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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: 72,060
    01-11-2010 Go to last post
  1. 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: 1,028
    07-20-2014 Go to last post
  2. 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: 1,567
    07-07-2014 Go to last post
  3. 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: 731
    07-05-2014 Go to last post
  4. 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: 1,713
    06-13-2014 Go to last post
  5. 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: 3,767
    06-08-2014 Go to last post
  6. 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: 6,082
    06-06-2014 Go to last post
  7. 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: 837
    06-06-2014 Go to last post
  8. 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: 3,205
    06-06-2014 Go to last post
  9. 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: 2,234
    05-27-2014 Go to last post
  10. 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: 1,908
    05-25-2014 Go to last post
  11. 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: 1,803
    05-22-2014 Go to last post
  12. 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: 1,122
    05-22-2014 Go to last post
  13. 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: 1,266
    05-22-2014 Go to last post
  14. 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: 1,755
    05-20-2014 Go to last post
  15. New RFC to try and protect our privacy in the future.

    Started by docbop, 05-14-2014
    • Replies: 1
    • Views: 472
    05-14-2014 Go to last post
  16. HDD SMART value: Seek_Time_Performance - how to read?

    Hello, my HDD has this value when i do: smartctl -a /dev/sda I just want to ask how should i read this data, if my value is alarming or...

    Started by postcd, 04-28-2014
    • Replies: 3
    • Views: 1,412
    05-09-2014 Go to last post
  17. How long does it take RSA key generate? What my key then?

    Hello, i tried to generate key using linux command "gpg --gen-key". And it prompted my details about key, and after confirmed password, it started...

    Started by postcd, 05-04-2014
    • Replies: 5
    • Views: 1,291
    05-08-2014 Go to last post
  18. Modifying tar.gz / tar file to prevent extraction?

    Hello, im making backups of sensitive data to my VPS, i cant trust owner of the VPS node fully. So i got an idea on which i need Your comments. ...

    Started by postcd, 05-04-2014
    • Replies: 4
    • Views: 799
    05-07-2014 Go to last post
  19. Cloudflare malicious connections to my server?

    Hello, i thought cloudflare is used to serve content of webpage, but my website receiving connections like: As you can see these are quite...

    Started by postcd, 04-30-2014
    • Replies: 2
    • Views: 1,007
    05-03-2014 Go to last post
  20. Question Encrypted /root, /home, and swap mount at boot but not data LV shared?

    The following is how I have encrypted the /root, /home, and swap partitions on a disk already containing Windows 8.1 and only require a single...

    Started by dusf, 04-25-2014
    • Replies: 3
    • Views: 1,449
    04-27-2014 Go to last post

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