Julio Guerra's questions

I am limiting the number of SSH connections using iptables but in case of, for example, a broken pipe (computer goes sleep mode, network problem, etc.) I am no longer able to reconnect.

The rule I use to limit the number of connections is the following:

-A INPUT -p tcp -m tcp --dport 22 --tcp-flags FIN,SYN,RST,ACK SYN -m connlimit --connlimit-above 1 --connlimit-mask 32 --connlimit-saddr -j DROP

Any idea of what's missing so that if the active SSH connection unexpectedly drops, the connection number is correctly decreased? Note that it works correctly when the SSH session is properly closed (i.e. I can reconnect, the counter goes back to 0).

I have two folders synchronised with robocopy (src and mirror) and I try to not removing files in the mirror before 30 days. I tried with /MINAGE option to say "consider every files older than 30 days" so that it only deletes 30-day old files in the mirror but it seems that it is only acting on available files (not deleted).

robocopy /MIR /MINAGE:30 /SD:src /DD:mirror

So basically, if I create a new file, it will be correctly synced in the mirror (by another robocopy task that doesn't delete files at all); and if the day after I delete it, the file will be deleted in the mirror too when running the previous command. To summarize, I want to delete files deleted in the src folder and older than 30 days in the mirror.

Am I missing something ?

Thank you.

Is it possible to start a script every time a folder tree is modified.

E.g.:

root
  dir1
    file1
  dir2
    file1
    file2

root would be listened and if, for example, file2 is modified or a new file is added wherever in the directory tree, a script is started.

A subquestion would be : are scheduled tasks triggered by events queued ?

Thanks for your help!

I am looking for a solution to mirror a folder at every change by synchronizing it with another local folder (let's say C:\Data and C:\Mirror) : synchronize new files and modifications but do not synchronize suppressions.

I know this is possible with rsync (synchronize everything but suppressions), but I firstly would like to know if there is any built-in feature for that ?

Secondly, I saw it is possible to trigger tasks on events in the task scheduler, so is it possible to trigger this synchronization task when any change happens in the folder ?

The built-in versioning tool is not enough accurate (it only makes saves at 7:00 and 12:00).

The goal is to be able to avoid files suppressions mistakes on the server. If someone deletes a folder, he is able to recover it from the read-only folder where suppressions are not synchronized.

Thank you very much for you help!