Since this page was originally written certbot has improved significantly to the point where you should be able to use it straight out of the box.  Information below the warning has been left here to help troubleshoot if you run into difficulties rather than anything but if you install certbot with the apt then you […]

Reverse proxy This is not something that you can configure on your own server because it needs to be done by your isp.  In order to be compliant you can only have one reverse lookup so this is the fqdn of your mail server rather than any of the domains that you host mail for, […]

Rather than configuring a separate router, if your server has 2 or more Ethernet ports then it is possible to use it as a router. In order to do so you need to set up your isp supplied router in modem mode (which you can do easy enough by just assigning the address of your […]

I like to keep postgresql data and mail on completely separate independent partitions. If you are installing Debian from scratch and you use LVM with separate partitions for /home /var and /tmp (RECOMMENDED) then you can use the lvm tools to resize your /home partition to create space for /mailstore and /pgsql. If it is […]