What are the advantages of broadband VPN? There are several advantages associated with broadband VPN. These include: Bonding DSL – one of the main advantages of using a broadband VPN through Managed Communications is the ability to bond ADSL at multiple office locations to deliver a point to point connection. This broadband VPN solution offers resilience as well as increased broadband capacity for downloading at both sites. Reduced cost of internet breakout – another advantage of a broadband VPN is that it cuts the cost of internet breakout. Typically, a point to point leased line requires at least one additional internet connection. If the network contains many sites, internet breakout can become very expensive. If traffic is backhauled over leased lines to save costs on internet access, you need to route that traffic through the point to point link. This reduces the available bandwidth for other applications. With a broadband VPN, you can manage internet breakout cost effectively on a site by site basis without reducing available bandwidth for applications. Get an excellent service level agreement (SLA) – with an ADSL VPN from Managed Communications, you get a private network and negate the need for leased line internet breakout. But importantly you also get a 99.9% SLA so you can be totally confident about the level you will receive. Get expert advice and keep track of the latest technological breakthroughs – our engineers are experts in Cisco VPN, Checkpoint VPN and Netscreen VPN hardware. And with their years of knowledge and experience in the field, you know that you will be getting the best possible outcome for your business. Nobody knows more about VPN networks than Managed Communications. Can I use SDSL in the VPN? Yes. SDSL is commonly used in the VPN solutions we provide, making Managed Communications a great fit for companies that upload large amounts of data on a regular basis. If your business operates in the creative sector, regularly updates websites or stores a lot of data in the cloud, an SDSL VPN network could save you time and money. However, the VPN networks at Managed Communications are not merely limited to SDSL. Ethernet, traditional leased lines, ADSL and SHDSL can also be used in the VPNs that we provide to individuals and businesses. Can I use a broadband VPN as an alternative to a leased line? Yes. A broadband VPN from Managed Communications is often used to replace leased lines. You get up to 13 static IPs, a 99.9% SLA and a secure private network. This means that you can enjoy a solution that combines the best of both worlds – a high level of performance approaching that of a leased line with surprisingly low operating costs. Is your VPN service secure? Yes. You will be able to benefit from a totally private UK wide VPN infrastructure when you access the Managed Communications VPN service. This private network architecture is a vital component of our secure and reliable VPN solutions. The carrier grade 3DES technical architecture combined with layered IP technology allows you to obtain very secure inter-site connectivity solutions using either SSL VPN orIPsecVPN. Are all charges included in the managed VPN solution? Yes. Moves, additions and changes are always included in the price of the managed VPN service. You also get a fully maintained and monitored VPN service. You don’t have to worry about optimising the performance of the VPN network. A dedicated team of highly skilled IP engineers make sure that your VPN is working at optimum performance levels at all times. Rest assured that your VPN service is pro-actively monitored on your behalf to maintain link and bandwidth throughput availability. Can you provide managed VPN solutions that incorporate overseas offices? Yes. If you operate overseas then we can incorporate your foreign sites into the secure SSL VPN or IPsecVPN infrastructure. Can I use bonded ADSL or load balanced ADSL as part of a managed VPN solution? Yes. You have the market leaders in bonding ADSL and SDSL on your side when you choose a Managed Communications VPN network. Bonding DSL services is a technically challenging process to say the least so you should always pick a supplier with care. By joining forces with Managed Communications, you will be in the company of a host of hugely respected institutions including the NHS, several UK police forces and blue-chip firms. Find out for yourself what they already know – that a VPN network is a major advantage for any organisation. Is it true that I can connect lots of sites into the VPN network? Yes. You can connect as many sites into the private VPN as you require. There is no restriction on either the number of sites that can be connected or the type of connectivity that can be deployed at each individual site. You can also choose between broadband or MPLS VPN technology. Can I connect my remote staff into my office systems over a VPN? Yes. You can securely connect sales staff, directors and other remote workers into your head office systems. A popular and cost effective option is to bond several DSL circuits at head office to enable the upload performance required to support multiple remote staff at locations around the UK. Customers have an impressive choice of Cisco VPN, Checkpoint VPN and Netscreen VPN hardware. Can I run VoIP over a managed VPN? Yes. You can choose to run voice over MPLS VPN or over a broadband VPN. 1:1 contention levels, 99.9% SLA, up/downstream QOS and advanced traffic routing mean that Managed Communications VPN services are an ideal choice for running VOIP
Security is a multifaceted issue that must be addressed to avoid abuse of your network from hackers and employees. While you are connected to the Internet your network is open to the public unless it is protected by a firewall. Networks that are connected to the Internet are vulnerable to malicious attacks from hackers and virus infection. A well configured firewall will block uninvited visitors whilst allowing remote access to authorised users and services. Many firewalls now offer a host of other advanced features such as gateway antivirus, spam filtering, content filtering and the ability to block specific applications such as instant messaging to add further protection and restrict how the Internet is used within the office. Internally, sensitive information such as personnel records, management reports and accounts data can be protected by configuring permissions that only allow access for those who are authorised. Passwords to access the network should be changed on a regular basis and should be sufficiently complex that they cannot be compromised. We can advise on all aspects of network security, firewalls, virus protection and implement a security policy to protect your data and systems.
