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Home Archives for Linux
How to set up remote access via SFTP to a web server root directory on RHEL/CentOS/Fedora using key pairs

Cloud Insidr 2016-11-27 Leave a Comment

How to set up remote access via SFTP to a web server root directory on RHEL/CentOS/Fedora using key pairs

Your users want to access a web server instance as a staging or production environment for DevOps… They want access to the web server document root of the sites they manage. Your job is to maintain the integrity of the whole system in terms of cyber security.

If you happen to be running a web server on Linux—for example in EC2 on Amazon AWS—and need to provide site owners remote access in a secure and responsible manner, here is how to do it.

[Read more…]

Filed Under: administration and orchestration, cybersecurity and cyber warfare, encryption, Linux, NGINX, SELinux, web servers in the cloud Tagged With: DevOps, Dreamweaver, Linux, NGINX, SELinux, SFTP

A fatal flaw in TCP on Linux hijacks HTTPS connections. Here is the fix

Cloud Insidr 2016-08-12 Leave a Comment

A fatal flaw in TCP on Linux hijacks HTTPS connections. Here is the fix

If you are running Linux kernel 3.6 or newer, anyone in the world on a network that allows IP spoofing can hijack your encrypted communications in less than a minute, with a success rate of 90%.

Here is how to fix it.

[Read more…]

Filed Under: alerts, cloud, edge and everything in between, cybersecurity and cyber warfare, encryption, Linux Tagged With: cyber security, Linux, TCP

How to Fix PHP Session Errors while Respecting Security with Correct Permissions

Cloud Insidr 2015-11-25 Leave a Comment

How to Fix PHP Session Errors while Respecting Security with Correct Permissions

Have you ever seen one of these weird redirects? WordPress, for example, may refuse to show the log-in page, leaving you out of its admin interface for good. Here is what to do about it.

[Read more…]

Filed Under: Uncategorized, web servers in the cloud Tagged With: error, Linux, log, NGINX, permissions, PHP, php-fpm, session, session hijacking

How to migrate your web services from any hosting provider to AWS

Cloud Insidr 2015-02-25 Leave a Comment

How to migrate your web services from any hosting provider to AWS

Leaving your current web hosting provider for the cloud experience may feel rather scary, but in reality, it is a liberating experience.

Just think of all the freedom you gain to run your web services your way: the ability to use any DNS provider of your choice, any certificate authority (such as, most notably, the disruptive force of Letsencrypt), install software to your heart’s content, scale up and out on demand, in other words, be in charge of your own services and infrastructure. Here is a quick tutorial on how to make the leap.

[Read more…]

Filed Under: cloud, edge and everything in between, NGINX, web servers in the cloud Tagged With: AWS, EC2, Linux, NGINX, WordPress

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