prerequisite is already installed.   Warning   The installation process may make your machine insecure for short periods of   time. Make sure there is a firewall between you and the Internet.   You are strongly recommended to make a backup of your system before   installing Bugzilla (and at regular intervals thereafter :-).   In outline, the installation proceeds as follows:    1. Install Perl (5.8.0 or above for non-Windows platforms; 5.8.1 for       Windows)    2. Install a Database Engine    3. Install a Webserver    4. Install Bugzilla    5. Install Perl modules    6. Install a Mail Transfer Agent (Sendmail 8.7 or above, or an MTA that is       Sendmail-compatible with at least this version)    7. Configure all of the above.     _________________________________________________________________2.1.1. Perl   Installed Version Test: perl -v   Any machine that doesn't have Perl on it is a sad machine indeed. If you   don't have it and your OS doesn't provide official packages, visit   http://www.perl.com. Although Bugzilla runs with Perl 5.8.0, it's a good   idea to be using the latest stable version.     _________________________________________________________________2.1.2. Database Engine   From Bugzilla 2.20, support is included for using both the MySQL and   PostgreSQL database servers. You only require one of these systems to make   use of Bugzilla.     _________________________________________________________________2.1.2.1. MySQL   Installed Version Test: mysql -V   If you don't have it and your OS doesn't provide official packages, visit   http://www.mysql.com. You need MySQL version 4.1.2 or higher.   Note   Many of the binary versions of MySQL store their data files in /var. On some   Unix systems, this is part of a smaller root partition, and may not have   room for your bug database. To change the data directory, you have to build   MySQL from source yourself, and set it as an option to configure.   If you install from something other than a packaging/installation system,   such as .rpm (Redhat Package), .deb (Debian Package), .exe (Windows   Executable), or .msi (Microsoft Installer), make sure the MySQL server is   started when the machine boots.     _________________________________________________________________2.1.2.2. PostgreSQL   Installed Version Test: psql -V   If you don't have it and your OS doesn't provide official packages, visit   http://www.postgresql.org/. You need PostgreSQL version 8.00.0000 or higher.   If you install from something other than a packaging/installation system,   such as .rpm (Redhat Package), .deb (Debian Package), .exe (Windows   Executable), or .msi (Microsoft Installer), make sure the PostgreSQL server   is started when the machine boots.     _________________________________________________________________2.1.3. Web Server   Installed Version Test: view the default welcome page at   http://<your-machine>/   You have freedom of choice here, pretty much any web server that is capable   of running CGI scripts will work. However, we strongly recommend using the   Apache web server (either 1.3.x or 2.x), and the installation instructions   usually assume you are using it. If you have got Bugzilla working using   another webserver, please share your experiences with us by filing a bug in   Bugzilla Documentation.   If you don't have Apache and your OS doesn't provide official packages,   visit http://httpd.apache.org/.     _________________________________________________________________2.1.4. Bugzilla   Download a Bugzilla tarball (or check it out from CVS) and place it in a   suitable directory, accessible by the default web server user (probably   "apache" or "www"). Good locations are either directly in the main web space   for your web server or perhaps in /usr/local with a symbolic link from the   web space.   Caution   The default Bugzilla distribution is NOT designed to be placed in a cgi-bin   directory. This includes any directory which is configured using the   ScriptAlias directive of Apache.   Once all the files are in a web accessible directory, make that directory   writable by your webserver's user. This is a temporary step until you run   the checksetup.pl script, which locks down your installation.     _________________________________________________________________2.1.5. Perl Modules   Bugzilla's installation process is based on a script called checksetup.pl.   The first thing it checks is whether you have appropriate versions of all   the required Perl modules. The aim of this section is to pass this check.   When it passes, proceed to Section 2.2.   At this point, you need to su to root. You should remain as root until the   end of the install. To check you have the required modules, run:   bash# ./checksetup.pl --check-modules   checksetup.pl will print out a list of the required and optional Perl   modules, together with the versions (if any) installed on your machine. The   list of required modules is reasonably long; however, you may already have   several of them installed.   There is a meta-module called Bundle::Bugzilla, which installs all the other   modules with a single command. You should use this if you are running Perl   5.6.1 or above.   The preferred way of installing Perl modules is via CPAN on Unix, or PPM on   Windows (see Section 2.5.1.2). These instructions assume you are using CPAN;   if for some reason you need to install the Perl modules manually, see   Appendix D.   bash# perl -MCPAN -e 'install "<modulename>"'   If you using Bundle::Bugzilla, invoke the magic CPAN command on it.   Otherwise, you need to work down the list of modules that checksetup.pl says   are required, in the order given, invoking the command on each.   Tip   Many people complain that Perl modules will not install for them. Most   times, the error messages complain that they are missing a file in "@INC".   Virtually every time, this error is due to permissions being set too   restrictively for you to compile Perl modules or not having the necessary   Perl development libraries installed on your system. Consult your local UNIX   systems administrator for help solving these permissions issues; if you are   the local UNIX sysadmin, please consult the newsgroup/mailing list for   further assistance or hire someone to help you out.   Note   If you are using a package-based system, and attempting to install the Perl   modules from CPAN, you may need to install the "development" packages for   MySQL and GD before attempting to install the related Perl modules. The   names of these packages will vary depending on the specific distribution you   are using, but are often called <packagename>-devel.   Here is a complete list of modules and their minimum versions. Some modules   have special installation notes, which follow.   Required Perl modules:    1. CGI 2.93    2. Date::Format (2.21)    3. DBI (1.41)    4. DBD::mysql (2.9003) if using MySQL    5. DBD::Pg (1.45) if using PostgreSQL    6. File::Spec (0.84)    7. Template (2.12)    8. Email::Send (2.00)    9. Email::MIME::Modifier (1.442)   Optional Perl modules:    1. GD (1.20) for bug charting    2. Template::Plugin::GD::Image (1.20) for Graphical Reports    3. Chart::Base (1.0) for bug charting    4. GD::Graph (any) for bug charting    5. GD::Text (any) for bug charting    6. XML::Twig (any) for bug import/export    7. MIME::Parser (5.406) for bug import/export    8. LWP::UserAgent (any) for Automatic Update Notifications    9. PatchReader (0.9.4) for pretty HTML view of patches   10. Image::Magick (any) for converting BMP image attachments to PNG   11. Net::LDAP (any) for LDAP Authentication   12. SOAP::Lite (any) for the web service interface   13. HTML::Parser (3.40) for More HTML in Product/Group Descriptions   14. HTML::Scrubber (any) for More HTML in Product/Group Descriptions   15. Email::MIME::Attachment::Stripper (any) for Inbound Email   16. Email::Reply (any) for Inbound Email   17. mod_perl2 (1.999022) for mod_perl   18. CGI (3.11) for mod_perl     _________________________________________________________________2.1.5.1. DBD::mysql   The installation process will ask you a few questions about the desired   compilation target and your MySQL installation. For most of the questions   the provided default will be adequate, but when asked if your desired target   is the MySQL or mSQL packages, you should select the MySQL-related ones.   Later you will be asked if you wish to provide backwards compatibility with   the older MySQL packages; you should answer YES to this question. The   default is NO.   A host of 'localhost' should be fine. A testing user of 'test', with a null   password, should have sufficient access to run tests on the 'test' database   which MySQL creates upon installation.     _________________________________________________________________2.1.5.2. Template Toolkit (2.12)   When you install Template Toolkit, you'll get asked various questions about   features to enable. The defaults are fine, except that it is recommended you   use the high speed XS Stash of the Template Toolkit, in order to achieve   best performance.     _________________________________________________________________2.1.5.3. GD (1.20)   The GD module is only required if you want graphical reports.   Note   The Perl GD module requires some other libraries that may or may not be   installed on your system, including libpng and libgd. The full requirements   are listed in the Perl GD module README. If compiling GD fails, it's   probably because you're missing a required library.   Tip   The version of the GD module you need is very closely tied to the libgd   version installed on your system. If you have a version 1.x of libgd the 2.x   versions of the GD module won't work for you.     _________________________________________________________________2.1.5.4. Chart::Base (1.0)   The Chart::Base module is only required if you want graphical reports. Note   that earlier versions that 0.99c used GIFs, which are no longer supported by   the latest versions of GD.     _________________________________________________________________2.1.5.5. GD::Graph (any)   The GD::Graph module is only required if you want graphical reports.     _________________________________________________________________2.1.5.6. GD::Text (any)   The GD::Text module is only required if you want graphical reports.     _________________________________________________________________2.1.5.7. XML::Twig (any)   The XML::Twig module is only required if you want to import XML bugs using   the importxml.pl script. This is required to use Bugzilla's "move bugs"   feature; you may also want to use it for migrating from another bug   database.     _________________________________________________________________2.1.5.8. SOAP::Lite (any)   Installing SOAP::Lite enables your Bugzilla installation to be accessible at   a standardized Web Service interface (SOAP/XML-RPC) by third-party   applications via HTTP(S).     _________________________________________________________________2.1.5.9. PatchReader (0.9.4)   The PatchReader module is only required if you want to use Patch Viewer, a   Bugzilla feature to show code patches in your web browser in a more readable   form. For more information on Patch Viewer, see Section 3.1.13.     _________________________________________________________________2.1.6. Mail Transfer Agent (MTA)   Bugzilla is dependent on the availability of an e-mail system for its user   authentication and for other tasks.   Note   This is not entirely true. It is possible to completely disable email   sending, or to have Bugzilla store email messages in a file instead of   sending them. However, this is mainly intended for testing, as disabling or   diverting email on a production machine would mean that users could miss   important events (such as bug changes or the creation of new accounts).   For more information, see the "mail_delivery_method" parameter in Section   3.1.   On Linux, any Sendmail-compatible MTA (Mail Transfer Agent) will suffice.   Sendmail, Postfix, qmail and Exim are examples of common MTAs. Sendmail is   the original Unix MTA, but the others are easier to configure, and therefore   many people replace Sendmail with Postfix or Exim. They are drop-in   replacements, so Bugzilla will not distinguish between them.   If you are using Sendmail, version 8.7 or higher is required. If you are   using a Sendmail-compatible MTA, it must be congruent with at least version   8.7 of Sendmail.   Consult the manual for the specific MTA you choose for detailed installation   instructions. Each of these programs will have their own configuration files   where you must configure certain parameters to ensure that the mail is   delivered properly. They are implemented as services, and you should ensure   that the MTA is in the auto-start list of services for the machine.   If a simple mail sent with the command-line 'mail' program succeeds, then   Bugzilla should also be fine.     _________________________________________________________________2.1.7. Installing Bugzilla on mod_perl