Windows Archive

Managing NTFS Permissions in Windows

NTFS permissions in Windows are used to restrict access to folders and files on disk partitions formatted with the NTFS file system. NTFS permissions provide flexible protection for file system objects, they can be applied to folders or to individual files; they apply both on local and on remote

How to Map a Network Drive in Windows 10?

In Windows you can connect any SMB network shared folder located on a remote computer or server as a mapped drive. In this way, you connect a NAS network drive, or a USB flash drive connected to your home router. The mapped network folder is assigned a separate drive

How to Create Reverse DNS Lookup Zones and PTR Record on Windows DNS Server?

A Reverse DNS Lookup zone is a special DNS zone type, which is needed to perform a reverse DNS query and to resolve the host or domain name by its IP using a PTR record. The IP addresses in the reverse lookup zone are stored in a special reverse

What is DHCP Lease Time?

Computers that are configured to automatically obtain an IP addresses from a DHCP (Dynamic Host Configuration Protocol) server receive an IP address not for permanent use, but for a fixed period of time. This time period is called the DHCP Lease Time. Upon expiration of the lease, this IP

Configuring DC for Sync Time with External NTP Server

In this article, we will take a look on how to configure a domain controller with the FSMO role PDC Emulator (Primary Domain Controller) to synchronize time with the external time source (NTP server). First of all, we remind you how time synchronization works in the Active Directory forest:

Migrating SYSVOL AD Replication from FRS to DFS

The SYSVOL folder on any Active Directory domain controller stores Group Policies settings and templates, scripts, and other objects that the AD or GPO administrator placed there. And each domain controller has its own copy of GPOs, which over time is synchronized with other domain controllers in the domain.

Active Directory LDAP Query Examples

LDAP queries can be used to search for objects (computers, users, groups) in the Active Directory LDAP database according to certain criteria. To perform LDAP query against the AD LDAP catalog, you can use various utilities (for example ldapsearch), PowerShell or VBS scripts, Saved Queries feature in in the

SamAccountName and UserPrincipalName attributes

User accounts in Active Directory have various attributes, among which there are two interesting attributes: samAccountName and UserPrincipalName (usually it is called UPN), the differences between which are not understood by many Windows administrators. In this article, we will take a look at the difference between the samAccountName and

Using ldapsearch to Query Active Directory Objects

The ldapsearch utility is one of the important tools for the administrator of the LDAP (Lightweight Directory Access Protocol) server. It allows you to get any data that is available in the LDAP directory. Currently the most common LDAP implementations are OpenLDAP and Microsoft Active Directory. The ldapsearch utility

Changing Active Directory krbtgt Account Password

Krbtgt user account is automatically created when promoting a new Active Directory domain. However, many AD administrators do not have sufficient knowledge of this account, which is very important from security point of view and the entire domain operation. Let’s try to fix it! The krbtgt account with RID