Protecting Your Network UMUC CSEC 610 April 16, 2015 David Gianna Introduction According to Beaver (2010), to have a secure operating systems and applications, you need to have a secure network. Devices such as routers, firewalls, and even generic hosts (including servers and workstations) must be assessed as part of the ethical hacking process. There are thousands of possible network vulnerabilities, equally as many tools, and even more testing techniques. You probably don’t have the
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ACADEMIC YEAR 2011/2012, SEMESTER TWO, TEST TWO. COURSE NAME: COMPUTER SECURITY COURSE CODE: CSC3207 Instructions: Answer all questions. Duration: 1hour. Date sat. 15th April 2012 Test is out of 40marks. 1. Is magnetic media safe for data storage? Elaborate on your answer. 6mks NO. - It is volatile. - A lot of vigilance is required (no exposure to heat, sun light etc) - Forensics (data recovery tools undermine some operations like delete)
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Firewalls According to Regan (2004) firewall is a combination of hardware and software that serves as defense against external threats to a network system, a firewall’s task in a networked environment is to block communications not permitted by the security policy. Another function is to keep computer networks secure and safe by working as a barrier keeping destructive forces away from network systems. A firewall also controls traffic between different zones, typical the zones include an internal
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INFORMATION RESOURCE GUIDE Computer, Internet and Network Systems Security An Introduction to Security i Security Manual Compiled By: S.K.PARMAR, Cst N.Cowichan Duncan RCMP Det 6060 Canada Ave., Duncan, BC 250-748-5522 sunny@seaside.net This publication is for informational purposes only. In no way should this publication by interpreted as offering legal or accounting advice. If legal or other professional advice is needed it is encouraged that you seek it from the appropriate source. All product
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will be narrowed down more to hardware issues. It is very curious that there is no firewall implemented between the commercial division and the Internet. The Defense Department must be routed through Headquarters, but the Commercial department is connected straight to the Internet. This is a significant vulnerability. The second weakness that will be examined is the security policy stating router and firewall rule sets should be evaluated every two years. Such a time span between rule-set evaluations
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10GB connections. Remote Dial up access via PSTN VPN gateway connected to an Off-Site office A DMZ network which is made up of 2 Border (Core) routers, which are connected to the 2 10GB internet connections. 2 Distribution Routers. 1 VPN gateway, 1 firewall, 1 RMS server and a PBX box that is connected to the PSTN remote access dial up network. Above is a table that list the six departments. There is also a breakdown of the workstations and 26 printers per department. There are 6 10GB Access Layer VLAN
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throughout your domain. A good administrator will set “triggers”, which are activities that are tagged for alarm, to allow him or herself to be alerted when a breach occurs. These services use protocols such as TCP, UDP, ICMP and SNMP(v1-3). Also, many firewalls can be set up to monitor incoming traffic by analyzing the ports on the TCP/UDP header and ensuring they are permitted to be passed within the domain. Within a windows domain, you can establish group policies to enforce restrictions on users that
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changing to a user friendly environment of BYOD (Bring Your Own Device) model this all poses threat to cyber security. Anti –virus, Anti- malware are expected to acquire the highest market share due to this. Next Generation Firewall (NGFW) an advanced version of the firewall that filters network and internet based traffic helps to detect application specific attacks is also another major solution. File layer attacks are the key emerging trends responsible for increasing these cases. Cyber security
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Lab #8 | Design a Layered Security Strategy for an IP Network Infrastructure 8. Where should the IDS/IPS be located on the DMZ and why? 9. What servers or services can you install on the public-facing side of your DMZ? 10. Do you need a firewall in a router enabled if you have an external
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Chapter 4 Threats and Attacks to a Computer Network Research shows that “threats to the computers and networks have been an issue since computers began to be used widely by the general public. Nowadays, any computer or network that is connected to the Internet is at risk” (http://infopeople.org/resources/security/basics/threats_vulnerabilities.html, 2008) There are unlimited different types of threats exists in computer networking field but in this report mainly six different common but important
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