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CHROOTED_DEBIAN_5.0.txt 9.46 KiB
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#!/bin/sh
#
# rev 0.6
#
# dxr@brutalsec.net
#    01-09-2009
#
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# We can create a script for configure chroot environment but,
# YOU MUST UNDERSTAND HOW TO WORK IT for can solve possible 
# problems in the future.
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# Every service has its own chroot environment:
# BIND -> chroot
# Apache -> chroot
# Dovecot -> chroot
# Pureftpd -> Apache's chroot
# 
# Only apache and php packages aren't installed in real system,
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# only in chroot environment with symbolic links from real system.
# 
# PLEASE, CONFIGURE CHROOT ENVIROMENT IF SECURITY IS REALLY 
# IMPORTANT FOR YOU AND YOU KNOWN HOW TO WORK IT!
#
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1. BACKUP before changing anything on the system
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3. Remove possible Apache or PHP installations on real system
4. Prepare Chroot environment
5. Linking Webserver aplication from real system
6. mini_sendmail
7. Test services
8. Howto install ispconfig3
9. Migration
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1. BACKUP before changing anything on the system 
# If is not a new installation, then
BACKUP BACKUP BACKUP BACKUP BACKUP BACKUP
BACKUP BACKUP BACKUP BACKUP BACKUP BACKUP
BACKUP BACKUP BACKUP BACKUP BACKUP BACKUP
BACKUP BACKUP BACKUP BACKUP BACKUP BACKUP
/var/www/ Chroot partition (ext3)
/var/www/html/ Chroot system
/var/www/html/var/log/apache2 Log partition (ext3)
/var/www/html/var/www/html Webs partition (xfs)
/var/www/html/tmp Temporal dir (tmpfs, options: )
/dev/lvm_foobar1/chroot_lv      -> /var/www/ (ext3)
/dev/lvm_foobar2/apachelogs_lv  -> /var/www/html/var/log/apache2 (ext3)
/dev/lvm_foobar3/hosting_lv     -> /var/www/html/var/www/html (xfs)
mount /dev/lvm_foobar1/chroot_lv /var/www/
mkdir -p /var/www/html/var/log/apache2 /var/www/html/var/www/html
mount /dev/lvm_foobar2/apachelogs_lv /var/www/html/var/log/apache2
mount /dev/lvm_foobar3/hosting_lv /var/www/html/var/www/html
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3. Remove possible Apache or PHP installations on real system
# We never wont install apache or php in non-chroot system, if we have installed, we only have do a backup of configurations, uninstall, and check every symbolic link
dpkg -l|egrep --color -i 'apache|php'
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4. Prepare Chroot environment
# Install packages in real system
apt-get install debootstrap libpcre3 libaprutil1 libxml2 mime-support patch make gcc mysql-server subversion ssh openssh-server ntp ntpdate vim libdbd-mysql libdbi-perl dnsutils
# The non webserver will install outside of chroot
apt-get install postfix postfix-mysql postfix-doc mysql-client openssl getmail4 rkhunter amavisd-new spamassassin clamav clamav-daemon zoo unzip bzip2 arj nomarch lzop cabextract apt-listchanges libnet-ldap-perl libauthen-sasl-perl clamav-docs daemon libio-string-perl libio-socket-ssl-perl libnet-ident-perl zip libnet-dns-perl pure-ftpd-common pure-ftpd-mysql quota quotatool
# If you will use courier:
apt-get install courier-authdaemon courier-authlib-mysql courier-pop courier-pop-ssl courier-imap courier-imap-ssl libsasl2-2 libsasl2-modules libsasl2-modules-sql sasl2-bin libpam-mysql courier-maildrop
# If you will use dovecot:
#apt-get install dovecot-imapd dovecot-pop3d
# If you will use BIND:
apt-get install bind9 bind9utils
#
# If we want execute php from real system (crontabs for example) we need install php dependencies in real system:
# libgd2-xpm libt1-5 libmagick10 libc-client2007b libmcrypt4
# cat /var/log/ispconfig/cron.log
# ldd /usr/lib/php5/20060613/mcrypt.so
#
time debootstrap --arch=amd64 lenny /var/www/html/ ftp://ftp.fr.debian.org/debian/
echo "/proc         /var/www/html/proc               proc           defaults        0       0">>/etc/fstab
echo "devpts      /var/www/html/dev/pts            devpts         defaults        0       0">>/etc/fstab
# We must create sshusers group
echo "@sshusers       -       chroot  /var/www/html/">>/etc/security/limits.conf

