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How to define remote office structure to simplify branch IT management
Individual branch offices often become islands from the perspective of a corporate wide area network (WAN) manager. This can be overcome by implementing a model that organizes branches into a manageable structure. Branch IT management can be tricky. ... e-Book Chapter
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How to implement Wireshark filters
To set up Wireshark filters, you must learn how to establish both Wireshark capture filters and Wireshark display filters that meet your specific network traffic monitoring needs. In this video on Wireshark filtering, learn step-by-step how to perfor... Videos
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Server-side antispam solutions
Part six in our nine-part series on managing spam. Book Excerpt
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Microsoft users share security blame
People like to blame Microsoft for their security issues, but Information Security's executive editor Lawrence M. Walsh argues that users need to share some of that responsibility. Perspective
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Wi-Fi Security - Chapter 4
This chapter presents an assessment of wireless security with focus on the effective response to three primary issues. Reprint
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Replacing your T1 with nothing but air
If your company could have T1 service without paying to install the T1 line, wouldn't it be a no-brainer? If Worldwide Interoperability for Microwave Access Inc., or WiMax Forum, has its way, that very scenario may become reality in just a few years.... Interview | 01 May 2003
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Titans of IM duke it out for enterprise supremacy
The "Big Three" instant messaging vendors are getting warmed up for a fierce competition to make their software best in class, as IM becomes transformed into a mainstream business application. Analysts and other experts outline the strengths and weak... Article | 04 Mar 2003
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Edge virtualization technologies solve virtual network switch woes
Virtual network switches have posed serious problems for networking pros, but network edge virtualization technologies, including distributed virtual switches, may be what makes manageability possible in networking for virtualization. Tip
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Practicing network management vs. crisis management1
Effectively managing a network means obtaining accurate, objective, and pertinent metrics before you make any decisions, especially decisions to spend money. Tip
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E-mail firewall
Learn how an e-mail firewall appliance can streamline security management for inbound messaging streams while contributing to defense-in-depth. Tip
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Spam: The new network drain
In this column, site expert Carrie Higbie offers amusing alternatives for the word 'spam' and then offers up some serious advice for getting a handle on the real deal. Tip
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Telephony purchase ABCs for SMBs1
Learn how small and mid-sized businesses can successfully evaluate and select telephony systems. Tip
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Guide to voice over IP
Here's your one-stop guide for information on voice over IP. Tip
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Understanding certifications and technical interviewing
In today's world of increasing technology and vendor certifications, how do you determine if someone is a paper professional? This column shows you what you need to know. Tip
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The importance of securing backup and restore networks
The importance of securing the backup and restore networks Tip
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Should you use a voice VLAN1
Advantages and disadvantages of using a voice VLAN. Tip
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Network security with foreign network cards
Security expert Michael Gregg fields a question about unknown network cards gaining access to a user's network. Ask the Expert
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Mobile device threats to enterprise security
Security expert Michael Gregg notes the risks to enteprise security that mobile devices may cause. Ask the Expert
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Interfaces on Snort
Expert Michael Gregg answers a reader question about Snort and the interfaces it uses. Ask the Expert
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Wireless access for mall kiosk
Wireless expert Lisa Phifer answers a question on how to connect wired networked devices to a mall's wireless access. Ask the Expert
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Hunting down the source of a wireless attack
A wireless intrusion prevention system (WIPS) can notify you in the event of an attack on the wireless attack, but might only give an approximate location of the attacker. Wireless expert Lisa Phifer gives advice on some tools to track down the sour... Ask the Expert
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What is RSSI?
Ask the Expert
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Troubleshooting wireless connection
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How do you pronounce UNII?
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Setting up mobile workers on the local office network
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Setting up WLAN for a student hall (40 simultaneous connections)
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Wide Area Application Services (WAAS)
Wide Area Application Services (WAAS) is a Cisco Systems technology that improves the performance of applications on a wide area network (WAN). (Continued...) Definition
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Power over Ethernet (PoE)
Power over Ethernet (PoE) is a technology for wired Ethernet LANs (local area networks) that allows the electrical current necessary for the operation of each device to be carried by the data cables rather than by power cords Definition
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OSGi (Open Service Gateway Initiative)
OSGi (Open Service Gateway Initiative) is Java framework for developing and deploying modular software programs and libraries. Definition
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loose coupling
Loose coupling is a method of interconnecting the components in a system or network so that those components, also called elements, depend on each other to the least extent practicable... (Continued) Definition
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AARP (AppleTalk Address Resolution Protocol)
AARP (AppleTalk Address Resolution Protocol) is a way to map between the physical hardware addresses of computers, such as those known to an Ethernet or token ring local area network, and their temporarily assigned AppleTalk network addresses. Definition
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modem lights (AA)
This page provides a description of the abbreviations and meanings of each of the lights that describe the "handshaking" between a computer modem and the UART chip in a computer. Definition
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Multichannel Multipoint Distribution Service (MMDS)
Multichannel Multipoint Distribution Service (MMDS) is a broadcasting and communications service that operates in the ultra-high-frequency (UHF) portion of the radio spectrum between 2.1 and 2.7 GHz. Definition
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traffic shaping (packet shaping)
Traffic shaping, also known as 'packet shaping,' is the practice of regulating network data transfer to assure a certain level of performance or quality of service (QoS) for some applications or users or to increase available bandwidth for some o... Definition
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device relationship management (DRM)
Device relationship management (DRM) is enterprise software that enables the monitoring, managing, and servicing of intelligent devices over the Internet. Definition
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fiber to the curb (FTTC)
Fiber to the curb (FTTC) refers to the installation and use of optical fiber cable directly to the curbs near homes or any business environment as a replacement for "plain old telephone service" (POTS). Definition
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Wide Area Application Services (WAAS)
Wide Area Application Services (WAAS) is a Cisco Systems technology that improves the performance of applications on a wide area network (WAN). (Continued...) Definition
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Power over Ethernet (PoE)
Power over Ethernet (PoE) is a technology for wired Ethernet LANs (local area networks) that allows the electrical current necessary for the operation of each device to be carried by the data cables rather than by power cords Definition
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OSGi (Open Service Gateway Initiative)
OSGi (Open Service Gateway Initiative) is Java framework for developing and deploying modular software programs and libraries. Definition
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loose coupling
Loose coupling is a method of interconnecting the components in a system or network so that those components, also called elements, depend on each other to the least extent practicable... (Continued) Definition
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AARP (AppleTalk Address Resolution Protocol)
AARP (AppleTalk Address Resolution Protocol) is a way to map between the physical hardware addresses of computers, such as those known to an Ethernet or token ring local area network, and their temporarily assigned AppleTalk network addresses. Definition
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modem lights (AA)
This page provides a description of the abbreviations and meanings of each of the lights that describe the "handshaking" between a computer modem and the UART chip in a computer. Definition
-
Multichannel Multipoint Distribution Service (MMDS)
Multichannel Multipoint Distribution Service (MMDS) is a broadcasting and communications service that operates in the ultra-high-frequency (UHF) portion of the radio spectrum between 2.1 and 2.7 GHz. Definition
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Network security with foreign network cards
Security expert Michael Gregg fields a question about unknown network cards gaining access to a user's network. Ask the Expert
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Mobile device threats to enterprise security
Security expert Michael Gregg notes the risks to enteprise security that mobile devices may cause. Ask the Expert
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Interfaces on Snort
Expert Michael Gregg answers a reader question about Snort and the interfaces it uses. Ask the Expert
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Network Management Strategies for the CIO