diff --git a/docs/INSTALL_DEBIAN_4.0.txt b/docs/INSTALL_DEBIAN_4.0.txt
index 935f1976d973962f3babced4091fe0db5f1a50d8..9e9c55098a7e8bca1d2f4a3498ba6d5f8b9931fd 100644
--- a/docs/INSTALL_DEBIAN_4.0.txt
+++ b/docs/INSTALL_DEBIAN_4.0.txt
@@ -34,7 +34,7 @@ apt-get update
 
 Now Install Postfix, Courier, Saslauthd, MySQL, phpMyAdmin, ntpdate, rkhunter, binutils with the following command line (on one line!):
 
-apt-get install postfix postfix-mysql postfix-doc mysql-client mysql-server courier-authdaemon courier-authlib-mysql courier-pop courier-pop-ssl courier-imap courier-imap-ssl libsasl2 libsasl2-modules libsasl2-modules-sql sasl2-bin libpam-mysql openssl courier-maildrop getmail4 ntp ntpdate rkhunter binutils
+apt-get install postfix postfix-mysql postfix-doc mysql-client mysql-server courier-authdaemon courier-authlib-mysql courier-pop courier-pop-ssl courier-imap courier-imap-ssl libsasl2 libsasl2-modules libsasl2-modules-sql sasl2-bin libpam-mysql openssl courier-maildrop getmail4 ntp ntpdate rkhunter binutils sudo
 
 Answer the questions from the package manager as follows.
 
diff --git a/docs/INSTALL_DEBIAN_5.0_courier_mydns.txt b/docs/INSTALL_DEBIAN_5.0_courier_mydns.txt
index 97606bfc6bb2ae7312aa284836d9188486bdd0f6..b0fa9873d95adf8f8bca0f327c6e892e86b6d644 100644
--- a/docs/INSTALL_DEBIAN_5.0_courier_mydns.txt
+++ b/docs/INSTALL_DEBIAN_5.0_courier_mydns.txt
@@ -83,7 +83,7 @@ to:
 
 2) Install Amavisd-new, Spamassassin and Clamav (1 line!):
 
-apt-get -y install 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
+apt-get -y install 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 sudo
 
 # During the installation, the SSL certificates for IMAP-SSL and POP3-SSL are created with the hostname localhost. To change this to the correct hostname (server1.example.com in this tutorial), delete the certificates...
 
diff --git a/docs/INSTALL_DEBIAN_5.0_dovecot_bind.txt b/docs/INSTALL_DEBIAN_5.0_dovecot_bind.txt
index 20c6738b7b7bd2f8ba0aba8904628378a0ca1395..1dcb6ff205adc2be51fc2824c7d955ffcac945d5 100644
--- a/docs/INSTALL_DEBIAN_5.0_dovecot_bind.txt
+++ b/docs/INSTALL_DEBIAN_5.0_dovecot_bind.txt
@@ -50,7 +50,7 @@ apt-get -y install vim-nox
 
 1) Install Postfix, Dovecot, MySQL, phpMyAdmin, rkhunter, binutils with the following command line (on one line!):
 
-apt-get -y install postfix postfix-mysql postfix-doc mysql-client mysql-server openssl getmail4 rkhunter binutils dovecot-imapd dovecot-pop3d
+apt-get -y install postfix postfix-mysql postfix-doc mysql-client mysql-server openssl getmail4 rkhunter binutils dovecot-imapd dovecot-pop3d sudo
 
 # Answer the questions from the package manager as follows.
 
diff --git a/docs/INSTALL_DEBIAN_5.0_multiserver.txt b/docs/INSTALL_DEBIAN_5.0_multiserver.txt
index ff1ecf399fb0f602a9fa30aea440e9ed75c34e31..e84843627473ad7310bc86780398efe58474865a 100644
--- a/docs/INSTALL_DEBIAN_5.0_multiserver.txt
+++ b/docs/INSTALL_DEBIAN_5.0_multiserver.txt
@@ -6,7 +6,7 @@ Installing the webserver
 --------------------------------------------------
 
 apt-get install mysql-server
-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 
+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 sudo 
 
 a2enmod suexec rewrite ssl actions include
 
diff --git a/docs/INSTALL_DEBIAN_6.0_courier_mydns.txt b/docs/INSTALL_DEBIAN_6.0_courier_mydns.txt
index bdbb67d4b0fb9692726599cbc4f2bb27d7af3764..9448047ec93f8845f99397cd0dd3fe66e67d9e08 100644
--- a/docs/INSTALL_DEBIAN_6.0_courier_mydns.txt
+++ b/docs/INSTALL_DEBIAN_6.0_courier_mydns.txt
@@ -44,7 +44,7 @@ apt-get install vim-nox
 
 1) Install Postfix, Courier, Saslauthd, MySQL, phpMyAdmin, rkhunter, binutils with the following command line (on one line!):
 
-apt-get install postfix postfix-mysql postfix-doc mysql-client mysql-server courier-authdaemon courier-pop courier-pop-ssl courier-authlib-mysql courier-imap courier-imap-ssl libsasl2-2 libsasl2-modules libsasl2-modules-sql sasl2-bin libpam-mysql openssl courier-maildrop getmail4 rkhunter binutils
+apt-get install postfix postfix-mysql postfix-doc mysql-client mysql-server courier-authdaemon courier-pop courier-pop-ssl courier-authlib-mysql courier-imap courier-imap-ssl libsasl2-2 libsasl2-modules libsasl2-modules-sql sasl2-bin libpam-mysql openssl courier-maildrop getmail4 rkhunter binutils sudo
 
 
 # Answer the questions from the package manager as follows.
diff --git a/docs/INSTALL_DEBIAN_6.0_dovecot_bind.txt b/docs/INSTALL_DEBIAN_6.0_dovecot_bind.txt
index e3c62753c7a82cf6990a3899ff2221c8e21e9e94..71c138d7a593dfbb4dd12c6c829425b2ea149578 100644
--- a/docs/INSTALL_DEBIAN_6.0_dovecot_bind.txt
+++ b/docs/INSTALL_DEBIAN_6.0_dovecot_bind.txt
@@ -50,7 +50,7 @@ apt-get -y install vim-nox
 
 1) Install Postfix, Dovecot, MySQL, phpMyAdmin, rkhunter, binutils with the following command line (on one line!):
 
-apt-get -y install postfix postfix-mysql postfix-doc mysql-client mysql-server openssl getmail4 rkhunter binutils dovecot-imapd dovecot-pop3d
+apt-get -y install postfix postfix-mysql postfix-doc mysql-client mysql-server openssl getmail4 rkhunter binutils dovecot-imapd dovecot-pop3d sudo
 
 # Answer the questions from the package manager as follows.