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Home Archives for cloud, edge and everything in between administration and orchestration Linux
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 Build a SELinux Module for MariaDB

Cloud Insidr 2016-07-24 Leave a Comment

How to Build a SELinux Module for MariaDB

When updating MariaDB, the popular successor to MySQL, you may, once upon a time, hit a roadblock which you won’t be able to track down in the error log. Even though web visitors get to see the plain text complaint “Can’t connect to the database”, the MariaDB server will be running just fine. Silent errors should be reason enough to suspect SELinux, the oftentimes dreaded and despised but equally popular Security-Enhanced Linux kernel module.

[Read more…]

Filed Under: administration and orchestration, cloud, edge and everything in between, cybersecurity and cyber warfare, databases, Linux, SELinux Tagged With: MariaDB, SELinux

How to Install PHP 7 on Fedora, RHEL, CentOS 7 — the Red Hat family

Filipe Martins 2015-12-09 Leave a Comment

How to Install PHP 7 on Fedora, RHEL, CentOS 7 — the Red Hat family

Installing PHP on the Red Hat family—Fedora, RHEL, CentOS 7—is a must for cyber security and it’s not rocket science. With a few easy steps, you too can bring your PHP based web applications to the next level.

[Read more…]

Filed Under: administration and orchestration, Linux, NGINX, php-fpm, SELinux, web servers in the cloud Tagged With: CentOS, dnf, Fedora, NGINX, PHP 7, php-fpm, Red Hat, remi repo, repo, RHEL, SAPI

The LEMP stack: NGINX, MariaDB/MySQL, PHP 7.x on RHEL/Fedora/CentOS with SELinux

Filipe Martins 2015-12-07 6 Comments

The LEMP stack: NGINX, MariaDB/MySQL, PHP 7.x on RHEL/Fedora/CentOS with SELinux

The setup of the LEMP stack (NGINX, MariaDB or MySQL, and PHP) has many caveats. They can impact both performance and security.

Here is how to LEMP (not limp along!).

[Read more…]

Filed Under: cloud, edge and everything in between, cybersecurity and cyber warfare, Linux, NGINX, SELinux, web servers in the cloud Tagged With: MariaDB, MySQL, NGINX, permissions, PHP 7, php-fpm, root, SELinux

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