Unix, Linux, DevOps , Cloud computing and BigData Knowledge-Base


RHEL5/6 Interview Questions : SELinux

1. What is the point of using SELinux? 1a. SELinux provides enhanced granular security for the Linux operating system. 2. What are SELinux Booleans? 2a. SELinux Booleans provide restrictions to different aspects of a service. 3. What command can you use to change the context of...


RHEL5/6 Interview Questions : Networking

1. What command displays your current interfaces and IP address? 1a. ifconfig 2. What does ifconfig netmask eth1 do? 2a. This command sets the eth1 interface to have a static IP address of with a netmask of 3. What command can you...


Securing DHCP server with Firewall ( RHEL5/6)

Before any of the clients can start obtaining an IP address from the DHCP server, you need to deal with the security requirements for the DHCP server. They include adding a firewall rule with iptables and disabling any SELinux options that prevent the DHCP service from...

Page 51 of 85

[contact-form to='ramkumar.ramadevu@gmail.com' subject='New Learning Request Submitted'][contact-field label='Name' type='name' required='1'/][contact-field label='Email' type='email' required='1'/][contact-field label='Learning Request' type='textarea' required='1'/][contact-field label='Are you Looking for ' type='radio' required='1' options='Paid Training,Free Training'/][/contact-form]

What is your Learning Goal for Next Six Months ? Talk to us