HI all,

I have noticed lately that a lot of bots are trying to access my server I run he usuall services on it i.e ftp,http,ssh,mail... I had found a good script named rubyrobot but develped problems while installing ruby so am currently looking for another app to use, am currently looking at: snort,DenyHosts,OSSEC HIDS,fail2ban.

Does anyone know which of the above is better or even another better app that i can use, any replies will be greatly appreciated.Thanks in advance

Have a look in the sticky thread at the top of the Security forum. unSpawn has pulled together a lot of links to useful tools and advice.
I'm going to take a little bit of issue with your question. Security isn't about a single application that you install. It is a process you set up so that (hopefully ) nothing will happen, but if something does happen, you know it happened, you know what happened and you have the information you need to fix the problem. It's also about keeping current with both your OS and your application patches. No one program does it all.

thanks hangdog42 i will go and take a look at it,I just felt fed up like you said i have built my system with security in mind making sure access from the internet is at minimal and to only certain users without dictionary passwords. But sometimes i pull out the log and i have nearly 30k attempts in a day and i just want a quick fix.
Well nothing comes easy i suppose i will go to the security section and see what help i can get. Thanks again from one tired admin.