Network Protection

Smith Jolene asked:


Network security is to secure both public and private computer networks, used every day to conduct transactions among businesses and individuals. Any business related to IT network system needs to make sure to establish a strong, secure network for their data and systems. There is an increasing need to secure your networks within organizations. To achieve network security, all requirements have to be met to use networks securely.

Organizations spend a large amount of their business on IT network security. It is necessary that networks themselves have the appropriate levels of security. An effective and valuable network security strategy requires identifying the threats and choosing most effective tools to struggle them. Email security management and Antivirus security are effective services in keeping a critical data and communications safe from intruders or attacks and other threats to security.

Email security management

Email viruses through harmful attachments in the emails can reach your system and infect it. Email security management helps to stop unwanted materials and reduce spam in emails. It also provide message tracking capabilities in order to follow e-mails for troubleshooting and auditing purposes. It also helps in examining the security threats facing your corporate email system. Email security management gives you the reliable email security performance and safeguards your important emails against all threats.

Antivirus security

With an increase in attacks and viruses on the internet, antivirus security software programs have become a need of every hour. Antivirus security software makes your online surfing, searching and chatting safe. Antivirus security protects your business networks from web threats such as viruses, spyware and all types of malware that can threaten your valuable personal information.

Benefits of Network Security Management

There are number of important benefits of purchasing network security management services as it better to safe your networks than any damage by deadly viruses and attacks.

·           It improves IT security and effectively manage all network security program.

·           Disclose any weakness in your network, server and desktop infrastructure.

·           Identify the solutions to integrate the networks within existing environments.

·           Network Security provider also supply firewall with reputation-based global intelligence. Firewall blocks traffic coming from and going to the internet.

·           Make safer, easier and more convenient for computer users to access their network from remote locations.

·           Helps in enhancing system security for sensitive data.

·           Regularly audits security efforts with comprehensive system.

·           Without network security, anybody can hack files or data from the organization network.

·           It reduces overall information security risk.

Select best Network Security Management Services

To avoid threats, even small and medium sized business prefers to get managed network security services. Without reliable network management services, company would find it difficult to prevent any attack from happening. With the help of reliable and cost effective network management services, you can safeguard your network against such attacks and malicious intrusions. While choosing network security management services, you need to look for several capability areas. First, should select custom made solutions for your business. Second, network management services should maintain the integrity of your network. Third, should be able to provide 24/7 technical and troubleshooting support. The company or business can surely benefit from expertise and solutions of network management services.

Fiverivers provide cost effective network security management so that you can budget your protection and productivity with no surprises. Our network security management identifies the most critical information assets and network nodes. With our security service you no longer have to worry about any type of threats or attacks. We provide 24/7 network security management services.

Author info:

Smith Jolene is writing articles for fiveriverssupport that provide Network security management to secure your systems network. This includes Email Security Management services and Antivirus security service.



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wecolab asked:

輔大資工2008.9.23 網路概論授課教授:梅興上課內容:Network Delay/Loss, Protocol, HTTP CH1 introduction

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C-Man asked:


I cant find my WPA or WEP and my life would be much easier if I could disable my security for an hour or so so that I can set up my home network…anyone know how to disable the security?

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krishnamurthy asked:


Here I am going to give u free guidelines, video tutorials for all this certifications. I am working on that.. Expect the free stuffs soon..

Networking videos

Cisco Networking:

Cisco Systems, Inc. (NASDAQ: CSCO, SEHK: 4333) is a multinational corporation with more than 63,000 employees and annual revenue of US$35 billion as of 2007. Headquartered in San Jose, California, it designs and sells networking and communications technology and services under five brands, namely Cisco, Linksys, WebEx, IronPort, and Scientific Atlanta.

Cisco Certifications:

Cisco Career Certifications are IT professional certifications for Cisco products. The tests are administered by Pearson VUE (Prometric previously administered the test; but as of 1 Aug 2007, no longer does).

There are three levels of certification:

* Associate,

* Professional, and

* Expert.

Associate certifications:

* Cisco Certified Network Associate (CCNA)

* Cisco Certified Design Associate (CCDA)

Cisco certified network associate (CCNA):

Candidates have the option of gaining the certification by passing two tests (ICND1 640-822 and ICND2 640-816), or one single test (CCNA 640-802); the two-test option has the advantage of allowing the candidate to focus on certain subjects.

