http://bucarotechelp.com/networking/support This section contains information about computer network troubleshooting and support. en-us Thu, 26 Apr 2012 18:42:52 GMT http://bucarotechelp.com/networking/support/support.xml http://bucarotechelp.com/networking/support/88080401.asp A Denial of Service Attack is when a hacker attempts to consume such a large amount of a server's resources that it's services will be unavailable to its intended users. For example a DoS attack against a web server attempts to prevent it from serving web pages to legitimate Internet clients. Thu, 26 Apr 2012 18:42:52 GMT http://bucarotechelp.com/networking/support/88081902.asp "Most organizations use both IDS and an IPS. The IPS automatically blocks attacks where it is accurate, while the IDS logs and notifies network administrators of suspicious activity so they can use their judgment as to what countermeasures to take. Wed, 11 Apr 2012 19:18:25 GMT http://bucarotechelp.com/networking/support/88082803.asp Nessus is a network vulnerability scanning program that scans network hosts for vulnerabilities and generates reports on its findings. Mon, 02 Apr 2012 19:38:16 GMT http://bucarotechelp.com/networking/support/88082801.asp What happens if a major fiber optic cable is cut or a major hubbing location is destroyed? This article is about the survivability of a well designed fiber network. Mon, 02 Apr 2012 18:08:46 GMT http://bucarotechelp.com/networking/support/88090401.asp When hackers attempt to gain unauthorized access to a computer on the Internet the first things they do is look for open ports. NMAP is a free and open source port scanner that hackers can use to automate the process of finding open ports to attack. Tue, 27 Mar 2012 14:43:14 GMT http://bucarotechelp.com/networking/support/88090504.asp A HoneyPot is a storage area on a network that has fake confidential and valuable data used to trick hackers. Mon, 26 Mar 2012 19:36:00 GMT http://bucarotechelp.com/networking/support/88091901.asp Filtering allows network administrators to control which packets are permitted or denied in or out of a network. It can be used to control how much bandwidth can be used by parts of a network, but is more often used to provide security for a network. Mon, 12 Mar 2012 16:42:19 GMT http://bucarotechelp.com/networking/support/88100904.asp A firewall can detect specific application protocol content and filter out any applications that exhibits certain characteristics. A proxy server sits between hosts and server that filters requests by checking IP Addresses, Protocol and application content. Mon, 20 Feb 2012 23:41:34 GMT http://bucarotechelp.com/networking/support/88100903.asp During fiber optic network maintenance it is often necessary to identify a specific fiber without disrupting live service. A fiber identifier allows you to do this. Mon, 20 Feb 2012 20:39:59 GMT http://bucarotechelp.com/networking/support/88102302.asp A fiber optic cable tester is a hand-held troubleshooting device that sends red laser light down a fiber to check for faults such as cracked fibers or defective splices. Mon, 06 Feb 2012 17:10:00 GMT http://bucarotechelp.com/networking/support/88102602.asp Structured Cabling System is a generic communication wiring scheme that is installed in buildings that is able to support all types of communication systems including: telephone systems, computer LANs, video systems, imaging systems and more. Structured cabling system is also called premises distribution system. Fri, 03 Feb 2012 18:56:12 GMT http://bucarotechelp.com/networking/support/88102702.asp What do you need in a fiber optic tool kit? There are kits for epoxy and polishing connector termination, quick connector termination, fusion splicing, mechanical splicing, optic cleaning, fiber optic testing, and many more. Thu, 02 Feb 2012 17:04:31 GMT http://bucarotechelp.com/networking/support/88111402.asp Adding a network printer to your home or small office can seem like a daunting task. In this article I cover the basics of installing a wired or wireless network printer on one, or multiple computers in three simple steps. Tue, 17 Jan 2012 16:21:45 GMT http://bucarotechelp.com/networking/support/88111401.asp With today's high speed networks, people realize that the networking system must be broken up into shorter chunks for that reason structured wiring standard has been developed. Tue, 17 Jan 2012 15:19:19 GMT http://bucarotechelp.com/networking/support/89001002.asp Most network devices, like switches and routers, are capable of generating a log of events, called a syslog. It can be difficult to sift through the volume of logged messages therefore several company's have created utilities called syslog servers to search, sort and group messages and provide other useful features. Wed, 21 Dec 2011 22:06:47 GMT http://bucarotechelp.com/networking/support/89001001.asp In many cases, backbone cabling is between wiring closets on the same floor of a building, but it may be the floor to floor wiring in a multi-floor building, or between buildings on a campus. Wed, 21 Dec 2011 17:29:52 GMT http://bucarotechelp.com/networking/support/89112701.asp This article discusses how to secure your home and business wireless network. The process of a client associating and authenticating to an access point is standard. The security requirements vary from a home network, small business network and government departments requiring stringent network security. Tue, 4 Jan 2011 16:57:08 GMT http://bucarotechelp.com/networking/support/90000201.asp This article discusses some of the main components of any enterprise network Disaster Recovery Plan. Disaster Recovery Planning (DRP) starts with a discussion that involves key management employees. It is important to get their support with any disaster recovery initiative. Wed, 29 Dec 2010 17:13:28 GMT http://bucarotechelp.com/networking/support/90000801.asp Enterprise companies today employ firewalls that inspect sessions between external and internal hosts and devices. The firewall filters traffic by examining the source and destination IP addresses, application port and protocol port before making a decision whether to permit or deny a session or specific traffic. Thu, 23 Dec 2010 14:21:03 GMT http://bucarotechelp.com/networking/support/90011201.asp The process of troubleshooting your network if it has wireless components is somewhat more complex than wired infrastructure. In fact you must troubleshoot both wired and wireless infrastructure to determine the