Category: Ldap

Understanding UDP 389 portqry error and how to solve this issue:



When Kerberos was chosen to be AD’s authentication protocol in the mid- to late-1990s, the World Wide Web was a shadow of what the Internet offers today. Although the Kerberos ticket contained an encrypted password hash that could be attacked, there wasn’t any substantial requirement to provide support outside the highly protected corporate firewall.

The rise of cloud services is changing many aspects of our lives, and these services don’t support external authentication via Kerberos because of that password vulnerability. If a web service uses standards, it handles claims-based authentication using SAML 2.0 or, increasingly, OAuth 2.0 and OpenID Connect. Microsoft’s own Azure Active Directory doesn’t use Kerberos; it supports SAML and OAuth 2.0 as its authentication protocols.


Wikipedia Article: OAuth

OAuth in details

OAuth is an authorization method to provide access to resources over the HTTP protocol.


OAuth2 can be used for authorization of various apps (server/browser/mobile)and desktop applications or manual user access.

The general way it works is allowing an application to have an access token (which represents a user’s permission for the client to access their data) which it can use to authenticate a request to an API endpoint.

Oauth 2 flow

A sample OAuth flow: Facebook

OAuth versions

There are two versions of OAuth authorization OAuth 1 (using HMAC-SHA signature strings) and OAuth 2 (using tokens over HTTPS).

Note: SoapUI currently only offers Oauth2 authorization.

OAuth 2 terms

Conceptually, OAuth2 haas a few components interacting: The resource server (the API server) contains the resources to be accessed. Access tokens are provided by the authorization server (which can be the same as the API server). The tokens are provided by the resource owner (the user) when accessing the resources. Similarly, an application using the credentials, and the API is called client.

End Points

The token Endpoint is used by clients to get an access token (and optionally refresh token) from the authorization server.

Note: When using implicit grant, this endpoint is not used. Instead the access token is sent from the authorization endpoint directly.


The two token types involved in OAuth 2 authentication are Access Token and Refresh Token.

Access Token

The access token is used to for authentication and authorization to get access to the resources from the resource server.

Refresh Token

The refresh token normally is sent together with the access token.

The refresh token is used to get a new access token, when the old one expires. Instead of the normal grant type, the client provides the refresh token, and receives a new access token.

Using refresh tokens allows for having a short expiration time for access token to the resource server, and a long expiration time for access to the authorization server.

Token Types

Access tokens have a type, which defines how they are constructed.

Bearer Tokens

The bearer tokens use HTTPS security, and the request is not signed or encrypted. Possession of the bearer token is considered authentication.

MAC Tokens

More secure than bearer tokens, MAC tokens are similar to signatures, in that they provide a way to have (partial) cryptographic verification of the request.


Methods to get access tokens from the authorization server are called grants. The same method used to request a token is also used by the resource server to validate a token.

The four basic grant types are Authorization Code, Implicit, Resource Owner Credentials and Client Credentials.

Note: SoapUI currently only offers the grant types Code Grant and Implicit.

Authorization Code

With authorization_code grant, the resource owner allows access. An authorization code is then sent to the client via browser redirect, and the authorization code is used in the background to get an access token. Optionally, a refresh token is also sent.


The implicit grant is similar to authorization code, but instead of using the code as an intermediary, the access token is sent directly through a browser redirect.

Not yet in SoapUI Resource Owner Credentials

The password/Resource Owner Credentials grant takes the uses the resource owner password to obtain the access token. Optionally, a refresh token is also sent. The password is then discarded.

Not yet in SoapUI Client Credentials

In client_credentials grant mode, the client’s credentials are used instead of the resource owner’s. The access token is associated either with the client itself, or delegated authorization from a resource owner.

Grant Type Extensions

OAuth has a mechanism for extending grant types as a bridge to other authorization frameworks, or for specialized clients.

Extension grants are used by clients through an absolute URI together with a grant_type parameter and by adding any additional parameters necessary to the end point.


In OAuth 2, the scope is a way to restrict access to specified areas. A common way of handling it is with a comma-separated or space-delimited list of strings, where each string indicates an areas of access.