Exam Number/Code : JN0-304Exam Name : M-series, Specialist (JNCIS-M)Questions and Answers : 225 Q&AsUpdate Time: 2010-08-09 1. Routers A and B have an OC12c and a GE link between them and are running OSPF over both of these links. Which statement is correct, assuming the default JUNOS software OSPF metric calculation? A. There are two equal cost paths between A and B.B. The GE link is the preferred path between A and B.C. The OC12c link is the preferred path between A and B.D. Manual metric assignment must be configured to determine the outcome. Answers: A 2. What is the default function of a secondary path in MPLS?A. to act as an equal-cost path to the primary pathB. to enable another LSP for load balancingC. to act as a diverse backup path to the primary pathD. to allow the use of explicit path selection via EROs Answers: C Juniper Networks JN0-304 exam will attract all of the organizations. JN0-304 certificate are those engaged in IT industry’s dream. You need to choose the professional training by Visualexams JN0-304. Visualexams will be with you, and to ensure the successful wherever you may increase pursuit your career. Let Visualexams.com take all your heart, let the dream to reality! Join the free braindump and JN0-304 exam braindump community by contributing to existing JN0-304 brain dumps by suggesting explanations, possible solutions and answers, and of course by submitting your own content to be used by others. Who knows, your JN0-304 exam dump could make it into one of our JN0-304 Master Dumps! You get quality JN0-304 exam information from reliable IT community members who have already passed their JN0-304 exam and are using Juniper Networks technologies on a daily basis. Use their free brain dumps to advance your own career and then help those who come behind you by creating a new JN0-304 questions and answers sample tests with what you find most valuable as a successful and passing Juniper Networks JN0-304 exam student.
Public wifi networks – you find them at airports, coffee shops, and even at fast food restaurants. Public networks don’t have to be wireless. Hotel networks are often wired, but they are public, and the same precautions apply. You never know who else is on the network capturing your traffic. Are public networks safe? What can you do to protect yourself? First, know the risks. There are three ways others can steal your data or compromise your privacy when you are on a public network. The first one is old-school and low-tech (or even no-tech). Someone who wants to steal your passwords or just see what you are up to can simply look over your shoulder (it is called shoulder-surfing). There is a more advance version, though. It involves a small video camera strategically positioned to record what others are doing – sometimes from a distance of several meters. Watching the display and playing back video of the keystrokes while entering passwords can be an effective attack. In a crowded place, and with the right equipment, this is easier than you might think. The second one is simply capturing the traffic that you are broadcasting through the air (that’s why it’s called wireless, you know) and analyzing it later for passwords, etc. Many public networks are open (all the traffic is in “plaintext” and can be read) or use shared passwords (if you all have the same password, it is more or less the same as an open network). Assume any password given to you by someone else is not secure, since you have no way of knowing who else may know it. The third one is a little more difficult, but not much. Anyone can pretend to be a free wifi access point. It just takes a little configuration on a laptop to set up a network that others can connect to. The attacker calls it “Free Public Wifi” and then connects any victims who fall for the trick to a real public network. The victim surfs happily, but the attacker is recording everything. Ouch! That sounds dangerous. What can you do to avoid being the victim? Here are five tips: Avoid doing sensitive work when on a public network. Do you really need to check you stocks or your bank account from the hotel or the coffee shop? Only do this when it is really necessary. Look around. Be aware of your surroundings. Lean over the keyboard when typing passwords. Sit with your back toward the wall. Don’t make it easy for others to see what you are doing. Know what you are connected to. Make sure you know the name (also referred to as the SSID) of the network you want to use. Beware if you see a duplicate or similar name. Avoid unknown networks. In addition, your laptop should be configured to connect to “access points” only (also known as infrastructure mode). Do not allow your computer to connect directly to other computers (also known as ad-hoc mode).On