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NetBIOS Firewall
How many times do you hear network administrators scream at the top of their voice,

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Documents related to » dns firewall


My Network Engineers are Talking about Implementing Split DNS. What Does that Mean?
You have heard that something called split DNS can speed up websites. What does this mean and how does it work?

dns firewall  Misconfiguring one of the DNS servers or the firewall could completely cause your business to grind to a halt and lock out your customers from seeing the website. Be smart and implement split DNS during a scheduled late night change management window. There are almost endless types of DNS configurations, and many types of split DNS configurations. If an engineer tells you that your DNS configuration is not correct be sure to verify this opinion with another knowledgeable person. DNS servers should only Read More...
E-mail 101
The first e-mail programs were created in the late 60s/early 70s—simpler times, when everyone on the network was trustworthy. Even knowing what we know today

dns firewall  a firewall to allow DNS queries over UDP, but block them over TCP. This can result in hard-to-diagnose failures; be sure your firewall is set up to allow DNS queries over both UDP and TCP. DNS always uses the well-known port 53, both for UDP and TCP. 4.1.2 DNS Record Types In addition to returning an IP address given a domain name (a so-called A record), the DNS contains other record types: A PTR record contains the reverse information from an A record. That is, given an IP address, we can determine the d Read More...
Is Something Fishy Happening To Your Website?
Freshwater Software offers powerful solutions for website monitoring. There’s a product or service for every budget and every type of site, and the customer

dns firewall  properly. Network monitors check DNS, individual ports and SNMP devices, and also can ping any server. Server monitors measure the performance of an individual server, including CPU utilization, disk space, network performance, virtual memory, LDAP, individual files and scripts, and a number of other critical indicators SiteScope is administered over a browser. It runs on NT or Solaris systems, and can monitor servers running Linux, HP-UX, AIX, FreeBSD, SGI, and Digital Unix, as well as NT and Solaris. Th Read More...
Microsoft Hopes to Win Over Consumer Privacy Advocates
Microsoft aims to assist users understand privacy issues by embedding privacy agents into its web browser

dns firewall  block ad servers from DNS zone maps, or firewall off TCP port7, which some agencies use to deliver ads to surfers. However, except for some security conscious companies that do not allow any cookie dropping, and a small percentage of surfers who have their own firewalls and know how to use them, we can't imagine such drastic actions being taken in large numbers. Read More...
StoneGate
The StoneGate security platform blends network security and end-to-end availability into a unified and centrally-manageable system for distributed

dns firewall  The StoneGate security platform blends network security and end-to-end availability into a unified and centrally-manageable system for distributed enterprises. The StoneGate Management Center provides role-based administration through a single, centralized management system. StoneGate provides a layered architecture and correlated incident detection and response between firewall and IPS to help reduce response times and errors. Its Internet uptime and performance, gateway and Web server load Read More...
Delivery Architecture - What it Means...
Once we cross the border of the enterprise, traditional enterprise-centric systems fail to provide visibility or a way to understand and act, all in sync with

dns firewall  Architecture - What it Means... Introduction By now we hope you have been reading last issue's articles Remapping the Supply Chain Universe and Mapping the End-to-End Supply Chain Process , as well as this issue's Assessing Supply Chain Performance . These will be prerequisites for understanding the delivery architecture. In those articles we discussed the externalization of the business process—across multiple enterprises, and the challenge in managing your three Ps (supply chain policy, Read More...
6 Immediate Business Improvements Offered by an Online SRM System: Part 3: Other Points to Consider
Maintaining an effective supply chain is clearly an integral part of a manufacturing company’s livelihood. Using Web-enabled tools, the enterprise is able to

dns firewall  Immediate Business Improvements Offered by an Online SRM System: Part 3: Other Points to Consider Other Points to Consider Other points to consider when choosing an online SRM system are: Customization Financial Commitment Speed of Implementation Ability to Integrate with Existing ERP Security This is Part Three of a three-part article. Part One presented the supplier relationship activities. Part Two presented the six immediate business improvements provided by an online SRM system. Customization Each Read More...
EAI - The 'Crazy Glue' of Business Applications
When companies create or change trading relationships or when they swap out business application systems, information systems professionals are required to

