What would be the absolute pathname (for a Linux System) for a file name keybd located under the root directory’s “dev” subdirectory?
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A: Explain the file permission method in the Linux systems with suitable example.
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- What would be the absolute pathname (for a Linux System) for a file name keybd located under the root directory’s “dev” subdirectory?
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- In UNIX-based operating systems, opening a file using a file handle can be done only in the kernel. Give a possible implementation of an NFS file handle for a user-level NFS server for a UNIX system.linuxIn C Programming Add a new built-in path command that allows users to show the current pathname list, append one pathname, or remove one pathname. In your shell implementation, you may keep a data structure to deal with the pathname list. If you do not use execle() or execve() that allows you to execute with your own environment variables, you will need to add it to the “real” PATH environment variable for executables in the path to work correctly. The initial value of path within your shell shall be the pathname list contained in the PATH environment variable. Implement the path command as follows: • path (without arguments) displays the pathnames currently set. It should show pathnames separated by colons. For example, "/bin:/user/bin". • path + ./bin appends the pathname to the path variable. You may assume that only one pathname is added at a time. • path - ./bin removes the pathname to the path variable. You may assume that only one pathname is removed at a time. You may assume…
- Q.2 Explain the file permission method in the Linux systems with suitable example.A small insurance company has an online application system that allows its customers to interactwith the business (e.g., log claims). Backups of the customers’ details are done on a spreadsheetdocument stored on Google drive. However, anyone who has access to the Google drive link ofthe file can view and modify all the customer details. On the backup, the system administratordoes not have visibility of the modifications made on the file. By analysing the scenario above, use the security design principles to criticise theoperations of the small insurance company and propose any two simple controlsthat could influence a good security program.Type the flag-hw number located in the file name in the root directory (/root). what is the linux code for this?
- Linux: The complete path and filename for the Debian Package Management list of repositories is...Linux: The file located in /etc/X11/ that stores the configuration information for X.org is ...Samba is a unix/linux file sharing suite of programs designed to provide Windows interoperablefile and print sharing services. Much of the configuration for the Samba daemon is provided bythe text file smb.conf (renamed to smb.txt for this assignment). After an update was deployed tothree dozen linux servers it was discovered that a couple of configured parameters wereincorrect. Unfortunately, since there are unique aspects to each server, copying the contents of asingle file to each server is not a viable solution. To fix the problem, the IT department mustconnect to each server, edit the smb.conf file, and restart the smbd daemon. To automate thistask, each server will have a Python script copied to it. Then an SSH session will be initiated toeach server from which the script will be executed. Your task is to write the Python script.The invocation of the script must be as follows:python modify.py fileSpec “from” “to”where, modify.py is the name of your script fileSpec is the name…
- When a file is removed, its blocks are generally put on the free list without being zeroed out. From a security perspective, would it be a good idea to clear freed blocks? Why? If so, would it be better to clear the block out before it is put on the free list, or should it be zeroed out before it is used again in another file? Why? Why isn’t this typically done on file systems today?Write a php script to get the filename component of the user entered file path. You may assume that directory only contains python fileGiven a linux file mode (permissions) as an integer, return the permission string that the mode represents. Example 1: mode = 511 511 == Ob111111111 permissons = 'rwxrwxrwx' Example 2: mode = 424 424 == ob110101000 permissions = 'rw-r-x---' def perms(mode): pass
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