The certification is valid for three years; at that time a CCNA holder must either

* re-take the CCNA or ICND exam, or

* take and pass an exam for one of the Professional (e.g., CCNP) or Specialist level certifications (excluding the sales specialist exams), or pass the CCIE written exam.

These exams are known by their corresponding numbers. When the curriculum of the exam changes the exam number also changes. The current exam number for CCNA is 640-802 (from 15 Aug 2007). New ICND Part1 (640-822 ICND1) and ICND Part2 (640-816 ICND2) available from 15 Aug 2007. Part 1 by itself will give you a CCENT.

These exams are conducted by authorized test centers at a cost of $125 USD each for the ICND1 or ICND2 exams and $150 USD for the full CCNA exam.

There is also the Cisco Networking Academy, which brings the CCNA and CCNP curricula into traditional educational institutions in over 150 countries.Students enrolled in Cisco Networking Academy can request exam vouchers that allow them to take the retired exam for an extended period of time.

Cisco Certified Design Associate (CCDA):

The CCDA certification indicates an apprentice knowledge of Cisco network design. Individuals who have earned a CCDA are capable of designing switched or routed networks consisting of LANs, WANs, and various dial services. While a CCNA certification is not required to take the CCDA exam, Cisco recommends being familiar with CCNA material. Also recommended is knowledge of BCMSN.

Professional certifications:

* Cisco Certified Network Professional (CCNP)

* Cisco Certified Design Professional (CCDP)

* Cisco Certified Internetwork Professional (CCIP)

* Cisco Certified Security Professional (CCSP)

* Cisco Certified Voice Professional (CCVP)

Cisco Certified Network Professional (CCNP):

The CCNP is considered proof of having the ability to work with medium-sized networks (between 100 and 500 end devices) and with technology such as QoS, broadband, VPNs, and security-minded features. To acquire a CCNP one must possess a CCNA certification first and then pass three or four tests, depending on the path one chooses. The four tests path requires the candidate to pass the following tests:

* 642-901 BSCI: Building Scalable Cisco Internetworks (BSCI) - Deals with routing

* 642-812 BCMSN: Building Cisco Multilayer Switched Networks (BCMSN) Deals with switching

* 642-825 ISCW: Implementing Secure Converged Wide Area Networks (ISCW) - Deals with wide area networks

* 642-845 ONT: Optimizing Converged Cisco Networks (ONT) - Deals with using Qos to tune networks to work effectively with IP Telephony.

The BSCI and BCMSN tests can be taken as one single composite test known as the 642-892 Composite which covers subjects for Building Scalable Cisco Internetworks (BSCI) and Building Cisco Multilayer Switched Networks (BCMSN).

In order to retain the certification one must either re-certify or pass one of the CCIE written exams before the Professional certification expires. Additional resources and tools to aid in preparing for the certification are available on the CCNP Prep Center.

Cisco Certified Design Professional (CCDP):

The CCDP certification is an advanced network design certification provided by Cisco Systems, Inc. Candidates for the certification are tested for advanced knowledge of Cisco devices and the way to interconnect them. This certification is considered a professional level certificate by Cisco Systems. (The CCNA and CCDA are prerequisite.)

Cisco Certified Internetwork Professional (CCIP):

The CCIP certification is a professional certification covering the end-to-end protocols used in large scale networks.

To attain this certification tests must be passed in the areas of routing, BGP, MPLS and Quality of service.

Cisco Certified Security Professional (CCSP):

The CCSP certification is an advanced network security certification. Candidates for the certification are tested for advanced knowledge of various Cisco security products.

To attain this certification several tests must be passed in the areas of VPN, IDS, PIX firewall, Secure IOS, the Cisco SAFE, as well as having a CCNA or higher level certification (e.g. CCNP or CCIP).

The common practice is to take five exams which include one elective paper. The list of exams and elective papers can be found in the Cisco website.

Cisco Certified Voice Professional (CCVP):

The CCVP is a certification covering all aspects of IP Telephony/VOIP networks and applications.

