This one came up as a result of the DoS attack last week when a site I administer was hit repeatedly for page downloads at the rate of 2 or 3 a second for a couple of hours. The same …
Monthly Archives: March 2012
Preventing Site Cloning and DoS with Fail2Ban
Posted by admin
on March 25, 2012
Comments Off on Preventing Site Cloning and DoS with Fail2Ban
DoS on Amazon EC2 instances running WordPress
Posted by admin
on March 18, 2012
No comments
I was got out of bed with an emergency call from a client at the weekend because his blog was down. This is the one that is getting a lot of traffic, but CPU was spiking up to 100% quite …
Fail2Ban behind an Amazon Load Balancer
Posted by admin
on March 13, 2012
3 comments
When using F2B on servers that sit behind Amazon ELBs (and probably load balancers of other types), the client IP in the error log is usually that of the load balancer. Banning the load balancer from access is probably not …
Adding a new MySQL slave on EC2
Posted by admin
on March 8, 2012
No comments
There are a few posts around for doing this easily, but this has just worked nicely for me. This was done between two instances on Amazon EC2 cloud. On the existing slave (in mysql) SLAVE STOP; SLAVE SHOW STATUS\G; # …
Turn PHP Xdebug profiling on and off by BASH script
Posted by admin
on March 3, 2012
No comments
It was bugging me (debugging me?) that Xdebug profiling dragged my development server down so much. So here’s a simple script to place in /usr/local/bin to turn it off and on more easily. Remember to chmod +x it first. This …
Recent Comments