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Installing A LAMP System With Fedora Core 6


This is a detailed description about how to set up a Fedora Core 6 based server that offers all services needed by ISPs and hosters: Apache web server (SSL-capable), Postfix mail server with SMTP-AUTH and TLS, DNS server, FTP server, MySQL server, POP3/IMAP, Quota, Firewall, etc. This tutorial is written for the 32-bit version of Fedora Core 6, but should apply to the 64-bit version with very little modifications as well.

I will use the following software:

  • Web Server: Apache 2.2.3
  • Database Server: MySQL 5.0.22
  • Mail Server: Postfix
  • DNS Server: BIND9 (chrooted)
  • FTP Server: proftpd
  • POP3/IMAP server: dovecot
  • Webalizer for web site statistics

In the end you should have a system that works reliably, and if you like you can install the free webhosting control panel ISPConfig (i.e., ISPConfig runs on it out of the box).

I want to say first that this is not the only way of setting up such a system. There are many ways of achieving this goal but this is the way I take. I do not issue any guarantee that this will work for you!

 

Requirements

To install such a system you will need the following:

  • Download the Fedora Core 6 DVD iso image or the 5 CD iso images from a mirror near you (the list of mirrors can be found here: http://fedora.redhat.com/download/mirrors.html), e.g. ftp://ftp.tu-chemnitz.de/pub/linux/fedora-core/6/i386/iso/FC-6-i386-DVD.iso
  • an internet connection…

 

Preliminary Note

In this tutorial I use the hostname server1.example.com with the IP address 192.168.0.100 and the gateway 192.168.0.1. These settings might differ for you, so you have to replace them where appropriate.

 

1 Install The Base System

Boot from your Fedora Core 6 DVD or CD (CD 1).

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It can take a long time to test the installation media so we skip this test here:

2

The welcome screen of the Fedora installer appears. Click on Next:

3

Choose your language next:

4

Select your keyboard layout:

5

I’m installing Fedora Core 6 on a fresh system, so I answer Yes to the question Would you like to initialize this drive, erasing ALL DATA?

6

Next we do the partitioning. Select Remove linux partitions on selected drives and create default layout. This will give you a smalll /boot partition and a large / partition which is fine for our purposes:

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We want to remove all Linux partitions (remember, this is a fresh system), so we answer Yes to the following question:

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On to the network settings. The default setting here is to configure the network interfaces with DHCP, but we are installing a server, so static IP addresses are not a bad idea… Click on the Edit button at the top right. In the window that pops up uncheck Configure using DHCP and give your network card a static IP address and netmask (in this tutorial I’m using the IP address 192.168.0.100 and netmask 255.255.255.0 for demonstration purposes) Uncheck Enable IPv6 support and enable Activate on boot:

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Set the hostname manually, e.g. server1.example.com, and enter a gateway (e.g. 192.168.0.1) and two DNS servers (e.g. 145.253.2.75 and 193.174.32.18):

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Choose your time zone:

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Give root a password:

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Now we select the software we want to install. Uncheck Office and Productivity and check Software Development and Web server instead. Do not select Fedora Extras – on my installation it caused the installer to stop! This seems to be a bug. Then check Customize now, then click on Next:

14

Now we must select the package groups we want to install. Select Editors, Text-based Internet, Development Libraries, Development Tools, DNS Name Server, FTP Server, Mail Server, MySQL Database, Server Configuration Tools, Web Server, Administration Tools, Base, Java, and System Tools and click on Next:

15

Click on Next to start the installation:

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The installer asks you if you have the required installation media at hand. Click on Continue:

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The installation begins. This will take a few minutes:

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Finally, the installation is complete, and you can remove your DVD or CD from the computer and reboot it:

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After the reboot, you will see this screen. Leave it by hitting Exit:

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Now, on to the configuration…

2 Adjust /etc/hosts

Next we edit /etc/hosts. Make it look like this:

vi /etc/hosts

# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1               localhost.localdomain localhost
192.168.0.100           server1.example.com server1

::1             server1.example.com server1 localhost.localdomain localhost

It is important that you add a line for server1.example.com and remove server1.example.com and server1 from the 127.0.0.1 line.

3 Configure Additional IP Addresses

(This section is totally optional. It just shows how to add additional IP addresses to your network interface eth0 if you need more than one IP address. If you’re fine with one IP address, you can skip this section.)

