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Published byAllen Baker Modified over 8 years ago
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Linux and Coldfusion MX Mid-Michigan Coldfusion User’s Group, Nov. 2002
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What is Linux? Linux is a UNIX style operating system Best Suited as a Server platform Very good multi-threading capabilities Many good ‘free’ servers and components available. Many different distributions available, such as S.u.S.E., Red Hat, Gentoo, Slackware.
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What Linux is not Linux is not a traditional workstation platform. Linux does not have a common support base. Linux is no more secure than Windows based machines
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Arguments Linux has as lesser TCO than Windows based machines. This can be true or false, depending on the knowledge base of your IT Staff All server related activities are better done under Linux. Like Coldfusion, Linux is not the single solution for every problem. Windows is best as a Desktop server.
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Arguments Linux can be quicker under many different circumstances. Linux typically handles high load better than Windows. Linux is cheaper, if not free. Better security Better customizability. Better compatibility.
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Linux Basics
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The Linux theory System Hardware Linux Kernel Command Shell Services X-Windows User Unlike Microsoft Windows, any of these components can be easily replaced. Window Manager
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By simply replacing your Window Manager, you can change the look of your Linux Install
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X-Windows The major “GUI” for most UNIX based systems. Very confusing to install, but one of the most useful tools. Many Distributions automatically set it up for you. Makes running Linux much easier for non- UNIX gurus.
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Window Managers Window Managers interface between the “X-Windows” system, and you. Very many available, but KDE, GNOME, Afterstep, FVM/FVM95 are the most popular. Makes Linux look pretty for you.
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File System Basics Somewhat similar to Windows, with a few exceptions There are no “drives”. Everything is based from the “Root” of your file system. UNIX and Linux is CASE SENSITIVE. “Cat”, “cat” and “CAT” are different files. Spaces, and other non-alpha-numeric characters can be used, but are VERY hard to work with.
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File System Basics /etc/ = Configuration files /home/ = Home directories for most users /opt/ = where large commercial applications are installed (Coldfusion) /usr/ = where smaller applications are installed / (root) /etc /home /opt /opt/coldfusion /usr /usr/local /usr/local/httpd/htdocs/
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File System Basics All files are referred from the root : /usr/local/httpd/htdocs/index.cfm / (root) /etc /home /opt /opt/coldfusion /usr /usr/local /usr/local/httpd/htdocs/ Files do not necessarily have to have a three letter extension. /home/quetwo/myfile_one /home/quetwo/myfile_two.tar.gz /home/quetwo/myfile.stable.out
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Users Under Linux, there is only ONE administrator. All others have minimal access. User : root (a.k.a. su, super user) By default, root can only login using the console (sitting at the physical computer). FTP, Telnet, SSH, etc. are usually disabled for this user.
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Users When you install Linux, create a secondary user. Don’t always login as root. BIG security risk. Only login as root to install applications, change settings, or to create additional users. Root has access to blow away your entire system, including other partitions, all in one command!
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Permissions Unlike Windows, users have almost no permissions to the system. Users, by default have full access to their home directory (/home/username), read access to the binary (application) directories, and no access to other user’s directories root is the only user to have access to the full file system.
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Running Linux Free, but I would suggest buying a boxed set Manuals, and everything already on CDROM You will probably want a secondary machine to play around with. Any Pentium based machine will suffice 2GB of HD Space, 64MB RAM CDROM
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Running Linux VMware Workstation Run Linux within Windows NT, 2000, XP Virtual Machine – Let Linux play within it’s own sandbox Costly, but good to stage deployment of software or applications – cheaper than a new computer
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