To attain this certification, five tests must be passed in the areas of Quality of service, Cisco VoIP, IP Telephony Troubleshooting, Cisco IP Telephony, and Gateway Gatekeeper.

Expert-level certifications:

The expert-level certification is the Cisco Certified Internetwork Expert (CCIE). It is the highest level of professional certification that Cisco provides. There are 5 active CCIE tracks, as shown below. As of April 6, 2008 there are 16,335 people with active CCIE certifications in the world.

Cisco began its CCIE program in 1993 originally with a two day lab, later changing it to the one day format used today. Fewer than 3% of Cisco certified individuals attain CCIE certification, and on average will spend thousands of dollars and 18 months studying before passing. Many candidates build mock-labs at home using old Cisco equipment, selling it again to other candidates after passing. Alternatively candidates may rent “rack time” online and practice lab scenarios on Cisco equipment hosted on the Internet for that purpose.

Cisco refers to the CCIE as the “most respected IT certification”, and from 2002 to 2005 it was voted as such in CertCities magazine. It has also been voted the most technically advanced IT certification by CertMag, and is generally reported as the highest salaried certification in IT salary surveys.

The CCIE is comprised of a written exam and a “lab” exam (each in the specific area of the chosen track). The written exam is required to take the lab exam, and has a cost of $315 USD per attempt. Upon passing the written exam, the candidate is qualified to have a first attempt the lab exam for 18 months. If the first attempt is unsuccessful the candidate has 3 years from the date the written exam was passed to successfully complete the lab. If a candidate does not pass the CCIE lab in that time, they must pass the CCIE written exam again before making additional attempts at the CCIE lab exam. As many attempts can be made to pass the lab exam for up to 3 years after passing the written, so long as the first attempt is within 18 months. There is a minimum waiting time between attempts of one month.

The CCIE Lab is currently $1,400 USD per attempt and are offered only at ten Cisco lab exam locations worldwide. The locations are Bangalore; Beijing; Brussels; Dubai; Hong Kong; Research Triangle Park, NC; San Jose, CA; São Paulo; Sydney; and Tokyo. Some CCIE tracks do not have lab exams available at all locations. For example, the Storage Networking lab is available only at the Research Triangle Park, NC and Brussels locations. In addition, according to a survey by Cisco the average cost to prepare for CCIE certification is $9,050 as of April 2006, spent mostly on practice equipment and self study material.This is partially offset by the increased salary the certification commands, which a March 2007 Network World article estimates at 10% - 15% over similarly experienced engineers who do not have a CCIE.

The lab is an 8-hour hands-on exam designed to demonstrate that the candidate not only knows the theory, but is also able to practice it. Many prospective CCIEs need multiple attempts to pass the lab exam.

There are no formal prerequisites for the CCIE exam, but Cisco recommends one has at least 3 - 5 years experience in networking before attempting to become a CCIE. CCIE was the first Cisco Certified qualification, and as such there were no other certifications that could be taken prior. The development of the associate and professional certifications was due to recognition of the fact that a CCIE is overkill for many networking personnel, and also for the vast majority of businesses who employ such people, and that certifications needed to be offered at lower levels. Despite the development of the lower certifications, Cisco has chosen not to make them formal requirements for the CCIE certification.

It is possible to hold multiple CCIE certifications. This is done by passing both the written and the lab exam in a particular track. As of November 14th, 2007 there are 1,344 individuals who hold multiple CCIE certifications. Of those, 210 hold three or more CCIE certifications.

* CCIE Numbering

* CCIE Routing & Switching

* CCIE Security

* CCIE Service Provider

* CCIE Voice

* CCIE Storage Networking

* CCDE

CCIE Numbering:

Upon successful completion of the hands on lab exam, a new CCIE is awarded a CCIE number. The first CCIE number allocated (in 1993) was 1024, and has increased incrementally from there. A lower number indicates that the CCIE was awarded some time back, a higher number indicated a more recently awarded certification. As of February 2008, the highest CCIE number allocated was just over 20000.

