How to install Let’s Encrypt on CentOS 7 with Apache

Today, we will show you, How to install Let’s Encrypt on CentOS 7 with Apache. Let’s Encrypt is a completely free and automated, new certificate authority developed by the Internet Security Research Group (ISRG) and recognized by all major browsers. They make it a breeze to set up TLS certificates for your web server. And for free! Let’s Encrypt is supported by major players like Mozilla, Akamai, Cisco, the EFF and managed by the Linux Foundation. Let’s Encrypt provides free, automatic and secure certificates. The website owners can easily obtain security certificates within minutes, enabling a safer web experience for all.In today’s tutorial we are going to learn how to install a Let’s Encrypt SSL certificate on CentOS 7 with Apache, and configure the certbot for automatic renewal.

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How to open ports in Cent OS

A TCP/IP network connection may be either blocked, dropped, open, or filtered. These actions are generally controlled by the IPtables firewall the system uses and is independent of any process or program that may be listening on a network port. This post will outline the steps to open a port required by a application.

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Cum sa stergi versiunile vechi si nefolosite din CentOS/RHEL

În acest articol, vom arăta cum să eliminați imaginile de kernel vechi / neutilizate de pe sistemele RHEL / CentOS. Cu toate acestea, înainte de a elimina un kernel vechi, este important să vă mențineți kernelul la zi; instalați cea mai recentă versiune pentru a utiliza funcțiile de kernel noi și pentru a vă proteja sistemul de vulnerabilitățile descoperite în versiunile mai vechi.

Pentru a instala sau a actualiza cea mai recentă versiune de kernel în sistemele RHEL / CentOS, citiți acest ghid: Cum sa facem update de kernel la CentOS 7.

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