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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: 69,646
    01-11-2010 Go to last post
  1. Executables, add-ons, extensions. Who to trust? How to test.

    If you have answers, links, or search-phrases applying to any of these questions; please join-in. This is not an emergency; I am reading and...

    Started by leaf_also, 06-02-2013
    • Replies: 3
    • Views: 1,103
    06-03-2013 Go to last post
  2. suid and symlinks

    I installed Google Chrome a few days ago using Google's own DEB package. It installs under /opt, which on my system is on a nosuid partition. This...

    Started by hrlngrv, 05-27-2013
    • Replies: 2
    • Views: 1,470
    05-29-2013 Go to last post
  3. Where are sshd logs kept?

    Hi Guys, I've just started up my own ssh server (you can read about the whole sorry affair in this thread :rolleyes: ), and I'm feeling a little...

    Started by smolloy, 11-06-2006
    • Replies: 6
    • Views: 213,369
    05-22-2013 Go to last post
  4. Thumbs up Load program to RAM and run without knowledge about mounted partitions

    So, i have following so-called problem. I would like to run selected program in RAM memory and i want this program to don't know about mounted disks....

    Started by janepe345, 05-21-2013
    • Replies: 1
    • Views: 711
    05-22-2013 Go to last post
  5. Openldap as an ssh gateway

    I have been asked to configure a central gateway through which our developers can connect to ec2 instances. The central gateway must be configured...

    Started by stuwat, 05-07-2013
    • Replies: 1
    • Views: 823
    05-08-2013 Go to last post
  6. Question Iptables in linux

    Hi, I am working on Fedora18 virtual machine. I want to try some rules of iptables. I have no experience for testing the rules from the outside...

    Started by moonli9ht, 05-06-2013
    • Replies: 5
    • Views: 763
    05-07-2013 Go to last post
  7. fwsnort firewall not ablet to detect the DDos attack

    Hi I have installed the fwsnort and psad in centos. I was able to block any unwanted traffic with fwsnort and psad but I was not able to block...

    Started by niraj.vara, 04-26-2013
    2 Pages
    1 2
    • Replies: 11
    • Views: 1,989
    04-30-2013 Go to last post
  8. [SOLVED] iptables and vpn traffic

    Hi. I'm trying to secure a virtual lab environment i have, but i'm having some problems. The environment consists of a couple of servers and clients...

    Started by Neznix, 04-29-2013
    • Replies: 0
    • Views: 701
    04-29-2013 Go to last post
  9. [SOLVED] psad is not mailing me alerts

    I'm running Sabayon hardened server. I followed a guide on setting up arno's iptables firewall with psad. I'm not permitted to post URLs yet until...

    Started by evilducky, 04-24-2013
    • Replies: 4
    • Views: 998
    04-26-2013 Go to last post
  10. suricata firewall with iptables

    Hi I have installed the suricata firewall with pf_ring. now I want to integrate the same with iptables. but I am not able to get the proper...

    Started by niraj.vara, 04-24-2013
    • Replies: 3
    • Views: 2,997
    04-25-2013 Go to last post
  11. Rootkit Detection and Removal

    Good morning, My server was running very poorly for a couple of days with mysqld chewing up lots of resources. Then last night it really started...

    Started by EricL, 04-17-2013
    • Replies: 2
    • Views: 1,109
    04-19-2013 Go to last post
  12. Question Kylin and Linux malware

    Recently, the government of China announced that their homegrown OS Kylin, a variant of Ubuntu (I think), will become the standard platform for all...

    Started by Blueclef, 03-24-2013
    • Replies: 3
    • Views: 1,510
    04-18-2013 Go to last post
  13. linux iptables firewall

    Hi, I'm trying to set iptables firewall rules. But i'm having a problem , after applying my rules, it blocks all the connections, i'm not sure...

    Started by met0555, 04-11-2013
    • Replies: 5
    • Views: 1,054
    04-13-2013 Go to last post
  14. Question permissions problem

    Hello We want to take a back-up of a NAS(VNX5300) to VTRAK's(disks). Now we see that a lot of file only have permissions for the owner. so the...

    Started by JackieJarvis, 04-10-2013
    • Replies: 1
    • Views: 618
    04-10-2013 Go to last post
  15. Rotation Of SSH Keys from Central Server

    I have already written a script to handle this, but am always looking to improve. The dependency of my script is the ssh-keygen and ssh-copy-id is...

    Started by Pimpntel, 04-02-2013
    • Replies: 3
    • Views: 1,444
    04-04-2013 Go to last post
  16. '' denied: 1466 Time(s) hacking solution

    Hi all, I've been getting these messages ('' denied: 1466 Time(s) ) through on my logwatch. I'm a bit of an amateur but have done...

    Started by alexiag, 03-27-2013
    • Replies: 1
    • Views: 884
    04-01-2013 Go to last post
  17. Need suggestion: Firewall OS to monitor/restrict kid surfing

    Hi, all. My oldest son is 7 yo, and recently took over one of my Linux Mint PCs which he now has in his bedroom. In our home network, right...

    Started by grenness, 03-15-2013
    • Replies: 1
    • Views: 656
    03-16-2013 Go to last post
  18. connectivity problem

    Hi, I am new to Linux, I installed redhat Linux 5. I am trying to connect through putty but no luck. Can anyone help!!! FYI... i am...

    Started by k357911, 03-11-2013
    • Replies: 3
    • Views: 657
    03-15-2013 Go to last post
  19. Securing down RHEL

    Hello, I am looking in opinions on securing my RHEL linux box. I know a very good amount of hacking/security techniques from my hacking days, but I...

    Started by absal0m, 03-08-2013
    • Replies: 6
    • Views: 1,130
    03-12-2013 Go to last post
  20. Passwords for everything

    Linux already requires that I enter a password if I want to install something. I love this security feature, but I would like to see it taken a step...

    Started by carlos-ramos, 03-09-2013
    • Replies: 1
    • Views: 562
    03-09-2013 Go to last post

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