RHEL4InstallGuide

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Unofficial Installation Guide

This is an unofficial installation guide. It may be outdated or apply only to very specific configurations and versions. The official and maintained installation steps for RT are in the README and UPGRADING documents included in the official .tar.gz packages.




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Red Hat Enterprise Linux 4 Update2 + RT 3.6.3 + FastCGI 2.4.2 Install Guide

(based on procedure posted by William Harrison to rt-users@lists.bestpractical.com)

-- General note: All commands should be carried out as the root user unless otherwise stated.

1) Perform a standard install of RHEL, then upgrade / up2date / whatever to get latest versions of installed packages. Verify you have the following packages to satisfy the installation requirements of mod_fastcgi. If you do not you may receive the following error:

Subscribing to the RHEL AS (v. 4 for x86) Fastrack, Red Hat Web Application Stack 1.0 Beta (for AS v. 4 x86), and RHEL AS (v. 4 for x86) Extras channels solves many dependencies off the bat. It also keeps most your libraries patched via up2date. 

make: *** No rule to make target `/etc/httpd/build/special.mk'.  Stop.]
 
 httpd-devel
 apr-devel
 mysql
 mysqlclient10
 mysql-server
 mysql-devel
 gcc
 sendmail-cf
 
 ### The following packages resolve some CPAN module dependencies (specifically, the GD module):
 ### Note: RHEL ships with mod_perl 1.99 and is not compatible with RT (we will instead use FastCGI), but mod_perl is required to
 ### satisfy certain perl module dependencies.
 
 mod_perl
 freetype-devel
 gd-devel
 libjpeg-devel
 libpng-devel
 xorg-x11-devel
 
 ### I found the CPAN steps below went a little more smoothly with
 ### all perl packages installed (yes, it's overkill).
 
 perl-*

1a) See Step 6 First: /opt/rt3/bin/mason_handler.fcgi does not exist yet

2) Install FastCGI... (required, since RT only works with mod_perl2, not mod_perl 1.99 that RHEL4 ships with)

Note: mod_perl 2.x is available from the Red Hat Web Application Stack 1.0 Beta (for AS v. 4 x86) channel. You can subscribe your system(s) to it through RHN's interface. 

wget http://www.fastcgi.com/dist/mod_fastcgi-2.4.2.tar.gz
 tar -zxvf mod_fastcgi-2.4.2.tar.gz
 cd mod_fastcgi-2.4.2
 cp Makefile.AP2 Makefile
 vi Makefile
 
 ### Modify Makefile for location of apache 2 installation:
   top_dir      = /etc/httpd
 
 make
 make install
 
 ### Create file FastCGI.conf
   touch /etc/httpd/conf.d/FastCGI.conf
   vi /etc/httpd/conf.d/FastCGI.conf
 
 ###Add the following lines to load FastCGI module.(FastCGI.conf):
   LoadModule fastcgi_module modules/mod_fastcgi.so
   FastCgiIpcDir /tmp
   FastCgiServer /opt/rt3/bin/mason_handler.fcgi -idle-timeout 120 -processes 8
   FastCgiConfig -restart
 
 ### FastCGI wants to have a place to put its logs, and permission to do so:
   mkdir -p /etc/httpd/logs/fastcgi/dynamic
   chown -R apache:apache /etc/httpd/logs/fastcgi
   service httpd restart
 
 ### Check Apache logs to make sure fastcgi started
 ### Should see one line indicating a [notice] and the pid of FastCGI
 ### [Mon Mar 14 9:16:57 2005] [notice] FastCGI: process manager initialized (pid 3478)
   tail -n 50 /var/log/httpd/error_log

3) Turn on MySQL server, Apache server, and optionally set MySQL root password. 

chkconfig httpd on
chkconfig mysql on
service mysql start
mysqladmin -u root password newpass

