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Windows Networking





The Windows operating systems have distinct methodologies for designing and implementing networks, and have specific systems to accomplish various networking processes, such as Exchange for email, Sharepoint for shared files and programs, and IIS for delivery of web pages. Microsoft also produces server technologies for networked database use, security and virtualization.

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Hi. I need a way of restricting access to a Windows share to domain-joined computers only, or even a subset of domain computers, for a project where we need to be able to stop users accessing certain areas on the server from their home computers, while still allowing them access to other areas from said uncontrolled computer.

Authorised Domain User on Authorised Domain Computer = OK
Authorised Domain User on Unauthorised Domain Computer = DENIED
Authorised Domain User on Home Computer = DENIED
and of course Home User on Home Computer = DENIED (but that's a no brainer)

Fundamentals of JavaScript
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Fundamentals of JavaScript

Learn the fundamentals of the popular programming language JavaScript so that you can explore the realm of web development.

We have a windows server 2008 with DHCP enabled. The scope properties display [] with start IP, end IP, subnet We want to know the easiest way to increase the number of IP addresses (example 1000 max) that can be given out by the DHCP server and make sure that everything is still routeable. For example, if one of the new IP addresses let's say is 172.22.2.x will that device be able to see the server at and access the gateway at We want to know how to do this and set it up properly.
What are the best practices providing Admin access for Active Directory for Developers.
Devs writing an application that will authenticate using active directory. In order to do so they will need to generate a key the
application. They will also need to create different groups of users and place users in the groups. They believe having admin access will make this a lot easier than asking for each thing in turn.

How is everyone dealing with these similar requests?  Please advice.
What to adjust on server, as port 993 is not responding, like is responding on port 80 (http). isn't responding on port 993 (imaps).
while I already opened TCP & UDP Inbound & Outbound Firewall rules on 993 port.
I know it is going to be a huge, huge list but is there a utility out there that will go through every folder and sub folder on the server and report who has what rights to those folders?
I have a standalone windows 2016 server in a datacenter
It was nagging about a remote desktop licence key but I assumed it was because I haven't activated windows

Its not stopped accepting remote desktop sessions with the error:
The remote session was disconnected because there are no Remote Desktop License Servers available to provide a license

I logged into the host console and applied my licence key to activate windows 2016 server, but its still having the same issue where i cannot connect on RDP

All my others servers in the past have not had these issues.
This server sits on its own with no other (of my)  servers around it, and only 1 user account to access it

Can anyone help me get it working?
OK, Friends. I need help with DNS, DOMAIN CONTROLLER on Windows 2016 Stadard

I try to find out how to add additional DC to my Windows 2012R2 functionality forest but I have so many problems.

I'm in the middle of moving all my 2012 R2 servers to new hardware with new OS  - Windows 2016

I have installed new OS for server that will be my new DC with FSMO role.
I did this many times in the past so whole procedure is straight forward but not this time
My problem is that since I'm running out of IP addresses in my 10.0.0.x family I've decided to extend my subnet by installing Superscop on my DHCP server. This was done a year ago and all is working OK since.

I've changed network mask for all computers from to to give them access to 2 subnets 10.0.0.x and 10.0.1.x
Simple yes ?
I've confirmed and my DHCP server is assigning IP from new subnet / second superscope as soon as first is full. This is what I want.

So I've installed new server and I've installed AD DS role on it.
All went smooth. I've restarted server and run configuration to promote this new server to be a third DC

and here we go:
I'm getting an error.

On first step - Deployment Configuration I have error:

The wizard cannot access the list of domains in the forest. The error is: The network path was not found.

I did a lot of research in internet but all points to DNS issue which in my configuration is OK.

