Hi,
I am currently running three small relays on two different services/ISPs.
I have two somewhat unrelated questions:
* given costant resource (i.e. euro/month) I can afford to run relays
is it in general better to run one bigger relay or, say, two smaller
ones.
One bigger relay - more bandwidth, less latency, and less work for you, unless… you are providing diversity of locations (geographic or AS), operating systems, or configurations with your multiple relays.
* are there any tools to manage multiple tor node? For example, if I
want to check if there are security updates I have to login separately
in each system and launch them manually. Is this the way I should do
this or there are ways to monitor the status of all my nodes and
maintaing them as a whole.
Debian has an unattended-upgrades package that will even restart the machine when needed, if configured to do so.
It will also send emails every time it upgrades a package.
You might want to consider also doing Tor version upgrades this way, but I’ve found that it's best to do them manually but regularly, then check they worked. Others might have better experiences with automated Tor upgrades.