This has been happening for three times in two weeks so I decided to "down" the blog for a while until I found a definitive solution.
I'm really confused because I can't find the problem and also I can't find a way to diagnose where's the problem. I have changed all the passwords to access the server, only the owner of the file has access to write the file, I followed the steps from the codex, but without luck.
I use some plugins with the blog, but disabling them it's not an option because the make the site works.
I'm using the latest stable wordpress and my os is Arch Linux.
Basically... how can I diagnose where the problem is so I can treat it effectively? I'm really lost and I don't know where should I start looking so any help pointing that out would be greatly appreciated :).
* At least in my impression it's different from the issue that is caused with the pettazeta stuff.