How will you implement security in the Linux systems?

How will you implement security in the Linux systems?

How to secure your Linux server

1. Only install required packages.
2. Disable the root login.
3. Configure 2FA.
4. Enforce good password hygiene.
5. Server-side antivirus software.
6. Update regularly or automatically.
7. Enable a firewall.
8. Backup your server.

How do I connect to a remote server in Linux?

How to Use SSH to Connect to a Remote Server in Linux or Windows

1. Step 1: Launch the Destkop Connection Unit.
2. Step 2: Enter the Remote Hosts IP Address or Name.
3. How to Find the IP Address and Host Name.
4. Step 3: Entering the RDP Credentials and Finalizing the Connection.

How do I remote desktop from Linux to Linux?

To enable remote desktop sharing, in File Explorer right-click on My Computer → Properties → Remote Settings and, in the pop-up that opens, check Allow remote connections to this computer, then select Apply.

What does SSH do in Linux?

SSH Command in Linux The ssh command provides a secure encrypted connection between two hosts over an insecure network. This connection can also be used for terminal access, file transfers, and for tunneling other applications. Graphical X11 applications can also be run securely over SSH from a remote location.

How do I start SSH on Linux?

Linux start sshd command

1. Open the terminal application.
2. You must log in as root.
3. Use the following commands to start the sshd service: /etc/init.d/sshd start. OR (for modern Linux distro with systemd)
4. In some cases, the actual script name is different. For example, it is ssh.service on a Debian/Ubuntu Linux.

What is PS EF command in Linux?

This command is used to find the PID (Process ID, Unique number of the process) of the process. Each process will have the unique number which is called as PID of the process.

How do I find system processes in Linux?

Check running process in Linux

1. Open the terminal window on Linux.
2. For remote Linux server use the ssh command for log in purpose.
3. Type the ps aux command to see all running process in Linux.
4. Alternatively, you can issue the top command or htop command to view running process in Linux.

How do I grep a process in Linux?

Procedure to find process by name on Linux

1. Open the terminal application.
2. Type the pidof command as follows to find PID for firefox process: pidof firefox.
3. Or use the ps command along with grep command as follows: ps aux | grep -i firefox.
4. To look up or signal processes based on name use:

How do you kill a process in Linux?

1. What Processes Can You Kill in Linux?
2. Step 1: View Running Linux Processes.
3. Step 2: Locate the Process to Kill. Locate a Process with ps Command. Finding the PID with pgrep or pidof.
4. Step 3: Use Kill Command Options to Terminate a Process. killall Command. pkill Command.
5. Key Takeaways on Terminating a Linux Process.

How do I start a process in Linux?

Starting a process The easiest way to start a process is to type its name at the command line and press Enter. If you want to start an Nginx web server, type nginx. Perhaps you just want to check the version.

What is the init process in Linux?

In Unix-based computer operating systems, init (short for initialization) is the first process started during booting of the computer system. Init is a daemon process that continues running until the system is shut down.

How do I show my screen in Linux?

Basic Linux Screen Usage

1. On the command prompt, type screen .
2. Run the desired program.
3. Use the key sequence Ctrl-a + Ctrl-d to detach from the screen session.
4. Reattach to the screen session by typing screen -r .

What are the types of processes in Linux?

There are two types of Linux process, normal and real time. Real time processes have a higher priority than all of the other processes. If there is a real time process ready to run, it will always run first. Real time processes may have two types of policy, round robin and first in first out.

What are the different types of shells in Linux?

Shell Types

• Bourne shell (sh)
• Korn shell (ksh)
• Bourne Again shell (bash)
• POSIX shell (sh)

What is Linux zombie process?

A zombie process is a process whose execution is completed but it still has an entry in the process table. Zombie processes usually occur for child processes, as the parent process still needs to read its child’s exit status. This is known as reaping the zombie process.

Which Linux command is used to manage processes?

You need to use the ps command. It provides information about the currently running processes, including their process identification numbers (PIDs). Both Linux and UNIX support the ps command to display information about all running process. The ps command gives a snapshot of the current processes.

What is the use of top command in Linux?

top command is used to show the Linux processes. It provides a dynamic real-time view of the running system. Usually, this command shows the summary information of the system and the list of processes or threads which are currently managed by the Linux Kernel.

How do I see background processes in Linux?

You can use the ps command to list all background process in Linux. Other Linux commands to obtain what processes are running in the background on Linux. top command – Display your Linux server’s resource usage and see the processes that are eating up most system resources such as memory, CPU, disk and more.