Other
Graphical system- and process-monitoring tools that come with Ubuntu include the following:
• vncviewer—AT&T’s open-source remote session manager (part of the Xvnc package), which you can use to view and run a remote desktop session locally. This software (discussed in more detail in Chapter 17, “Remote Access with SSH and Telnet”) requires an active, background, X session on the remote computer.
• gnome-nettool—A GNOME-developed tool that enables system administrators to carry out a wide range of diagnostics on network interfaces, including port scanning and route tracing.
• ethereal—A graphical network protocol analyzer that can be used to save or display packet data in real time and has intelligent filtering to recognize data signatures ...
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