Number 1024 was allocated to the first CCIE lab location, rather than to an individual, and featured as a plaque at the entrance to the lab. Number 1025 was awarded to Stuart Biggs, who created the first written exam and first lab exam. The first person to pass both CCIE written and lab exams was Terrance Slattery, who was consulting to Cisco at the time when the lab was being devised. Terry Slattery (CCIE 1026) was therefore the first CCIE who passed both exams, and the first CCIE who was not an employee of Cisco.

Any CCIE who obtains further CCIE certifications, is not awarded any further numbers, the new CCIE certification is awarded under the same number as the original.

CCIE Routing & Switching:

Routing and Switching is by far the most popular track with 16,355 certified individuals as of March 25, 2008. The certification covers a variety of networking concepts and protocols including but not limited to the following list

1. Routing and Switching

* Frame Relay

* Ethernet

* Catalyst Switch Configuration

2. IP Interior Gateway Routing Protocols

* Open Shortest Path First (OSPF)

* Enhanced Interior Gateway Routing Protocol (EIGRP)

* Routing Information Protocol v2 (RIPv2)

* Routing Information Protocol Next Generation (RIPng) - IPv6

* Open Shortest Path First v3 (OSPFv3) - IPv6

* On-Demand Routing (ODR)

* Filtering, Summarization, Redistribution

3. Border Gateway Protocol (BGP)

* Interior BGP (iBGP)

* Exterior BGP (eBGP)

* Filtering, Summarization, Redistribution, and Traffic Engineering

4. Multicast Routing

* Protocol Independent Multicast (PIM)

* Multicast Source Discovery Protocol (MSDP)

* Distance Vector Multicast Routing Protocol (DVMRP)

* Anycast

5. Quality of Service (QoS)

* Classification

* Congestion Management and Avoidance

* Policing and Shaping

* Signaling

6. Security

* Authentication, Authorization, and Accounting (AAA)

* Traffic Filtering

* IOS Firewall Feature Set

* Access Lists

* Routing Protocol and Catalyst Security

7. IP and IOS Features

* IP addressing

* Dynamic Host Configuration Protocol (DHCP)

* Next Hop Redundancy Protocols (HSRP, VRRP, GLBP)

* IP services

* IOS user interfaces

* System management

* Network Address Translation (NAT)

* Network Time Protocol (NTP)

* Simple Network Management Protocol (SNMP)

* Remote Monitoring (RMON)

* IP Accounting

* Service Level Agreement (SLA)

CCIE Security:

The Security track concentrates on network security and covers subjects such as ASA, IDS, IOS security, and many others.

CCIE Service Provider:

The Service Provider track focuses on networking in the service provider industry. Subjects include Optical networks, DSL, WAN switching, Voice over IP, Content Networking, Broadband Cable and Metro Ethernet.

CCIE Voice:

The Voice track concentrates on voice solutions for the enterprise and includes subjects such as QoS, MGCP, Call Manager (Cisco’s VoIP PBX), Cisco Unity (Cisco’s Unified Messaging platform), Unity Express and IP Contact Center Express.

CCIE Storage Networking:

The latest addition to the CCIE certification tracks is the CCIE Storage Networking track. As the name suggests, the Storage Networking track concentrates on storage networking topics, such as Fibre Channel, iSCSI, FCIP, Intra VSAN Routing and FICON.

CCDE:

Cisco Certified Design Expert CCDE Assesses advanced Network Infrastructure Design Principles and Fundamentals for large networks. A CCDE can demonstrate an ability to develop solutions which address planning, design, integration, optimization, operations, security and ongoing support focused at the infrastructure level for customer networks.

Prerequisites for CCDE There are no formal prerequisites for CCDE certification. Other professional certifications or training courses are not required.

Recommended Training and Experience It is expected that the candidate will have an in-depth understanding of the topics in the exam blueprints, a minimum of seven years job experience, and a thorough understanding of networking infrastructure principles. Please view the written exam information page for more details.

Step One: CCDE Written Exam You must pass the two-hour, written qualification exam which covers advanced networking infrastructure design principles and concepts. Once you pass the qualification exam, you are them eligible to schedule the practical exam.

Step Two: CCDE Practical Exam The CCDE practical exam is still in development, however it will be an eight-hour exam that will test your ability to identify, manage, and create advanced solutions for large scale networks. You must pass the lab within three years of passing the written exam in order to achieve certification.

