Category: Security

How Attackers use Scripting & Batch Files to Create Virus for Hacking?

How Attackers use Scripting Quiz

Test your Cyber Security knowledge and skills by practicing this free online quiz on ‘How Attackers use Scripting & Batch Files.       How Attackers use Scripting & Batch Files & its assets from Cybersecurity attacks is critical these days. This quiz & related lecture will help you to improve your knowledge & skills on this topic.   You might also be interested in our free Online Quizzes on all IT topics including Cisco CCNA, Cyber Security, Python Programming, Linux & Ethical Hacking: Free Online Quizzes (Best for Cisco CCNA, Huawei HCNA, N+) You can also view free study Read More …

Port Security

Port Security

Layer-2 Port Security is used for network traffic control. It allows only the authorized user or filtered MAC address configured to gain access to the network.   Enabling mode Pass/Secret in Port Security To enable mode Pass/Secret we have to Secure the Privileged Mode Access. An encrypted Password is recommended (enable secret)   Example of How to Enable mode Pass/Secret Below is an example of how to enable mode Pass/Secret on the IOS Command Line Interface: R1(config)# enable password networkwalks R1(config)# enable secret networkwalks   Secure the Console (local Access) Secure the Local access by adding a password to Console Read More …

ACL (Access Control List)

acl-access-control-lists 2

ACL (Access Control List) is a list of rules that specifies which users or systems are allowed access to a particular object or system resource. It can simply be defined as a set of instructions to filter inbound and outbound traffic on an interface.   Access Control List Overview and Access List Concepts Access Control List carries out a packet identification mechanism and can also identify packets on the basis of Layer 3 and Layer header. Each access list is composed of one or more ACEs (Access Control Entries) and each ACE is assigned a sequence number. ACEs are processed Read More …

Firewalls and VPNs

VPN

Firewalls are network security devices that monitor and control incoming traffic and outgoing traffic based on a pre-defined set of rules, while VPNs (Virtual Private Networks) are security services that allow devices to access the internet as if they were connected to a private network. Firewalls and VPNs (Virtual Private Networks) in general are both used for security purposes on the network What are Traditional Firewalls? Traditional firewalls sit in the forwarding path. They protect the network from different kinds of issues by allowing only the intended types of traffic to flow in and out of the network, as shown Read More …

Wireshark

wireshark

What is Wireshark? Wireshark is an open-source free packet sniffer and analysis network troubleshooting tool. It captures network traffic on the local network and stores that data for offline analysis. Wireshark can be set up in software form for local traffic of servers/computers. For network setup, we need to enable a port mirroring solution to send all traffic where the Wireshark terminal is connected as shown in this diagram.   Uses of Wireshark (network troubleshooting tool) The uses of Wireshark are: It can be used by network engineers to examine security problems. It is used by network engineers to troubleshoot Read More …

Crunch Wordlist generator (Kali Linux)

Crunch-Wordlist-Generator

Crunch Wordlist generator is a tool which comes by default with Kali Linux. It can create a wordlist based on criteria you specify. The output from crunch can be sent to the screen, file, or to another program. The required parameters are: min-len The minimum length string you want crunch to start at. This option is required even for parameters that won’t use the value. max-len The maximum length string you want crunch to end at. This option is required even for parameters that won’t use the value. charset string You may specify character sets for crunch to use on Read More …