Linux - Microsoft Active Directory Integration

Linux - Microsoft Active Directory Integration -- Postfix Mail Gateway to Exchange

Microsoft Exchange provides a mail gateway -- the Edge Transport Server -- that provides e-mail filtering and security capabilities.  However, Postfix on Linux provides far more mail security and message filtering options.  This article explains how to configure Postfix to authenticate to Active Directory over LDAP, install greylisting to filter spam and provide ClamSMTP virus control.

Linux - Microsoft Exchange Integration -- Apache Reverse Proxy to Exchange Client Access Server

The Microsoft Exchange Client Access Server (CAS) provides Active-Directory-integrated remote services such as Outlook Web Access, Exchange Web Services, ActiveSync and Outlook AnyWhere.  However, this tight integration with Active Directory presents security concerns.  This article explains how to install and configure the Apache web server to act as a Reverse Proxy server in the DMZ that more securely accesses CAS in the private network.

Linux - Microsoft Active Directory Integrations -- Seamlessly-Authenticated Squid Proxy Server

Microsoft provides a variety of proxy server offerings that are tightly-integrated with Active Directory.  Squid proxy server on Linux is a high-performance, open source alternative that requires less expensive hardware.  The default installation is not well integrated with Active Directory, however it may be configured to seamlessly authenticate clients using Active Directory Users and Groups.

Linux - Microsoft Active Directory Integration -- An Active Directory-Enblaed Linux Web and E-Mail Security Appliance Using IPTables, Apache, Squid and Postfix

 This article describes the above three Active Directory-integrated security services installed on a single server protected with an IPTables host firewall configured with FWBuilder.

Linux - Microsoft Active Directory Integration -- Using Linux Realm Daemon to Authenticate to Active Directory

Configuring a Linux Workstation to authenticate to Active Directory is no longer difficult with the Realm Daemon.  This article provides a detailed walk-through of the five to seven minute process.