Linux tutorials, DevOps guides, shell scripting, automation, and practical how-to content.
### Sub-query The inner query execute first, the outer query deprnds on inner query output. ### Correlated sub-query The outer query execute first, the inner query deprnds on outer query
Below steps are validated on Red Hat Enterprise Linux 7. Auto-logout functionality is mostly used to logout a user if the session is idle for a while. Using this article
In my last article I shared the [**steps to protect GRUB2 from booting kernel without password**](https://www.golinuxcloud.com/protect-grub2-booting-kernel-without-password/) in Linux With Red Hat Enterprise Linux 7 they have introduced a network device
There are multiple types of network which can be configured in [Oracle VirtualBox](https://www.golinuxcloud.com/steps-install-oracle-virtual-box-linux-centos-7/), so before going ahead you must be clear on your requirement. Here let me give you a
We use Linux for many reasons. Security is just one of them, but it’s undeniable that Linux is more secure than other operating systems. Securing our data is especially important
I have already written an article with [step by step instructions and examples to configure a PXE based boot server using http/ftp, dhcp and tftp services to automate kickstart based
I/O scheduling controls how input/output operations will be submitted to storage. There are various algorithms which can be used depending upon the end user requirement.These algorithms can help to reduce
There are many processes in Linux which run on single core while many will switch between different core depending upon the availability. With below two methods you can find if
This is one of the most common error you will face if you are working on unattended Red Hat Linux installation where you have a customised list of Packages. **Error:**
#### Do you have a node where there is a lot of free space available on some logical volume which is unused while there is a different partition which you