Let’s assume our network interface is eth0. Then there is a file /etc/sysconfig/network-scripts/ifcfg-eth0 which looks like this:

vi /etc/sysconfig/network-scripts/ifcfg-eth0

# Advanced Micro Devices [AMD] 79c970 [PCnet32 LANCE]
DEVICE=eth0
BOOTPROTO=static
BROADCAST=192.168.0.255
HWADDR=00:0C:29:11:31:55
IPADDR=192.168.0.100
IPV6ADDR=
IPV6PREFIX=
NETMASK=255.255.255.0
NETWORK=192.168.0.0
ONBOOT=yes

Now we want to create the virtual interface eth0:0 with the IP address 192.168.0.101. All we have to do is to create the file /etc/sysconfig/network-scripts/ifcfg-eth0:0 which looks like this (we can leave out the HWADDR line as it is the same physical network card):

vi /etc/sysconfig/network-scripts/ifcfg-eth0:0

DEVICE=eth0:0
BOOTPROTO=static
BROADCAST=192.168.0.255
IPADDR=192.168.0.101
IPV6ADDR=
IPV6PREFIX=
NETMASK=255.255.255.0
NETWORK=192.168.0.0
ONBOOT=yes

Afterwards we have to restart the network:

/etc/init.d/network restart

 

4 Configure The Firewall

I want to install ISPConfig at the end of this tutorial which comes with its own firewall. That’s why I disable the default Fedora firewall now. Of course, you are free to leave it on and configure it to your needs (but then you shouldn’t use any other firewall later on as it will most probably interfere with the Fedora firewall).

Run

system-config-securitylevel

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Select Disabled and press OK.

To check that the firewall has really been disabled, you can run

iptables -L

afterwards. The output should look like this:

[root@server1 ~]# iptables -L
Chain INPUT (policy ACCEPT)
target     prot opt source               destination

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination

 

5 Disable SELinux

SELinux is a security extension of Fedora that should provide extended security. In my opinion you don’t need it to configure a secure system, and it usually causes more problems than advantages (think of it after you have done a week of trouble-shooting because some service wasn’t working as expected, and then you find out that everything was ok, only SELinux was causing the problem). Therefore I disable it (this is a must if you want to install ISPConfig later on).

Edit /etc/selinux/config and set SELINUX=disabled:

vi /etc/selinux/config

# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#       enforcing - SELinux security policy is enforced.
#       permissive - SELinux prints warnings instead of enforcing.
#       disabled - SELinux is fully disabled.
SELINUX=disabled
# SELINUXTYPE= type of policy in use. Possible values are:
#       targeted - Only targeted network daemons are protected.
#       strict - Full SELinux protection.
SELINUXTYPE=targeted

Afterwards we must reboot the system:

shutdown -r now

 

6 Install Some Software

Now we install some software packages that are needed later on:

yum install fetchmail wget bzip2 unzip zip nmap openssl lynx fileutils ncftp gcc

7 Quota

To install quota, we run this command:

yum install quota

Edit /etc/fstab and add ,usrquota,grpquota to the / partition (/dev/VolGroup00/LogVol00):

vi /etc/fstab

/dev/VolGroup00/LogVol00 /                       ext3    defaults,usrquota,grpquota        1 1
LABEL=/boot             /boot                   ext3    defaults        1 2
devpts                  /dev/pts                devpts  gid=5,mode=620  0 0
tmpfs                   /dev/shm                tmpfs   defaults        0 0
proc                    /proc                   proc    defaults        0 0
sysfs                   /sys                    sysfs   defaults        0 0
/dev/VolGroup00/LogVol01 swap                    swap    defaults        0 0

Then run

touch /aquota.user /aquota.group
chmod 600 /aquota.*
mount -o remount /
quotacheck -avugm
quotaon -avug

to enable quota.

 

8 Install A Chrooted DNS Server (BIND9)

To install a chrooted BIND9, we do this:

yum install bind-chroot

Next, we change a few permissions and start BIND:

chmod 755 /var/named/
chmod 775 /var/named/chroot/
chmod 775 /var/named/chroot/var/
chmod 775 /var/named/chroot/var/named/
chmod 775 /var/named/chroot/var/run/
chmod 777 /var/named/chroot/var/run/named/
cd /var/named/chroot/var/named/
ln -s ../../ chroot
chkconfig –levels 235 named on
/etc/init.d/named start

BIND will run in a chroot jail under /var/named/chroot/var/named/. I will use ISPConfig to configure BIND (zones, etc.).

