>>>>>Do you log unsuccessful login attempts?
>>>>
>>>>There is a lot of logs. I do not know why everyone seems to target the server infrastructure. A failure to reach a server is something that happens from time to time on the Internet. I face that on a daily basis actually with the tons of servers I am accessing. There are tons of reasons why a connection cannot be reached. As of this morning, I just have no idea what was the factor but it was out of my network.
>>>
>>>Yes, I understand that. I am just curious if you will be able to somehow detect that situation (not necessary address).
>>
>>If your server isn't being reached then it can't log anything :-}
>
>Well, with logs the *absence* of entries is itself information. If on a regular Monday morning the server sees X hits/hour, but today saw only 0.25X that can be useful information. I imagine that a lot of web sites that depend on traffic would flag something like that in their high-level dashboard monitoring systems.

True - absence of expected traffic is obviously an indicator that something is wrong. I guess my point was that there will be no indication as to what the actual problem was.....