CentOS or RH (with sssd) with AD but no kerberos! (cert only):


Reference guide:

In addition to redhat guide, there are tones of interesting links:

Troubleshooting SSSD:

SSSD for SuSE (sles):


Free tools for Windows sysadmins:

– Powershell windows forensics:  and and

– Memory forensics:

– Crowdstrike free tools:

– McAfee foundstone free tools:

– Trousse de secours Windows sur cle USB:

– Net tools and forensic tools for windows :
– System and performance: CCleaner,recuva,defragler,speccy from pirisoft:
– Windows 8 or Server  2012 start menu (GUI):
– New Microsoft network monitor called MESSAGE ANALYZER (GUI):
– ESET Sysinspector: (is a convenient utility for the tool box of every IT expert and first responder)
– Qualys browsercheck:  (check internet browser vulnerabilities)
– Secunia personal inspector: (scanner application’s vulnerabilities)
– TrueCrypt. Is disk encryption software:
– Keepass. To remember passwords:
– Putty, FileZilla, WinSCP, XMing (free Xserver), MobaXterm (free Xserver and SSH): Unix tools for Windows
– Remote Desktop managers: mRemoteNG, Remote Desktop manager
– Ophcrack is a free Windows password cracker based on rainbow tables:
– Anti-malware free Malwarebytes (GUI):
– Inventory tool that performs hardware scanning, software scanning, and Active Directory (AD) reporting (GUI):
– DNSdataview (GUI):
– WinDirStat (GUI):
– Archiving and compression 7-zip  (GUI):
– Compare content files: ExamDiff  (GUI):
– File Recovery (GUI): PC inspector File recovery   and    easeUS data recovery
– System Information for Windows and benchmarks (Gathers detailed information about a computer’s system properties, settings, and displays, benchmarks):
        – SIW  (GUI)
        – AIDA  (GUI)
        – Everest  (GUI):
– HDTune: GUI – simple disk IO utility
– Unlock DLL: GUI to unlock DLLs in use (c.f unlocker utility on internet)
– AD queries builder with powershell and powershell editor  (GUI):
– AD reports and ldap builder (GUI):
– AD change reporter (GUI):
– AD object restore wizard (GUI):
– Inactive users tracker (GUI):
– Netmork Monitoring (GUI):, or quest scriptlogic free utility called sl360
– Disk space monitor (GUI):
– Bulk password reset (GUI):
– Windows service monitor (GUI):
– Vmware change reporter (GUI):
– File server change reporter (GUI):
– Password expiration notifier (GUI):
– USB blocker (GUI):
– Free disk analysis tool (Gui):  ; Find out how much of your storage capacity is being wasted on unwanted files
– Netbook Hardware control (GUI):
– Sysinternal Tools (CMD/GUI):
 – (CMD) (CMD/GUI)
– OpenSSH (Gui, Cmd: )
– OpenVPN (GUI, Cmd: )
– Microsoft Security Essentials: Antivirus/Anti-malware free:
– Microsoft Resource Kits
– ClamAV: Antivirus
– AVast: Antivirus
– Free download manager: IE download manager
– Daemontools or Virtual Clone Drive (GUI)
– Tree size free: Directory or disk usage and statistics (GUI):
– CDex: transform CD in MP3… (GUI)
– Desktop Restore. Records the position of desktop icons and restores desktop layouts.
– InfraRecorder. Burns ISO images and creates data and audio CDs and DVDs:
– Notepad++. Is a text and code editor.
– NTFS Undelete. Recovers deleted files that are no longer in the recycle bin.
– Paint.NET. Manipulates images.
– PING. Makes a sector-based image copy of a disk partition.
-Windows Preinstallation Environment (WinPE). Lets you make a Windows command-line boot recovery DVD.
– XML Notepad. Is a specialized XML editor.
– ZoomIt. Magnifies portions of a screen and lets you draw on and annotate the screen (c.f
– BareTail. Monitors log files in real time.
– Wireshark. Is a protocol analyzer:
– FileZilla. Is a GUI FTP client.
– Winscp. Is a GUI sftp client.
– Ngrep. Is a packet sniffer based on finding matching text strings.
– NeWT. Is a vulnerability scanner. (If you’re interested in obtaining this software after reading about it, go to
– OpenSSH. Creates secure, encrypted shell sessions.
– WinDump. Is a command-line packet sniffer. (If you’re interested in obtaining this software after reading about it, go to
– Winfingerprint. Is a network scanner.
– LocatePC. Emails you whenever any private or public IP address in your system changes.
– Open Computers and Software Inventory (OCS Inventory NG). Provides detailed inventory data for an entire network of computers as well as deploys packages. (If you’re interested in obtaining this software after reading about it, go to
– PRTG Traffic Grapher. Is a network monitor.
– SyncBack. Backs up or synchronizes files to another location:
– Wink. Builds screencast recordings. (The write-up for this tool isn’t in the main article but rather its sidebar “Screencasting with Wink”. If you’re interested in obtaining this software after reading about it, go to
– CamStudio. Builds screencast recordings.
– CDBurnerXP. Burns CD-ROMs, DVDs, audio CDs, and ISO images.
– Comodo Firewall Pro. Is a firewall and antivirus application.
– DriveImage XML. Is a program for imaging and backing up partitions and logical drives.
– GParted LiveCD. Manages partitions on systems. (You can also find information about GParted in “Tool Time: Repartition Windows Servers with GParted”.)
– PageDefrag. Determines how fragmented your paging files and registry hives are, and defragments them (c.f
– JkDefrag. Defragments and optimizes disks.
– TestDisk. Recovers damaged partitions, makes non-bootable disks bootable again, and repairs damaged boot sectors.

