Block unwanted visitors using their IP address on your Joomla site?
Sometimes you need to block a certain IP address, a group of addresses or certain hosts from accessing your Joomla website. Reasons may include:
- It's a hacking attempt coming from that IP
- Someone is scraping content from your website
- A brute-force attack (in most cases a DoS - Denial of Service - attack is originated from that IP (there are too many requests coming from a particular IP
- Someone continuously spamming your website
- Some content from your site (images, media files) are hotlinked from your website.
The solution is simple, but is advised to apply first other tools to stop these bad guys - overuse of this tip can slow down your site considerably, use it ony if you don't have anything else - or you are in hurry to stop an ongoing attack.
Denial of Service Attacks (DOS, DDOS)
A denial of service attack takes place when a hacker overloads a system with large or repeated requests for a service.
Locate modified files
If files have been modified on your server, or files have been uploaded for instance, you can check the timestamps on those files to find out when the attacker was on your site. This is typical in the case of sites being defaced or malicious code being injected somewhere. Most of the time, the attacker will have gained access to your site shortly before modifying or uploading files to it.
Patching Joomla 1.0.x to support AOL users
Did you received complaints from your AOL users that they have problems using your Joomla powered site? Did you read in Joomla forums that other users and administrators have the same problem, namely that the last few 1.0.x releases of Joomla do not properly support AOL users?
I did, and searched the web for some solution. This way I had came across the Eric's blog, where I found the following hack, which worked for me.
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?