Local W2K Workstation Registry Changes

Posted on 2003-11-10
Last Modified: 2013-12-04
Off the top of anyones head, is there any blatant registry changes that need to be made at the local workstation in the registry.  I have already changed the Hash value for Local login to only keep up with 1 instead of 10.  I am really looking for the biggies here.  

There is probably going to be numerous suggestions, so points will be split according to severity.

Question by:neowolf219
  • 2

Accepted Solution

juliancrawford earned 500 total points
ID: 9720995
Most of them are intended to defend against Denial of Service attacks, while the others help prevent such things as the enumeration of accounts by unauthenticated users.
Under HKEY_LOCAL_MACHINE \SYSTEM \CurrentControlSet \Services add or modify the following values:
Key: Tcpip\Parameters
Value: SynAttackProtect
Value Type: REG_DWORD
Parameter: 2
Key: Tcpip\Parameters
Value: TcpMaxHalfOpen
Value Type: REG_DWORD
Parameter: 100
Key: Tcpip\Parameters
Value: TcpMaxHalfOpenRetried
Value Type: REG_DWORD
Parameter: 80
Key: Tcpip\Parameters
Value: EnablePMTUDiscovery
Value Type: REG_DWORD
Parameter: 0
Key: Tcpip\Parameters
Value: EnableDeadGWDetect
Value Type: REG_DWORD
Parameter: 0
Key: Tcpip\Parameters
Value: KeepAliveTime
Value Type: REG_DWORD
Parameter: 300000
Key: Tcpip\Parameters
Value: EnableICMPRedirect
Value Type: REG_DWORD
Parameter: 0
Key: Tcpip\Parameters\Interfaces\
Value: PerformRouterDiscovery
Value Type: REG_DWORD
Parameter: 0
Key: Netbt\Parameters
Value: NoNameReleaseOnDemand
Value Type: REG_DWORD
Parameter: 1
Under HKEY_LOCAL_MACHINE \SYSTEM \CurrentControlSet \Control add or modify the following value:
Key: Lsa
Value: RestrictAnonymous
Value Type: REG_DWORD
Parameter: 1
another neat trick is changing the file association for the .REG extension to something like NOTEPAD.EXE. This will prevent malicious web sites from adding registry keys without your knowledge.

Author Comment

ID: 9722234

Thank, that's what I need.  Do you have any links that could maybe tell me a bit more about what each one of the Value Type and Parameters are and how they effect the workstation.  I'll wait for your reply, and if it is sufficient I'll reward you all the points (barring no one else chimes in)

Expert Comment

ID: 9725458
Here are a few links I use that covers some registry settings - but I think your after more detail - I would do a google search on individual keys and you should get more detailed info.

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
suspending the anti virus 6 140
SSL certificate pack 6 284
PCI scan - CIFS NULL Session Permitted 10 157
Lenovo Helix Laptop: Bitlocker appears to be preventing boot 7 101
No security measures warrant 100% as a "silver bullet". The truth is we also cannot assume anything but a defensive and vigilance posture. Adopt no trust by default and reveal in assumption. Only assume anonymity or invisibility in the reverse. Safe…
Article by: btan
The intent is not to repeat what many has know about Ransomware but more to join its dots of what is it, who are the victims, why it exists, when and how we respond on infection. Lastly, sum up in a glance to share such information with more to help…
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit If you want to manage em…
In a recent question ( here at Experts Exchange, a member asked how to run an AutoHotkey script (.AHK) directly from Notepad++ (aka NPP). This video…

821 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question