Free Virtualization tools:

– Free Tools for hyperV:

-If you work with virtual machines (VMs), check out the following 29 tools:
“Virtualization on the Cheap”
1. Catbird Compliance Enforcer. Analyzes existing virtual infrastructures, then highlights rogue VMs, quarantines suspect VMs, and generates compliance and security reports.
2. Citrix XenServer. Is a virtualization platform.
3. ConfigCheck. Evaluates an ESX Server installation to see whether it’s configured properly and in accordance with VMware’s best practices, particularly with regard to security guidelines.
4. EasyVMX. Lets you create web-based VMs.
5. Hyper-V. Is a virtualization platform.
6. Microsoft Assessment and Planning Toolkit. Searches out computers in a network, then generates a detailed inventory using Windows Management Instrumentation (WMI), SNMP, or Remote Registry Service.
7. Microsoft Virtual PC 2007. Is a virtualization platform.
8. OpsCheck. Troubleshoots configuration problems that might cause VMware VMotion to encounter problems.
9. PlateSpin Recon Inventory Edition. Profiles and analyzes data centers, then gathers information about traffic, workload, asset inventory, and application services.
10. Veeam Monitor Free Edition. Monitors VMware ESX and ESXi environments in real-time.
11. Virtual Iron Single Server Edition. Is a virtualization platform.
12. VirtualBox. Is a virtualization platform.
13. Vizioncore vOptimizer FreeWare. Squeezes Microsoft and VMware VMs into more manageable sizes.
14. VMware ESXi. Is a virtualization platform.
15. VMware Player. Loads and run VMs created by other virtualization products.
16. V-Scout. Aggregates and organizes information from up to two VMware VirtualCenter installations.
“More Free Virtualization Tools”
17. PHD website. Offers several free VMware utilities (e.g., VMNetBac, SnapHunter).
18. VM Explorer (VMX). Powers VMs on or off as well as backs up and restores VMs.
19. website. Offers several free virtualization utilities (e.g., GetVMwareDocs, Visio Action Pack).
“Free Virtualization Utilities”
20. ISO Recorder. Creates and burns ISO images.
21. Ultimate-P2V. Converts physical systems to VMs.
22. VHD Resizer. Expands and shrinks .vhd files.
23. VHDMount. Mounts a .vhd file as a local drive.
24. Virtual Floppy Drive. Mounts a virtual floppy drive from a VM.
25. Virtual Machine Remote Control Client Plus (VMRCplus). Manages, configures, and connects to Microsoft VMs.
26. VMDK to VHD Converter. Converts VMware images to Microsoft images.
27. VMmark. Benchmarks applications running in VMware VMs.
28. VMware Converter. Converts physical machines or Microsoft VMs to VMware VMs.
29. VMware Workstation 5.5 Disk Mount Utility. Mounts a VMware.vhd file on a Windows host.
Note that you can find more information about Hyper-V, VMware ESXi, and Citrix XenServer in “Free Hypervisors Extend Your IT Resources”.

Free Scripting tools:

No matter whether you write scripts or not, you’ll likely find many of the 14 tecommendations in “Script Writers’ Favorite Free Utilities” helpful:
1. Blat. A command-line utility that uses SMTP to send email or uses Network News Transfer Protocol (NNTP) to post to Usenet.
2. AutoIt v3 and SciTE Is a scripting language (AutoIt) and editor (SciTE).
3. CodeKeep Add-In. Is a code snippet manager for Visual Studio (VS).
4. DumpSec. Is a Windows security auditing program.
5. Joeware website. Offers many command-line utilities to automate AD tasks (e.g., AdQueueLoop, Unlock) and other tasks (e.g., DNSSrvRec, SidToName).
6. MD5WIN. Computes and compares Message-Digest algorithm 5 (MD5) digest strings.
7. NirSoft website. Offers numerous utilities for monitoring networks, managing passwords, retrieving Internet-related data, and performing other system-management tasks.
8. Notepad++. Is a text and code editor.
9. PSPad. Is a text and code editor.
10. Python. Is a programming/scripting language that you can use to automate tasks.
11. Regular Expression Laboratory. Lets you create regular expressions and test them against arbitrary text.
12. VIM. Is a text and code editor.
13. WinZip Command Line Support Add-On. Lets you use WinZip directly from the command line and from scripts.
14. Powershell editor and Gui powershell code builder:
check also the powerpacks (like plug-ins for powergui, to manage other windows applications).

