ShankarG's questions

This is a very basic question, but all the answers I can find either relate to WordPress installs or Bitnami installs. I have a plain Debian instance running Nginx.

I would like to set up Fail2Ban. The problem is that Lightsail seems to have its own firewall, configurable via the console. It isn't clear to me how Fail2Ban would work with such a firewall, and I don't want to potentially screw up my install by installing ufw or iptables on top of the already running Lightsail firewall.

How would one handle this situation?

I am running a web server off of a SheevaPlug, and the OS and system are stored on an SD card with an ext3 file system. I know that atime is a major source of writes that wear out flash memory.

This question recommends using the relatime mount option over the noatime one, but it isn't clear if that holds true with flash memory too (where total number of writes is also a concern). This much cited blog on kerneltrap as well as this other question imply that using the noatime option does not produce any problems, in which case it seems preferable.

So would it be better to use noatime and avoid atime writes entirely, or to use relatime to avoid any software problems?