dns firewall  - The 'Crazy Glue' of Business Applications The Promise of EAI Plug and Play business application system integration is the goal of investment in EAI technology. Buyers have a number of applications from various suppliers and a number of external trading partners with whom they want to exchange business transactions. EAI suppliers promote products that connect to a diverse set of applications (Adapters) transform data format, structure and content (Transformation Capabilities), move data among applicati Read More...
DSL Provider Scoops up Netscreen Firewall Goldmine
In a $905million exchange of stock, Efficient Networks has acquired a more than efficient security solution with its acquisition of the Netscreen line of

dns firewall  Provider Scoops up Netscreen Firewall Goldmine DSL Provider Scoops up Netscreen Firewall Goldmine L. Taylor - April 20th, 2000 Event Summary In a $905million exchange of stock, Efficient Networks (Nasdaq: EFNT) acquired firewall appliance vendor Netscreen Technologies, a privately held company based in Santa Clara, California. Efficient Networks is a developer and supplier of Digital Subscriber Line (DSL) equipment and technology. Incorporated in Dallas, Texas, Efficient Networks first issued an IPO Read More...
In-house vs. Managed Services: 4 Key Questions You Need to Ask
Installing software and patch updates can be frustrating and time-consuming for IT staff and users alike. But it's critical to update your computers regularly

dns firewall  house vs. Managed Services: 4 Key Questions You Need to Ask In-house vs. Managed Services: 4 Key Questions You Need to Ask If you receive errors when attempting to view this white paper, please install the latest version of Adobe Reader. Since 1986 CommNet International has provided Technology Solutions to businesses throughout the Tri-State Area. CommNet’s expertise to help your business is focused in 4 areas: Project Services, Managed Services, Computer products at competitive prices, Management Read More...
With Record Revenues, AXENT Puts Down a Solid Fist
Cybercrime and information security attacks are not going to go away. AXENT's three protection products, Intruder Alert, Raptor Firewall, and NetProwler contain

dns firewall  Record Revenues, AXENT Puts Down a Solid Fist With Record Revenues, AXENT Puts Down a Solid Fist L. Taylor - July 6, 2000 Vendor Genesis Rockville, Maryland based AXENT Technologies Inc. has been seeing steady increases in revenue and solid sales in its line of security products for the last several years. Growing at a rate of 45% in 1998, AXENT exceeded $100 million in revenue. In 1999, their total net revenue exceeded $112 million. AXENT develops, licenses, markets, and supports, computer security Read More...
Analysis of Novell's Announced Support for Sun's Solaris 8 Operating Environment
We do not see Sun Solaris administrators implementing any Novell NDS package.

dns firewall  eDirectory. With Sun's robust DNS and LDAP enabled system, we fail to see the advantages of implementing NDS on Sun. Furthermore, any mail system running on a Sun Solaris server will most likely be performing one or two functions, routing and hosting. Sendmail, Inc. has a very strong foothold on the UNIX mail market with a lion's market share of 75%. Sendmail will also be expanding its current offering through strategic partnerships with messaging vendors within the Unified Messaging (UM) space. If UNIX Read More...
DNS/DHCP High Availability
The Domain Name System (DNS) and Dynamic Host Configuration Protocol (DHCP) have become mission-critical services as the Internet and other Internet protocol

dns firewall  DHCP High Availability The Domain Name System (DNS) and Dynamic Host Configuration Protocol (DHCP) have become mission-critical services as the Internet and other Internet protocol (IP)-based networks become business necessities. Services like IP telephony are intolerant of down-time—they require “dial tone” reliability and a solution that enables them to remain available despite any of the unforeseen circumstances that can incapacitate a server. Read More...
Adonis: DNS/DHCP for Small to Medium Sized Business
Small to medium businesses have typically built their own domain name system (DNS) and Dynamic Host Configuration Protocol (DHCP) services, used Windows DNS

dns firewall  DNS/DHCP for Small to Medium Sized Business Small to medium businesses have typically built their own domain name system (DNS) and Dynamic Host Configuration Protocol (DHCP) services, used Windows DNS/DHCP, or turned to a hosted service provider for these services. This approach may appear to offer tremendous savings, but contains many hidden costs and risks that are not always apparent until a catastrophic loss of service occurs. Read More...

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