FREE RHCE Network Services and Security Questions and Answers
What is the Samba directive that limits access to systems on the example.org network?
The hosts allow directive in Samba is used to restrict access to systems based on their IP addresses or hostnames. In the context of the question, hosts allow .example.org allows access to systems on the example.org network. This directive is specified in the Samba configuration file (https://fb92810a.delivery.rocketcdn.me/etc/samba/smb.conf) to control which hosts or networks can connect to Samba shares. Understanding and correctly configuring Samba directives like hosts allow is essential for managing network access controls.
How do you log in to a remote host using smbclient?
To login to a remote host using smbclient:
* Use the command smbclient //hostname/share -U username%password.
* Replace hostname with the name of the remote host (localhost in this case).
* Replace share with the name of the shared directory (shared in this case).
* -U specifies the username (user01) and password (pass) for authentication.
This command connects to the specified Samba share (//localhost/shared) using smbclient, allowing the user (user01) to access files and directories on the remote host. Understanding how to use smbclient for accessing Samba shares is essential for network services administration.
What is the SELinux file type appropriate for shared Samba directories?
In SELinux (Security-Enhanced Linux), the samba_share_t file type is appropriate for shared Samba directories. SELinux contexts define the security attributes assigned to files, processes, and other system resources. The samba_share_t type is specifically designed to allow Samba to share directories while enforcing SELinux policies that enhance system security. Understanding SELinux contexts and applying appropriate types is crucial for configuring secure Samba file sharing.
What is the relevant SELinux boolean associated with the sharing of home directories on Samba?
The samba_enable_home_dirs SELinux boolean is relevant for enabling the sharing of home directories on Samba. SELinux booleans are binary settings that can be toggled to enable or disable specific system functionalities, such as allowing Samba to access and share home directories securely. Understanding and correctly configuring SELinux booleans is crucial for managing Samba file-sharing configurations securely.
What command enables the SELinux boolean for anonymous FTP uploads?
To enable the SELinux boolean allow_ftpd_anon_write for anonymous FTP uploads:
*Use the command setsebool -P allow_ftpd_anon_write on.
*This command sets the SELinux boolean (allow_ftpd_anon_write) to allow anonymous users to write (upload) files via FTP.
*The -P option makes the change persistent across reboots.
Understanding how to manage SELinux booleans is crucial for configuring secure services like FTP.
How do you encrypt an existing file using Ansible Vault?
* ansible-vault: Command used for managing encrypted files in Ansible.
* encrypt: Option within ansible-vault used to encrypt files.
* secret.yml: File name or path of the file to be encrypted.
Encrypting files using Ansible Vault ensures sensitive data such as passwords, keys, or configurations are securely stored.
Which Ansible module is used to configure network settings?
The nmcli module in Ansible is used to manage network connections using NetworkManager on target hosts.
It allows the configuration of network interfaces, connections, IP addresses, DNS settings, and more.