These slides cover a topic on ISDN (Integrated Services Digital Network) in Data Communication. All the slides are explained in a very simple manner. It is useful for engineering students & also for the candidates who want to master data communication & computer networking.
These slides cover a topic on ISDN (Integrated Services Digital Network) in Data Communication. All the slides are explained in a very simple manner. It is useful for engineering students & also for the candidates who want to master data communication & computer networking.
Presented by Paul Wilson, Director General of APNIC and Chair of APrIGF Multistakeholder Steering Group at the Asia Pacific Internet Leadership Program as part of 2016 APrIGF Taipei
Learn about the essentials of the Domain Name System (DNS), including name resolution, different record types, roots, zones, authority and recursion.
See the full webinar and the rest of the series at https://www.thousandeyes.com/resources/intro-to-dns-webinar
This slide explains the design part as well as implementation part of the firewall. And also tells about the need of firewall and firewall capabilities.
Best Network Performance Monitoring ToolJoe Shestak
Latest information about basic of Network Performance monitoring and best network monitoring tool with it's key features. I hope this information helps you to choose best network monitoring tools for your enterprise.
How To Learn The Network Security
Slide berikut merupakan slide yang berisikan dasar-dasar bagi kita dalam memahami konsep keamanan jaringan komputer, baik dari sisi inftrastruktur, teknologi dan paradigma bagi pengguna.
Materi yang diberikan sudah disusun oleh Pakar yang merupakan Trainer CEH dan memang berkompeten dibidang keamanan jaringan.
Slide ini saya dapatkan dari beliau saat mengikut training Certified Computer Security Officer (CCSO) dan Certified Computer Security Analyst (CCSA) dari beliau.
Semoga bermanfaat sebagai acuan bagi kita untuk belajar tentang keamanan jaringan komputer.
Terimakasih
Presented by Paul Wilson, Director General of APNIC and Chair of APrIGF Multistakeholder Steering Group at the Asia Pacific Internet Leadership Program as part of 2016 APrIGF Taipei
Learn about the essentials of the Domain Name System (DNS), including name resolution, different record types, roots, zones, authority and recursion.
See the full webinar and the rest of the series at https://www.thousandeyes.com/resources/intro-to-dns-webinar
This slide explains the design part as well as implementation part of the firewall. And also tells about the need of firewall and firewall capabilities.
Best Network Performance Monitoring ToolJoe Shestak
Latest information about basic of Network Performance monitoring and best network monitoring tool with it's key features. I hope this information helps you to choose best network monitoring tools for your enterprise.
How To Learn The Network Security
Slide berikut merupakan slide yang berisikan dasar-dasar bagi kita dalam memahami konsep keamanan jaringan komputer, baik dari sisi inftrastruktur, teknologi dan paradigma bagi pengguna.
Materi yang diberikan sudah disusun oleh Pakar yang merupakan Trainer CEH dan memang berkompeten dibidang keamanan jaringan.
Slide ini saya dapatkan dari beliau saat mengikut training Certified Computer Security Officer (CCSO) dan Certified Computer Security Analyst (CCSA) dari beliau.
Semoga bermanfaat sebagai acuan bagi kita untuk belajar tentang keamanan jaringan komputer.
Terimakasih
Cybersecurity : Tips and Tools to Properly Protect Your Digital AssetsSamuel862293
Cybersecurity tips to protecting your digital asset
In an increasingly digital world, safeguarding your digital assets is essential. This presentation delves into key cybersecurity practices to ensure your data remains secure from cyber threats.
We'll explore the importance of strong, unique passwords and the implementation of two-factor authentication to enhance security. Regular software updates are crucial, as they fix vulnerabilities that cybercriminals could exploit.
Encryption is a vital tool, protecting your data both in transit and at rest, ensuring that even if intercepted, your information remains unreadable to unauthorized users. Regular backups, stored both locally and offsite, safeguard against data loss from breaches or system failures.
We'll also cover email security, highlighting the dangers of phishing and the importance of secure communication channels. Network security practices, including secure Wi-Fi usage and firewall implementation, are essential to protect against unauthorized access.
Mobile devices, often overlooked, need robust security measures and careful management of app permissions. User education is a continuous process, equipping you and your team with knowledge to identify and respond to threats effectively.
Finally, consistent monitoring and auditing of your digital environment help detect anomalies early and ensure compliance with security protocols.
This presentation provides a comprehensive guide to protecting your digital assets, emphasizing that cybersecurity is an ongoing process of vigilance and adaptation to emerging threats.