 

9 MySQL (5.0)

To install MySQL, we do this:

yum install mysql mysql-devel mysql-server

Then we create the system startup links for MySQL (so that MySQL starts automatically whenever the system boots) and start the MySQL server:

chkconfig –levels 235 mysqld on
/etc/init.d/mysqld start

Now check that networking is enabled. Run

netstat -tap

It should show a line like this:

tcp        0      0 *:mysql                     *:*                         LISTEN      2008/mysqld

If it does not, edit /etc/my.cnf and comment out the option skip-networking:

vi /etc/my.cnf

#skip-networking

and restart your MySQL server:

/etc/init.d/mysqld restart

Run

mysqladmin -u root password yourrootsqlpassword
mysqladmin -h server1.example.com -u root password yourrootsqlpassword

to set a password for the user root (otherwise anybody can access your MySQL database!).

10 Postfix With SMTP-AUTH And TLS

Now we install Postfix and dovecot (dovecot will be our POP3/IMAP server):

yum install cyrus-sasl cyrus-sasl-devel cyrus-sasl-gssapi cyrus-sasl-md5 cyrus-sasl-plain postfix dovecot

Now we configure SMTP-AUTH and TLS:

postconf -e ‘smtpd_sasl_local_domain =’
postconf -e ‘smtpd_sasl_auth_enable = yes’
postconf -e ‘smtpd_sasl_security_options = noanonymous’
postconf -e ‘broken_sasl_auth_clients = yes’
postconf -e ‘smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination’
postconf -e ‘inet_interfaces = all’
postconf -e ‘mynetworks = 127.0.0.0/8’

We must edit /usr/lib/sasl2/smtpd.conf so that Postfix allows PLAIN and LOGIN logins. It should look like this:

vi /usr/lib/sasl2/smtpd.conf

pwcheck_method: saslauthd
mech_list: plain login

mkdir /etc/postfix/ssl
cd /etc/postfix/ssl/
openssl genrsa -des3 -rand /etc/hosts -out smtpd.key 1024
chmod 600 smtpd.key
openssl req -new -key smtpd.key -out smtpd.csr
openssl x509 -req -days 3650 -in smtpd.csr -signkey smtpd.key -out smtpd.crt
openssl rsa -in smtpd.key -out smtpd.key.unencrypted
mv -f smtpd.key.unencrypted smtpd.key
openssl req -new -x509 -extensions v3_ca -keyout cakey.pem -out cacert.pem -days 3650

postconf -e ‘smtpd_tls_auth_only = no’
postconf -e ‘smtp_use_tls = yes’
postconf -e ‘smtpd_use_tls = yes’
postconf -e ‘smtp_tls_note_starttls_offer = yes’
postconf -e ‘smtpd_tls_key_file = /etc/postfix/ssl/smtpd.key’
postconf -e ‘smtpd_tls_cert_file = /etc/postfix/ssl/smtpd.crt’
postconf -e ‘smtpd_tls_CAfile = /etc/postfix/ssl/cacert.pem’
postconf -e ‘smtpd_tls_loglevel = 1’
postconf -e ‘smtpd_tls_received_header = yes’
postconf -e ‘smtpd_tls_session_cache_timeout = 3600s’
postconf -e ‘tls_random_source = dev:/dev/urandom’

After these configuration steps you should now have a /etc/postfix/main.cf that looks like this (I have removed all comments from it):

vi /etc/postfix/main.cf

queue_directory = /var/spool/postfix
command_directory = /usr/sbin
daemon_directory = /usr/libexec/postfix
mail_owner = postfix
inet_interfaces = all
mydestination = $myhostname, localhost.$mydomain, localhost
unknown_local_recipient_reject_code = 550
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
debug_peer_level = 2
debugger_command =
         PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin
         xxgdb $daemon_directory/$process_name $process_id & sleep 5

sendmail_path = /usr/sbin/sendmail.postfix
newaliases_path = /usr/bin/newaliases.postfix
mailq_path = /usr/bin/mailq.postfix
setgid_group = postdrop
html_directory = no
manpage_directory = /usr/share/man
sample_directory = /usr/share/doc/postfix-2.3.3/samples
readme_directory = /usr/share/doc/postfix-2.3.3/README_FILES
smtpd_sasl_local_domain =
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous
broken_sasl_auth_clients = yes
smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination
mynetworks = 127.0.0.0/8
smtpd_tls_auth_only = no
smtp_use_tls = yes
smtpd_use_tls = yes
smtp_tls_note_starttls_offer = yes
smtpd_tls_key_file = /etc/postfix/ssl/smtpd.key
smtpd_tls_cert_file = /etc/postfix/ssl/smtpd.crt
smtpd_tls_CAfile = /etc/postfix/ssl/cacert.pem
smtpd_tls_loglevel = 1
smtpd_tls_received_header = yes
smtpd_tls_session_cache_timeout = 3600s
tls_random_source = dev:/dev/urandom