Free tools for Sharepoint:

Freebies that might be of interest to SharePoint administrators include the following:
“SharePoint Freebies Someone You Might Know Might Want”
1. Document Connection for Mac. Aids in accessing and browsing Mac documents in SharePoint.
2. Free Technology for Microsoft SharePoint User Groups. Is a program to provide free add-ons and other products to community-organized SharePoint user groups.
3. Persian Language Pack for Windows SharePoint Services (WSS) 3.0.
“More SharePoint Freebies Someone You Might Know Might Want”
4. Discovery Wizard for SharePoint. Gathers SharePoint inventory data and displays it in HTML reports.
5. DocAve SQL Restore Controller. Provides item-level, site-level, and site collection-level restores from active SQL Server databases and from SQL Server backups.
6. Idera SharePoint performance monitor. Monitors SharePoint performance counters and sends email alerts when problems arise.
“Free SharePoint Archiving Tool Aims to Cut Bloat”
7. Metalogix Archiving Express for SharePoint. Archives SharePoint content.

Free tools for Exchange:

Some helpful freebies when working with Microsoft Exchange include:
“Top 10 Exchange Server 2007 Troubleshooting Tools”
1. Database Recovery Management Tool. Analyzes a database store and specifies the steps needed to mount it.
2. Database Troubleshooter. Analyzes database and transaction logs and their entries and reports on problems that might prevent you from recovering the database.
3. Dcdiag. Analyzes the state of domain controllers in a forest or enterprise and reports any problems.
4. Event Viewer. Lets you view Exchange-related events.
5. Mail Flow Troubleshooter. Identifies and repairs mail flow holdups.
6. Message Tracking. Reveals a message’s path through the Exchange Server organization when messages get lost in mail flow transit.
7. Nslookup. Helps troubleshoot DNS problems.
8. Performance Monitor. Analyzes counters associated with various aspects of system performance to see whether those counters fall within a designated range.
9. Performance Troubleshooter. Analyzes three RPC performance problems.
10. Queue Viewer. Lets you view and interact with mail flow queues.
“Two Exchange Server Tools You Should Know About”
11. Performance Analysis of Logs (PAL). Analyzes a performance monitor counter log analyzes and puts its findings in an HTML report.
12. ‘Rough and Tough’ Guide to Identifying Patterns in Transaction Logs. Provides a set of tools and associated processes for figuring out what’s happening on an Exchange server given a set of transaction log files.

Free tools for SQL Server:

If your IT duties include working with SQL Server, check out “The Mega Guide to Free SQL Server Tools”. This guide includes 80 tools, so the list is too long to print here. You can find out what those tools are at
At SQL Server Magazine, we’re all about helping DBAs and developers do their jobs faster and more efficiently—especially now, when they’re being expected to do more with less staff and funding. That’s why, when we realized just how many free SQL Server tools are available, we decided to bring them to your attention. You might recognize some of these tools from Kevin Kline’s Tool Time or Michael Otey’s Back Page, and many of these tools can be found on Microsoft’s CodePlex website. These tools were created by in-the-trenches DBAs and developers, as well as third-party SQL Server product vendors, to solve specific SQL Server problems or to fill holes in SQL Server’s functionality. There are so many free SQL Server tools that we couldn’t test them all, so be sure to test them yourself before running them in production.
• Data Scripter Add-in for Management Studio—This add-in lets you script data for SQL Server tables through SQL Server Management Studio (SSMS) (
• Iometer—This tool measures and characterizes I/O subsystems in single and clustered servers (
• Microsoft SQL Server 2005 Upgrade Advisor—This tool analyzes your SQL Server 2000 and SQL Server 7.0 instances to find features and configuration changes that could affect an upgrade to SQL Server 2005 (
• mRemote—You can use this tool (which supports both RDP and VNC) to manage your remote server connections from a central GUI (
• MSSQL Blocks—This tool collects information from multiple SQL Server 2005 and 2000 instances about locked or blocked processes and stores this information in XML files for later analysis (
• Orphan Finder—You can use Orphan Finder to find records in your SQL Server 2005 databases in which there are values in a foreign key column that aren’t in the parent table (
• Partition Management—This tool uses the Sliding Window technique to remove data from one partition and place it into a staging table, and creates a staging table that’s used to load data into partitions (
• Quest Software’s Toad for SQL Server Freeware—Toad for SQL Server Freeware offers a code and data editor, a data grid for modifying tables, and a database browser that lets you view and manage database objects graphically (
• SortSQLFilesInProject—You can use this tool to sort the SQL files contained in an SSMS project or the packages in a SQL Server Integration Services (SSIS) project (
• SQLDBSize 1.0—This tool graphically displays size information about your databases, tables, indexes, and more (
• SQL Management Studio Snapshot Add-In—This utility adds the Create Snapshot option to context menus in SSMS, enabling you to create a database snapshot (
• SQLRecon—SQLRecon finds all of your SQL Server and Microsoft SQL Server Desktop Engine (MSDE) systems by performing active and passive scans on your network (
• SQL Server 2008 Extended Events Manager—This tool lets you create, delete, modify, start, and stop Extended Events sessions and metadata files in SQL Server 2008 (
• SQL Server Automation Scripts—This tool provides SQL Server Agent jobs that you can use to perform automated maintenance tasks (
• SQL Server Database Copy Tool—With this utility, you can copy databases from one SQL Server system to another (
• SQL Server Express Utility—You can use this command-line utility to perform various SQL Server maintenance tasks (
• SQL Server Health and History Tool (SQLH2) Performance Collector—This tool collects performance counter data from your SQL Server systems and stores it in a repository (
• SQL Server Health and History Tool (SQLH2) Reports—Prevent performance problems by using this tool to collect and store change and trending information (
• YourSQLDba—You can use this T-SQL stored procedure to automate routine database maintenance tasks such as database and log backups and consistency checks (
Backup and Recovery
• Idera’s SQL safe Freeware Edition—This utility lets you back up and compress multiple databases of any size and offers a scriptable interface (
• AppAssure’s DocRetreiver Lite—This free tool lets you restore individual documents back to a SharePoint farm from a SQL Server backup (
Best Practice and Compliance
• Best Practices Analyzer Tool for Microsoft SQL Server 2000 1.0—You can use this tool to verify whether your SQL Server 2000 systems are managed and operated according to Microsoft’s SQL Server best practices (
• Microsoft SQL Server 2005 Assessment Configuration Pack for Sarbanes-Oxley Act (SOX)—This configuration pack audits SQL Server systems to see if they meet the SOX configuration requirements (
• SQL Server 2005 Best Practices Analyzer—This utility checks your databases for potential problems by using SQL Server 2005 best practices configurations (
• SQL Server FineBuild—FineBuild lets you install SQL Server 2008 and 2005 with one click, and provides best practice configurations as well (

