Managed Services
- Server Installations, configurations & support.
- Internet/Intranet & E-mail Solutions on Networks.
- VPN Installation & Configuration.
- ADSL Solutions including remote access and working from Home.
- Wireless Network Solutions.
- mySQL Server Installation.
- SharePoint Services.
- E-mail Security Solutions.
- Backup Solutions & disaster recovery options.
- Client & Server Support including 24x7 Facility Management.
- Implement MS security hot fixes.
- Verify Anti virus definitions & live updates.
- Diagnosing possible hardware issues.
- Firewall / security check.
- Complete documentation of Network Configuration.
- Migration: Active Directory, Exchange Servers
DNS(Domain Name System) and DHCP(Dynamic Host Configuration Protocol)
Domain Name System
The Domain Name System (DNS) is a hierarchical naming system built on a distributed database for computers, services, or any resource connected to the Internet or a private network. It associates various information with domain names assigned to each of the participating entities. Most importantly, it translates domain names meaningful to humans into the numerical identifiers associated with networking equipment for the purpose of locating and addressing these devices worldwide.
Active Directory is majorly depended upon DNS to run smoothly, in fact, DNS is an integral part of Active Directory and for AD to run without any hitch, we need to make sure that DNS is running smoothly.
Dynamic Host Configuration Protocol
DHCP is an auto configuration protocol used on IP networks. Computers that are connected to IP networks must be configured before they can communicate with other computers on the network. DHCP allows a computer to be configured automatically, eliminating the need for intervention by a network administrator. It also provides a central database for keeping track of computers that have been connected to the network. This prevents two computers from accidentally being configured with the same IP address.
In the absence of DHCP, hosts may be manually configured with an IP address. Alternatively IPv6 hosts may use stateless address autoconfiguration to generate an IP address. IPv4 hosts may use link-local addressing to achieve limited local connectivity.
There are two versions of DHCP, one for IPv4 and one for IPv6. While both versions bear the same name and perform much the same purpose, the details of the protocol for IPv4 and IPv6 are sufficiently different that they can be considered separate protocols.
When installing the Windows Server 2003 DHCP service, you can configure the server to perform updates on behalf of its DHCP clients to any Domain Name System (DNS) servers that support dynamic updates.
The DHCP server can be used to register and update the pointer (PTR) and host (A) resource records on behalf of its DHCP-enabled clients.
This process requires the use of an additional DHCP option, the Client FQDN option. This option permits the client to provide its fully qualified domain name (FQDN) as well as instructions to the DHCP server on how it would like the server to process DNS dynamic updates (if any) on its behalf.
When this option is issued by a qualified DHCP client, such as a DHCP-enabled computer running Windows 2000, Windows XP, or a Windows Server 2003 operating system, option 81 is processed and interpreted by a DHCP server running Windows Server 2003/2008 to determine how the server initiates updates on behalf of the client.
