New DNS servers have been added to the server configuration of your DHCP server. What is the most effective way for your consumers to receive the most recent settings? * Double-restart your machine. On the client, use the command ipconfig /registerDNS Wait for the DHCP client's lease to be renewed. O On the client, use the command ipconfig /renew. Delete the server's DNS cache.

New DNS servers have been added to the server configuration of your DHCP server. What is the most effective way for your consumers to receive the most recent settings? * Double-restart your machine. On the client, use the command ipconfig /registerDNS Wait for the DHCP client's lease to be renewed. O On the client, use the command ipconfig /renew. Delete the server's DNS cache.

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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Step 1: Write a script to find and print your local IP address Use the following code: import socket hostname = socket.gethostname() local_ip = socket.gethostbyname(hostname) print(local_ip) Step 2: Write a script to find and print your OS platform and release (for example, "Windows version 10") Use the following code: import platform print(platform.system ()) print(platform.release ()) Step 3: Write a script to find and print a "ping sweep"? Use the following code: import os my_ip="192.168.10.103" # sub your ip address os.system('ping -n 4 {}'.format(my_ip)) Step 4: Write a script to find and print current day and time import time now = time.localtime() print(time.strftime("%m/%d/%Y %I:%M:%S %p", now)) Extra Credit: Add code to Step#4 which prints a greeting, either "good morning", "good afternoon", "or good evening", depending on the current time.
Assume that you are currently logged into S1. Configure the port security on the LAN interface FastEthernet 0/19 on switch S1 by using the following requirements. Enable the LAN interface FastEthernet 0/19 for access mode. Enable port security on the interface FastEthernet 0/19. Set the maximum number of MAC address allowed on the interface FastEthernet 0/19 to 5. Configure the MAC address 00E0.8F82.DD0C to the interface FastEthernet 0/19. Configure the interface FastEthernet 0/19 to dynamically learn additional MAC addresses and dynamically add them to the running configuration.
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
3) Wireshark run ipconfig /flushdns i start wireshark in filter on DNS IV Load myut.utoledo.edu v Find the DNS messages What is the IP of the DNS Server?
Subject : System and Network Administration Solve the Question : Qusetion : You are the network administrator for the Commtel Telecom Company. Domain controllers are running Microsoft Windows Server 2016. Client computers are running Microsoft Windows 8 Professional. A client reports remotely that he is having problems resolving certain hostnames to IP addresses from his computer. You verify that changes have recently been made to some resource records in the DHCP server. You suspect that there are outdated old entries in the client resolver cache and renewal the IP Address from DHCP. As a network administrator, you observed that this problem is not affecting any other clients on the network. What should you suggest the client to resolve this issue? Explain your answer along with a valid power shell commands.
To configure an OSPF in a single-area internetwork, use the following IOS command? ospf router id router ospf process-id ospf configuration id router process-id
How would you troubleshoot to resolve the following? In your browser, you enter the URL of a website you use daily. After an unusually long delay, you receive a DNS error message that the host does not exist.
Your DHCP server's configuration has been updated to include these new DNS servers. As a whole, what is the best way for your clients to get the new settings? * Perform a double restart of the computer. Enter ipconfig /registerDNS on the client. DHCP clients must wait for the lease to be renewed before continuing to use the network. O Input ipconfig /renew into the client's terminal. Clear the server's DNS cache.
Which file stores the TCP/IP addresses of the DNS servers used to resolve host names ifno DNS servers are specified within the network configuration file for the NIC?a. /etc/hostsb. /etc/host.confc. /etc/resolved. /etc/resolv.conf
To prevent a DHCP server from leasing an IPv4 address that has been manually configured on a computer on the network, you can configure a DHCP server to send one or more ping requests to an IPv4 address before leasing it. a. True b. False ?
#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.