Ubuntu Linux Server Administration

What is OpenSSH?

• OpenSSH is a freely available version of the Secure Shell (SSH) protocol family of tools that provides a secure and encrypted method for remote control and data transfer between computers.
• MSDB
• Master

Why are traditional tools like rcp and telnet considered insecure for remote operations?

• Traditional tools like rcp and telnet transmit user passwords in cleartext, making them vulnerable to potential eavesdropping or unauthorized access.
• MSDB
• Master

Traditional tools like rcp and telnet transmit user passwords in cleartext, making them vulnerable to potential eavesdropping or unauthorized access.

• OpenSSH consists of a server daemon (sshd) and client tools. The server daemon runs on the remote computer and facilitates secure remote control, while the client tools are used on the local computer to connect and interact with the remote system.
• Rebuild
• Reorganize

How does OpenSSH ensure security during data transmission?

• OpenSSH utilizes encryption and secure protocols to protect sensitive data during transmission, ensuring that passwords and other sensitive information are not exposed
• Runbook
• Schedule

How does OpenSSH contribute to improving remote operations?

• OpenSSH effectively replaces insecure legacy tools like rcp and telnet, providing a more secure and reliable alternative for remote operations, allowing users to securely access and manage remote systems, execute commands, and transfer files over a network.
• Subscription
• User

What are some of the main uses of OpenSSH in various environments?

• OpenSSH is widely used for secure remote administration and secure file transfers in various environments, allowing users to manage remote systems securely and perform tasks like executing commands and transferring files.
• Target Group
• Management Group

What is LDAP, and what does it stand for?

• LDAP stands for Lightweight Directory Access Protocol. It is a protocol used for accessing and managing directory information services over a TCP/IP network.
• JSON
• C#

What is the structure used to organize information in LDAP, and what is it called?

• The structure used to organize information in LDAP is called the Directory Information Tree (DIT), which forms a hierarchical tree-like structure.
• Parameter
• Variable

What is an entry in LDAP, and what does it represent?

• An entry in LDAP represents a single unit of data within the directory. It contains a collection of attributes that describe a specific entity, such as a user, group, or device.
• dependsOn
• concat

What is an attribute in LDAP?

• An attribute in LDAP is a piece of information associated with an entry. It consists of a key (name/description) and one or more values. Attributes include information such as user names, email addresses, phone numbers, and group memberships.
• A mail profile
• An agent job