chroot /var/www/html apt-get update
chroot /var/www/html apt-get install fakeroot --force-yes -y
chroot /var/www/html apt-get install locales
chroot /var/www/html dpkg-reconfigure locales

mv /usr/lib/apache2 /usr/lib/apache2_old
mv /var/log/apache2 /var/log/apache2_old
mv /var/lock/apache2 /var/lock/apache2_old
mv /var/lib/apache2 /var/lib/apache2_old
mv /usr/lib/php5 /usr/lib/php5_old
mv /etc/apache2 /etc/apache2_old
mv /etc/suphp /etc/suphp_old

chroot /var/www/html apt-get install apache2 apache2.2-common apache2-doc apache2-mpm-prefork apache2-utils libexpat1 ssl-cert libapache2-mod-php5 php5 php5-common php5-gd php5-mysql php5-imap phpmyadmin php5-cli php5-cgi libapache2-mod-fcgid apache2-suexec php-pear php-auth php5-mcrypt mcrypt php5-imagick imagemagick libapache2-mod-suphp libopenssl-ruby libapache2-mod-chroot php-apc libtimedate-perl

chroot /var/www/html /etc/init.d/apache2 stop

chroot /var/www/html a2enmod mod_chroot
chroot /var/www/html a2enmod suexec
echo "ChrootDir /var/www/html" > /var/www/html/etc/apache2/conf.d/mod_chroot.conf
sed -i -e 's#DocumentRoot /var/www/#DocumentRoot /var/www/html/#' /var/www/html/etc/apache2/sites-enabled/000-default
sed -i -e 's#x-httpd-php=php:/usr/bin/php-cgi#x-httpd-php=php:/usr/bin/php-cgi\nx-httpd-suphp=php:/usr/bin/php-cgi\nx-httpd-php=php:/usr/bin/php-cgi#' /var/www/html/etc/suphp/suphp.conf
sed -i -e 's#/var/run/apache2.pid#/var/run/apache2/apache2.pid#' /var/www/html/etc/apache2/envvars
sed -i -e 's/^"syntax on/syntax on/' /etc/vim/vimrc
sed -i -e 's/^"syntax on/syntax on/' /var/www/html/etc/vim/vimrc

# Protect apache configuration. ONLY root can read it
chown root:root /var/www/html/etc/apache2/ && chmod 700 /var/www/html/etc/apache2/
chmod 711 /var/www/html/etc/php5/


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5. # Is good idea to add Nagios alarm for check every symbolic link is correct.
ln -s /var/www/html/etc/apache2 /etc/apache2
ln -s /var/www/html/etc/suphp /etc/suphp
ln -s /var/www/html/var/run/apache2 /var/run/apache2
ln -s /var/www/html/var/run/apache2.pid /var/run/apache2.pid
ln -s /var/www/html/usr/sbin/apache2ctl /usr/sbin/apache2ctl
ln -s /var/www/html/usr/sbin/apache2 /usr/sbin/apache2
ln -s /var/www/html/usr/lib/apache2 /usr/lib/apache2
ln -s /var/www/html/usr/sbin/a2enmod /usr/sbin/a2enmod
ln -s /var/www/html/usr/sbin/a2dismod /usr/sbin/a2dismod
ln -s /var/www/html/usr/sbin/a2ensite /usr/sbin/a2ensite
ln -s /var/www/html/usr/sbin/a2dissite /usr/sbin/a2dissite
ln -s /var/www/html/var/log/apache2 /var/log/apache2
ln -s /var/www/html/var/lock/apache2 /var/lock/apache2
ln -s /var/www/html/var/lib/apache2 /var/lib/apache2
ln -s /var/www/html/usr/lib/php5 /usr/lib/php5
ln -s /var/www/html/etc/init.d/apache2 /etc/init.d/apache2
# Neccessary for to install ispconfig3 from real system:
ln -s /var/www/html/usr/bin/php5 /usr/bin/php5
ln -s /var/www/html/etc/alternatives/php /etc/alternatives/php
ln -s /var/www/html/usr/bin/php /usr/bin/php
ln -s /var/www/html/etc/php5 /etc/php5