Free tools for business intelligence and DB admins:

 • BIDS Helper—This Visual Studio .NET add-in enhances SQL Server 2008 and 2005’s Business Intelligence Development Studio (BIDS) (
• DTLoggedExec—With DTLoggedExec, each step executed by SSIS packages is logged, which makes configuring and troubleshooting SSIS packages fast and easy (
• Microsoft SQL Server 2005 Data Mining Add-ins for Microsoft Office 2007—These add-ins let you use SQL Server 2005’s predictive analysis features in Microsoft Excel 2007 and Microsoft Visio 2007 (
• Microsoft SQL Server Metadata-Driven ETL Management Studio (MDDE)—You can use MDDE to quickly generate SSIS packages (
• Reporting Services Scripter—This .NET Windows Forms application offers the ability to easily move SQL Server Reporting Services (SSRS) reports and catalog item properties between multiple servers (
• RSBuild—You can use this SSRS deployment tool to execute database scripts with ADO.NET and publish reports and data sources to SSRS (
• SQL Nexus—This front-end visualization tool is used to load and analyze performance data that was collected by SQLDiag and PSSDiag (
Change Management
• SQLDBSearch 2.0—With SQLDBSearch 2.0, you can find objects that could be affected by a soon-to-be implemented database change (
• Tarantino Database Change Management—This utility makes it easier to apply database schema and database changes to multiple SQL Server systems (
Code Formatters
• ApexSQL Refactor—This SQL Server Management Studio add-in offers 43 customizable options for formatting your SQL code and lets you preview your changes before you save them (
• Instant SQL Formatter—This tool not only reformats your SQL code but also turns your formatted SQL code into HTML code and translates your SQL code into other coding languages such as C# and Java (
• Manoli C# Code Format—You can use this tool to format code to the HTML 4.01 specification for a website or blog (
• Simple-Talk Code Prettifier—This tool converts your ASCII source code into HTML code so that you can paste it into an online element such as a blog or website (
• SQLinForm—With this SQL code formatter, SQL statements aren’t transferred over the Internet and there’s nothing to install (
Database Comparison
• CompareData—This utility uses ODBC drivers to compare and synchronize data between two SQL Server databases (
 • Open DBDiff—This database schema comparison tool provides you with a report showing the differences between two database schemas and includes a synchronization script that you can use to update the databases (
• SQL Accord Community Edition for Microsoft SQL Server—This tool offers schema comparison features via an interactive GUI (
• SQLDBDiff—You can use this tool to compare and synchronize SQL Server 2005 and 2000 database schemas (
• TableDiff.exe GUI—With TableDiff.exe GUI, you no longer have to run the TableDiff.exe table comparison tool (found in SQL Server 2005) from the command line (
Database Security
• Devenius SQL Encryption Assistant Basic Edition—You can use this SQL Server Management Studio add-in to manage your encryption keys (
• Idera’s SQL permissions—You can use this tool to move or copy SQL Server login information and permissions setting between servers (
• Lockdown.sql—Your SQL Server systems are locked down to the most secure configuration, letting you deploy systems that have only required functionality enabled (
• Microsoft Baseline Security Analyzer 2.1—This tool performs vulnerability assessment checks on your SQL Server systems to verify their security (
• SQLPing 3.0—SQLPing scans your network to find new and unprotected SQL Server and MSDE instances (
• DbFit—You can use DbFit to run Framework for Integrated Testing (FIT) tests directly against databases, making it easier to perform integration testing on databases (
• ScriptDB—This application scripts database objects using SQL Server Management Objects (SMO) (
• SpatialViewer—This utility lets you view spatial data easily (
• SQL Server PowerShell Extensions (SQLPSX)—This tool helps make working with SMO from PowerShell easier by offering PowerShell functions around SMO objects (
• SQL Spatial Tools—SQL Spatial Tools includes two tools: Shape2SQL, which you use to upload ESRI files to SQL Server Spatial, and SQLSpatial Query Tool, which queries SQL Server 2008 and displays the geometry output via a Windows Presentation Foundation map (
• SQLCLRProject—With SQLCLRProject, you can use MSBUILD tasks to deploy .NET assemblies to SQL Server 2008 and 2005 (
• SQLIO Disk Subsystem Benchmark Tool—With this tool, you could find out what the I/O capacity of a SQL Server configuration is (
• SQLScripter—This command-line utility automates schema generation and scripts SQL Server 2005 databases (
• SQLsharp—This free tool offers a CLR library of useful functions that you can use to write better SQL code in SQL Server 2008/2005 (
• SSMS Tools Pack—This suite of tools enhances SSMS’s functionality with features such as a query template tool and a CRUD procedure-generation tool (
• Stored Procedure Generator—This tool generates the stored procedures necessary to access tables in SQL Server (
• tsqlt—As a unit testing framework for T-SQL, tsqlt helps isolate functionality to be tested (