I have 2 DCs in network:

Master: - also DNS,…
Problem printing to 2 win 10 1803 PC. One is a desktop, both are brand new machines, one a laptop,
I Have 6 other win 10 PC’s in office including another laptop, all these work.
Current Users are administrator user,
NO AD, just workgroup
All pc’s are updated

I have done all the following changes,

Turned off firewalls and A/V completely, same Server connection error from bizhub c364
Turned on firewall, open all smb ports and port 445 to allow scans, same Server connection error from bizhub c364
Deleted then scans folder and recreate folder and sharing with everyone at full control, and current user sign in name as full control, same Server connection error from bizhub c364
Deleted and re completed the registration in address book.
Have also tic’d and untic’d the smb1 feature in add and remove features.
Have also turned OFF/ON file sharing, network discovery, and file sharing in network advanced settings

All other PC’s (Win 10 1803) work fine using the following registrations, example given,

Host Name--  (IP) address of the pc)
Folder--            scans      (shared scan folder with full permissions off the C drive like others)
User name            user      (local user name)
Password      password      (local user name password)

The error from the bizhub never changes, “server connection error”
all pc’s have no internet issues, can ping printer IP from the 2 not working, have powered printer on and off. Very frustrating. I am to believe that smb2 is already enabled …
I have a client who has an application which involves a combination of VBScript and Access to download data from an FTP site and then process that data into multiple Access databases. I'm not happy with the way this was implemented but I'm stuck with it.

I received an email this afternoon which indicates that about 15-20 of the files that should have been downloaded and processed on Monday did not make it into the Access databases.

Indications are that something occurred on there servers which affected their authentication service.  Any chance that this would have affected ADO communications between the VBScript and the Access BE databases?  I'm not a huge fan of VBScript or ADO and don't use either often enough to know what will or will not affect them.

I have several directory structures and I want users to be able to edit files in those directory structures but I do not want them adding files or changing the directory structure. Can this be done with NTFS Permissions?
CompTIA Cloud+
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CompTIA Cloud+

The CompTIA Cloud+ Basic training course will teach you about cloud concepts and models, data storage, networking, and network infrastructure.

Our business just got a new copier.  The old copier drivers work on the new copier, but I want to update workstations to the new driver.  So, I added a 2nd printer GPO (users/policy/windows/deploy printer) and (computers/policy/windows/deploy printer), so the transition would be seemless to the end user.  In a couple weeks, I want to remove the old printer driver gpo (gpo setup the same way).  If I simply delete the old gpo, will the printers disappear from the users device & printers?  If not, what do I have to do to remove the old printer install?

I have created an application that adds permissions to a Shared Folder on a Window server (this is important as I'm setting permissions on a share and NOT NTFS).

I now need to do the opposite and remove the group 'Everyone' from the Share permission.  I have a piece of code that gets the existing permissions as follows:

 Dim securityDescriptor As ManagementBaseObject = TryCast(securityDescriptorObject.Properties("Descriptor").Value, ManagementBaseObject)
        Dim existingAcessControlEntriesCount As Integer = 0
        Dim accessControlList As ManagementBaseObject() = TryCast(securityDescriptor.Properties("DACL").Value, ManagementBaseObject())

        If accessControlList Is Nothing Then
            accessControlList = New ManagementBaseObject(0) {}
            existingAcessControlEntriesCount = accessControlList.Length
            Array.Resize(accessControlList, accessControlList.Length + 1)
        End If

As you can see above, I am using an ACL list and I extend it  so that I can then add the new ACL for the group I want to give permissions to.  I now wish to do the opposite and remove an entry from the accessControlList.

Now, I am convinced that if I were to remove one of the existing entries from this accessControlList before committing it back, that would remove a permission for an existing object but I don't know how to enumerate the accessControlList to find the entry I want to remove.

In pseudo-code, this is what I …
We are looking at some interesting connections that appear to be inbound from the below snippet:
Incoming connection from ( [source ip here] Port 46525 ) to svchost.exe

The source of the incoming traffic is connected to an external suspicious ip address and not part of our infrastructure.  We would like to see if there is a way to determine whether incoming traffic with svchost.exe as the communicating file can be reasonably white listed?

Is there a set of expected source ip's that we could reference that would allow us to sift out possible known external ip's that are valid incoming connections to an svchost.exe process running on an end point?
I have hardware VPN with two draytek routers. ip on one side and on the remote side.

My dns server (windows 2012) is set on the 192.168.1.Χ network.

If i try nslookup domain.name on the remote location ( i get good results: (dns)  and i also get the domain name.

If i try nslookup domain.name in the 192.168.1. X network is get "non existent domain"!

I'm able to ping the dns server and i'm also able to ping to FQDN.