a Macintosh, go to System Preferences > Network > Advanced and made sure “Create computer-to-computer networks is not checked. On Windows, double-click the wireless adapter icon > click the “Wireless Networks” tab > click the “Advanced” button, and make sure that “Access point (infrastructure mode) networks only” is selected. Learn about https. In the address bar of the browser, the address starts with either http:// or https://. The “s” stands for secure. In this mode, all the traffic to and from your computer is encrypted and cannot be read by anyone else – even if they record it and analyze it later. Any sensitive information should ONLY be sent over an https connection. A word of caution, though – if you are tricked into making a https connection to an attacker, they will be able to read what you send. You must be SURE you know who is at the other end of the https connection. If you receive an error about a “certificate” when on a public network, DO NOT ignore it. You may be about to become a victim. Checking email? Remember that even though you may sign in to your account using https, the mail is usually sent over http, in cleartext. The exception is Gmail, which defaults to https for everything. It is the most secure email service for use in public locations. If the last two tips sound a bit complicated – well, they are. The good news is that you can skip them both if you want and just go to tip number five. Use a VPN or a secure connection service. If you really want to be safe, use a VPN or a secure connection. With a VPN, your computer does not connect directly to the internet. Instead, it makes a completely secure (encrypted) connection to some other computer, which then connects to the internet from a non-public network. There are free versions and paid versions with more advanced features. You install these on a home or office computer, but you may have to do some configuration of your home or office router to make it all work. There are also secure services that work the same way, except that their servers establish the actual connections to the internet. They are usually easier to configure. Again, some are free, and some are paid subscription services. You see, computing from a public location can be safe. The first and second tips are just good, common-sense ways to avoid unnecessary risks. The second and third tips are a bit “nerdy”, but good safety practices. Tip number five is the easiest, and nearly bullet-proof, as long as you also follow tip number two. You don’t have to spend money, but spending a little may get you some added speed, convenience, and features. Use your head (to block the view of the keyboard when typing passwords, that is), pay attention, and be safe. Dennis Houseknecht Nerds On Site – virtually everywhere www.nerdsonsite.com
Mobile operators have made substantial investments in legacy protocols. Third generation (3G) data networking have brought carriers into the IP world and fourth generation (4G) data will require an all-IP backbone. Though a considerable amount of knowledge about IP has been accumulated within mobile operators, their IP investment is relatively young when compared to both IP itself and their respective legacy protocols and infrastructure. This report targets primarily network design teams within mobile operators and assumes that the reader has a good understanding of IP protocols and related technologies; it addresses most, if not all, of the problems and questions that such teams will face while evolving a legacy backbone into an all-IP one. More specifically, the following subjects are addressed: – Optimizing an IP network for use as a backbone for a mobile operator: Not all IP networks can deliver either the functionality or the critical level of performance that a mobile backbone requires. This section focuses on the elements that should be fine-tuned and modified so as to produce the desired behavior. – MPLS Traffic Engineering as a method to maximize the ROI and effectively utilize all available resources within the network. The benefits that pseudo-wires (PWE3) introduced. – OSS/NMS enhancements to support the new functionality – VoIP – migrating from a circuit switched voice transport into VoIP transport: Market, Research, Report, Business, Industry, Information, Automotive, Banking, Finance, Food, Beverages, Technology, Biomass, Books, Conference, Company Profiles, Country For more information please contact : http://www.aarkstore.com/reports/Mobile-Networks-Evolving-to-all-IP-backbone-2nd-edition-38959.html http://blogs.aarkstore.com/ From:Aarkstore Enterprise Contact: Neel Email: press@aarkstore.com http://www.aarkstore.com PushpanjaliMarketing Managercontact@aarkstore.com http://www.aarkstore.comhttp://blogs.aarkstore.com