Free tools for DB job management or sysadmin performance monitoring:

Stress test tool, Heavy Load free tool from JAM software:

• Idera’s SQL job manager—With SQL job manager, you can view and manage SQL Server Agent jobs across multiple SQL Server systems from a central administration console (
• JAMS Monitor—With JAMS Monitor, you can manage Windows Task Scheduler and SQL Server jobs and ensure that they’re running successfully from a centralized management console (
Log Management
• Log Parser 2.2—You can use this tool to access text-based data (e.g., log files, XML files), as well as data sources in Windows (e.g., Active Directory, the event log) (
• PSSDIAG Data Collection Utility—This diagnostic data collector can be used to gather logs and data files (
Performance and Monitoring
• ClearTrace—You can use this graphical display tool to summarize query performance data from server-side trace and SQL Server Profiler sessions (
• DMVStats 1.01—You can use this tool to collect, analyze, and report on performance data from SQL Server 2005 Dynamic Management Views (DMVs) (
• Idera’s SQL check—This tool runs as a secure screensaver and monitors your SQL Server systems, as well as offers a look at processes, error logs, and SQL Server Agent jobs (
• Internals Viewer for SQL Server—You can use this tool to see how data is allocated, organized, and stored in the SQL Server storage engine (
• MDX Script Performance Analyser—You can use this tool to identify which statements in your SQL Server Analysis Services (SSAS) MDX script are negatively affecting MDX query performance (
• Performance Analysis of Logs (PAL) Tool—PAL automates the collection and analysis of performance counters in the Performance Monitor Counter log (
• Quest Discovery Wizard for SQL Server (beta)—You can use this tool to monitor your network for changes and find all your SQL Server instances (
• RML Utilities for SQL Server (x86)—With this tool, you can monitor SQL Server performance by processing SQL Server trace files and viewing reports, and test how a specific change will affect your SQL Server systems (
• SQLIOSim—SQLIOSim replicates SQL Server’s types and patterns of I/O requests on a disk subsystem and verifies data similarly to how SQL Server would in a production environment (
• SQLQueryStress—This tool is helpful when performance stress testing T-SQL queries because it collects data about whether your queries will run under load, and each query’s resource usage (
• SQL Server 2005 Performance Dashboard Reports—These reports help you quickly identify performance bottlenecks and provide the information necessary to resolve them (
• SQL Server Cache Manager—Find out what is being stored in the SQL Server cache and if the cache is being used efficiently with this free tool (
• SQL Server DBA Dashboard—This tool uses graphs and reports, which are integrated with SSMS, to identify what is using your SQL Server systems’ resources (
Prevent SQL Server Injection Attacks
• bsqlbf-v2—This Perl script lets you extract data from blind SQL injections (
• HP Scrawlr—This scanner tool crawls your web pages, checking for SQL injection vulnerabilities (
• Microsoft Source Code Analyzer for SQL Injection—You can use this tool to find SQL injection vulnerabilities in ASP code (
• URLScan—URLScan restricts the type of HTTP requests Microsoft IIS will process (
Web Administration
• SQL Server Hosting Toolkit—The SQL Server Hosting Toolkit offers two tools: the Database Publishing Wizard, which you can use to upload your databases to a hosting environment, and the Database Publishing Services, which offers ASP.NET web services that can make it easier for you to deploy databases (
• SQL Server Web Tools—This web-based administration tool lets you perform management tasks, including administering accounts, managing databases and tables, and creating and running queries and stored procedures (
• SQL Web Data Administrator—This SQL Server management tool lets you create and edit databases, export and import database schema and data, and more (
Who Says Nothing in Life Is Free?
Although this list includes dozens of free SQL Server tools, it doesn’t include them all. If you know about a free SQL Server utility that’s not on this list, we want to hear about it: You can email me at Also, please share your feedback about the tools included in this list in the Tool Time forum at For even more free tools, see the sidebars “Free SQL Server Projects and Samples” and “Free PowerShell Scripts for SQL Server.”

