There are multiple aspects of security in this network, which I have tried to implement as much as possible. This is where the CIA triangle comes into play, confidentiality, rules and limits to access information; Integrity, making sure the data is accurate and trustworthy; Availability, having reliable access to the information. I am going to talk about each aspect in a list format and explain how it’s used in my network. One thing that will be performed on all network devices is system updates and patches. They will happen on a monthly basis, on a weekend when the networks are not being used.
The best network design to ensure the security of Corporation Techs internal access while retaining public Web site availability consists of several layers of defense in order to protect the corporation’s data and provide accessibility to employees and the public.
Security is almost certainly the most difficult aspect of a network to perfect. It is important to have the correct procedures and components in place to make certain network security is being accounted for and addressed on any given network. The journal, “Future Generation Computer Systems” elaborates on this necessity for an information system. “Future Generation Computer Systems”, this component of a network is discussed thoroughly. “Essentially securing an Information System (IS), involves identifying unique threats and challenges which need to be addressed by implementing the appropriate countermeasures” (Dimitrios Zissis, Dimitrios Lekkas, 2012). This was achieved through configuring access lists as well as CHAP configuration on the routers connecting to the edge
The public facing servers used to connect the internal webserver to the customer website are contained within the demilitarized zone. Due to the demilitarized zones proximity to the wide area network, we will be taking a layered security approach. There will be a statefull firewall located between the router and the demilitarized zone. This firewall will protect the internal network via the LAN-to-WAN connection by performing in-depth packet inspection and closely
Protecting the network would be considered the first and primary line of defense as mentioned by Boyles. (2010) At present, the only way to ensure the network is protected is to deploy a firewall appliance that performs stateful packet inspection. Let us consider another analogy. A firewall could be considered the same as a security guard at the entrance to a public building. The guard's job is to ensure only those individuals employed at the facility are allowed entry into the building. Usually accomplished by inspecting the credentials of the employees’ to make sure that are who they say they are. Those individuals that cannot produce credentials or are not allowed entrance into the facility are turned away. This is very similar to what a firewall does; it inspected packets coming into the firewall to ensure that they match a state which is maintained in the state table of the firewall. If they do them the packets are allowed to continue, however, if they do not match a state in the state table, the packets are dropped. This is an important feature of firewalls. To ensure that packets cannot harm the network and the computers on the network and to protect from attacks that originate outside the network, is in fact, one of the best solutions that can be proposed to ensure the security of the computers and network used by library
The Firewall systems will be used to prevent scanning activity as well as blocking malicious IPs from entering the network. This is critical because being able to block this type of traffic can save a network and the people who watch it a lot of time on incident investigations. When hackers are scanning a network they are looking for reply backs from any port(s) that will respond. This can help them finger print a system and by knowing what is on a network they can use this information for crafting attacks. Once this is identified by a security team they can block the intruding IP at the firewall. This will prevent all traffic coming and going to the suspicious IP in question.
Generally, firewalls are configured to protect against unauthenticated interactive logins from the outside world. This protection, more than anything, helps prevent vandals from logging on to machines on your network. More elaborate firewalls block traffic from the outside to the inside but permit users on the inside to communicate freely with the outside. The firewall can protect you against any type of network-borne attack if you unplug it.
Network security has changed significantly over the past years. There is more and more data to monitor and analyze in order to detect the activity of your data and systems. Securing a network has many variables. Password authentication, network access, patches, anti-virus protection, intrusion detection, firewall and network monitoring tools are just a few of the things you can do to protect yourself.
Firewalls is categorized as a preventive control which is used as a defense shield around IT systems to keep intruders and hacking from occurring, whereas, an Intrusion Detection System (IDS) which is categorized as a detective control is used to detect intrusions that have already occurred (Cavusoglu, Mishra, & Raghunathan, 2005). However, IDSs are not
A computer network is a network that consist of two or more computers that are able to share information between them or their users. There are a large variety of different networks and the advantages or disadvantages are strongly related to the type of network we choose.
Ied. A widely accepted alternative or at least complement to host-based security services is the firewall. The firewall is inserted between the premises network and the Internet to establish a controlled link and to erect an outer security wall or perimeter. The aim of this perimeter is to protect the premises network from Internet-based attacks and to provide a single choke
Vlans are also capable of isolating and warning others of infected routers, letting the administrator of the IT team to carefully take action into the scene before it infects its users.