The "Introduction to Computer Network Security" presentation provides a comprehensive introduction to the fundamental concepts, principles, and practices of computer network security. This presentation is designed for students, professionals, and anyone interested in understanding the essentials of securing computer networks against various threats and vulnerabilities.
Module 3 Lectures 6 hrs.
Infrastructure and Network Security: Introduction to System Security, Server Security,
OS Security, Physical Security, Introduction to Networks, Network packet Sniffing,
Network Design Simulation. DOS/DDOS attacks. Asset Management and Audits,
Vulnerabilities and Attacks. Intrusion detection and Prevention Techniques, Host based
Intrusion prevention Systems, Security Information Management, Network Session
Analysis, System Integrity Validation.
Open Source/ Free/ Trial Tools: DOS Attacks, DDOS attacks, Wireshark, Cain & abel,
iptables/
Windows Firewall, snort, suricata, fail2ban
2. What are the main characteristics of VLANsPresented by: Kerry-Ann Cole
3. Introduction Network security involves all activities that organizations, enterprises, and institutions undertake to protect the value and ongoing usability of assets and the integrity and continuity of operations. An effective network security strategy requires identifying threats and then choosing the most effective set of tools to combat them. P@$$W0RD
4. Threats to network security include: Viruses : Computer programs written by devious programmers and designed to replicate themselves and infect computers when triggered by a specific event Trojan horse programs : Delivery vehicles for destructive code, which appear to be harmless or useful software programs such as games Attacks : Including investigation attacks (information-gathering activities to collect data that is later used to compromise networks); access attacks (which exploit network vulnerabilities in order to gain entry to e-mail, databases, or the corporate network); Data interception : Involves eavesdropping on communications or altering data packets being transmitted Social engineering : Obtaining confidential network security information through nontechnical means, such as posing as a technical support person and asking for people's passwords
5. Network security tools include: Antivirus software packages : These packages counter most virus threats if regularly updated and correctly maintained. Secure network infrastructure : Switches and routers have hardware and software features that support secure connectivity, perimeter security, intrusion protection, identity services, and security management. Dedicated network security hardware and software-Tools such as firewalls and intrusion detection systems provide protection for all areas of the network and enable secure connections.
6. Network security tools include: Virtual private networks : These networks provide access control and data encryption between two different computers on a network. This allows remote workers to connect to the network without the risk of a hacker or thief intercepting data. Identity services : These services help to identify users and control their activities and transactions on the network. Services include passwords, digital certificates, and digital authentication keys. Encryption : Encryption ensures that messages cannot be intercepted or read by anyone other than the authorized recipient.
7. Two Approaches to Security Open Door Is a type of security, in which you grant everyone access to everything by default and then place restrictions just on those resources to which you want to limit access. Close Door Is a type of security, in which you begin by denying access to everything and then grant specific users access to the specific resources that they need.
8. Physical Security: Locking Your Doors The first level of security in any computer network is physical security. Physical Guide Lines to Protect the Server ✦ Lock the computer room. ✦ Give the key only to people you trust. ✦ Keep track of who has the keys. ✦ Disable the floppy drive on the server.
9. Securing User Accounts Properly configured user accounts can prevent unauthorized users from accessing the network, even if they gain physical access to the network.
10. Here Are Some Ways In Which You Can Strengthen Users Account Your usernames Using passwords wisely
12. Summary Of Passwords Passwords must be at least five characters in length. A mixture of numbers and letters provides the greatest security; however, this is not required. Passwords must be unique. You cannot use the same password twice. Passwords must be changed every 60 days. The computer will prompt you and allow for grace logons
13. Securing the Administrator account At least one network user must have the authority to use the network without any of the restrictions imposed on other users. This user is called the administrator. Anyone who knows the default administrator username and password can access your system with full administrator rights and privileges, thus bypassing the security restrictions that you so carefully set up.
14. Hardening Your Network Using a Firewall Disabling unnecessary services Patching your servers
15. Securing Your Wireless Network Use encryption Use anti-virus and anti-spyware software, and a firewall Turn off identifier broadcasting. Allow only specific computers to access your wireless network.
16. The Impact of Network Security Improved productivity Enhanced control Improved usage of IT resources Utmost protection as well as security of data. Acceptance of a good network security system also ensures that only right personnel have the right level of access.
17. VLANs: Virtual Local Area Network VLANs support logical grouping of network nodes to reduce broadcast traffic and allow more control in implementing security policies.
18. Characteristics of VLANS Reduce the amount of broadcast traffic a network Each VLAN operates as separate local area network Members of a VLAN can only talk to other members of the same VLAN Traffic that needs to go between different VLANS is processed through a routing function in the managed switch.