Assume my local machine has made a successful sftp connection to a remote machine with IP 152.45.27.90 A file named shareme.txt in the folder /share on the remote machine needs to be copied to my local machine in the folder /home/user/demos/ Using sftp, which command will download the file from the remote machine and place it in the specified local folder? O put /home/user/demos/ /share/shareme.txt
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- The following program sets up a single client/server connection. When the client connects, the server reads any incoming data as text and prints it out one line at a time. If the server receives the string “shutdown”, then it closes the socket and exits. Download this program Download this program into GCC and run the code. Then update your code to allow for the server to manage concurrent connections on the same port. Use IP address 127.0.0.1. Page of 3 ZOOM /* Server code */ #define BUF_SIZE 1024 #define LISTEN_PORT 8080 int main(int argc, char *argv[]) { int sock_listen, sock_recv; int i, addr_size, bytes_received; int incoming_len; int recv_msg_size; struct sockaddr_in my_addr, recv_addr; int select_ret; fd_set readfds; struct timeval timeout={0,0}; struct sockaddr remote_addr; char buf[BUF_SIZE]; /* create socket for listening */ sock_listen = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP); if (sock_listen < 0) { printf("socket() failed\n"); exit(0); } /* make local address…Assume Host C is the owner of a Web server that can be accessed via port 80. Assume that A and B are the concerned web hosts. Is the same Host C socket used to forward each and every request? All of the sockets will utilize port 807 by default if the server employs persistent connections and requests are split across two different sockets. How about a discussion and an argument?Assume Host C has a Web server on port 80. Assume this Web server accepts requests from Host A and B and allows persistent connections. Is Host C sending all requests over the same socket? Do they both have port 80 if they're sent over separate sockets. It's worth discussing.
- On a basic Linux server following services are required Assign a dynamic IP address to a client on interface eth0 Find out the path of the packet to the server on (172.16.10.19), put your system in promiscuous mode. Apply forsetgid and sticky permissions on /home/Ali/programming Rename file present on Desktop from “file.txt” to “newfile.txt” Find out the number of IP addresses used by google.com Display all user accounts and groups in a Ubuntu system Display all files in /opt/ starting with s and have a .txt extension.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.1. Persistent HTTP requires?a. 2(round trip times) + file transmission timeb. as little as two RTT for all the referenced objectsc. one file transmission timed. as little as one RTT for all the referenced objects 2. UDP has no connection between client & server?a. RCVR extracts sender IP address and portb. sender explicitly attaches IP destination address and portc. three other answers are incorrectd. no handshaking before sending data 3. A socket in computer networks is correctly defined as?a. A combination of IP address and port number, connected by a "/" symbolb. sender explicitly attaches IP destination address and portc. RCVR extracts from the socket, sender IP address and portd. A combination of IP address and port number, connected by a"." symbol 4. The data link layer provides?a. the functional and procedural means to transfer data between network entities and the means to detect and possibly correct errors that may occur in the link layer.b. the functional and procedural…
- 14. Which of the following fields in a TCP header is used to determine the available capacity of areceiver in bytes?a. Receive bufferb. Receive windowc. Sender cannot know the available capacity of the receiverd. Congestion windowe. Sliding windowCreate 2 new virtual machines and perform clean installation of CentOS 7 Linux Server with GUI on both machines. Your local Subnet number is Subnet# 192.168.200. ………. /28 The first Linux Server will have the following characteristics: Host Name: linuxsrvXX (where XX is two last digits of student1 number) Static IP Address: For server’s IP Address, use the first number from available range of hosts addresses Connect first Linux Server to Internet Install a DHCP Package from Internet using yum command. Disconnect Linux Server’s Internet access. Set Static IP Address: For DHCP server’s IP Address, use the first number from available range of hosts addresses Create a DHCP Pool for 10 Computers/Client PCs from the given Subnet Number The second linux Computers will have the following characteristics: Host Name: Linuxclient-XX (where XX is two last digits of one student2 number) IP Address: It will obtain IP Address from DHCP ServerLet's pretend Host C is running a Web server on port 80. Suppose this Web server allows both Hosts A and B to make persistent connections. Is it possible that Host C is sending several requests over the same socket? Does port 80 exist in each of these connections if they are being sent through separate sockets? You should discuss and elaborate on this.
- Assume Host C runs a Web server on port 80. Assume that this Web server accepts requests from Hosts A and B and that persistent connections are enabled. Is Host C sending all of the requests through the same socket? Do they both have port 80 if they're broadcast via distinct sockets? It's something you ought to discuss and explain.Assume that Host C's Web server operates on port 80. Assume this Web server allows requests from A and B and persistent connections are enabled. Does Host C deliver all requests using a single socket? If they're broadcast over different sockets, do they both have port 80? It is something you should discuss and clarify.n this assignment, you will develop a simple Web server in Python that is capableof processing only one request. Specifically, your Web server will(i) Create a connection socket when contacted by a client (browser)(ii) Receive the HTTP request from this connection(iii) Parse the request to determine the specific file being requested(iv) Get the requested file from the server’s file system(v) Create an HTTP response message consisting of the requested filepreceded by header lines(vi) Send the response over the TCP connection to the requesting browser.If a browser requests a file that is not present in your server, your server shouldreturn a “404 Not Found” error message.Your job is to code the steps above, run your server, and then test your server bysending requests from browsers running on different hosts. If you run your serveron a host that already has a Web server running on it, then you should use a differentport than port 80 for your Web server. Make sure to test your program…