Here I am going to give u free guidelines, video tutorials for all this certifications. I am working on that.. Expect the free stuffs soon..



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computerconsulting asked:

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drordroidhunter asked:

Droidhunter - Protect and manage your information and android phone anywhere you go. Droidhunter is a complete security service for android with integrated anti-virus, intrusion detection, online managing service and incoming alerts. Locate lost android devices, retire fugitive ones, wipe unexpectedly stolen and keep Malware away. Download FREE demo now, full version coming soon!

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videossubmission asked:

We offer a wide variety of networking services, from network troubleshooting, to installing a new network.

network protection & automation guide

Evelyn Saunders asked:


It is no secret that there are computer hackers out there and any information on our computer systems is susceptible to attack. Ensuring confidentiality of sensitive information is critical to any organization. Any compromise of information about your business, customers, employees or partners could lead to very costly consequences.

Various technologies have been implemented to protect our computers and when choosing the right security, one can feel protected. But how much do you know about network security and how to protect your information?

As critical as it is to protect information, industry solutions still remain a bit behind the times. Rare are solutions that can be applied across an entire IT infrastructure, helping to secure both infrastructure and business applications. Many solutions are limited to detecting an anomaly versus preventing it from happening in the first place.

An effective security strategy requires a holistic approach based on a framework that extends across applications, middleware and data stores.

Network security starts from authenticating any user, most likely with a username and a password. Once authenticated, authorization enforces which resources this user has access to across the enterprise system. Though effective to prevent unauthorized

access, this component fails to check potentially harmful contents such as computer worms being transmitted over the network. An intrusion prevention system (IPS) helps detect and prevent such malware. IPS also monitors network traffic for suspicious content, volume, and anomalies to protect the network from attacks such as denial of service.

With a large company, managing security policies for thousands of users across hundreds of applications can be a daunting task. Using automated user provisioning and de-provisioning, and self-service user functions such as password resets and delegated administration, dramatically reduces costs and improves security. Various sized businesses, from a home business to a large government operation will each have their own unique challenges. Depending on who you are, your system will have to be tailored to your needs. Below are just a few quick examples of what you should look for within your system.

Small homes

* A basic firewall.

* A basic Antivirus software like Norton AntiVirus, AVG Anti-Virus or Windows Defender. Others may suffice if they contain a virus scanner to scan for malicious software.

* When using a wireless connection, use a robust password.

Medium businesses

* A fairly strong firewall

* A strong Antivirus software and Internet Security Software.

* For authentication, use strong passwords and change them on a bi-weekly/monthly basis.

* When using a wireless connection, use a robust password.

* Raise awareness about physical security to employees.

* Use an optional network analyzer or network monitor.

Large businesses

* A strong firewall and proxy to keep unwanted people out.

* A strong Antivirus software and Internet Security Software.

* For authentication, use strong passwords and change them on weekly/bi-weekly basis.

* When using a wireless connection, use a robust password.

* Exercise physical security precautions by employees.

* Prepare a network analyzer or network monitor and use it when needed.

* Implement physical security management like closed circuit television for entry areas and restricted zones.

* Use security fencing to mark the company’s perimeter.

* Provide fire extinguishers for fire-sensitive areas like serve rooms and security rooms.

* Hire security guards to help to maximize security.

Government

* A strong firewall and proxy to keep unwanted people out.

* A strong Antivirus software and Internet Security Software.

* Strong encryption, usually with a 256 bit key.

* Whitelist authorized wireless connection, block all else.

* All network hardware is in secure zones.

* All hosts should be on a private network that is invisible from the outside.

* Put all servers in a DMZ, or a firewall from the outside and from the inside.

* Security fencing to mark perimeter and set wireless range to stay within the perimeter.



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expertvillage asked:

A good way to connect computers to a network is with a direct connection with an Ethernet cable to a wired connection. Get hooked up to the internet with tips from a computer specialist in this free video on computer networking.

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buddhipriyankara asked:


My IELTS score is L=6, R=5, W=6, S=6.5 Overall band score is 6. Is that sufficient me to migrate to Australia. I received my Skill assessment from ACS specialising 2231-79 (Computer Professional Network Security)

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