Nathaniel Hall wrote:
I see attempts about every other day. Because of this, I send e-mails to ISPs about every other day. After the third offense from within the same range, I block all access to our servers from that range, unless the ISP attempts to correct the problem.
I also keep track of all attempts so that I can reference it later in case of a break in.
Nathaniel Hall, GSEC Intrusion Detection and Firewall Technician Ozarks Technical Community College -- Office of Computer Networking
halln@xxxxxxx
417-447-7535
Gerry Doris wrote:
On Tue, 2004-12-07 at 15:24, Michael Yep wrote:
Hello
In my LogWatch report I get many login attacks, many from the same IP address.
sshd: Authentication Failures: root (218.232.109.187): 59 Time(s) adm (218.232.109.187): 2 Time(s) apache (218.232.109.187): 1 Time(s) nobody (218.232.109.187): 1 Time(s) operator (218.232.109.187): 1 Time(s) Invalid Users: Unknown Account: 43 Time(s)
I have permitRootLogin set to NO, and I use strong passwords, but can I just add these IP addresses to hosts.deny?
and if so how would I set that up
Michael Yep
Development / Technical Operations
RemoteLink, Inc.
I had so many problems with the 218.0.0.0/24 domain that I totally blocked the entire domain. I believe this domain is in Korea.
Hey guys,
I'm new to this security issues on Linux, but I find this thread interesting. Could some of you please point me to some docs where I can learn more (especially about these utilities and how to use them)?
Thanks,
--
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*Gustavo Seabra* <http://www.ksu.edu/chem/personnel/faculty/grad/jvo/ortiz/people_seabra.html> - Graduate Student
E-Mail: seabra@xxxxxxx <mailto:seabra@xxxxxxx>
Phone: (785) 532-6072 Chemistry Department <http://www.ksu.edu/chem/>
Kansas State University <http://www.ksu.edu>
Manhattan, KS 66506-3701
