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Home Archives for Cloud Insidr
TLS 1.3 and its implications for cyber security

Cloud Insidr 2018-10-04 Leave a Comment

TLS 1.3 and its implications for cyber security

The rise of Quantum computing and the cloud is rewriting the rules of what constitutes “encrypted” communications — with profound implications for the cyber security of our homeland.

“The cyber threat landscape is shifting in real-time, and we have reached a historic turning point,” said Kirstjen Nielsen, U.S. Secretary of Homeland Security, in a recent statement. “It is clear that our cyber adversaries can now threaten the very fabric of our republic itself.”

Cybersecurity incidents and data breaches of recent years seem to provide evidence of an invisible warfare raging across the industrialized world with financial, energy and communications systems covertly under constant threat. At the same time, the dependence on data integrity and the reliability of critical infrastructures, particularly cyber physical systems in the military, is growing in importance by the day.

[Read more…]

Filed Under: encryption, homeland security, Uncategorized

How to migrate a mail server from one machine to another

Cloud Insidr 2018-09-12 Leave a Comment

How to migrate a mail server from one machine to another

There are two basic ways to migrate a mail server from one machine to another: with and without service downtime.

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Filed Under: mail servers Tagged With: email, mail

How to redirect all http to https in NGINX

Cloud Insidr 2018-09-06 Leave a Comment

How to redirect all http to https in NGINX

When setting up https on an existing server, you need to provide a redirect for all those visitors arriving via http backlinks. Here is how to do this.

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Filed Under: encryption, NGINX Tagged With: HTTPS, NGINX, permanent redirect

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.

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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

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