Attackers frequently use ACK scans to circumvent a firewall or other filtering tools. During a NULL scan, all packet flags are enabled. The most recent versions of Nessus Server and Client are compatible with Windows, Mac OS X, FreeBSD, and the vast majority of Linux variants.
<h3>What is ack scan ?</h3>
- ACK scans are used to identify hosts or ports that have been blocked or are resistant to other types of scanning. An attacker uses TCP ACK segments to learn about firewall or ACL configuration.
- Attackers probe our router or send unsolicited SYN, ACK, and FIN requests to specific UDP/TCP ports.
- TCP ACK Scan sends an ACK message to the target port to determine whether or not it is filtered.
- On unfiltered ports, a RST reply packet will be sent for both open and closed ports. Filtered ports will either generate no response or generate an ICMP reply packet with an unreachable destination.
- The TCP ACK scanning technique attempts to determine whether a port is filtered by using packets with the ACK flag set.
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The web pages contain a special kind of text that allowed to respond to the user input is termed hypertext.
<h3>What are web pages?</h3>
The web pages are given as the web server delivery with the displaying of the web browser. It is given with the HTML language and comprises several resources and information.
The web page document is accessed with the presence of the hypertext or the hyperlink that enables the user selection to respond to it.
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B. by right clicking all messages in the junk email folder
Answer:
why do u want to do that i have an acc i dont even use that is so good with so much uc and other skins on it
Explanation:
When there is a missing DLL file, the computer will display error messages. The correct option is B.
<h3>What is a DLL file?</h3>
DLL is dynamic link library is a concept of Microsoft implementation of the shared library concept of Microsoft Windows. This library contains codes and data that can be use in making a program.
Thus, the correct option is B. the computer will display error messages.
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