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Forum: Security

Post here for help with Linux security issues: antivirus, firewalls, encryption, vulnerabilities, etc

  1. Sticky Thread Sticky: A short guide to Linux security

    Here at we are often asked about the potential threat of a virus or malware attack. This short guide is designed to answer some of...

    Started by fingal, 02-25-2006
    • Replies: 1
    • Views: 71,544
    01-11-2010 Go to last post
  1. My linux is a website zombie

    Hi, My Fedora core 6 install is a web zombie, it visit random sites attempting to access user accounts, post on forums etc. I am not able to find...

    Started by ae7272, 10-30-2007
    • Replies: 3
    • Views: 1,187
    11-03-2007 Go to last post
  2. Unhappy Chroot ssh login problem

    Hello everyone, im having troubles installing a ssh chrooted envioroment; at first look everything works fine, doing a "chroot /chroot/ /bin/sh" i...

    Started by billy_boy, 10-31-2007
    • Replies: 1
    • Views: 2,749
    11-01-2007 Go to last post
  3. Is there a way to protect the bootloader from outside software?

    Every now and then while I am on-line my computer will start clicking and I know that software is being downloaded into my bootloader. I have to get...

    Started by cousinlucky, 10-30-2007
    • Replies: 1
    • Views: 708
    10-31-2007 Go to last post
  4. DDOS protection

    Hello, Im new here, great forum! I was just wondering what software you guys use to secure your machines from (D)Dos attacks? I use : tcpdump...

    Started by SXR, 09-27-2007
    • Replies: 7
    • Views: 17,109
    10-30-2007 Go to last post
  5. Squid Problems

    I tryed to send this to the Squid Mailing list but I wasnt able to.. I was subscribed and stuff but it still just didnt work. Anywho thats the...

    Started by RobinVossen, 10-30-2007
    • Replies: 0
    • Views: 2,572
    10-30-2007 Go to last post
  6. Demonstrating MAC using SELinux, Metasploit and DVL

    I would like to demonstrate how mandatory access control(implemented using SELinux) can be used to avoid most of the attacks.I have metasploit...

    Started by nengo, 10-29-2007
    • Replies: 1
    • Views: 2,776
    10-29-2007 Go to last post
  7. vpn vs https

    Hi, I had a question as to when do we go for vpn and when do we go for https. Both of them provide authentication and encrypted data transfer. So...

    Started by, 10-25-2007
    • Replies: 1
    • Views: 3,422
    10-26-2007 Go to last post
  8. Openssl and L2TP

    I would like to use my netscreen 5xt to act as an L2TP server using the windows L2TP client. I am very new to PKI cert based VPN so I dont know much...

    Started by texanmutt, 10-24-2007
    • Replies: 0
    • Views: 1,882
    10-24-2007 Go to last post
  9. Disable Security in Debian/Ubuntu

    Hi, I am teaching a class on Computer Security and am hoping to disable all the default security settings that come standard on Debian. Basically,...

    Started by skm376, 10-19-2007
    • Replies: 0
    • Views: 2,418
    10-19-2007 Go to last post
  10. Danger of NOT updating the Kernel?

    Hello, at the moment I run kernel in FC6. And well I did add the truecrypt module. What is the Danger of NOT updating the kernel?...

    Started by RobinVossen, 10-16-2007
    • Replies: 3
    • Views: 1,074
    10-19-2007 Go to last post
  11. issue with SSH Server

    Hi, wonder if anyone might be able to help me here. I'm new to SSH. I have just installed SSH server on one of our machines. The machine is...

    Started by associates, 10-17-2007
    • Replies: 0
    • Views: 867
    10-17-2007 Go to last post
  12. Squid proxy hardening.

    I have some questions about squid security. Firstly, my acl list is posted in the attachment. There is a line. acl manager proto cache_object ...

    Started by Felarin, 10-13-2007
    • Replies: 1
    • Views: 3,487
    10-14-2007 Go to last post
  13. Can we limit login failures from an IP address

    I searched but couldn't find anything like this. We get regular "dictionary attacks" on our ssh ports. People or programs trying various...

    Started by areeda, 10-04-2006
    2 Pages
    1 2
    • Replies: 11
    • Views: 9,799
    10-10-2007 Go to last post
  14. SELinux implementation with virtual machines

    I am working with SELinux for my final year project.My objective is to show how to prevent zero day exploits with SELinux.I am planning to use...

    Started by nengo, 10-08-2007
    • Replies: 1
    • Views: 1,011
    10-08-2007 Go to last post
  15. Tunnel VNC over SSH

    Hey, I have been working on this for quite some while.. Googled, tryed examples. But for some reason i just dont get it. I need to connect with a...

    Started by RobinVossen, 10-04-2007
    • Replies: 8
    • Views: 18,988
    10-06-2007 Go to last post
  16. Transparent Router/Firewall help needed!

    Hi, i am currently trying to make a router firewall that will be transparent and redirect all dns requests to opendns. I have decided to use a...

    Started by sdolin, 09-29-2007
    • Replies: 1
    • Views: 3,195
    10-06-2007 Go to last post
  17. chroot gdm

    Hello all I have been looking for quite a while now about chrooting info. I found out (almost) how to chroot a shell. But now I need to chroot the...

    Started by RobinVossen, 10-01-2007
    • Replies: 2
    • Views: 3,034
    10-05-2007 Go to last post
  18. Is this safe?

    I have been working on a Project for Quite a while now. And well I need to know for sure that this is safe.. So well I want your Opinion on this. ...

    Started by RobinVossen, 10-02-2007
    2 Pages
    1 2
    • Replies: 10
    • Views: 1,539
    10-05-2007 Go to last post
  19. Shadow File

    In what encryption way is the Password saved in the shadow file? Since well, I have 3 users with same password. And the Hash is Diffrent every 3...

    Started by RobinVossen, 10-03-2007
    • Replies: 2
    • Views: 2,547
    10-03-2007 Go to last post
  20. SELinux

    I have just decided to learn SELinux and to demonstrate how to use it for my final year project. My main problem comes in the implementation...

    Started by nengo, 09-30-2007
    • Replies: 2
    • Views: 924
    10-02-2007 Go to last post

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