Tag Archives: firewall network security

Network security and firewalls for securing computers and networks

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Internet is a resourceful destination for many and it is also where ways are built to cause insecurity to the computers and networks. At the same time, online presence cannot be ruled out. In spite of the threats we combat, we still want to make the most of the internet. Through the internet, unauthentic sources can gain access to your computers and networks. In order to protect the computers and the network from unauthorized access, network security and firewalls is essential.

What are firewalls?

A firewall is a blockage between the internal network and external network. The firewalls detect the authorized sources and make allowance for their access to the network. At the same time, firewalls recognize the unauthorized elements and deny their access to the network. Altogether computer and network security with the firewalls can be achieved.

A firewall is available as both software or hardware or a combined one; the combined firewall offers a more protective solution than the single firewall with more layers of protection.

Network Security Firewalls

Firewall performs the following duties:

  • Ensures the internal networks are well-secured by filtering the data packets flowing toward the network
  • Prevents external sources from attempting to interrupt the networks, which cause a service attack
  • Blocks permission for the external source from accessing the networks

Firewalls take care of the overall network security by examining, identifying the authenticity of the external source and allowing or denying permission for the unauthorized sources moving in or out, crossing the firewall. The computers and network security is ensured and any cyber insecurity is put at bay.

VRS Technologies is an IT service provider with various services under the umbrella. We put in our best efforts toward offering high-end security with the best in the market security tools. With our knowledgeable professionals, we provide best firewall solutions in Dubai and UAE for your computers and networks to be secure.

Call VRS Technologies for the network and firewall security at +971 56 7029840 or refer to our website www.vrstech.com to learn more.

Kinds of network security firewall for securing networks from intrusions

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Firewall is a network device that acts like a barrier between the incoming and outgoing traffic across the network. The firewall network security blocks the computer attacks or prevents further spreading of it. The network can be at safety from the attacks trying to intrude into the network and attempting to gain access to the valuable data present in the system. A network security firewall is essential for the network to be safe.

Network Security Firewall

Network Security Firewall

Packet filtering firewall

The packet filtering firewall blocks the traffic following a set of firewall rules, based on the IP protocol, IP address or port number. This firewall allows web-based traffic into the network and so intrusion prevention system is essential to deal with the web traffic. The intrusion prevention system does the job of differentiating the authentic from unauthentic web traffic and blocks or allows it in.

Among the packet filtering firewalls, the stateful firewalls are more powerful since the stateless firewall cannot make out if the detected packet allowed in and the packet that is disguised are different. The stateful firewall comes with an active and defined firewall management by recognizing the traffic that is part of the established outbound connection.

Deep packet inspection firewall

The deep packet inspection firewall offers security against application level attacks by examining the data in the packets entering the network. The deep packet inspection firewall offers security to some extent but does not examine the whole packet, missing some kinds of attacks. This firewall functions similar to the intrusion prevention system.

Application-aware firewall

The application-aware firewall is capable of adapting to the latest innovations of software and hardware by understanding any kind of network insecurity as per the present day’s changing needs. This firewall detects all kind of network traffic and provides granular traffic at the application level usage like Facebook, Twitter etc. in comparison to the traditional firewalls which need a separate appliance to perform the duty.

VRS Tech is an IT service provide in Dubai, UAE offering the network security firewall solutions for small and medium size or large organizations. Our expert team of engineers takes care of your network security with the effective firewall solutions in the market.

Call VRS Tech at +971 56 7029840 and we will be able to provide the best firewall solutions to secure your network.  Or refer to our website  www.vrstech.com.

Network security and firewall have been the enforcement for network security

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Network security and firewall have been the most pivotal elements in reference to bringing about the appropriate enforcement and the subsequent deployment of the security policy within the network connectivity in the organization.

In this particular paradigm, the firewall has been considered as a network security device that constantly monitors both the incoming and outgoing network traffic and in this particular traffic regulation the firewall acts as a barrier between the trusted and the untrusted network system thereby filtering the data packets ensuring that data which is further transmitted from the source to the other terminal end points happens safely.

network security and firewall

network security and firewall

Efficacy of the packet filtering methodology

As an analogy, one can understand that packet filtering is an expensive component to implement and deploy in the corporate networks. However, one should understand that a packet filtering method of firewall has a very limited level of security as compared to the application or the proxy firewall system

How packet filtering becomes the core activity of the firewall execution?

The packet filtering has been considered as the process of data filtering technique which blocks the untrusted data packets at the source of the network interface itself. This blocking of the untrusted data packets so that the internal network system is kept safe from any malicious intrusions that are bound to occur.

The packet filtering has been considered as one of the core component of the firewall execution program which is specifically designed to safeguard the network system from any untoward intrusions. The packet filtering comprises of three methods of packet filtering mechanism and once configured in the system can predominantly filter the data packets.

  • The first method of packet filtering: In the first method, the packet filtering filters only those data packets which adhere to the standard protocol and discarding the other. The first method of packet filtering has been considered the most secured but there are equal chances for some of the legitimate packets to eventually getting dropped.
  • The second method of packet filtering: In the second method, the packet filtering drops the data packets which are unsafe and accepting the packets which are safe.
  • The third method of packet filtering: In the event that the filter encountering a packet which the firewall is not able to balance between the trusted and untrusted data packets, it queries with the user about the nature of the data packet and probably rejects or accepts based on the user inputs.

The network security  firewall have emerged as a solution in itself in reference to providing the finest cyber security in the enterprise network system and in this particular trend VRS Tech have been constantly empowering the security coverage to the network system both internal and external. At any point of time if you require the network security and firewall systems for your organization, do approach us at VRS Tech and call us at 097143866001 further visit us at www.vrstech.com