Any possible solutions? Any recommendation on what to look?

We had a power outage and unexpected power shutdown on our RDP server and now I am not able to RDP thorough the internet.
It says Error: Unable to display RD Web Access.  On the event viewer says The service did not start due to logon failure.
Not sure if this service  start by local system account or domain administrator account.

I logged into the RDP server and some of the services have stopped and if I start the  Remote desktop connection  , I get the Error 1068.

On the RDP server I click the remote desktop services, it says “The server pool does not match the RD connection Broker that are in it”

On the event viewer i get event 7001, Source - service control manager

Please see the snapshot.
 Any help to resolve this would be great and thanks in advance.
Remote users not getting notified when their network password needs changing

We have a Microsoft network using a Cisco VPN and have remote users

The problem is  the remote users never gets notified that they need to change their password
The password is not changed and the remote user gets locked out- since they were never notified

I was told there is no fix

Anyone have a solution?

I am being dinged by auditors since I have to have the remote users Network passwords set in Active Directory that they cannot be changed
Is it going to be feasible to setup a single VLAN for IP phones and a separate VLAN for each port with the phone VLAN on rash port?
Hi guys,

I use https link to mapdrive few remote users.
But whenever computer restarts, it keeps on asking for credentials to re enter. Tried remembering my credentials, in mapdrive, still did not work.  
Tried cmd batch files with persistent command. Still it remembers the mapdrive, but keep on asking credentials .

Is there anything I need to change in IE settings to make it work ? Or any other ideas ??

I have a question regarding the builtin windows group "backup operators". Do I have to add this group to the directories which I want to backup or does this account have the permission even if I do not set the proper ntfs permissions?

Thank you in advance!
OWASP: Avoiding Hacker Tricks
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OWASP: Avoiding Hacker Tricks

Learn to build secure applications from the mindset of the hacker and avoid being exploited.

Hi Experts,

I have a continuous form in my application containing a few text boxes that are set for conditional formatting.

While the application was in MDB format (A2003) it worked fine.

However since converted to ACCDB (A2016) the form is loading/formatting records extremely slow.

Every time user filters or sorts it keeps repainting the entire screen several time, moving thru all records up and down...

What is the solution?

Attached screenshot of what the form looks like.
Currently i have two on-prem domain controllers. One physical and one VM.  On VM I only have an Azure AD Connect.  Wonder if make sense to move that VM DC onto MS Azure Cloud. So I can avoid all these environmental issues.    VM Host fail, process chewed up CPU cycles, cooling issues, etc.  
Any drawbacks to have that Domain Controller in Azure Cloud?  Roughly ~500 users already and growing.
I need help with Hyper-V VMM. Started out just using Hyper-V Manager only but now trying to wrap my head around Virtual Machine Manager (VMM).

1. If I have a VLAN set on a VM in Hyper-V Manager, is it possible for me to change the VM's VLAN through VMM? Reason I ask is I did change the VLAN on the VMM side but it is still the same on the VM when I look at it in Hyper-V. VM also asks like it is in the same VLAN.

VMM Side

2. Anyone have any good resource on how to set-up being able to use VLANs in Hyper-V in the simplest way.
What's the best way to populate user's mobile phone numbers into the Active Directory under Telephones tab.   Is it something I can do with powershell from CSV file?
Please advice.  Thanks!

I may have a stupid question but, I have ip address for proxies and I want to find open ports for it. Can you help me find online tools for this?

Thank you!

Dear Experts

We have been provided to configure email account in CRM system to send email through the SMTP server using  office365 connector ( SMTP Relay ) the provided account is of without the password (hence in CRM system configured without SMTP authentication) , we were able to configure this account in CRM system and able to send mails but the messages are not getting stored in sent items. to achieve this should we have to go for Authenticate CRM application directly with an Office 365 mailbox, and send mail using SMTP client submission please suggest, thanks in advance.

Windows Networking





The Windows operating systems have distinct methodologies for designing and implementing networks, and have specific systems to accomplish various networking processes, such as Exchange for email, Sharepoint for shared files and programs, and IIS for delivery of web pages. Microsoft also produces server technologies for networked database use, security and virtualization.