Chapter 10, Problem 3DE

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.

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…

For this lab, you will write a shell script called nethelper.sh that: 1. Reads in a list of hosts from a host file that is passed in as a parameter 2. Repeatedly, until the user selects quit (q), ask the user if the user wants to ping a host or look up a hosts DNS name 3. Once the user has selected an action, prompts the user for which host and then applies the action. Note that for the ssh action, the script must also ask the user for the user name that will be used to log into the host. Step 1 To accomplish step 1 above (reading in a list of hosts from a file), you will write a function called read_hosts. Functions in bash scripts have the following syntax: function name { # function body goes here } You can put any bash syntax inside the function as the function body. Also, note that the parameters to a function act like the parameters passed in at the command line. In other words, the parameters to the function are place in variable named $1, $2, and so on. So, how do you read the…

A server was locally running on a system at port 2000. What changes do you need to make in the port ID when you are deploying the server with Heroku. Make the changes such that your server can work both locally as well as with Heroku,

1. Which of the following is not usually implemented in the server-side code?   a. Routing Code b. All of these are usually implemented in Server-Side Code c. Authentication Logic Code d. User Interface Code   2. True or False. The fetch method can only be used to make GET requests. a. True b. False   3. True or False. Node.js is a asynchronous event-driven framework. This means it can only handle one event at a time a.True b. False   4. When using the router level middleware in express, what must match for the Handler Method to be executed? a. None of these b. Path and URL c. Request and Response d. Method and Path

You, as a network administrator, plan on running a trial for a beta version of an application. The idea is to install the application on a guest machine. You plan on doing this because you would rather have the untested software cause errors on the guest machine than on the host. Which of the following will you use in this instance?     A BPDU guard   CARP   FCoE   VirtualBox

A server was locally running on a system at port 2000. What changes do you need to make in the port ID when you are deploying the server with Heroku.