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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: 52,364
    01-11-2010 Go to last post
  1. Exclamation Unauthorised root logins?

    Hi, I am experiencing a strange behavior on one of my servers. The server is running CentOS 5.5 (Final) and Parallels Plesk Panel 9.5.4. I am the...

    Started by clinton4, 03-11-2014
    • Replies: 7
    • Views: 586
    03-23-2014 Go to last post
  2. Cleaning Malware from website

    Malware can be tough to find and eradicate especially in time restraints of a production environment. So here's some steps to try. ...

    Started by docbop, 03-06-2014
    • Replies: 1
    • Views: 409
    03-16-2014 Go to last post
  3. Question Logging on to linux using self-signed certificate

    Hello, I have no idea if this is possible, or if this is just a neat idea, but is there any way to log on to a linux system using a self-signed...

    Started by nathanEll, 03-05-2014
    • Replies: 2
    • Views: 443
    03-05-2014 Go to last post
  4. Help with log? Possible malware or windows-user's paranoia:

    So...about four weeks ago, I had one crazy day where my Windows 8.1 install started redirecting my searches, then disabled the Defender and firewall...

    Started by zenx1, 02-19-2014
    • Replies: 6
    • Views: 511
    02-20-2014 Go to last post
  5. Shorewall 2 internet lines

    Can someone help me pelase with configuration of shorewall. I have now two internet lines internet line 1 EM1 which is default and internet line 2...

    Started by Blisk, 02-15-2014
    • Replies: 0
    • Views: 293
    02-15-2014 Go to last post
  6. DDoS and brute force attack

    How to protect DDoS and brute force attack. I want to secure my server and block attacker.

    Started by romanepo, 01-29-2014
    • Replies: 4
    • Views: 717
    01-29-2014 Go to last post
  7. Thumbs down Virtualization Techniques for Security

    Dear pals, I am doing my masters in Computer Engg . I have no idea regarding the "What are the Virtualization Techniques for Security" regarding...

    Started by admod, 01-21-2014
    • Replies: 3
    • Views: 557
    01-23-2014 Go to last post
  8. Block unwanted domain from accessing server

    Hello, how i should block unwanted domain from accessing my server. For example my domain is it is linked to my server and domain is...

    Started by Eimantas, 01-21-2014
    • Replies: 4
    • Views: 404
    01-21-2014 Go to last post
  9. Zeus botnet CP found

    Hello, i found an Zeus botnet control panel PHP script on an account under my reseller hosting. I found there are a bots in its database and...

    Started by postcd, 01-20-2014
    • Replies: 1
    • Views: 481
    01-20-2014 Go to last post
  10. Lightbulb Any way i can make linux only run signed code ?

    how can i make Linux (any distro) run only signed code ? it does not have to be signed by the author ,it can be signed by me. can we do that ? is...

    Started by jeorge_kabbi, 01-20-2014
    • Replies: 2
    • Views: 324
    01-20-2014 Go to last post
  11. What are HARDWARE firewalls for?

    I've talked to people who install "boxes" which do this. What do they have that iptables does not? Thanks.

    Started by resetreset, 01-13-2014
    • Replies: 5
    • Views: 440
    01-20-2014 Go to last post
  12. How to encrypt / password protect big linux file?

    Hello, i have around 20 backup files tar.gz with sensitive data. The sizes of these files are from around 200MB to around 20GB I want to secure...

    Started by postcd, 01-09-2014
    • Replies: 4
    • Views: 585
    01-17-2014 Go to last post
  13. Desktop assigned bad IP address through Devil Linux firewall

    Hello all, I'm trying to convert an old Pentium III I had lying around into a firewall and decided to use Devil Linux. I have a dual port adapter...

    Started by koan6, 12-28-2013
    • Replies: 1
    • Views: 613
    12-28-2013 Go to last post
  14. tracking pseudo-tty-less SSH sessions in Linux?

    In my continuing journey of learning more about linux security, I was delving deeper into disabling pseudo-tty allocation in ssh. Though a very...

    Started by SDSL, 12-23-2013
    • Replies: 5
    • Views: 795
    12-27-2013 Go to last post
  15. Unhappy Randomization Even Prior to 2.6.18

    Greetings, I'm doing a presentation for school on attacks against address space layout randomization. I plan on demonstrating either a...

    Started by StupidFlanders, 04-26-2013
    • Replies: 1
    • Views: 436
    12-25-2013 Go to last post
  16. /etc/hosts.deny missing ":" separator

    Hello, my Logwatch returns this: I read on the internet that there could be some nonprinting character and that command "cp /dev/null...

    Started by postcd, 12-21-2013
    • Replies: 1
    • Views: 487
    12-22-2013 Go to last post
  17. Anyone using "John the ripper"? Have a RAR file that has no known pass

    Hello... Found a couple of reference to "John the Ripper", and was wondering if anyone can help me with my problem. The docs state that a version...

    Started by jkwilborn, 12-16-2013
    • Replies: 2
    • Views: 1,119
    12-17-2013 Go to last post
  18. Other acl manipulation executables than getfacl/setfacl?

    I am familiar with setfacl/getfacl. However, I am wondering if there are any other executables/packages that maintain similar functionality with...

    Started by imagenesis, 12-05-2013
    • Replies: 0
    • Views: 546
    12-05-2013 Go to last post
  19. [SOLVED] installing Bastille on Debian

    How can I use the GUI to install Bastille on my debian system? Actually quite lost. Any sugesstions. Thank You

    Started by gregjunior, 11-20-2013
    • Replies: 4
    • Views: 1,083
    11-30-2013 Go to last post
  20. Monitoring of root logins / last log?

    Is it wise to monitor "last" log and get notiffied by email when an IP other then one i set appears? Or something similar?

    Started by postcd, 11-20-2013
    • Replies: 1
    • Views: 532
    11-22-2013 Go to last post

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