One popular and potentially devastating method of attack against Joomla powered sites is SQL injection. Any web application that makes use of a database usually communicates with the database for necessary functions using a special language known as 'Structured Query Language', or SQL. Joomla, by the way, uses an open source implementation of this language, MySQL.
This Site Is Temporarly Unavailable
You may already seen this annoying message instead of your Joomla site:
This site is temporarily unavailable.
Please notify the System Administrator.
And you are virtually clueless what to do about, and even the smallest bit of info on what happened can be a lifesaver.
Why my Joomla site is this slow?
Joomla generally is running at an acceptable speed - users aren't seeing differences between an average Joomla site and another CMS'es. But what if they do? What can cause the (sometime unbearable) slowness of some Joomla sites?
You Do Not Have Access to the Administrator Section of This Site
It's annoying... your own Joomla site don't let you log in in the backend, and you see the above error message... What's happened?
Humm, there are couple of things you can do. Contrary of the lots of "smart" blog entries on the subject out there (last search revealed about 2 million hits) in most of the cases, regardless to Joomla version the cause is simple:
You Do Not Have Access to the Administrator Section of This Site - Reloaded
After year of using myself the tip You Do Not Have Access to the Administrator Section of This Site successfully today I hit the wall.
I did one more stunt as the ones described above - but didn't helped.
But let's see first the failed hack - because that\s interesting too:
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