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DMARC

How to set up DMARC

The relentless onslaught of spam continues to drive mail administrators up the proverbial wall. DMARC, the unofficial successor to SPF (Sender Policy Framework), holds the promise of more email legitimacy, but can it deliver? Here is how you can put DMARC to the test.

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How to Activate HTTP/2 with TLS 1.3 Encryption in NGINX for Secure Connections without a Performance Penalty

Are you ready for a better security with no performance penalty? Are you ready for a performance bump that can take you places in search engine land? In other words: now that HTTP/2 reached production-grade maturity, nothing should hold you back. The IoT  revolution will make sure that only the paranoid survive.

mailbox

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.

fixing bugs

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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A quick guide to 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.

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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.

Secretary Nielsen took an aerial survey of areas impacted by the Thomas Fire, the largest wildfire in California history.

TLS 1.3 and its implications for cyber security

SELinux contexts for WordPress

Correcting SELinux security contexts: how to adjust SELinux labels on your file system

Linus Torvalds is back!

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

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How to set up DMARC

Cloud Insidr 2018-12-17 Leave a Comment

How to set up DMARC

The relentless onslaught of spam continues to drive mail administrators up the proverbial wall. DMARC, the unofficial successor to SPF (Sender Policy Framework), holds the promise of more email legitimacy, but can it deliver? Here is how you can put DMARC to the test.

[Read more…]

Filed Under: DNS, mail servers Tagged With: DMARC, DNS, email, SPF

How to Activate HTTP/2 with TLS 1.3 Encryption in NGINX for Secure Connections without a Performance Penalty

Filipe Martins 2018-10-04 5 Comments

How to Activate HTTP/2 with TLS 1.3 Encryption in NGINX for Secure Connections without a Performance Penalty

Grade A+ on Qualys SSL Labs for CloudInsidr.com
Grade A+ on Qualys SSL Labs for CloudInsidr.com

Are you ready for a better security with no performance penalty? Are you ready for a performance bump that can take you places in search engine land? In other words: now that HTTP/2 reached production-grade maturity, nothing should hold you back.

The IoT  revolution will make sure that only the paranoid survive.

[Read more…]

Filed Under: cloud, edge and everything in between, cybersecurity and cyber warfare, web servers in the cloud Tagged With: cipher suites, Diffie-Hellman, ECDHE, FLAME, HSTS, HTTP/2, NGINX, SHA-1, SHA-2, SSL, TLS

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.

[Read more…]

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.

[Read more…]

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

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