The rsync utility can backup files, synchronize directory trees, and much much more, both on the local machine and between two different hosts—via push and pull. Here is how to tame it.
Archives for 2018
How to upgrade the Linux kernel in Fedora 28/29 quickly and easily
As zero-day exploits become increasingly common, keeping the kernel up to date is a top priority.
In CentOS 6.x/7.x and RHEL 6x./7.x, upgrading the Linux Kernel is a painful procedure which requires about a dozen steps. On Fedora, all it takes is a time-saving two-liner. You don’t need to concern yourself with the configuration of the grub boot manager, which is a frequent source of trouble on CentOS and RHEL.
The U.S. is back to #1! – Summit, the fastest supercomputer in the world was engineered with smarts… here is why
The world’s fastest supercomputer is American again. President Donald Trump’s dedication to #MAGA (Making America Great Again) is showing results big time. Chief among them are the Tax Cut and Jobs Act (2017-2018), a booming economy and a growing stock market.
But economic prosperity also needs military might and IT technology that’s worthy of a superpower.
During the sad 8 years of the Obama presidency, the U.S. has ceded the #1 and #2 titles in the TOP500 super computers list to China.
That’s over.
How to expand the EBS boot volume of a Linux-based EC2 instance
This is easier than you probably think: AWS will expand the EBS boot volume of an EC2 instance running Linux automatically when you launch a new instance off of it with the desired capacity.
Here is how it works in more detail.
Fixing DNS: why you need a Trusted Recursive Resolver and DNS over HTTPS
The DNS system is broken. The sorry state of DNS security exposes your server and your end users to a variety of risks. Some of those risks are preventable.