My online shop (Magento 1.7.0) sometimes goes without any doing of me in maintainance mode. It creates a file maintainance.flag in the system root.
What could be the reason and how can I prevent this from happening?
Perhaps it happens when you deploy updates from git. I've seen repositories where there's a maintenance.flag pushed.
Are you running your Cron? How frequently this is happening? Tell us more details.
Maintenance flag can also be created when you install a new extensions Or "somebody" installs a new extension -- because of latest wave of hacks, it's good idea to check out your user list. Perhaps you have uninvited guests.
Hi, try check your website on www.magereport.com.
There is a chance that your site has been compromised.