3.5) Install ncftpget 

### Note the path for ncftpget "./ncftp-3.2.0/bin/ncftpget", which will be needed next.
 wget -c ftp://ftp.ncftp.com/ncftp/binaries/ncftp-3.2.0-linux-x86-glibc2.3-export.tar.gz
 tar -xvzf ncftp-3.2.0-linux-x86-glibc2.3-export.tar.gz
 
 cd ncftp-3.2.0
 make
 make install

4) RT Pre-Install : Security 

Note: This requires a reboot, or a more extensive bouncing of various daemons.
 The easiest thing to do is make the following change, and then reboot.
 For more info on switching selinux policy, please see http://fedora.redhat.com/docs/selinux-faq-fc3/index.html#id2825232
 ### RT requires its own group, so let's add it now lest we forget:
   groupadd rt

If you want an installation of standard security, do the following, else see SELinux 

### RT gets initiated by apache, so add apache to the rt group:
   vi /etc/group
   ### Change the line:
   ### rt:x:501:
   ### to read:
   ### rt:x:501:apache

If you want an installation of standard security, do the following, else see SELinux 

### Disable selinux (or make sure it is disabled):
    vi /etc/selinux/config
    ### Change the line:
    ### SELINUX=enforcing
    ### or
    ### SELINUX=permissive
    ### to read:
    ### SELINUX=disabled
 
 ### Change permissions on /etc/httpd/logs
    chmod -Rf 755 /etc/httpd/logs

5) RT Pre-Install : Perl Modules 

###Download and install the following modules:
 ### http://dag.wieers.com/rpm/packages.php
 
 perl-Apache-Session-1.80-1.2.el4.rf.noarch.rpm
 perl-Class-Container-0.12-1.2.el4.rf.noarch.rpm
 perl-Class-Data-Inheritable-0.04-1.2.el4.rf.noarch.rpm
 perl-Crypt-DES-2.03-3.2.el4.rf.i386.rpm
 perl-Devel-StackTrace-1.12-1.2.el4.rf.noarch.rpm
 perl-Exception-Class-1.22-1.2.el4.rf.noarch.rpm
 perl-GD-2.30-2.2.el4.rf.i386.rpm
 perl-GD-Graph-1.43-1.2.el4.rf.noarch.rpm
 perl-GD-Text-Util-0.86-1.2.el4.rf.noarch.rpm
 perl-Hook-LexWrap-0.20-1.el4.rf.noarch.rpm
 perl-HTML-Mason-1.32-1.2.el4.rf.noarch.rpm
 perl-HTTP-Server-Simple-0.16-1.2.el4.rf.noarch.rpm
 perl-HTTP-Server-Simple-Mason-0.09-1.el4.rf.noarch.rpm
 perl-IO-Socket-INET6-2.51-1.2.el4.rf.noarch.rpm
 perl-Net-SNMP-5.0.1-1.2.el4.rf.noarch.rpm
 perl-Params-Validate-0.78-1.2.el4.rf.i386.rpm
 perl-Socket6-0.18-1.2.el4.rf.i386.rpm
 
 ###Set up CPAN initially, walk through its setup (if you have not already done so), and upgrade CPAN.
  perl -MCPAN -e shell
 
 ### From within CPAN..
  install Bundle::CPAN

6) Configure RT... 

wget http://download.bestpractical.com/pub/rt/release/rt.tar.gz
 gunzip rt.tar.gz
 tar -xvf rt.tar
 cd rt-3.6.3/
 
 ### Set up the makefile for us with the proper settings:
   ./configure --with-web-user=apache --with-web-group=apache --with-fastcgi --with-mysql
 
 ### MIME::Entity won't install without MIME::Base64, so install that first:
   perl -MCPAN -e 'install MIME::Base64'
 
 ### Now install IO:File (required for passing tests during MIM::Entity build):
   perl -MCPAN -e 'install IO::File'
 
 ### Now install MIME::Entity:
   perl -MCPAN -e 'install MIME::Entity'
 
 ### Now install Log::Dispatch:
   perl -MCPAN -e 'install Log::Dispatch'
 
 ### Module::Build can have problems with argument length, use this older version to fix it:
 ### http://www.city-fan.org/ftp/contrib/perl-modules/RPMS.rhel4/perl-Module-Build-0.2612-1.rhel4.noarch.rpm
 ### See here for more details: http://www.mail-archive.com/fedora-perl-devel-list@redhat.com/msg01000.html
 
