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Which program can I use for blocking unauthorized access via/ssh/ftp

 
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Top Forums UNIX for Dummies Questions & Answers Which program can I use for blocking unauthorized access via/ssh/ftp
# 1  
Old 06-17-2010
Which program can I use for blocking unauthorized access via/ssh/ftp
Hi,

I need to install a program on my Centos 5.3 server that will block unauthorized ssh/ftp access attempts. The two features I require is that I should be able to configure the program to block the IP of the intruder after a a certain amount of access attempts and that it should display a warning message to the user.
# 2  
Old 06-18-2010
Fail2Ban?
# 3  
Old 06-18-2010
Quote:
Originally Posted by pludi
I just did some research into fail2ban and it does not seem to have th eoptioj to display a warning message.

Any idea how I can hack it to do so?
I do know some programming
# 4  
Old 06-19-2010
Don't think that that can be done, as fail2ban can only read the log files and act upon them, it never interferes with a connection directly. For FTP, you could try having it set the message/issue file automatically, but that would apply to all connections. I don't think it's possible for SSH, as there isn't any text sent to the client until it is authenticated.
 
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