How to get a lets'encrypt wildcard certificate?

Some time ago it became possible to get wilсard cert from Let's Encrypt for free.
Finally, today you can get a wildcard cert. And so, we will tell you how it can be done.


Quickly copy files from server to server in the background. Rsync and scp.

To quickly copy files directly from one server to another, there are many utilities. Consider the most popular ones.

Rsync and scp.

The article is not for experienced administrators. And for programmers and novice administrators who are faced with administrative tasks.


How to install promox 3 on a clean debian 7 (Wheezy) server

The workflow for installing the proxmox 3 virtualization system on a clean debian 7 (Wheezy) OS server.