to menu \textbf{File | Import appliance\ldots} to import it. When done, launch it (\textbf{Start})
 			\item See also \url{https://trapa.cz/en/vm-for-courses}
 		\end{itemize}
@@ -1253,11 +1253,11 @@ \subsection{Screen}
 		\end{bashcode}
 		\vfill
 		\begin{itemize}
-			\item Toy server: user names \texttt{cusr01}--\texttt{cusr30}
+			\item Toy server: user names \texttt{courseu01}--\texttt{courseu35}
 		\end{itemize}
 		\vfill
 		\begin{bashcode}
-    ssh cusrXY@vyuka.natur.cuni.cz
+    ssh courseuXY@vyuka.natur.cuni.cz
 		\end{bashcode}
 		\vfill
 		\begin{itemize}