>>> Any tips or suggestions as to a way to limit/avoids telnet login   
   >>> attacks on BBBS?   
      
   >>> Lately I have been getting numerious telnet login attempts by   
   >>> IP's that reversely resolve to Asian countries. The same IP will   
   >>> try to login to all available nodes. No actual login is   
   >>> attempted. Each open node will sit open at the login name   
   >>> prompt.I have been adding up to 5 IP's at a time to the INET.BBB   
   >>> file. Which then blocks those IP's. But there are plenty of other   
   >>> IP's. :-)   
      
   >> Yeah, I think that this is a problem for every one of us that runs a   
   >> BBS.  It got to the poing where I have inbound telnet and binkp   
   >> connections running on only a certain group of nodes and web services   
   >> running on another group of nodes.   
      
      
   > I posted the above message shortly after I setup BBBS and noticed a rash   
   > of "root" and "sysop" login attempts. As well as DOS (Denial of Service)   
   > attempts by trying to login to all available nodes from the same IP. I   
   > quickly configured BBBS to reject logins using invvalid user info. As well   
   > as blocking DOS Ip's for a time. At one point I had some 5000 IP's that   
   > were being blocked. That type of activity has dimished considerably over   
   > the last year.   
      
      
   I took care of the problem with iptables.  It's late now, I'll post what I did   
   tomorrow.  It's easy, you'll see, and it works really well because you specify   
   the ports you want to 'protect'.   
      
   Take care,   
   Janis   
      
   --- BBBS/Li6 v4.10 Dada-2   
    * Origin: Prism bbs (1:261/38)