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Home Archives for cloud, edge and everything in between
A quick guide to a solid DNS configuration using AWS Route 53 (and how to configure DNS using any other DNS service)

Anna E Kobylinska 2018-08-23 3 Comments

A quick guide to a solid DNS configuration using AWS Route 53 (and how to configure DNS using any other DNS service)

The most difficult thing about configuring the DNS settings for a domain is designing a plan of action: making up one’s mind about what kind of services you envision and how you want to route the traffic. Here’s a primer on how to configure DNS using Route 53 or any other service.

[Read more…]

Filed Under: cloud, edge and everything in between, cybersecurity and cyber warfare Tagged With: AWS, DNS, EIP, IPv4, MFA

How to use rsync to transfer files and directories between hosts

Cloud Insidr 2018-08-22 Leave a Comment

How to use rsync to transfer files and directories between hosts

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.

[Read more…]

Filed Under: administration and orchestration, cloud, edge and everything in between, cybersecurity and cyber warfare Tagged With: AMI, AWS, remote host, rsync, secure connection, SSH

How to upgrade the Linux kernel in Fedora 28/29 quickly and easily

Cloud Insidr 2018-06-17 Leave a Comment

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.

[Read more…]

Filed Under: Linux, Uncategorized Tagged With: CentOS, Fedora, Fedora 28, Linux, Linux Kernel, RHEL, upgrade

How to expand the EBS boot volume of a Linux-based EC2 instance

Cloud Insidr 2018-06-10 Leave a Comment

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.

[Read more…]

Filed Under: tips and tricks Tagged With: AMI, AWS, EC2, Linux

Fixing DNS: why you need a Trusted Recursive Resolver and DNS over HTTPS

Cloud Insidr 2018-06-06 Leave a Comment

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.

[Read more…]

Filed Under: cybersecurity and cyber warfare, DNS, encryption Tagged With: DNS, DNS checks, DNS over HTTPS, encryption

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