Added alternative implementations of LDAP section

openldap.md

@@ -2,7 +2,7 @@
 title: OpenLDAP
 author: Akshay Pushparaj
 theme: Berlin
-#mainfont: Iosevka Regular
+mainfont: Iosevka
 fontsize: 8pt
 ---
 # Introduction to LDAP
@@ -21,7 +21,8 @@ LDAP information model is based on entries. An entry is a collection of attribut
 ## How is the information arranged? 
 Directory entries are arranged in a hierarchical tree-like structure.
 
-![LDAP Tree](./ldap_tree.png){#id .class width=500 height=500 display=block}
+![LDAP Tree](./image/ldap_tree.png){#id .class width=200 height=200 display=block}
+
 
 ## Differences between traditional databases
 - LDAP is a open standard protocol. 
@@ -55,16 +56,22 @@ Some of the usecases of LDAP are:
 - OpenLDAP is highly flexible. Has code-reliant functionality which doesn’t lock users into predetermined workflows; rather, we can manipulate the software to our exact needs.
 
 ## Cons
-- Directory configuration and management are manual.
+- Directory configuration and management are manual. Hence it is more time consuming and has a higher learning curve.
+- OpenLDAP is a command-line application. However there are multiple LDAP browsers available which can be used in case a UI is required. Few of them listed below:
+	- [web2ldap](https://www.web2ldap.de/web2ldap.html)
+  - [Apache Directory](https://directory.apache.org/)
 
-# Alternative LDAP implementation
 
-## 389 DS and FreeIPA
+# Other free software LDAP implementations
+## 389 DS
 - Like OpenLDAP, 389 DS or 389 Directory Server is a LDAP implementation by RedHat  as part of the community-supported Fedora project.
 - 389 DS have a graphical interface that can be used for administration.
 
-![389 DS management console](./389ds.png){#id .class display=block}
+##
+![389 DS management console](./image/389ds.png){#id .class display=block}
+
 
+## FreeIPA
 - FreeIPA is an identity management system created by RedHat. The aim with FreeIPA is to provide a centrally managed Identity, Policy and Audit(IPA)  system.
   - Identity management ensure the right users have appropriate access to resources.
   - Security policies are a set of requirements to maintain a safe and secure computing environment.
@@ -74,7 +81,13 @@ Some of the usecases of LDAP are:
 - The advantage of using FreeIPA is that it is easy to setup. Since everything is taken care by FreeIPA for us it has less flexibilty comapred to OpenLDAP. 
 - FreeIPA has a Web UI for administration. 
 
-## Samba
+##
+![Web UI](./image/freeipa.png)
 
+## Samba
+-  Samba runs on Unix platforms, but speaks to Windows clients like a native. It allows a Unix system to move into a Windows "Network Neighborhood" without causing a stir. Windows users can happily access file and print services without knowing or caring that those services are being offered by a Unix host.
+- Samba is an open source CIFS implementation. CIFS or Common Internet File System is a protocol suite used to share files remotely via IP. 
+- Samba allows for a Linux server to act as a Domain Controller. By doing so, user credentials on the Windows domain can be used instead of needing to be recreated and then manually kept in sync on the Linux server.
+- A domain controller is a server that manages network and identity security, effectively acting as the gatekeeper for user authentication and authorization to IT resources within the domain.