Microsoft – Changing SID of cloned VMs

On the machine level, every computer is identified by a unique value; named Security ID or SID. SID is calculated in the process of the installation of every Windows machine. Whether the computer is part of the workgroup (or it’s just a stand-alone computer), the value of SID is not crucial. Read More …

Powershell – Find computer name and domain

Sometimes it’s useful to know the computer name and domain you are working on. The first of the following commands returns the FQDN of the computer on the format whereas the second one returns a list of information about the system. Read More …

Enabling DNS Registration Refresh Interval

On Active Directory domains is very important that clients set automatically their own DNS names on authoritative DNS servers for Read More …

Windows – Clear Group Policy Cache

That’s quite uncommon, but if we need to clear the local cache of Group Policies Objects (GPO) on a workstation/laptop joined to a domain, there are three main methods we can use to accomplish this activity. Read More …

Active Directory – Schema Master FSMO Role

Schema Master is another FSMO role which is responsible for making changes to the Active Directory schema. The schema stores descriptions of all Active Directory classes and attributes (LDAP://cn=schema,cn=configuration,dc=). Read More …

Powershell – Force gpupdate on all Domain Computers

Client computers update Group Policies every 90 minutes by default, in a functional and working domain. In this brief article Read More …

Microsoft Active Directory Cached Credentials

On Microsoft Active Directory environments, Cached credentials allow a user to access machine resources when a domain controller is unavailable. After a successful domain logon, a form of the logon information is cached. Later, a user can log on to the computer by using the domain account, even if the domain controller that authenticated the user is unavailable. Because the user has already been authenticated, Read More …

Excel – Allow Certain Users to Edit Cells Range

Excel offers you an ability to assign user-level permissions to different areas on a protected spreadsheet. You can specify which users (usually local or Active Directory ones) can edit a particular range while the spreadsheet is protected. Read More …