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Yes. Linux uses XFree86 (the current version is 3.3.2, which is based on X11R6). You need to have a video card which is supported by XFree86. See the Linux XFree86 HOWTO for more details.
Most Linux distributions nowadays come with an X installation.
However, you can install or upgrade your own, from /pub/Linux/X11/Xfree86-* on sunsite.unc.edu and its mirror sites. Read the XFree86 HOWTO for installation instructions.
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See the Linux XFree86 HOWTO.
You'll need to put together your own XF86Config file, because it depends on the exact combination of video card and monitor you have. It's not that hard--read the instructions that came with XFree86, in /usr/X11R6/lib/X11/etc. The file you probably need to look at most is README.Config.
You should not use the sample XF86Config.eg file which is included with newer versions of XFree86 verbatim, because the wrong video clock settings can damage your monitor.
For a quick start, you may run the program xf86config. Note that ConfigXF86 is obsolete, and you shouldn't use it.
Please don't post to comp.os.linux.x asking for an XF86Config, and please don't answer such requests.
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The xterm that comes with XFree86 2.1 and earlier doesn't correctly understand the format that Linux uses for the /var/adm/utmp file, where the system records who is logged in. It therefore doesn't set all the information correctly.
The Xterms in XFree86 3.1 and later versions fix this problem.
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Read the XFree86 HOWTO--note the question and answer section.
Try reading comp.windows.x.i386unix--specifically read the the FAQ for that group.
Please don't post X Windows or XFree86 related questions to comp.os.linux.x unless they are Linux-specific.
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