On Ubuntu 20.04 the default installation of mumble server doesn’t startup with a certbot letsencrypt certificate. The reason is unsufficent permission to the key files which are owned by root.
Continue reading “How to fix mumble-server startup with letsencrypt certificates on Ubuntu”Category: unix
sendmail_wrapper
sendmail_wrapper.py is a script which can be installed in server systems without an own local mail server.
It acts as a replacement for /usr/sbin/sendmail
and forwards all local system emails (e.g. generated by cron) to a predefined external mail account.
Howto create an encrypted archive of a folder
encryptfolder.sh archives a folder to a tar.gpg file.
Example:
$ encryptfolder.sh small_scripts /tmp
Writing to /tmp/small_scripts.tar.gpg
Continue reading “Howto create an encrypted archive of a folder” Hotfix for courier-mta on Ubuntu 16.04
On Ubuntu 16.04 the installation of the Courier MTA package fails with the following error message:
courier-mta.service is not a native service, redirecting to systemd-sysv-install Executing /lib/systemd/systemd-sysv-install enable courier-mta insserv: script courier-mta: service courier-mta already provided! insserv: exiting now!
Howto: Courier-MTA forward only setup
Folgendes Aufgabenstellung:
- Es gibt ein zentrales Mail-Relay (“Relay”)
- Es gibt einen Rechner mit einem lokalem Mailserver, bei dem smartd-Alarme etc. Cron-Jobs auf dem root-Account aufschlagen (“Server”)
- Die Mails des Rechners sollen an einen Account auf dem Relay geschickt werden, damit sie (zusammem mit den Mails anderer Rechner) gelesen werden