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Computer Network Security

Network security is any form of computer security dealing with multiple computers linked through a network. Questions about everything from firewalls to viruses to denial-of-service attacks belong here.

500 Questions

What types of VPN does Windows 2000 and beyond work with natively?

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Asked by Yurym

Windows 2000 and its subsequent versions support various types of VPN protocols natively. The native VPN support in Windows includes:

  • PPTP (Point-to-Point Tunneling Protocol): PPTP is an older protocol and may not be as secure as some newer options. However, it is still supported by Windows and can be used for basic VPN connections.
  • L2TP/IPsec (Layer 2 Tunneling Protocol with IP Security): L2TP/IPsec provides a more secure option compared to PPTP. It is a widely used protocol for VPN connections on Windows and offers enhanced security through the use of IPsec.
  • SSTP (Secure Socket Tunneling Protocol): SSTP is a proprietary protocol developed by Microsoft. It operates over SSL/TLS and is known for its ability to traverse firewalls and proxies easily.
  • IKEv2 (Internet Key Exchange version 2): IKEv2 is a modern VPN protocol that is highly regarded for its stability and fast reconnection capabilities. It is well-integrated into the Windows operating system.
  • OpenVPN: While not natively supported by Windows, many users opt for OpenVPN as a third-party option due to its open-source nature and strong security features.

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What is difference between modular or non modular router?

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Asked by Wiki User

additional ports can be added in modular routers.

Concepts of hacking and cracking?

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Asked by Wiki User

Long answer made short: * learn what asm is (short for assembly code) * learn how to reverse engineer (get the assembly code of a program, a debugger is most commonly used) * learn a programming language basics (mainly how to read and write to memory) You can then reverse your program, find what you need to change, and create an external program to edit the part you wish to change. (otherwise known as memory hacking, or mem hacks) to crack, its the same, reverse, locate, however, you then have to permantly change part of the program. this is often done to bypass serial codes. a JE is changed to JNZ, or simply JMP.

How do you see what other people are doing on your WiFi network?

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Asked by Wiki User

Depending on what firmware is on your router you can check out the log files. Though the most you are going to get from this a MAC address, which really isn't much good for finding the person. The only real upside is you can block their MAC and most attackers seem to have a hard time to figure out why they cant get back on all of a sudden. Usually I just put a password on the actual router but leave wep/wpa key off. Set-up Vlan. Set-up QoS. Give myself the best stream and set everybody else to a setting that makes dial-up look fast. Most people give up when they see the terrible speeds they are getting and wont bother the network again. If you want to be nasty, let them connect and sniff their traffic. Next time they go online they will see their emails are all deleted except one which pretty much warns about the dangers off connecting to open networks.

What do the letters RSA stand for?

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Asked by Wiki User

RSA is a data-encryption technology utilizing prime factorization. Its name is derived from the developers who created it: Rivest, Shamir and Adelman.

What is the name of a type of attack where the intruder observes authentication secrets sich as a combination or pin?

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Asked by Wiki User

They use the attack called shoulder surfing, which is looking over someone's shoulder to get personal information.

What are the advantage and disadvantage of security in computer network?

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Asked by Wiki User

First the advantages. A secure network has much less likelihood of unauthorized access which could result in corrupted data, stolen data, or malicious damage to a database. Some form of encryption is usually used to make data unreadable even if it is stolen. The chief disadvantage is slowdown of the system. Encrypted data must be un-encrypted, users have to be verified, some IP addresses have to be blocked, etc.

How can you see on your computer who is using your wlan network?

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Asked by Wiki User

click on start menu botton than click run and tape cmd, a black window will be open tape "net view"

What IT companies produce software for network security?

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Asked by Wiki User

The company McAfee is the largest company that produces security technology. There are also several other companies that offer similar services, such as Skybox Security, Inc; eEye digital security; Symantec Corporation and Tenable Network Security.

What activities and tasks would like to focus on during the next year?

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Asked by Wiki User

There are many activities and tasks a person could focus on. If in school a student would need to focus on their classes and assignments first and the. Any clubs or activities such as sports, band, or color guard. If a person is not in school they would need to focus on work and twit family. Some activities could be family game night, knitting or crocheting, and painting.

What is the role of cryptography in information security?

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Asked by Wiki User

While the term security arises the cryptography or cryptology always comes at the top of the list on the topic of security of any system, device and whatever else. The technique of transforming and storing information or in the ease of communication between two parties cryptography helps to connect, store and transform with security.

How do you be secure on an unsecured network?

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Asked by Wiki User

You con not be totally secure on any network, secured or unsecured. There is always someone out there that would "love to show us what we don't know about computers". Not my words, someone else's that I used to work with. However, you can be relatively secure. You can use SSL. You can use a secured VPN. You can ... It hard to quantify security. Is it 99%? Is it 99.997%? It comes down to safe practices - Updated OS - Current Antivirus - not doing unsafe things.

What is a SOA record?

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Asked by Wiki User

A start of authority (SOA) record is information stored in a domain name system (DNS) zone about that zone and about other DNS records. A DNS zone is the part of a domain for which an individual DNS server is responsible. Each zone contains a single SOA record. SOA records are defined in IETF RFC 1035, What_is_SOA_records- Implementation and Specification.

Read more: What_is_SOA_records

Anil Bankey

How do you catch a hacker?

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Asked by Wiki User

Email hackers are generally tracked by Cyber crime police. They can track the IP address of the hacker. With the IP address, they can track the location of person.

What are the Advantages and disadvantages of paper form vs computer generated form?

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Asked by Wiki User

One wastes our air and other resources. The other polutes the air and uses coal.

Difference between supernetting and subnetting?

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Asked by Wiki User

SUBNET: subnet is a group of networks having same network id. subnet increase the number of hosts with same network address, as result it reduces the wastage of addresses.

In subnetting bits of hostId will be captured by networdId.

SUPERNET:

supernet makes all the hosts with in a range of network address belong to a same group. This reduces the entries in the network address table.

Supernetting combines the octets of the address.

What is the default password for linksys router?

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Asked by Wiki User

IP stands for Internet Protocol, and is the means of 2 computers sending information to one another. The IP address for a Linksys router is usually 192.168.11, and may be the IP address for other manufacturers as well.

Is the computer a data terminal equipment?

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Asked by Wiki User

Data Terminal Equipment (DTE)

A Data Terminal Equipment (DTE) is a communication device that is the source or destination of signals on a network, typically a terminal or a computer. It communicaties with the data circuit-terminating equipment and can perform all the required functions necessary to permit users to communicate.

What kind of software offers data security for a network?

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Asked by Wiki User

There are two main types of software that offer data security for the network of home users, including Personal Firewalls & Encryption. Personal Firewalls protect you from network intrusions like viruses, and Encrytion protects your sensitive data while you're online.

List two advantages of the SATA drive over the PATA drive?

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Asked by Wiki User

a SATA hard drive can be connected to and controlled by a SAS hard drive controller