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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: 73,277
    01-11-2010 Go to last post
  1. [Project] AntiBootkit

    Hi all, I've written a small script to check if Master Boot Record (MBR) has been modified and I want share it with you. A BootKit is a rootkit...

    Started by tmp777, 09-12-2014
    • Replies: 0
    • Views: 621
    09-12-2014 Go to last post
  2. How to protect system from cloning?

    Hello there, I would like to protect a Linux system from cloning, I don't mind if the cloned hard drive works in the same computer, but I need to...

    Started by floatinteger, 09-07-2014
    • Replies: 1
    • Views: 919
    09-07-2014 Go to last post
  3. Leave your cell phone at home when you protest

    EFF article that should interest some.....

    Started by docbop, 08-28-2014
    • Replies: 3
    • Views: 1,321
    08-29-2014 Go to last post
  4. Webserver infected with spamscript

    Hi! I have a webserver with numerous websites. There is one specific site that runs Joomla 2.5 that keeps getting infected with various...

    Started by PatricF, 07-28-2014
    • Replies: 2
    • Views: 6,419
    07-28-2014 Go to last post
  5. Windows Vault in linux

    Hi All, I have an application that uses the windows vault to store some passwords. As I understand these passwords are encrypted using the user's...

    Started by zivgabel, 07-27-2014
    • Replies: 3
    • Views: 837
    07-27-2014 Go to last post
  6. Air gapped computer proxying

    I purchased a replacement laptop, a Toshiba Portege R205. I air gapped it by removing the wifi, bluetooth, dial up modem, piezo electric two way...

    Started by BadBIOSVictim, 07-07-2014
    5 Pages
    1 2 3 ... 5
    • Replies: 43
    • Views: 4,713
    07-26-2014 Go to last post
  7. Password Tools Powned

    So still the best tool is you brain. Take the time to come up with a handful of good passwords and take the time to memorize them. Popular...

    Started by docbop, 07-14-2014
    • Replies: 8
    • Views: 1,076
    07-20-2014 Go to last post
  8. How to safely copy files to replacement computer?

    In November 2011, my linux boxes were infected with BadBIOS. I purchased over a dozen replacement computers and returned, sold or discarded almost...

    Started by BadBIOSVictim, 06-26-2014
    2 Pages
    1 2
    • Replies: 10
    • Views: 1,699
    07-07-2014 Go to last post
  9. security for online services

    hi I have a general question. I have received a few mixed answers already so I was hoping some of you guys could help me. I'm using an online...

    Started by zanoos800, 06-30-2014
    • Replies: 3
    • Views: 766
    07-05-2014 Go to last post
  10. Should I use Golden Frog or Tails Linux for public wifi?

    I don't plan on entering any credit card info or things like that, but I'd like to log into sites instead of just web searching. Would using Tails...

    Started by Sharpghost6, 06-13-2014
    • Replies: 1
    • Views: 1,785
    06-13-2014 Go to last post
  11. BadBIOS infected German Tor DVD has preseeds. Root pwned.

    This thread is part three: preseeds and file permissions. The first two parts are: 'Fake browser plugins in live linux DVDs' in Security section and...

    Started by BadBIOSVictim, 05-18-2014
    2 Pages
    1 2
    • Replies: 17
    • Views: 4,127
    06-08-2014 Go to last post
  12. BadBIOS infected PCLinuxOS has Kismet streaming wav audio

    Last week, I posted in security section that PCLinuxOS FullMonty 2013.04, purchased from, has fake browser plugins. Yesterday, I...

    Started by BadBIOSVictim, 05-21-2014
    2 Pages
    1 2
    • Replies: 11
    • Views: 6,362
    06-06-2014 Go to last post
  13. OpenSSL security advisory issued June 5th, 2014

    Here's the announcement. The short version is that you should upgrade the openssl package on...

    Started by cnamejj, 06-06-2014
    • Replies: 1
    • Views: 894
    06-06-2014 Go to last post
  14. BadBIOS infected linux distros have multiple squashfs, busybox initrd

    A half a year ago, bartsimpson posted a thread warning PartedMagic in Ultimate Boot CD (UBCD) was tampered. linuxforums moved the thread to...

    Started by BadBIOSVictim, 05-18-2014
    • Replies: 3
    • Views: 3,346
    06-06-2014 Go to last post
  15. How to read "Firewall: *TCP_IN Blocked*" message?

    Hello, FTP users are getting blocked false by firewall (config server firewall), i need to learn what firewall rule triggering this block, so from...

    Started by postcd, 05-26-2014
    • Replies: 1
    • Views: 2,647
    05-27-2014 Go to last post
  16. vnc server connection refused and port appears closed

    I installed vncserver on my redhat, i installed same setup as i used on my last server where it worked. But now after start vncserver and trying...

    Started by postcd, 05-24-2014
    • Replies: 3
    • Views: 2,199
    05-25-2014 Go to last post
  17. Browser Hijack. Is there a way to block a domain?

    On hover, in Google Chrome, I am often redirected to other sites that display the attached screenshot telilng me to update my linux drivers. This is...

    Started by shyflower, 05-17-2014
    2 Pages
    1 2
    • Replies: 15
    • Views: 2,307
    05-22-2014 Go to last post
  18. How to be immune to basic UDP/any port attack flood?

    Hello, on server i have config server firewall and iptables. I would like server to be safe from basic UDP flood and any port attack flood....

    Started by postcd, 05-14-2014
    • Replies: 2
    • Views: 1,168
    05-22-2014 Go to last post
  19. How to allow only RELATED,ESTABLISHED TCP/UDP connections

    Hello, i got advice to Only allow RELATED,ESTABLISHED TCP/UDP connections for other ports such as 53 (DNS). so i want to ask what command i...

    Started by postcd, 05-15-2014
    • Replies: 4
    • Views: 1,352
    05-22-2014 Go to last post
  20. Fake browser plugins in live linux DVDs

    Firefox in PCLinuxOSFullMonty 2013.04 DVD, purchased from last year, has 12 plugins. Eleven of the plugins are fake. They are not in list...

    Started by BadBIOSVictim, 05-16-2014
    2 Pages
    1 2
    • Replies: 10
    • Views: 1,942
    05-20-2014 Go to last post

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