18 Questions
What is the recommended bit length to increase security when generating an RSA key using ssh-keygen?
4096 bits
What is the purpose of a passphrase when setting up a Passwordless SSH?
To encrypt the private key
Which command is used to upload your public key to a remote Linux server in a Passwordless SSH setup?
ssh-copy-id
What network protocol is commonly used for transferring files between computers on a network?
FTP
When setting up an FTP server, what is an essential step after installing the FTP server software?
Configure the FTP server to meet your needs
Which of the following is a common FTP server software?
FTP Server
What command is used to restart the bind9 service?
sudo service named restart
Which tool is commonly used for packet sniffing?
tcpdump and Wireshark
Which component of a mail server is responsible for routing and delivering email messages between mail servers?
Mail Transfer Agent (MTA)
What is NOT an example of Mail Transfer Agent (MTA)?
FTP
Which file in Postfix contains global configuration settings?
/etc/postfix/main.cf
To set up an FTP server, which command should be used to install the Postfix software?
sudo apt install postfix
What is the purpose of setting up FTP user accounts and permissions?
To control who can access the FTP server and what files they can access
Which command is used to start and enable the VSFTP server on Ubuntu?
sudo systemctl enable vsftpd
What command would you use to allow FTP traffic through a firewall on port 20?
sudo ufw allow 20/tcp
What is SAMBA primarily used for?
To share resources between Linux and Windows systems
In the context of FTP, what does 'lcd /home/dnsuser' command do?
Change local directory to /home/dnsuser
Which software suite allows Linux and Unix-based systems to act as Windows file and printer servers?
SAMBA
This quiz covers topics related to creating and managing FTP users, setting up FTP user accounts and permissions, and testing the FTP server using FTP client software like FileZilla or WinSCP. Additionally, it includes instructions on installing and starting VSFTP server on Ubuntu.
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