address

informations

Ralph, a professional hacker, targeted Jane , who had recently bought new systems for her company. After a few days, Ralph contacted Jane while masquerading as a legitimate customer support executive, informing that her systems need to be serviced for proper functioning and that customer support will send a computer technician. Jane promptly replied positively. Ralph entered Jane’s company using this opportunity and gathered sensitive informations by scanning terminals for passwords, searching for important documents in desks, and rummaging bins. What is the type of attack technique Ralph used on Jane?

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Ralph, a professional hacker, targeted Jane , who had recently bought new systems for her company. After a few days, Ralph contacted Jane while masquerading as a legitimate customer support executive, informing that her systems need to be serviced for proper functioning and that customer support will send a computer technician. Jane promptly replied positively. Ralph entered Jane’s company using this opportunity and gathered sensitive informations by scanning terminals for passwords, searching for important documents …

Ralph, a professional hacker, targeted Jane , who had recently bought new systems for her company. After a few days, Ralph contacted Jane while masquerading as a legitimate customer support executive, informing that her systems need to be serviced for proper functioning and that customer support will send a computer technician. Jane promptly replied positively. Ralph entered Jane’s company using this opportunity and gathered sensitive informations by scanning terminals for passwords, searching for important documents in desks, and rummaging bins. What is the type of attack technique Ralph used on Jane? Read More »

switch

Robin, a professional hacker, targeted an organization’s network to sniff all the traffic. During this process, Robin plugged in a rough switch to an unused port in the LAN with a priority lower than any other switch in the network so that he could make it a root bridge that will later allow him to sniff all the traffic in the network. What is the attack performed by Robin in above scenario?

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Robin, a professional hacker, targeted an organization’s network to sniff all the traffic. During this process, Robin plugged in a rough switch to an unused port in the LAN with a priority lower than any other switch in the network so that he could make it a root bridge that will later allow him to sniff all the traffic in the network. What is the attack performed by Robin in above scenario? Option 1 : …

Robin, a professional hacker, targeted an organization’s network to sniff all the traffic. During this process, Robin plugged in a rough switch to an unused port in the LAN with a priority lower than any other switch in the network so that he could make it a root bridge that will later allow him to sniff all the traffic in the network. What is the attack performed by Robin in above scenario? Read More »

running

During the enumeration phase, Lawrence performs banner grabbing to obtain information such as OS details and versions of services running. The service that he enumerated runs directly on TCP port 445. Which of the following services is enumerated by Lawrence in this scenario?

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During the enumeration phase, Lawrence performs banner grabbing to obtain information such as OS details and versions of services running. The service that he enumerated runs directly on TCP port 445. Which of the following services is enumerated by Lawrence in this scenario? Option 1 : Telnet Option 2 : Network File System (NFS) Option 3 : Server Message Block (SMB) Option 4 : Remote procedure call (RPC) 1. Telnet Telnet is an organization convention …

During the enumeration phase, Lawrence performs banner grabbing to obtain information such as OS details and versions of services running. The service that he enumerated runs directly on TCP port 445. Which of the following services is enumerated by Lawrence in this scenario? Read More »

commands

Which of the following commands checks for valid users on an SMTP server?

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Which of the following commands checks for valid users on an SMTP server? Option 1 : RCPT Option 2 : CHK Option 3 : VRFY Option 4 : EXPN 1. RCPT The RCPT Commands you tell the mail server who the recipient of your message is by using the RCPT command. you’ll send quite one RCPT command for multiple recipients. The server will respond with a code of 250 to every command. The syntax for …

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Sample DHCP Audit Log File

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Sample DHCP Audit Log File in this DHCP server during a network allocates IP address to a computer during its begin. Therefore, the DHCP server logs contain information regarding the systems that were assigned specific IP addresses by the server, at any given instance. Investigators can examine these logs during forensic examinations. Now DHCP administrators can easily access this data using the built-in logging mechanisms. The DHCP activity log are often read during a text-based …

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Analyzing-IDS-Logs

Analyzing IDS Logs

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Analyzing IDS Logs in this Intrusion detection systems (IDSs) and intrusion prevention systems (IPSs) are among the most sophisticated network security devices in use today.These systems’ logs contain valuable network threat information about attack types, devices being targeted, and more. Intrusion Detection Systems (IDS) are automated systems that monitor and analyze network traffic and generate “alerts” in response to activity that either match known patterns of malicious activities or is unusual. … IDS can be either network or host-based. In addition …

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Learn-more-about-IPv4-Routing-Protocols

Learn about IPv4 Routing Protocols

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Learn about IPv4 Routing Protocols in this the routing (forwarding) process depends heavily on having an accurate and up-to-date IP routing table on each router. This section takes another check out routing protocols, considering the goals of a routing protocol, the methods routing protocols use to teach and learn routes, and an example. First, consider the goals of a routing protocol, no matter how the routing protocol works: To dynamically learn and fill the routing …

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LAN-Switching-Concepts

What are the LAN Switching Concepts

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LAN Switching Concepts A modern Ethernet LAN connects user devices also as servers into some switches, with the switches then connecting to every other, sometimes during a design like Figure 7-1. a part of the LAN, called a campus LAN, supports the end user population as shown on the left of the figure. user devices connect to LAN switches, which in turn connect to other switches so that a path exists to the rest of …

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Learning-MAC-Addresses-infosavvy

Learning MAC Addresses

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Learning MAC Addresses Thankfully, the networking staff doesn’t need to type altogether those MAC table entries. Instead, the switches do their second main function: to learn the MAC addresses and interfaces to place into its address table. With an entire MAC address table, the switch can make accurate forwarding and filtering decisions as just discussed. Switches build the address table by listening to incoming frames and examining the source MAC address within the frame. If …

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Overview-of-Network-Layer Functions

Overview of Network Layer Functions

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Overview of Network Layer Functions Many protocol models have existed over the years, but today the TCP/IP model dominates. And at the network layer of TCP/IP, two options exist for the most protocol around which all other network layer functions revolve: IP version 4 (IPv4) and IP version 6 (IPv6). Both IPv4 and IPv6 define the same sorts of network layer functions, but with different details. This chapter introduces these network layer functions for IPv4, …

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