• Internet access restriction via GPO

    I need to restrict internet access in a particular department in my organsation and i need a way by i cld do that using Group Policy

    Wachen60 pointsBadges:
  • I’m getting several suspicious connection attempts. What should I do?

    I'm currently running Mac OS X and I currently have a system firewall and stealth mode enabled. When I opened up my system console, I discovered a ton of blocked connection attempts from different places that I'm not familiar with. I've actually checked the locations are some are located in China...

    ITKE346,360 pointsBadges:
  • Dead drop email strategy: Is it actually secure?

    I'm read in the news lately (online and print) that people are starting to conceal their email traffic. So instead of sending emails to a person's inbox, they're writing messages but leaving them in a draft folder or dropbox. Then the other person would log onto the same account and look at the...

    ITKE346,360 pointsBadges:
  • How secure is Identity-Based encryption?

    Over the past several years, I was always taught to never create my own crypto algorithm. But now I'm looking into Voltage SecureMail (which does use identity-based encryption) and I think I'm way over my head in trying to figure out the quality of the system.If you've used Voltage before, I'm...

    ITKE346,360 pointsBadges:
  • Configuration of NAC Appliances

    I will like someone to help me with configuration example of these three cisco devices in a university campus network; cisco NAC 3355 NAC Manager, Cisco NAC 3315 series NAC Server and Guess Server. We just bought the equipment and I was saddle with the responsibility to make it work for the...

    ralph12360 pointsBadges:
  • Why do websites force us to use passwords of a specific length?

    What is the reason that websites have very specific directives about the type of password and it's length that you can enter (8 characters with 2 being numbers, etc.). Are there technical reasons why its this way other than to stop stupid people from entering passwords that are easy to crack?

    ITKE346,360 pointsBadges:
  • Thoughts on a multiboot system with encryption and pre-boot authentication

    I'm running a system that runs Windows 7 and Windows XP, with Red Hat soon to be added. All this in conjunction with Grub 2 boot loader. How would I go about setting up a multiboot system with hard drive encryption and pre-boot authentication?I know TrueCrypt could be used to pre-boot...

    ITKE346,360 pointsBadges:
  • How do you insure that a file uploaded through web page is safe?

    How do you insure that a file uploaded through web page is safe? On our site, we plan to allow users to upload PDFs and TIFF images, but are worried that someone could purposely or by mistake upload a file virus. Are there any programs that can be used to scrub such files? I understand that it is...

    ITKE346,360 pointsBadges:
  • Email security: Zipped content

    One of my good friends, he's a developer and wanted me to ask this question on the forum. He currently sends a DLL or EXE file to one of his customers (who's a part of a big company). This is his process:Rename the executable file (module.dll -> module.d__)zip the file with password so that it...

    ITKE346,360 pointsBadges:
  • Are our powerline adapters secure?

    Our company is using 2 Zyxel PLA407 powerline adapters. We currently have one router downstairs that's connected to one adapter. The other is located upstairs (currently 30 feet away connected to a desktop). We've recently noticed that the speed is much faster when you just plugin, rather than...

    ITKE346,360 pointsBadges:
  • Cisco ASA Enable isakmp for certain ip address

    On a cisco ASA if you issue the follow command 'crypto isakmp enable outside' it allows for all external ip address to try to establish a vpn tunnel, is there a way to filter the request down to a certain ip address ? Example Only accept udp 500 reqest from 2.2.2.2 ?

    KWOLBERT5 pointsBadges:
  • Security: How does a crypter actually work?

    I'm studying to become a security expert and I've recently come across the idea of a "crypter". I'm talking about how these crypters encrypt files (such as viruses and keyloggers) so they can bypass antivirus detection. But I'm curious on how they actually work. Can someone help me with a brief...

    ITKE346,360 pointsBadges:
  • Why does encryption take longer than decryption?

    Why does it take longer for a system to process encryption than decryption? That seems to be the case from my experience using AES. I would think the act of decrypting files would take much longer.

    ITKE346,360 pointsBadges:
  • Firewall configuration Testing

    I need to do some tests of my firewall configuration. Specifically, I have to run a policy audit independent of any config management systems with an eye to inspecting Cisco PIX/ASA/FWSM and Juniper NetScreen/JunOS devices. Of secondary important (but they have to be done) are reviewing iptables...

    ITKE346,360 pointsBadges:
  • Web Application Firewall question?

    Could someone tell me what a Web Application Firewall is and how to tell if it is a good one? Also, is there a reason you would use one instead of an IPS?

    ITKE346,360 pointsBadges:
  • Sonicwall Zones and DHCP

    I have a network with a Windows Server acting as my DHCP server. I have a Sonicwall TZ215 with 3 zones. The first two are for intranet and internet connectivity, and are password protected. Zone 3 is meant to be used as a wireless router for internet only for our guests.I have other 'local'...

    Pesach5 pointsBadges:
  • How secure is Windows Defender?

    I'm looking to get Windows 8 specifically but I want to know how secure is its antivirus (Windows Defender)? Here are some of the questions I have: How much can I trust windows defender? Is it better than regular AVs like Kaspersky/AntiVirus? Any help you can give me would be much appreciated.

    ITKE346,360 pointsBadges:
  • Does a sysadmin know your password?

    I'm a software engineer at a small company. We've been having problems with our email hosting service. Not so much the company, but the service. While working through the issue with our sysdamin, he asked me for my password and I gave it to him without thinking. Later, it occurred to me that no one...

    ITKE346,360 pointsBadges:
  • Testing a EMV chip based card

    How is testing of a EMV chip card different than testing a magnetic striped card? What extra features need to be tested for an EMV chip card compared to a magnetic striped card?

    vadirajm5 pointsBadges:
  • Security: Sending a password / username over HTTPS

    Inside of my friend's website, when a user logs in, they send their username / password to him over HTTPS. Besides having a SSL, there isn't a special obfuscation of the password (it's living in memory in the browser).Is there anything else he should do to tighten security? Should he keep it...

    ITKE346,360 pointsBadges:

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