My Netwok Dictionary

Three things to keep in mind to keep your wireless network more secure, not only to prevent outsiders from using the link to download things, but also to prevent spy on and steal information.

1. Put password:

If the network is open (no password), anyone can connect to it. In the best case it could simply browse and download files. But since there are no limitations a malicious person could also use your connection for criminal or spy in search of confidential information like passwords, credit cards, documents, photos etc. Read the rest of this entry »

The security of wireless transmissions can be difficult to achieve where there are wireless networks, security is reduced. This has been a problem since the early days of the WLAN. At present, many administrators are not concerned to implement effective security practices.

Several new protocols are emerging and security solutions such as Virtual Private Networks (VPN) and Extensible Authentication Protocol (EAP). In the case of CAS, the access point provides client authentication, but passes the task to a more sophisticated device, possibly a dedicated server, designed for this purpose. With an integrated server, VPN technology creates a tunnel over an existing protocol such as IP. This is a Layer 3 connection, unlike Layer 2 connection between the AP and the sending node. Read the rest of this entry »

It is increasingly common to find that when you set up a connection in the home is counted with wireless access for both computers and mobile devices to access the Internet. However, many users can enter questions when talking about the security of a wireless network. Today we will try to clarify the main concerns on this issue. At the time of a wireless network, the user should take several precautions in regard to the same settings, including the level of security desired for the network.

It is always recommended that a wireless network is encrypted to prevent an outsider she can connect and access resources that should not, such as photographs or personal records. Unlike wired networks, data transmitted in one of these networks are “on air”, so there are no physical restrictions for an outsider to intercept communications. For this reason, it is important that the data are transmitted encrypted between the teams and the router. Read the rest of this entry »

A sniffer is a program to capture network frames.

It is common that the transmission medium (coaxial cable, UTP, fiber optics etc.) be shared by several computers and network devices, which enables a computer to capture the patterns of information is not meant for it. To achieve this, the sniffer computer tells you to stop ignoring all traffic not destined for the team and pay attention, this is put in a state known as “promiscuous” to the NIC (Network Interface Card).

Currently the network security is of vital importance, since all the information transmitted through them can often be used for profit or make electronic crimes. Read the rest of this entry »

Panorama current on network security:

Network security and data protection has become a primary need in all businesses, especially the extension of networking for mission-critical networks with new intranet and extranet applications and e-commerce. A growing number of companies are looking for security skills and technologies, in order to delegate effectively protect systems and focus on their business strategy. And today is no longer sufficient to address the security concerns with traditional products only for perimeter defense. Read the rest of this entry »

Although the existing 802.11b networks can not provide a high level of security, but if taken to a number of related techniques, or can effectively improve the WLAN’s security. For reference are summarized below:

1. Limit or control the flow of data WLAN. If the WLAN is only used for special purposes (such as access to enterprise resource planning system) can be associated only with this purpose, after the specified packet filter into the WLAN.

2. Do not access points on the office desktop or other easily accessible place, to prevent the visitors, and other colleagues easily exchange or re-set the access point. Read the rest of this entry »

The following will give the user some basic wireless network security recommendations that will help users to better ensure their own wireless network security:

1. Wireless network adapter:

When the user is not using the network, the user is off the wireless network adapter, the reason for doing so, there are two reasons. First of all, extend battery life; second, to prevent use of “Microsoft Windows silent ad hoc network advertisement” penetration attacks the best way. Microsoft’s own network using the default setting of zero access, which gives the attacker an opportunity to exploit. Read the rest of this entry »

Network is a complex environment. Many disturbing problems exist, such as viruses, Trojans horses etc. So how do you ensure the security of our network browsing is it? Our network security protocols here have played no small role. Then we introduce several agreements to let everyone know it.

SSL and IPSec:

1. SSL protection in data communication on the transport layer security, IPSec also taught according to the package on the protection of IP layer security, such as a UDP packet. Read the rest of this entry »

See the Cisco routing first thought is, it has become a lot of people can not erase the imprint of my mind. Routing technology as a founding company, Cisco’s position has never been in the routing in the industry that no one can shake, it can always research for the industry over to help, it can tell you exactly where excitement routing technology, which allows you to applications arising from new obsession. Read the rest of this entry »

VoIP’s security challenges are not insurmountable, and the need is just a complete security plan. From a security point of view, VoIP is not working; it is an IP network and voice network with both a very bad weakness. However, the security challenges facing VoIP is not insurmountable, and we need is just a complete security plan.

Step One: VoIP’s three main security threats are: authentication failure, integrity and privacy protection failure. In the implementation of VoIP, the network layer in each of the three threats to consider. Read the rest of this entry »