Posts

Windows Deployement Services

-
Image
WDS Or Windows Deployment Services WDS or Windows Deployment Service is a great feature of Microsoft’s Windows Server which enables us to deploy the fresh OS to the new machines or servers in a company or in a network. WDS provides the facility to PXE or Pre Execution boot PCs in the environment. On the client’s side, we just have to set the boot order to network boot or PXE boot and if we press the  F12 key it will lead you directly to the WDS server for further installation. We will learn how to setup WDS in this post later, first learn other things that are related to WDS and PXE boot. WDS is the best option when you have to install an Operating System in a number of PCs in a single attempt, you don’t have to install OS via disk or USB one at a time. WDS has other benefits as well like you can deploy an image with pre-configured applications like you wan to install an OS witch includes office and Adobe photoshop you can create an image for that as well. To create such images
Post a Comment
Read more

Group Policy, GPO and its use

-
Image
Group Policy Group Policy is a feature of Microsoft's OS that is a way to configure or control user’s computer settings. It also controls the working environment that does restrict users in order to start or use hardware and applications on their computers.  Group policy is nothing different from local computer policy, it is named group policy just because it works on groups rather than a single user. I t is very difficult for IT admins in a big environment where a number of users are connected to a domain to modifying policy locally if they apply or modify local policy all the time whenever a user joins a domain or suppose a group of people need some modifications in their working environment, it is going to create a mess.  To overcome this problem group policy concept is designed, where group policy is associated and deploy to a particular group within a domain and it is automatically reflected on each and every user. We can also set up a password policy with the help of group
Post a Comment
Read more

What are the Ports?

-
Image
Port In computer networks, a port is logically a set of network services or a code that provides communication over TCP/IP protocol suite which listens to various sorts of requests in networks while communicating locally or over the internet. Likewise, we could have hardware ports as well which connects different devices to each other. So, every protocol has some specific port or a range in which a port could bind if multiple applications are going to use the same port. There are a number of ports in networks, some of them are as below_ 1 - DNS - 53 2 - DHCP Client - 68 3 - DHCP Server - 67 4 - RDP - 3389 5 - LDAP - 389 6 - FTP Server - 20 7 - FTP Client - 21 8 - SSH - 22 9 - Telnet                     - 23 10 - SMTP           - 25 11 - HTTP - 80 12 - HTTPS - 443 13 - POP3 - 110 14 - IMAP - 143 15 - UDP - 0 - 65535 16 - TFTP - 69 17 - GC
Post a Comment
Read more

DNS, DNS Server, DNS Zones, and DNS Records

-
Image
What is DNS or DNS server? DNS DNS stands for Domain Name System or Domain Name Service, it is a service that helps you to access any website or URL on the Internet, there are thousands of websites and URLs are available over the Internet having corresponding IP addresses, so it is very difficult to memorize all those IPs, to overcome this issue, a name is associated with each IP address that can be memorized by humans easily. So, there is a mapping behind the scene and this mapping from the name or URL to IP or vice versa is handled by the DNS server. Whenever you type a name in the browser the request is passed to a DNS server which resolves the IP address and finds out the corresponding data over the Internet. You can find out the URL name from an IP or IP from a URL. The port used by the DNS is 53. DNS Server DNS server is basically a server running DNS services, every organization has a DNS server setup for its internal domain controller or user’s machine mapping. A DNS
Post a Comment
Read more

What is DHCP or DHCP server?

-
Image
What is DHCP or DHCP server or DORA?                                                      DHCP DHCP is an abbreviation of Dynamic Host Configuration Protocol, it is a protocol that helps you to gain an IP address whenever your device boots up in the personal or public network. It provides a dynamic IP address from the IP pool for your device. Clint DHCP uses port 68 and 67 for servers to listen to requests in a network. Whenever a device boots up it uses DORA(Discover Offer Request Acknowledge) concept, which works like the below: At boot-up time device sends a broadcast request known as discover request in the network, the DHCP server or DHCP agent listens to that request and offers an IP address to the device, the device then sends a request back to the agent or server, and thereafter the requested IP address is acknowledged by the agent or the server. As we know DHCP provides a dynamic IP address from the pool so to utilizes fewer IPs mostly agent and DHCP servers are con
1 comment
Read more

What is a Shared Drive, Shared folder or network Share?

-
Image
Shared Drive You all have heard something about Shared drive or Network drives like a NAS or a shared drive in the network. The shared dive concept is widely used by organizations, where data needs to be shared from a drive that is not physically available on the computer. Shared Drives are just normally HDD or SSD drives which are being shared among multiple people in a network. There are a number of benefits of using shared drives like: Centralized Management Policy Enforcement Single Sharing space If we talk about Centralised Management means you can upload some sort of common data being shared among people, only those people who have access to that drive will see and can control that data.  Secondly, policy enforcement that means if you have set up some sort of group policy and want to enhance or modify security aspects of that shared drive you can simply update group policy or create a group policy and then attach it with your shared drive. Thirdly,
Post a Comment
Read more

Active Directory

-
Image
Active Directory The Active Directory or Microsoft active directory service is a feature of the Microsoft Windows server. This feature is a part of Microsoft since the launch of windows server 2000, and it's being evolved gradually to enhance AD service. Active Directory is based on Microsoft's jet database engine and uses LDAP (Light Weight Directory Access Protocol) directory protocol to query the database. Active Directory uses Kerberos as an authentication protocol, which is an upgrade of the NTLM protocol used by windows in its late versions.  Active Directory is a very powerful feature of the Microsoft Windows server because it allows us to create and manage users, computers, printers, and groups within a domain. We can apply permissions and security over domain users, computers, and printers. It is divided into logical and physical components. Active Directory database stored in a file called NTDS.dit (NT Directory Service, directory information tree), and this fil
Post a Comment
Read more