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When to Run
Remote System Maintenance Tools
Specialized remote system maintenance tools
are most useful when you want a dedicated and easy-to-use interface for
administering a system from a distance. These tools can also be used
locallyLinuxconf has both local and Web-based interfaces, but any of these
tools' Web-based interfaces may be accessed from the local computer. In fact,
the main aspect of these tools' utility lies in their easy-to-use interfaces
rather than in their remote access features. Conventional text-based and even
GUI administrative tools can be used remotely via remote login protocols like
those discussed in
Maintaining Remote Login Servers, and
Handling GUI Access with X and VNC Servers.Many new Linux administrators find
traditional text-based administration intimidating, so GUI administrative
tools, including those discussed in this chapter, can help them handle a Linux
system. Even experienced system administrators can benefit from such tools when
configuring specific systems, since few administrators fully understand every
detail of every subsystem on a Linux computer. Ideally, these tools can help
prevent misconfiguration by eliminating the possibility of entering typos in
critical configuration files and catching certain types of improper
configurations. In practice, it's still possible to misconfigure a system using
a GUI or remote administration tool, so you should still exercise caution when
you use such a tool. Ultimately, a good understanding of the subsystem you're
configuring and its interactions with related subsystems will help you more
than any GUI administrative tool.Two of the tools discussed in this chapter,
Linuxconf and Webmin, are designed as general-purpose tools to administer many
different subsystems. As such, they can be good for configuring the system in
broad strokes, but they lack the features needed to handle the more subtle
aspects of many complex subsystems. A few of these subsystems support their own
specialized administrative tools. Samba's SWAT is one such tool; there's very
little you can do by editing Samba's configuration file manually that you can't
do with SWAT. As a Samba-specific tool, though, SWAT isn't useful for
administering non-Samba features of a Linux system.All of the remote administration tools described
in this chapter operate using HTTP (Web) protocols. Thus, you access these
tools using a Web browser. By default, these tools don't work on a standard Web
server port, so you can use them even if the system also runs a Web server. You
must remember the port number and include it as part of the URL, as described
in the following sections for each tool.
