Defense is the use of security countermeasures to protect the integrity of the information assets in an IT system and/or infrastructure.

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904 views

Hadoop security, isolation, and hardening

This is a multiple part question, which all really come back to the main question: How best to protect data in a Hadoop (wikipedia) cluster. (Current version, vanilla main-branch distro - ...
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5answers
3k views

Is the US military secret network SIPRNet physically or cryptographicaly separated/secured?

I've read the Wikipedia articles on SIPRNet and NIPRNet (which are pretty light on details) and they are supposed to be considered separate. At the network level, are they technologically ...
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3answers
2k views

Privilege Escalation Ubuntu

I am trying to learn how an attacker can escalate privileges in Ubuntu 10.04. I have heard that this can be done but no one has ever said how to do it. The best defense is knowing how it is done and ...
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1answer
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Guidance for implementors of HTTPS-only sites (Server side)

The recent trend in HTTPS attacks is to attack the HTTP protocol. What should I do to increase my site's security if the only protocol I want is HTTPS? Some easy to implement ideas are Implement ...
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15answers
3k views

Why do law-abiding citizens need strong security?

The layman's counter-argument I run in to for any complaint about inadequate security seems to always take the form: You don't need security if you aren't doing something illegal. This kind of ...
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8answers
1k views

Randomizing MAC addresses on bootup

Since it is possible to set custom MAC addresses, wouldn't it make sense to have a new one as often as possible/convenient (i.e. on bootup)? It would seem that is useful to both attacker and victim ...
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vote
5answers
290 views

Is there something similar to DNSBL's for protecting against forceful browsing?

I want to protect a couple of Apache webservers against forceful browsing. Lately there have been multiple scans querying for non-existent applications on them like phpMyAdmin, notably known for their ...
21
votes
3answers
2k views

NoScript: How to determine which sites/scripts to whitelist?

NoScript is a great plug-in, both for security and for ad blocking. However, I've found it's not always easy to figure out what scripts need to be permitted on certain pages, to be able to use the ...
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2answers
3k views

Recommend Keylogger for Ubuntu?

I purchased a new laptop recently, and I'm working on hardening it. Specifically, I'm interested in increasing my chances of recovering the machine in the event that it's ever stolen. The system ...
7
votes
4answers
464 views

What kind of IT security applications do you guys run on your laptop/desktop?

I know a lot of people run different security applications on their laptops/desktops. I use Little Snitch on my Macbook Pro. I like to know where my applications are sending data and where I am ...
5
votes
1answer
700 views

Linux wireless hacking book

I am looking for recommendations on a good wireless hacking book. I would like something more focused towards the defensive, but a healthy knowledge of both would be great. I would also need it to go ...
15
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4answers
4k views

Options when defending against SSLstrip?

I'm wondering, does anyone have any suggestions to defend against SSLstrip particularly?