3 Use command ipconfig (on Linux ifconfig with equivalent options) to answer the following questions 3.1-3.3. 3.1 Using commands ipconfig /release and then ipconfig /renew. Check again your IPv4 address for this interface that you listed in your answer to Q 2.1. Is your IP address now the same as the one you gave as an answer to Q 2.2. above? 3.2 Use command ipconfig /displaydns. What is displayed here? 3.3 Run ipconfig /flushdns and then ipconfig /displaydns again. Explain what happened when you executed ipconfig /flushdns wwwwwwwwwwwwww

3 Use command ipconfig (on Linux ifconfig with equivalent options) to answer the following questions 3.1-3.3. 3.1 Using commands ipconfig /release and then ipconfig /renew. Check again your IPv4 address for this interface that you listed in your answer to Q 2.1. Is your IP address now the same as the one you gave as an answer to Q 2.2. above? 3.2 Use command ipconfig /displaydns. What is displayed here? 3.3 Run ipconfig /flushdns and then ipconfig /displaydns again. Explain what happened when you executed ipconfig /flushdns wwwwwwwwwwwwww

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Your host has IP address 172.16.1.1. Someone tries to send e-mail from a remote host with IP address 192.168.3.4. If successful, this will generate an SMTP dialogue, consisting of SMTP commands and mail, between the remote user and the SMTP server on your host. Assume that a user on your host tries to send packets for this scenario as shown: Scenario Direction Src Addr Dest Addr Protocol Dest Port Action 1 In 192.168.3.4 172.16.1.1 TCP 25 ? 2 Out 172.16.1.1 192.168.3.4 TCP 1234 ? Rule table: Rule Direction Src Addr Dest Addr Protocol Dest Port Action A In External Internal TCP 25 Permit B Out Internal External TCP > 1023 Permit C Out Internal External TCP 25 Permit D In External Internal TCP > 1023 Permit E Either Any Any Any Any Deny Indicate which packets are permitted or denied, and which rule is used in each case.
The log file shows the IP address as 146.18.2.91. What ping command would he use to determine the hostname of that address? Miguel is investigating suspicious activity he has noted in a log file. He is using the ping command in his investigation. The log file shows the IP address as 146.18.2.91. A ping command displays the hostname as www.xresult.io. What ping command would Miguel use to determine if that host is active by using the hostname instead of the IP address?
In case you are using DHCP (i.e. if the option “Automatically acquire an IP address” is chosen), try to get a new IP address. You can return the IP address back to the DHCP server by using the command ipconfig /release at the command prompt. You can obtain (renew) the private address using ipconfig /renew. Try these commands and explain what happened.
Nmap, short for Network Mapper, is a free, open-source tool for vulnerability scanning and network discovery. Network administrators use Nmap to identify what devices are running on their systems, discovering hosts that are available and the services they offer, finding open ports and detecting security risks. • In the class, we have demonstrated how we scanned metasploitable 2 by using nmap. o Apply 2 commands that we did in the lab#3 for port scanning. o Apply 2 commands that we did in the lab#3 for OS detection. Rubric: 25% for each command. 4 commands = 100%
Which of the following characteristics below are associated with a UDP socket? Check one or more that apply. when contacted, the server will create a new server-side socket to communicate with that client socket(AF_INET, SOCK_DGRAM) creates this type of socket socket(AF_INET, SOCK_STREAM) creates this type of socket data from different clients can be received on the same socket provides reliable, in-order byte-stream transfer (a "pipe"), from client to server provides unreliable transfer of a groups of bytes ("a datagram"), from client to server a server can perform an accept() on this type of socket the application must explicitly specify the IP destination address and port number for each group of bytes written into a socket IC
You have successfully configured Windows Server 2019 as a VPN server using SSTP tunnel type. You allowed another user to dial-in to the server. The user reported that there wasn't any ask for credentials and they were connected automatically with the current user account. How can you explain this behaviour? The VPN profile is has“UseWinlogonCredential” parameter enabled. The admin added machine certificate on the client computer. The admin added user certificate on the client computer. The admin enabled VPN roaming profile on the client computer.
Step2: open Wireshark in the Windows machine and set a filter "tcp". Use hping3 command in Kali Linux to send two packets to the windows machine like the following: - packet nature : tcp - number of packets : 2 - destination port: 110 - Flag SYN active - interval time 100 microseconds write the command here and give a screenshot from Kali and Wireshark capture of those two packets from wireshark can you tell what correspond to tcp destination port 100 ? Step 3: set Wireshark filter now to "udp" to see only udp packets Send two packets to the windows machine like the following: - packet nature : udp - number of packets : 4 - destination port : 67 - interval time 100 microseconds write the command here and give a screenshot from Kali and Wireshark capture of those packets from wireshark can you tell what correspond to udp destination port = 67 ? and what its hexadecimal representation
Execute the following commands in Linux and write their output1. ping :This command is used to test connectivity between two nodes. Ping use ICMP (Internet Control Message Protocol) to communicate to other devices. You can ping host name or ip address using below command.Example: ping www.google.com$ping <server-ip-address>Output:$ping localhostOutput:$ping <other-ip-in-network>Output: 2. hostnameGives the host name of the computer they are logged into. To set the hostname permanently use /etc/sysconfig/network file.$hostnameOutput : 3. traceroute traceroute is a network troubleshooting utility which shows number of hops taken to reach destination also determine packets traveling path $traceroute ip-addressOutput 4. netstatNetstat (Network Statistic) command displays interfaces, connection information, routing table information etc. $netstatOutput : Execute it with the following options and write the output:netstat –t netstat –s –t netstat -i 5. ifconfigifconfig is used for…
Hello I need help creating that script batch file.. thank you for helping Make a loop that counts from 101 to 110. In the loop you will ping each value of the counter using 10.10.10. as a prefix to the IP address. So you will have 10 pings in total, one for each address from 10.10.10.101 to 10.10.10.110 (i.e. from 101 to 110). So the program will do: ping 10.10.10.101 ping 10.10.10.102 ping 10.10.10.103 ... ping 10.10.10.110
Please written by computer source Write a Snort rule to detect a connection attempt on the telnet server which has an IP address 192.168.32.129 and generate alerts for packets with content ‘Telnet!’ directed to the server.
e) Open command prompt in desktop of Saeed Pc and then Ping IP address 10.10.10.1 f) What output you get after running the ping command? Packet sent= Packet Received = Packet loss = g) Add simple PDU at Ali Pc and Saeed Pc in Real-time Mode. h) Last status in Real-time mode is it Successful or NOT? YES /NO i) Add simple PDU at Ali PC in Simulation mode, click capture, and forward. j) What PDU information you notice in Ali Pc? (If you click on ICMP) k) Write down Layer 3 (Out-Layers) information of Ali Pc Answer: + ||
#find all IP addresses for invalid logins, then see which IPs are also used for scanning def compareInvalidIPs(): return True 3. The getinvalidLogins() method should find all IP addresses that are used for both invalid logins AND are blocked by the firewall. To get the invalid logins, you should use the log/auth.log file. For compareInvalidIPs, you should first extract all gzipped versions of auth.log* (meaning auth.log, auth.log.0, auth.log.1, etc.) using the extractLogFiles() method that you implement. Similarly, you will extract all gzipped versions of ufw.log* using the extractLogFiles() method for firewall logs. You will then compare the IPs found in each version. Here is the output for my solution code when executing the if __name__=="__main__" code branch. Your output should be similar.