Now start Postfix, saslauthd, and dovecot:

chkconfig –levels 235 sendmail off
chkconfig –levels 235 postfix on
chkconfig –levels 235 saslauthd on
chkconfig –levels 235 dovecot on
/etc/init.d/sendmail stop
/etc/init.d/postfix start
/etc/init.d/saslauthd start
/etc/init.d/dovecot start

To see if SMTP-AUTH and TLS work properly now run the following command:

telnet localhost 25

After you have established the connection to your Postfix mail server type

ehlo localhost

If you see the lines

250-STARTTLS

and

250-AUTH

everything is fine.

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Type

quit

to return to the system’s shell.

10.1 Maildir

dovecot uses Maildir format (not mbox), so if you install ISPConfig on the server, please make sure you enable Maildir under Management -> Server -> Settings -> Email. ISPConfig will then do the necessary configuration.

If you do not want to install ISPConfig, then you must configure Postfix to deliver emails to a user’s Maildir:

postconf -e ‘home_mailbox = Maildir/’
postconf -e ‘mailbox_command =’
/etc/init.d/postfix restart

 

11 Apache2 With PHP5

Now we install Apache with PHP5:

yum install php php-devel php-gd php-imap php-ldap php-mysql php-odbc php-pear php-xml php-xmlrpc curl curl-devel perl-libwww-perl ImageMagick libxml2 libxml2-devel

Then edit /etc/httpd/conf/httpd.conf:

vi /etc/httpd/conf/httpd.conf

and change DirectoryIndex to

DirectoryIndex index.html index.htm index.shtml index.cgi index.php index.php3 index.pl

Now configure your system to start Apache at boot time:

chkconfig –levels 235 httpd on

Start Apache:

/etc/init.d/httpd start

 

11.1 Disable PHP Globally

(If you do not plan to install ISPConfig on this server, please skip this section!)

In ISPConfig you will configure PHP on a per-website basis, i.e. you can specify which website can run PHP scripts and which one cannot. This can only work if PHP is disabled globally because otherwise all websites would be able to run PHP scripts, no matter what you specify in ISPConfig.

To disable PHP globally, we edit /etc/httpd/conf.d/php.conf and comment out the AddHandler and AddType lines:

vi /etc/httpd/conf.d/php.conf

#
# PHP is an HTML-embedded scripting language which attempts to make it
# easy for developers to write dynamically generated webpages.
#

LoadModule php5_module modules/libphp5.so

#
# Cause the PHP interpreter to handle files with a .php extension.
#
#AddHandler php5-script .php
#AddType text/html .php

#
# Add index.php to the list of files that will be served as directory
# indexes.
#
DirectoryIndex index.php

#
# Uncomment the following line to allow PHP to pretty-print .phps
# files as PHP source code:
#
#AddType application/x-httpd-php-source .phps

Afterwards we restart Apache:

/etc/init.d/httpd restart

12 ProFTPd

ISPConfig has better support for proftpd than vsftpd, so let’s remove vsftpd and install proftpd:

yum remove vsftpd

yum install proftpd

chkconfig –levels 235 proftpd on
/etc/init.d/proftpd start

13 Webalizer

To install webalizer, just run

yum install webalizer

 

14 Synchronize The System Clock

If you want to have the system clock synchronized with an NTP server do the following:

yum install ntp

chkconfig –levels 235 ntpd on
ntpdate 0.pool.ntp.org
/etc/init.d/ntpd start

 

15 Install Some Perl Modules

ISPConfig comes with SpamAssassin which needs a few Perl modules to work. We install the required Perl modules with a single command:

yum install perl-HTML-Parser perl-DBI perl-Net-DNS perl-Digest-SHA1

 

16 The End

The configuration of the server is now finished, and if you wish you can now install ISPConfig on it, following these instructions: http://www.ispconfig.org/manual_installation.htm

 

16.1 A Note On SuExec

If you want to run CGI scripts under suExec, you should specify /var/www as the home directory for websites created by ISPConfig as Fedora’s suExec is compiled with /var/www as Doc_Root. Run

/usr/sbin/suexec -V

and the output should look like this:

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Unless you install ISPConfig in expert mode and change the default web root (which is /var/www), you will be able to run CGI scripts under suExec with ISPConfig. The following screenshot is taken from an ISPConfig installation in expert mode. If you want to use ISPConfig, then don’t change the default web root:

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