I had the same problem, it was a DOS attack. First, you need to check
if you are a victim of this attack in the access log file, then set up
fail2ban to prevent further attacks :
I wrote a detailed solution about this issue here
I had the same problem, it was a DOS attack. First, you need to check
if you are a victim of this attack in the access log file, then set up
fail2ban to prevent further attacks :
I wrote a detailed solution about this issue here