Web Servers

»»Web Servers

Webmin / Virtualmin / Usermin Uses Wrong / Incorrect / Outdated SSL Certificates

Webmin and its modules or user interfaces, Virtualmin, Usermin and Cloudmin, supports usage of SSL certificate for HTTPS access to the administration control panel UI in order to fence off network sniffing attack that could capture your [...]

No iptables / ip6tables Bootup Action Was Found at Webmin Networking in CentOS / RHEL / Fedora 7

When going to Linux Firewall module in Webmin Networking (which also used by Virtualmin and Cloudmin), the following error message is displayed: No iptables bootup action was found, indicating that the IPtables package is not installed on [...]

How to Use Let’s Encrypt SSL Certificate Automatically in Virtualmin / Webmin

Since Webmin 1.78 and Virtualmin 5.0, Webmin can request an SSL certificate for itself from Let's Encrypt, the free, automated and open certificate authority (CA), if you have the letsencrypt client command installed. The built-in Let's Encrypt [...]

How to Install Let’s Encrypt in CentOS / RHEL / Fedora / FreeBSD / OpenBSD / Ubuntu / Linux

Let's Encrypt is a free, automated, and open certificate authority (CA) that provides Domain Validated (DV) certificates essential for SSL, which enables the HTTPS secure connection that encrypts data transfer. . The DV certificate verifies that you [...]

Apache HTTPD Address Already In Use: Make_Sock: Could Not Bind to Address 80 / 443 Error

When starting or restarting Apache HTTPD server which was previously working properly, error occurred and the Apache HTTPD service could not be started. One of the following error message or similar message is displayed and recorded in [...]