problem. Thu, 18 Nov 2010 16:52:06 GMT http://bucarotechelp.com/networking/support/90012601.asp The network planning and design methodology describes a process with nine specific steps and a sequence for those activities. It is an engineering life cycle that supports technical initiatives such as Windows migration, IP telephony and wireless design. The methodology begins with examining company business requirements. Thu, 4 Nov 2010 17:02:20 GMT http://bucarotechelp.com/networking/support/90020501.asp This article will define a network management strategy for managing the network. It is necessary to define how the equipment is going to be monitored and determine if the current management strategy is adequate or if new applications, equipment, protocols and processes must be identified. Tue, 26 Oct 2010 19:14:55 GMT http://bucarotechelp.com/networking/support/90020601.asp These are the five primary security groups that should be considered with any enterprise security model. These include security policy, perimeter, network, transaction and monitoring security. These are all part of any effective company security strategy. Mon, 25 Oct 2010 18:51:58 GMT http://bucarotechelp.com/networking/support/91112701.asp RAID is simply an acronym that stands for Redundant Array of Independent (or Inexpensive) Disks. RAID generally allows data to be written to multiple hard disk drives so that a failure of any one drive in the array does not result in the loss of any data, as well as increasing the system’s fault tolerance. Wed, 13 May 2009 18:14:36 GMT http://bucarotechelp.com/networking/support/92102301.asp The steps below are general Ethernet Cat 5 cable construction guidelines. For our example, we will be making a Category 5e patch cable, but the same general method will work for making any category of network cables. Wed, 13 May 2009 18:14:36 GMT http://bucarotechelp.com/networking/support/94041403.asp If you use a wireless network, chances are good it is not secure. If you don't make some important configuration changes on your wireless router after installing it, your wireless network is wide open to hackers, curious neighbors and people who would rather use your broadband internet service instead of buying their own. Wed, 13 May 2009 18:14:36 GMT http://bucarotechelp.com/networking/support/94042802.asp when shopping for rack mount cabinets you will see references to cabinets like 10u, 12u, 25u and so on. So what does all of this mean? All computer heights are measured in units called "U's". In the world of computers, when referring to the height of a computer, 1 "U" equals 1.75 inches. Wed, 13 May 2009 18:14:36 GMT http://bucarotechelp.com/networking/support/94092501.asp With a small network of a few work stations that is not expected to grow, you might get away with just "winging" the cable installation, but the installation of a serious computer network needs a plan. without a plan your network will be prone to frequent failures and will be difficult to expand. Wed, 13 May 2009 18:14:36 GMT http://bucarotechelp.com/networking/support/94102501.asp Before the IEEE completed the 802.11i standard the Wi-Fi Alliance released WPA. After the release of the IEEE 802.11i standard, the Wi-Fi Alliance released WPA2 which is compatible with both the 802.11i standard and WPA. Wed, 13 May 2009 18:14:36 GMT http://bucarotechelp.com/networking/support/94111101.asp There are two kinds of key encryption: private key and public key. In private key encryption a single key is used. Public key encryption uses two keys. One key, called the private key can only be used to decrypt a document. The other key, called the public key, can only encrypt a document. Wed, 13 May 2009 18:14:36 GMT http://bucarotechelp.com/networking/support/95001601.asp If your network is compromised, identity thefts could use your company's customers credit card numbers and social security numbers to destroy their lives. And it's not only your company's customers who are going to suffer. When the source of the security breach is traced to your company, the result will be a negligence lawsuit. Wed, 13 May 2009 18:14:36 GMT http://bucarotechelp.com/networking/support/95091702.asp A firewall provides security by controlling access between a network and an untrusted network. A firewall can be a hardware device, software, or combination of hardware and software. Wed, 13 May 2009 18:14:36 GMT http://bucarotechelp.com/networking/support/96002501.asp Imagine a large corporation with millions of dollars of data stored on their network. A fire causes massive data loss. How much work would be required to re-create the lost data? Without backups, the company may not survive the disaster. Wed, 13 May 2009 18:14:36 GMT http://bucarotechelp.com/networking/support/97052510.asp When you receive a call for technical support, you need to log the problem as you receive the call. To prioritize a problem you need to assess the seriousness of the problem and what impact it has on the network. Wed, 13 May 2009 18:14:36 GMT http://bucarotechelp.com/networking/support/97052900.asp The most boring, but also the most important task of a network administrator is documenting the network. Documenting your network can save you an enormous amount of time and money. Wed, 13 May 2009 18:14:36 GMT http://bucarotechelp.com/networking/support/97052910.asp It is important to create a backup procedure for your network. The backup procedure should define a schedule and the type of backups that will be created. Each backup disc or tape should be clearly labeled and recorded in a log. Wed, 13 May 2009 18:14:36 GMT http://bucarotechelp.com/networking/support/97053000.asp The installation of a new network can be divided into three phases. Design, implementation, and troubleshooting. The first and most important phase in a new network installation process is the design phase. Wed, 13 May 2009 18:14:36 GMT http://bucarotechelp.com/networking/support/97060400.asp In the traditional LAN, all the computers are connected together by a cable. People who want to work at home or need access to the company's data from a customer's office need access to the LAN. Wed, 13 May 2009 18:14:36 GMT http://bucarotechelp.com/networking/support/97060410.asp Network security starts with physical security. Network components such as servers, hubs, and routers should be located in a secure equipment room. Part of physical security is protecting your cable plant from damage and electronic eavesdropping. Wed, 13 May 2009 18:14:36 GMT