diff --git a/Manuals/Tcpi-ug/Commons.ent b/Manuals/Tcpi-ug/Commons.ent
new file mode 100755
index 0000000..f5bcdd1
--- /dev/null
+++ b/Manuals/Tcpi-ug/Commons.ent
@@ -0,0 +1,23 @@
+
+
+
+
+
+
+&TC; Project">
+
+
+&TC; Mirrors">
+&TC; Wiki">
+
+
+
+
+The CentOS Artwork Repository">
+&TCPI; User's Guide">
diff --git a/Manuals/Tcpi-ug/Connectivity.docbook b/Manuals/Tcpi-ug/Connectivity.docbook
new file mode 100644
index 0000000..8beb345
--- /dev/null
+++ b/Manuals/Tcpi-ug/Connectivity.docbook
@@ -0,0 +1,7 @@
+
+
+ Connectivity
+
+ &connectivity-dialup;
+
+
diff --git a/Manuals/Tcpi-ug/Licenses.ent b/Manuals/Tcpi-ug/Licenses.ent
new file mode 100755
index 0000000..dd7f27a
--- /dev/null
+++ b/Manuals/Tcpi-ug/Licenses.ent
@@ -0,0 +1,2 @@
+
+
diff --git a/Manuals/Tcpi-ug/Preface.docbook b/Manuals/Tcpi-ug/Preface.docbook
new file mode 100755
index 0000000..42c8578
--- /dev/null
+++ b/Manuals/Tcpi-ug/Preface.docbook
@@ -0,0 +1,9 @@
+
+
+ Preface
+
+ &preface-overview;
+ &preface-docconvs;
+ &preface-feedback;
+
+
diff --git a/Manuals/Tcpi-ug/Preface.ent b/Manuals/Tcpi-ug/Preface.ent
new file mode 100755
index 0000000..263be1d
--- /dev/null
+++ b/Manuals/Tcpi-ug/Preface.ent
@@ -0,0 +1,4 @@
+
+
+
+
diff --git a/Manuals/Tcpi-ug/Services.ent b/Manuals/Tcpi-ug/Services.ent
new file mode 100644
index 0000000..b76c2c0
--- /dev/null
+++ b/Manuals/Tcpi-ug/Services.ent
@@ -0,0 +1,13 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/Manuals/Tcpi-ug/Services/Dns.docbook b/Manuals/Tcpi-ug/Services/Dns.docbook
new file mode 100644
index 0000000..78dd877
--- /dev/null
+++ b/Manuals/Tcpi-ug/Services/Dns.docbook
@@ -0,0 +1,11 @@
+
+
+ Domain Name Service
+
+
+ ...
+
+
+ &services-dns-overview;
+
+
diff --git a/Manuals/Tcpi-ug/Services/Dns/overview.docbook b/Manuals/Tcpi-ug/Services/Dns/overview.docbook
new file mode 100644
index 0000000..2f57c37
--- /dev/null
+++ b/Manuals/Tcpi-ug/Services/Dns/overview.docbook
@@ -0,0 +1,9 @@
+
+
+ Overview
+
+
+ ...
+
+
+
diff --git a/Manuals/Tcpi-ug/Services/Http.docbook b/Manuals/Tcpi-ug/Services/Http.docbook
new file mode 100644
index 0000000..ce85a8b
--- /dev/null
+++ b/Manuals/Tcpi-ug/Services/Http.docbook
@@ -0,0 +1,11 @@
+
+
+ Web Service
+
+
+ ...
+
+
+ &services-http-overview;
+
+
diff --git a/Manuals/Tcpi-ug/Services/Http/overview.docbook b/Manuals/Tcpi-ug/Services/Http/overview.docbook
new file mode 100644
index 0000000..00335b6
--- /dev/null
+++ b/Manuals/Tcpi-ug/Services/Http/overview.docbook
@@ -0,0 +1,9 @@
+
+
+ Overview
+
+
+ ...
+
+
+
diff --git a/Manuals/Tcpi-ug/Services/Ldap.docbook b/Manuals/Tcpi-ug/Services/Ldap.docbook
new file mode 100644
index 0000000..eba7579
--- /dev/null
+++ b/Manuals/Tcpi-ug/Services/Ldap.docbook
@@ -0,0 +1,11 @@
+
+
+ Directory Service
+
+
+ ...
+
+
+ &services-ldap-overview;
+
+
diff --git a/Manuals/Tcpi-ug/Services/Ldap/overview.docbook b/Manuals/Tcpi-ug/Services/Ldap/overview.docbook
new file mode 100644
index 0000000..f2af74e
--- /dev/null
+++ b/Manuals/Tcpi-ug/Services/Ldap/overview.docbook
@@ -0,0 +1,9 @@
+
+
+ Overview
+
+
+ ...
+
+
+
diff --git a/Manuals/Tcpi-ug/Services/Mail.docbook b/Manuals/Tcpi-ug/Services/Mail.docbook
new file mode 100644
index 0000000..04a47d2
--- /dev/null
+++ b/Manuals/Tcpi-ug/Services/Mail.docbook
@@ -0,0 +1,10 @@
+
+
+ Mail Service
+
+ &services-mail-overview;
+ &services-mail-mta;
+ &services-mail-mda;
+ &services-mail-mua;
+
+
diff --git a/Manuals/Tcpi-ug/Services/Mail/mda.docbook b/Manuals/Tcpi-ug/Services/Mail/mda.docbook
new file mode 100644
index 0000000..4b8971f
--- /dev/null
+++ b/Manuals/Tcpi-ug/Services/Mail/mda.docbook
@@ -0,0 +1,9 @@
+
+
+ Mail Delivery Agent
+
+
+ ...
+
+
+
diff --git a/Manuals/Tcpi-ug/Services/Mail/mta.docbook b/Manuals/Tcpi-ug/Services/Mail/mta.docbook
new file mode 100644
index 0000000..eeabea3
--- /dev/null
+++ b/Manuals/Tcpi-ug/Services/Mail/mta.docbook
@@ -0,0 +1,9 @@
+
+
+ Mail Transfer Agent
+
+
+ ...
+
+
+
diff --git a/Manuals/Tcpi-ug/Services/Mail/mua.docbook b/Manuals/Tcpi-ug/Services/Mail/mua.docbook
new file mode 100644
index 0000000..319d167
--- /dev/null
+++ b/Manuals/Tcpi-ug/Services/Mail/mua.docbook
@@ -0,0 +1,9 @@
+
+
+ Mail User Agent
+
+
+ ...
+
+
+
diff --git a/Manuals/Tcpi-ug/Services/Mail/overview.docbook b/Manuals/Tcpi-ug/Services/Mail/overview.docbook
new file mode 100644
index 0000000..b9693a6
--- /dev/null
+++ b/Manuals/Tcpi-ug/Services/Mail/overview.docbook
@@ -0,0 +1,58 @@
+
+
+ Overview
+
+
+ The mail service provides the software required to let you
+ send/receive mail messages to/from others. The mail service is
+ supported by three basic components: the Mail Transfer Agent
+ (MTA), the Mail Delivery Agent (MDA) and the Mail User Agent
+ (MUA). The MTA is the program your mail client sends mail
+ messages to. The MDA, on the other hand, is the program your
+ mail client reads mail message from (i.e., this is the program
+ that lets you access your mailbox). The saslauthd daemon is
+ used by the MDA to authenticate user's credentials (e.g., the
+ information required to grant access to an specific mailbox)
+ and in some cases by the MTA to authenticate users before
+ sending mail to it. The MTA will listen on all network
+ interfaces it is attached to and will receive mail sent to
+ specific users inside specific domain names.
+
+
+
+ Inside &TCD; there is support for different MTAs (e.g.,
+ Sendmail, Postfix and Exim). By default, the
+ Sendmail program is used as mail
+ transfer agent, however, we want to use Postfix for our
+ configuration. This way, to use Postfix as default mail
+ transfer agent and not Sendmail, it is required to use the
+ alternatives command. This command will
+ present you a menu to chose between available mail transfer
+ agents installed in the system, so you can choose Posfix as
+ default option. Now that you've made Postfix the default mail
+ transfer agent, you can saftly remove the sendmail package to
+ avoid unused software to remain inside the computer.
+
+
+
+ Inside &TCD; there is support for different MDA (e.g., Cyrus
+ IMPA and Dovecot). By default, the Dovecot program is used as
+ mail delivery agent (which doesn't require any intermediate
+ daemon for athentication), however, we want to use Cyrus IMAP
+ for our configuration (which does require an intermediate
+ daemon called saslauthd for authentication).
+
+
+
+ Inside &TCD; there is support for different MUA (e.g.,
+ Evolution, Thunderbird and Mutt). By default, the Evolution
+ program is used and we stay with it :).
+
+
+
+ In this chapter we describe how to configure each one of these
+ components to let you send/receive e-mails to/from your
+ friends.
+
+
+
diff --git a/Manuals/Tcpi-ug/Services/Mail/saslauthd.docbook b/Manuals/Tcpi-ug/Services/Mail/saslauthd.docbook
new file mode 100644
index 0000000..4211a1b
--- /dev/null
+++ b/Manuals/Tcpi-ug/Services/Mail/saslauthd.docbook
@@ -0,0 +1,9 @@
+
+
+ Sasl Authentication Server
+
+
+ ...
+
+
+
diff --git a/Manuals/Tcpi-ug/tcpi-ug.docbook b/Manuals/Tcpi-ug/tcpi-ug.docbook
new file mode 100755
index 0000000..a677227
--- /dev/null
+++ b/Manuals/Tcpi-ug/tcpi-ug.docbook
@@ -0,0 +1,80 @@
+
+
+
+
+
+
+
+%Commons.ent;
+%Preface.ent;
+%Connectivity.ent;
+%Services.ent;
+%Licenses.ent;
+]>
+
+
+
+
+ The CentOS Project Infrastructure
+ User's Guide
+
+
+
+ Alain
+ Reguera Delgado
+
+
+
+
+ 2011
+ &TCP;. All rights reserved.
+
+
+
+
+ Permission is granted to copy, distribute and/or modify
+ this document under the terms of the GNU Free
+ Documentation License, Version 1.2 or any later version
+ published by the Free Software Foundation; with no
+ Invariant Sections, no Front-Cover Texts, and no
+ Back-Cover Texts. A copy of the license is included in
+ .
+
+
+
+
+
+ 1.0
+ Today
+
+ Alain
+ Reguera Delgado
+
+
+
+ Under development.
+
+
+
+
+
+
+
+
+ &preface;
+
+
+ &connectivity;
+ &services;
+
+
+ &licenses;
+
+