How can I get more free SSL certificates from Let's Encrypt?
We currently deliver all proServers with the settings for the Let's Encrypt staging servers, as the quota of certificates for subdomains for the domain punkt.de has been used up.To use the Let's Encrypt live servers, the CA must be changed to ...
How do I connect to an IPv6-only proServer (proServer2G)?
If IPv6 connectivity exists, a connection to the proServer2G can be established directly. Otherwise, access must be tunneled through a so-called jump host. In practice, this is usually regulated by a suitable entry in the ~/.ssh/config file of the ...
How do I use a graphical SFTP client such as FileZilla with an IPv6-only proServer (proServer2G)?
First of all, what was written in the article How do I connect to an IPv6-only proServer (proServer2G)? regarding the SSH connection applies: if you have IPv6 connectivity at your workstation, nothing else is necessary - the connection works as usua...
What does the warning The "Strict-Transport-Security" HTTP header is not configured to at least "15552000" seconds. in the server settings mean?
HTTP Strict Transport Security (HSTS) is a standardized security mechanism with which Nextcloud informs the user's browser to only allow encrypted connections for this domain for a defined period of time (at least half a year) in the future.As this ...
How do I update the Elasticsearch configuration after a major update?
Assuming the Elasticsearch version was updated from version 2 to version 5 as part of a patch day.If necessary, check again which Elasticsearch version is installed: