This past February, thousands of ESXi servers were affected by a new ransomware attack (called ESXiARGS) that targeted the servers through a security flaw (tracked as CVE-2021-21972, CVE-2021-21973 and CVE-2021-21974), which is caused by a …
I recently logged into the Admin mail account of a Zimbra mail server I manage to see if there was anything noticeable to look at. It’s not an account I log in much, since it …
On September 30, 2021, the Let’s Encrypt DST Root CA X3 certificate expired. This certificate was used to sign all SSL certificates generated by Let’s Encrypt. To avoid serious problems, Let’s Encrypt created a new …
I recently set up a new server for a WordPress website. I prepared it following the same process as always: Ubuntu 20.04 as the operating system, Nginx as the web server, PHP 7.4, and MariaDB …
I recently came accross a strange issue with Postfix and Virtualmin on every website hosted on my server when someone tried to send a mail using a contact form. The websites stated that the email …
