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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: 68,522
    01-11-2010 Go to last post
  1. Question Am I being monitored?

    Dear Colleagues I want to know, how could I find that, I am monitored by a software installed in my Linux box. When I check the services of...

    Started by amithad, 08-13-2013
    2 Pages
    1 2
    • Replies: 12
    • Views: 1,464
    08-19-2013 Go to last post
  2. password

    Ī'm still somewhat new, but I have a question based on an observation I just saw. I just tried to cha˝ge my password for a user in centos. It kept...

    Started by dragonix, 08-13-2013
    • Replies: 5
    • Views: 1,020
    08-15-2013 Go to last post
  3. advanced folder and file permissions

    Hello, is there a possibility to change the user permissions, so that the user can onyl read and delete files in a specified folder but can not...

    Started by Bit-Devil, 08-13-2013
    • Replies: 1
    • Views: 583
    08-13-2013 Go to last post
  4. Connectivity issue : Putty from windows to linux

    Hi, I'm facing connectivity issue while connecting through putty. I can ping from windows to Linux but putty I can't, How can we check vmware...

    Started by k357911, 04-25-2013
    2 Pages
    1 2
    • Replies: 10
    • Views: 1,573
    07-29-2013 Go to last post
  5. Defeating OS fingerprinting

    After hours and hours of hopeless searching, the closest thing I could find is this: Passive-Aggressive Resistance: OS Fingerprint Evasion | Linux...

    Started by Pyrobisqit, 07-26-2013
    • Replies: 5
    • Views: 1,319
    07-28-2013 Go to last post
  6. Question Strength of Linux security - integrity of applications

    Hey guys. So I am thinking about building a new HTPC, and am thinking about a Linux installation - Ubuntu being at the top of the current list....

    Started by Phoeniyx, 07-18-2013
    • Replies: 6
    • Views: 821
    07-19-2013 Go to last post
  7. Ensure No Device Files are Unlabeled by SELinux

    I have FINALLY taken the blinders off my Solaris eyes and have delved into the unix? world we now know as RHEL6. :p I am in the process of...

    Started by HDBNGR, 07-09-2013
    • Replies: 1
    • Views: 1,755
    07-13-2013 Go to last post
  8. packet rejected by firewall

    Hi In my firewall blocking the following request. what sud I required to do so that firewall not block the same. I have following Iptalbles...

    Started by niraj.vara, 06-27-2013
    2 Pages
    1 2
    • Replies: 11
    • Views: 2,202
    07-05-2013 Go to last post
  9. What are these, why are they installed, and should I be concerned?

    I originally posted this in the Linux Mint forums but most of the suggestions that I got were related to getting a new browser, or reinstalling...

    Started by Overnumerousness, 06-29-2013
    • Replies: 3
    • Views: 901
    07-01-2013 Go to last post
  10. Disabling Root Permissions

    From Linux From Scratch build a minimal system for running my application. but struck on disabling root permission. Need my minimal lfs as ubuntu....

    Started by ssanthshtech, 05-21-2013
    • Replies: 2
    • Views: 795
    06-22-2013 Go to last post
  11. 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: 1,091
    06-03-2013 Go to last post
  12. 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: 1,414
    05-29-2013 Go to last post
  13. 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: 212,765
    05-22-2013 Go to last post
  14. 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: 702
    05-22-2013 Go to last post
  15. 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: 796
    05-08-2013 Go to last post
  16. 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: 754
    05-07-2013 Go to last post
  17. 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: 1,967
    04-30-2013 Go to last post
  18. [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: 685
    04-29-2013 Go to last post
  19. [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: 951
    04-26-2013 Go to last post
  20. 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: 2,790
    04-25-2013 Go to last post

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