Home ›

Demons Seeking Dæmons—A Practical Approach to Hardening Your OpenSSH Configuration

Issue 143

From Issue #143
March 2006

Jan 26, 2006  By Phil Moses
 in
A few simple configuration tweaks could save you sleepless nights over whether or not someone might crack your SSH server.
______________________

Comments

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.

ssh work

Steve Jim1's picture
Submitted by Steve Jim1 (not verified) on Sun, 08/17/2008 - 09:33.

The new work about ssh server is to be access very carefully to get fixed.

ssh -p <alternate port>

Keith Daniels's picture
Submitted by Keith Daniels on Mon, 11/20/2006 - 01:48.
Doing ssh -p will allow a second dæmon to run and provide you with a secondary secure connection Shouldn't that be: sshd -p ?

"I have always wished that my computer would be as easy to use as my telephone.
My wish has come true. I no longer know how to use my telephone."
-- Bjarne Stroustrup

Denyhosts

Anonymous's picture
Submitted by Anonymous (not verified) on Tue, 05/30/2006 - 05:21.

"DenyHosts is a python program that automatically blocks ssh attacks by adding entries to /etc/hosts.deny. DenyHosts will also inform Linux administrators about offending hosts, attacked users and suspicious logins." Very nifty when your machine is getting hammered with brute force attacks. You can find it here.

Webcast
More Resources
How to Build an Optimal Hadoop Cluster to Store and Maintain Unlimited Amounts of Data Using Microservers

Realizing the promise of Apache® Hadoop® requires the effective deployment of compute, memory, storage and networking to achieve optimal results. With its flexibility and multitude of options, it is easy to over or under provision the server infrastructure, resulting in poor performance and high TCO. Join us for an in depth, technical discussion with industry experts from leading Hadoop and server companies who will provide insights into the key considerations for designing and deploying an optimal Hadoop cluster.

Learn More

Sponsored by AMD

White Paper
More Resources
Red Hat White Paper: Using an Open Source Framework to Catch the Bad Guy

Built-in forensics, incident response, and security with Red Hat Enterprise Linux 6

Every security policy provides guidance and requirements for ensuring adequate protection of information and data, as well as high-level technical and administrative security requirements for a system in a given environment. Traditionally, providing security for a system focuses on the confidentiality of the information on it. However, protecting the data integrity and system and data availability is just as important. For example, when processing United States intelligence information, there are three attributes that require protection: confidentiality, integrity, and availability.

Learn more about catching the bad guy in this free white paper.

Learn More

Sponsored by DLT Solutions