 ### If you plan on making the request tracker install use ssl (as in https) then you will also need to install Crypt::SSLeay
   perl -MCPAN -e 'install Crypt::SSLeay'
 
 ### Finally Install the RT Bundle
   perl -MCPAN -e 'install Bundle::RT'
 
 ### Show us what else is missing:
   perl sbin/rt-test-dependencies --with-mysql --with-fastcgi --verbose | grep MISSING
 
 ### Try to install what's missing for us through CPAN automatically. If automatic install fails then
 ### install whatever is missing manually via CPAN.
   perl sbin/rt-test-dependencies --with-mysql --with-fastcgi --install
 
 ### Test again and make sure nothing is MISSING:
   perl sbin/rt-test-dependencies --with-mysql --with-fastcgi --verbose | grep MISSING
 
 ### Assuming everything is present and it's a go, install...
   make install

7) Edit RT config file 

vi /opt/rt3/etc/RT_SiteConfig.pm
 
 ### configure RT web paths:
   Set($WebBaseURL , "http://your.host.name:80");
   Set($WebPath , "");
   Set($rtname, "mysite.com");
 
 ### Change $DatabasePassword to something other than the default "rt_pass"
 ### you don't need to create this user yourself RT will create it while next step
   # Set($DatabaseUser , "rt_user"); # Only uncomment if you change from the default "rt_user";
   Set($DatabasePassword , "secrete_password_rt_uses_to_connect_db");

8) Initialize the database: 

### Initialize the database:
   make initialize-database

9) Edit your Apache config file as well: 

edit /etc/httpd/conf/httpd.conf
 ###  NameVirtualHost *:80
 ###  <VirtualHost *:80>
 ###    ServerAdmin root
 ###    ServerName your.host.name
 ###    DocumentRoot /opt/rt3/share/html/
 ###    AddDefaultCharset UTF-8
 ###    # Adding the following for RT (the ticket tracker)
 ###    AddHandler fastcgi-script .fcgi
 ###    <Directory "/opt/rt3/share/html">
 ###      Options FollowSymLinks ExecCGI
 ###      AllowOverride None
 ###    </Directory>
 ###    # Pass through requests to for noauth
 ###    Alias /NoAuth/images /opt/rt3/share/html/NoAuth/images
 ###    ScriptAlias / /opt/rt3/bin/mason_handler.fcgi/
 ###  </VirtualHost>
 ###  FastCgiIpcDir /tmp
 ###  FastCgiServer /opt/rt3/bin/mason_handler.fcgi -idle-timeout 120 -processes 4

10) Restart Apache: 

service httpd restart
 
 Check /var/log/httpd/error_log for any errors.  If you see a line similar to
 ### Can't locate FCGI.pm in @INC (@INC contains: ...
 
 perl -MCPAN -e 'install FCGI'
 service httpd restart
 
 Confirm above error message is not present and there are no other errors.

11) Attempt to log into RT at http://your.host.name/ <- don't forget the trailing / to point to the rt subdirectory, otherwise this will not work 

default user = root
 default pass = password
 ##Be sure to change these before using thing in a production environment##

12) Symlink rt-mailgate to /etc/smrsh, and create aliases to use RT: 

ln -s /opt/rt3/bin/rt-mailgate /etc/smrsh/rt-mailgate
edit  /etc/aliases:
   ### Add lines:
   ### rt: "|/etc/smrsh/rt-mailgate --queue general --action correspond --url http://your.host.name/"
   ### rt-comment: "|/etc/smrsh/rt-mailgate --queue general --action comment --url http://your.host.name/"

13) Configure Sendmail: 

edit /etc/mail/sendmail.mc:
   ### Change the line:
   ### DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl
   ### to read:
   ### dnl DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')
rebuild your sendmail.cf:
   m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf
add rt server alias to /etc/mail/local-host-names:
   ### Add line:
   ### rt.example.com
restart sendmail:
   service sendmail restart

14) Use the RT Web interface: 

set up users
grant user rights
create queues
lather, rinse repeat...

15) Look at ItsFinallyInstalledNowWhat for hints on setting up RT to accept E-mail ticket requests

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