Hi, here is a new article to explain how to limit ldap queries (in order to minimize attacks or to minimize impact on the performance of ldap/AD server):

Technet article:

AD does not allow anonymous connection:

By default, anonymous Lightweight Directory Access Protocol (LDAP) operations to Active Directory, other than rootDSE searches and binds, are not permitted in Microsoft Windows Server 2003 or greater.

Using ntdsutil to limit AD queries:

These limits prevent specific operations from adversely affecting the performance of the server, and also make the server more resilient to some types of attacks.

Windows Server 2008 and newer domain controller returns only 5000 values in a LDAP response:

Override the hardcoded LDAP Query limits introduced in Windows Server 2008 and Windows Server 2008 R2:

Main entry point:

step1 – backup AD LDS:

step2 – restore AD LDS:

On MS Technet:


 Active Directory Lightweight Directory Services Operations Guide

The simplest way is using the MMC certificates. However is it only available for the GUI-based Windows servers. If you are using Core-based Servers, you cannot use the MMC. Or if you prefer, it is also possible using the command line:

Note: To request a SSL certificate on w2k8-w2k8r2, it is recommended to use the default CA template: Kerberos Authentication (typically for Domain controllers – but it requires FW rule TCP 445 from Issuing CA to Domain controllers. We suppose here below, the kerberosauthentication template is published by your enterprise PKI and you enable the Subject Alternative Names too.

Procedure using certreq:

1) from the server: create a request.inf file that contains

;----------------- request.inf -----------------
Signature="$Windows NT$
Subject = "CN=<DC fqdn>" ; replace with the FQDN of the DC
KeySpec = 1
KeyLength = 2048
Exportable = TRUE
MachineKeySet = TRUE
SMIME = False
PrivateKeyArchive = FALSE
UserProtected = FALSE
UseExistingKeySet = FALSE
ProviderName = "Microsoft RSA SChannel Cryptographic Provider"
ProviderType = 12
RequestType = PKCS10
KeyUsage = 0xa0

CertificateTemplate = KerberosAuthentication
; Omit section below if CA is an enterprise CA
OID= ; Server Authentication
;----------------- end of request.inf -----------------

2) prepare the request:

certreq -new request.inf request.req

3) You must request the certificate using the SYSTEM account on local computer

psexec -s -i cmd.exe

certreq -submit -config “\MYCANAME” request.req certnew.cer

and you are prompted to save it locally

4) Install the certificate:

certreq -accept certnew.cer

5) You can test LDAPS using ldp.exe tool

6) This lists the certificates in computer,personal store:  certutil -store My

check certificate store: certutil -verifyStore My

repair certificate: certuil -repairstore My <CertNum>

This lists the templates available to the current computer: certutil -templates > d:\output.txt

I also collected web resources:

Certificate templates overview:

FW ports for AD CS:

Troubleshooting Certificate enrollment:


Enable LDAP over SSL (LDAPS) on Windows 2008 Active Directory Domain:

LDAP over SSL (LDAPS) Certificate:

Event ID 1220 — LDAP over SSL (LDAPS):

Troubleshooting LDAP Over SSL:

How to enable LDAP over SSL with a third-party certification authority: using certreq utility:

