>>>>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.