6. # Install mini_sendmail for chroot
# We can use mini_sendmail for delivery emails directy in remote servers, but i prefer to control it in central mailserver for check spammers and limit it.
cd /tmp/
wget http://acme.com/software/mini_sendmail/mini_sendmail-1.3.6.tar.gz
tar xzf mini_sendmail-1.3.6.tar.gz
wget http://users1.leipzig.freifunk.net/%7Efirmware-build/brcm_2_4_Broadcom_default/build/openwrt_packages/mail/mini_sendmail/patches/200-fullname.patch
patch -p0 < 200-fullname.patch
cd mini_sendmail-1.3.6
make
# 2e555b2573c3ea65a467a5960f0b51f6  mini_sendmail
mv /var/www/html/usr/lib/sendmail /var/www/html/usr/lib/sendmail_old
mv /var/www/html/usr/sbin/sendmail /var/www/html/usr/sbin/sendmail_old
cp mini_sendmail /var/www/html/usr/sbin/mini_sendmail
cd /var/www/html/usr/lib/ && ln -s ../sbin/mini_sendmail sendmail
cd /var/www/html/usr/sbin && ln -s mini_sendmail sendmail
# ./mini_sendmail -h
# usage:  ./mini_sendmail [-f<name>] [-t] [-s<server>] [-p<port>] [-T<timeout>] [-v] [address ...]
#add to php.ini (/var/www/html/etc/php5/apache2/php.ini /var/www2/etc/php5/cli/php.ini /var/www2/etc/php5/cgi/php.ini line :672)
# sendmail_path = /usr/sbin/mini_sendmail -t -i -fhosting@alojamientotecnico.com -s127.0.0.1
sed -i -e 's#^;sendmail_path =$#sendmail_path = /usr/sbin/mini_sendmail -t -i -fhosting@alojamientotecnico.com -s127.0.0.1#' /var/www/html/etc/php5/apache2/php.ini /var/www/html/etc/php5/cli/php.ini /var/www/html/etc/php5/cgi/php.ini
# php -i|grep --color sendmail
#sendmail_from => no value => no value
#sendmail_path => /usr/sbin/mini_sendmail -t -i -fhosting@alojamientotecnico.com -s127.0.0.1 => /usr/sbin/mini_sendmail -t -i -fhosting@alojamientotecnico.com -s127.0.0.1
#Path to sendmail => /usr/sbin/mini_sendmail -t -i -fhosting@alojamientotecnico.com -s127.0.0.1
# Sould be good idea check /var/www/html/usr/lib/sendmail /var/www/html/usr/sbin/sendmail and /var/www/html/usr/sbin/mini_sendmail with nagios alarm ;)
svn co svn://svn.ispconfig.org/ispconfig3 svn.ispconfig.org
mv /usr/local/ispconfig /var/www/html/usr/local/
ln -s /var/www/html/usr/local/ispconfig /usr/local/ispconfig
mv /var/www/apps /var/www/html/var/www/
mv /var/www/php-fcgi-scripts /var/www/html/var/www/
mv /var/www/ispconfig /var/www/html/var/www/
ln -s /var/www/html//var/www/ispconfig /var/www/ispconfig
ln -s /var/www/html/var/www/php-fcgi-scripts /var/www/php-fcgi-scripts
ln -s /var/www/html/var/www/apps /var/www/apps
# After copy, we must clean unnecessary users and groups
cp -r /etc/{passwd,group,apt} /var/www/html/etc/
apache2ctl stop
apache2ctl start
### Migration to other server ###
Really easy:
screen
time rsync -a --progress root@host1:/var/www/ /var/www/
# Install some apache's dependencies
apt-get install debootstrap libpcre3 libaprutil1 libxml2 mime-support