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Basic things about Data Encryption

January 26, 2011

Please click on this link-  Little about Data Encryption

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How to configure Cisco SPAN Ports

January 25, 2011

The following example will demonstrate how to configure a single SPAN session on a Cisco Catalyst switch. The specifics are different between different switch models, so be sure to check the Cisco documentation. You must first configure source ports. Source ports are ports whose data will be copied, and sent to the destination, or SPAN [...]

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NetBEUI

January 24, 2011

NetBIOS, NetBEUI, and SMB are Microsoft Protocols used to support Microsoft Networking. The NetBIOS stack includes SMB, NetBIOS, and NetBEUI which are described in the table below. The following are parts of the Microsoft networking stack: Name Network Layer Description Redirector Application Directs requests for network resources to the appropriate server and makes network resources [...]

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Address Resolution Protocol

January 24, 2011

ARP and RARP Address Translation Address Resolution Protocol (ARP) provides a completely different function to the network than Reverse Address Resolution Protocol (RARP). ARP is used to resolve the ethernet address of a NIC from an IP address in order to construct an ethernet packet around an IP data packet. This must happen in order [...]

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Windows Server 2003 DNS Troubleshooting

January 22, 2011

1) Start Troubleshooting with Ping Can you ping the target machine? a) By IP address. Ping 10.1.0.100 b) By Hostname. Ping BigServer c) By fully qualified domain name. Ping BigServer.guybay.com Examine the replies for clues, for example is the reply BigServer or BigServer.domain.com. Depending on the results from Ping, check the Default Gateway and Subnet [...]

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Little about DNS Queries in Windows Server 2003

January 21, 2011

There are two sides to DNS.  Firstly, registration which adds resource records such as Host (A) into the DNS database.  Secondly there are queries where clients seek those resource records, for example where is BigServer?  Back comes the reply from DNS: BigServer IP = 10.10.55.21. Authoritative DNS Servers The goal of a DNS query is [...]

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DNS Resource Records in Windows Server 2003

January 21, 2011

It all started with Host records.  In the beginning there were just flat text files with a list of servers and corresponding IP addresses.  When that got cumbersome and a pain to update, a proper database called DNS (Domain Name System) was invented by Paul Mockapetris in 1983. Since then the DNS types of records [...]

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Little about DNS Zones in Windows Server 2003

January 21, 2011

When you plan a DNS installation, be sure that you choose the most suitable type of zone.  For instance, if your goal is to install a Windows Server 2003 domain, then investigate Active Directory Integrated Zones.  Also decide how many zones to configure, it is easy to focus on the forward lookup zone, but overlook [...]

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DNS Names in Windows Server 2003

January 21, 2011

Introduction to DNS Names The purpose of DNS is to provide a connection when we type a name.  Now that name could refer to a server, a host, a web site, or a UNC path.  Always remember that computers prefer to use an IP address and that the role of DNS is a database of [...]

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BRI ISDN Configuration On Cisco Router

January 18, 2011

There are two ways to configure ISDN in a Cisco router. The first one is to setup the ISDN connection to be always on. This method will be very costly because most ISDN service providers charge not only by monthly subscription, but by the amount of data that you transfer. Having the connection opened 24/7, [...]

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How to configure EIGRP on your Cisco router

January 18, 2011

Nots: EIGRP is a Cisco proprietary protocol. So, either all the routers in the Internetwork must be Cisco routers, or the routers should be EIGRP capable. Before starting, if you have not set the bandwidth of the interfaces, set them now. For correct routing decisions, you need to set the bandwidth for the serial interfaces [...]

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What is VOIP Network

January 18, 2011

VOIP is simply a transmission of the voice traffic over IP networks. VOIP is a family of technologies, in which IP networks are used for the voice applications and traffic e.g IP telephony, voice chat and teleconferencing. VOIP gives solution at almost every layer of the IP network. The Internet Protocol was developed and designed [...]

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How can i Disable Windows Error Reporting

January 14, 2011

By default, WindowsXP will request to report application errors to Microsoft. To turn this off: Right click on the My Computer icon on the desktop Select Properties / Advanced Click on the Error Reporting tab Check Disable error reporting

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