net4VISIONS Blog (Page 2)

net4VISIONS Blog

Enable SSL/TLS in amavis for secure connections

Enable SSL/TLS in amavis for secure connections

If you have a multi-host email server setup or you won't trust all admin users, you should connect the TCP sockets of amavis encrypted with TLS. Or else people could sniff the email content transmitted from/to SMTP server to/from Amavis over the network. Amavis needs some

Create docker image from scratch

What is this about Docker Docker is a Platform-as-a-Service (PaaS) solution to run all kinds of applications in isolated containers. More information is available at https://www.docker.com/community-edition. Docker images Docker stores application data in so called images. These images provide the full runtime environment to execute the

XFCE Tumbler patch

XFCE Tumbler patch

I'm using XFCE Desktop as my working/development environment. It is fast and has all features I need. Allmost... There is a thumbnail service called Tumbler which creates these neat thumbnail icons for image and pdf files and some more files with viewable content. To create these thumbnails

TypeError: failed to fetch

TypeError: failed to fetch

This can be caused because of browser engine doesn't detect offline state and web resources are nevertheless not fetch-able. This could happen because of server downtime or routing problems. In Workbox the responsible code looks like this... function s(t, e, i) { fetch(t).then((function(n) { 404