# HG changeset patch
# User Michael Schloh von Bennewitz <michael@schloh.com>
# Date 1310227208 -7200
# Node ID a172bf9d21f889a9edf0ed3b2aca9acaff3095ec

Import initial draft of concepts for the LDAP integration lecture.

diff -r 000000000000 -r a172bf9d21f8 ldapint/whatisldap.txt
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ldapint/whatisldap.txt	Sat Jul 09 18:00:08 2011 +0200
@@ -0,0 +1,118 @@
+LDAP integration, 15 minute presentation
+Lightweight Directory Access Protocol
+Audience: Network and software engineers
+
+Author and speaker
+------------------
+Michael Schloh von Bennewitz, Europalab Networks
+web: http://michael.schloh.com/
+email: michael@schloh.com
+isdn: +49(89)44239885
+voip: sips:michael@schloh.com
+
+What is LDAP?
+-------------
+IP technology providing fast directory read access.    +-------------------+
+Part of most (if not all) Unix and Linux distros.      | ISO Model   LDAP  |
+Good integration in Blackberry, Android, and IPhone.   |   Transport TCP   |
+Standardized by the IETF in RFC 4510 and many others.  +-------------------+
+
+Typical use cases
+-----------------
+1) Telephone directory.
+2) Corporate address book.
+3) Employee ID card directory.
+4) Password directory.
+5) Recipe collection?
+X) Utility crosses boundary of SQL technology.
+
+Comparing LDAP with SQL
+-----------------------
+LPAP is a protocol, SQL is a language.
+Tuned for reading, tuned for balanced use.
+SQL provides transactions, consistency, LDAP doesn't.
+
+LDAP and SQL round trip comparison (UML sequence diagrams)
+----------------------------------------------------------
+LDAP client binds to a LDAP server and stores the connection.
+client uses the LDAP connection to send queries to the server.
+The server searches a LDAP directory for the specified attributes.
+The server replies with the matched attributes along with values.
+
+LDAP Mainstream acceptance
+--------------------------
+Most are enterprise use cases
+1) Suse makes widespred use of LDAP
+2) MS Active Directory based on LDAP
+3) Apple ease of use LDAP in Addressbook
+4) Email address autocompletion
+     Kontact, Evolution, Thunderbird, iMail, Outlook
+5) IP hardphones and softphones (Nokia is missing)
+     Snom, Polycom, Cisco, Ekiga, SFLPhone
+
+LDAP Popular implementations
+----------------------------
+OpenLDAP (GPLv2)
+Mozilla C/Java
+Alcatel-Lucent
+Alot of others
+
+------------------------ Technical chapter ------------------------
+
+OpenLDAP Helloworld
+-------------------
+int main(int argc, char *argv[]) {
+    ldap_initialize(&ld, "ldaps://name.host.com:636/");
+    ldap_simple_bind_s(ld, "uid=username,ou=people,dc=host,dc=com", "mypasswordhere");
+    ldap_search_s(ld, "dc=intern,dc=host,dc=com", LDAP_SCOPE_SUBTREE, "(sn=Chambe-Eng)", NULL, 0, &result);
+    dn = ldap_get_dn(ld, ldap_first_entry(ld, result));
+    printf("dn: %s\n", dn);
+    ldap_memfree(dn);
+    ldap_msgfree(result);
+    ldap_unbind(ld);
+}
+
+$ cc -c helloldap.c && cc helloldap.o -lldap -llber && ./a.out
+dn: uid=Chambe-Eng,ou=scandinavia,ou=people,dc=intern,dc=host,dc=com
+
+Typical LDAP attrbutes in an addressbook
+----------------------------------------
+  Dn (Distinguished name)
+  Cn (common name)
+  Uid
+  Givenname
+  Surname
+  Displayname
+  ...
+
+LDAP Glossary
+-------------
+Directory ~= SQL database
+Attribute ~= SQL column
+Value ~= SQL value
+Distinguished name (DN) = The fixed primary key of any directory entry
+Root distinguished name (Root DN)
+Schema
+BER = Basic Encoding Rules (like ASN.1)
+Ldap.conf (Client part)
+Slapd.conf (Server part)
+SLAPd (OpenLDAP Server)
+
+Links
+-----
+This presentation
+Wikipedia
+IETF RFCs
+OpenLDAP
+
+------------------------ Nokia Qt specific ------------------------
+
+Assumptions
+-----------
+Class called QLdap (QSql), QLdapconnection (QSqlDatabase), ...
+
+Problems
+--------
+In which Qt<Libname> module do the LDAP classes belong?
+  1) In their own module.
+  2) In libQtSQL.