Ldapsearch is available by default on most of Linux/Unix with Openldap packages installed.
else ldapsearch is also available on Windows servers:
syntax: ldapsearch -x -LLL -E pr=200/noprompt -h [AD Host] -D [AD User] -w [AD Pass] -b [Base DN] -s sub "([LDAP Filter])" [attr list]
example: ldapsearch -b dc=mydomain,dc=net -h -D 'cn=app-nceldap,ou=services&applis,dc=mydomain,dc=net' -w passwd '(&(objectcategory=person)(objectclass=user)(employeeid=1234))' sAMAccountName

LDAP resources


LDAP (Lightweight Directory Access Protocol) est un protocole d’accès à un annuaire,  dérivé d’ X500, au dessus de TCP/IP. C’est une implémentation allégée du protocole ISO DAP. Il est devenu le standard des annuaires électroniques qui prennent de plus en plus d’importance dans les systèmes d’information des entreprises…

Pointeurs pour démarrer

Les RFCs

Le coeur de LDAP :

  • RFC 4511 : Lightweight Directory Access Protocol (v3)
  • RFC 4517 : Lightweight Directory Access Protocol (v3): Syntaxes and Matching Rules
  • RFC 4514 : Lightweight Directory Access Protocol (v3): UTF-8 String Representation of Distinguished Names
  • RFC 4515 : The String Representation of LDAP Search Filters
  • RFC 4516 : The LDAP URL Format
  • RFC 2256 : A Summary of the X.500(96) User Schema for use with LDAPv3
  • RFC 2829 : Authentication Methods for LDAP
  • RFC 2830 : Lightweight Directory Access Protocol (v3): Extension for Transport Layer Security
  • RFC 3377 : Lightweight Directory Access Protocol (v3): Technical Specification
  • RFC 4518 : Lightweight Directory Access Protocol (LDAP): Internationalized String Preparation

Autour de LDAP :

  • RFC 2247 : Using Domains in LDAP/X.500 Distinguished Names
  • RFC 2307 : An Approach for Using LDAP as a Network Information Service
  • RFC 2377 : Naming Plan for Internet Directory-Enabled Applications
  • RFC 2589 : Lightweight Directory Access Protocol (v3): Extensions for Dynamic Directory Services
  • RFC 2596 : Use of Language Codes in LDAP
  • RFC 2891 : LDAP Control Extension for Server Side Sorting of Search Results
  • RFC 3062 : LDAP Password Modify Extended Operation
  • RFC 3112 : LDAP Authentication Password Schema
  • RFC 2044 : UTF-8, a transformation format of Unicode and ISO 10646
  • RFC 2849 : The LDAP Data Interchange Format (LDIF) – Technical Specification
  • RFC 3384 : LDAPv3 Replication Requirements

Les serveurs

*Implémentations commerciales :

Des clients et des passerelles

  • LDAP Browser/Editor est un butineur graphique LDAP en Java
  • JXplorer est un autre butineur graphique LDAP en Java
  • GQ est un butineur graphique s’appuyant sur GTK
  • Luma est un gestionnaire graphique, basé sur python-ldap, extensible via des plugins
  • Frood est un butineur Gtk-Perl/PerLDAP
  • phpLDAPadmin est un client web d’administration/exploration  LDAP
  • KLDAP est un client ldap pour KDE
  • ldapvi ou comment modifier des entrées LDAP avec un éditeur de texte
  • web500gw est une passerelle HTTP/LDAP autonome
  • web2ldap est une passerelle HTTP/LDAP en Python multi-plateformes (Unix/Windows)
  • LAST est un outil d’administration d’annuaire en http à base de scripts Perl et de CGI
  • auth_ldap est un module d’authentification LDAP pour Apache
  • WXD est une autre passerelle HTTP/LDAP autonome (commerciale)
  • Calendra Directory Manager® est un gestionnaire de contenu d’annuaires orienté métiers
  • Meibo est un gestionnaire de contenu dédié de Ilex
  • Apache Directory Studio est un plugin/application RCP Eclipse (multi plate-formes donc) permettant la navigation dans un DIT et l’édition de données ainsi que de schémas. Il permet également d’éditer les ACIs du serveur Apache Directory Server

Connecteurs et meta-annuaires


  • mod_auth_ldap : un module d’authentification pour Apache utilisant les mécanismes standard d’authentification HTTP
  • mod_authz_ldap : un module d’authentification/autorisation pour Apache exploitant les certificats X509
  • lemonLDAP : un reverse-proxy d’authenfication d’accès à des applications web

Tout sur les schémas standardisés


À propos du nommage

L’intégration de LDAP dans Linux (en standard dans la plupart des distributions)

Plus loin


  • Une librairie PHP pour faciliter le développement d’applications d’interrogation et de mise à jour d’annuaires : CruLDAP