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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: 52,814
    01-11-2010 Go to last post
  1. Rejecting packets

    hi, I'm trying to develop a content filter.The problem is after dropping the packets i need to send "host unreachable" icmp message.But i don't...

    Started by bharat.bvrit, 12-06-2007
    • Replies: 3
    • Views: 794
    12-06-2007 Go to last post
  2. chmod Race Condition

    Hi everyone... Yesterday, while I was searching for some umask tutorials, I've bumped into this: PHP: umask - Manual Please take a quick...

    Started by Master Blaster, 11-24-2007
    • Replies: 5
    • Views: 2,148
    12-06-2007 Go to last post
  3. Bind DNS - Find machine requesting lots of failing lookups

    I am seeing lots of the failed lookups in fast succession in my logs and want a way of finding out which client ip is requesting those records from...

    Started by humbletech99, 11-29-2007
    • Replies: 6
    • Views: 720
    12-02-2007 Go to last post
  4. How to restore iptables starting script

    Hi folks, Ubuntu 7.04 server amd64 Just found iptables NOT running which, I suppose, was caused by accidentally deleting /home/satimis...

    Started by satimis, 12-01-2007
    • Replies: 2
    • Views: 1,961
    12-01-2007 Go to last post
  5. Question Proventia problems

    Hi. I am having a problem with my Proventia GX4004 IPS which uses Linux of course. I'm not sure what type of Linux it uses. I tried to restore the...

    Started by HypeKat, 11-29-2007
    • Replies: 5
    • Views: 4,440
    11-30-2007 Go to last post
  6. Thinking out theory for secure ssh

    Well, I run a ApplicationServer. And they settings has to be saved on the localbox. So I want to mount the /home folder on connect with NFS. I want...

    Started by RobinVossen, 11-30-2007
    • Replies: 0
    • Views: 728
    11-30-2007 Go to last post
  7. 2 questions about security ( chmod and LDAP )

    Hello everyone, im securing few servers, and in all of them, i need create the user, modify her password at first time, modify a special bashrc to...

    Started by billy_boy, 11-28-2007
    • Replies: 2
    • Views: 1,576
    11-29-2007 Go to last post
  8. flood blocker via htaccess

    (i am using vb 3.6.8 in shared host) is it possbile to block flood attack using htaccess someone attack (via vbulletin) my site using a...

    Started by zodehala, 11-22-2007
    • Replies: 3
    • Views: 3,366
    11-23-2007 Go to last post
  9. Problems with Sudo Config

    Hi, I tryed to work with sudo for Quite a while now. I thought I understood how it worked. But I just figured out I was wrong.. Anywho, I cant...

    Started by RobinVossen, 10-31-2007
    • Replies: 7
    • Views: 930
    11-22-2007 Go to last post
  10. openSSH no passwd problem

    I am running Ubuntu 7.10 and followed the guidelines in to set up a RSA Key-Based SSH Logins with...

    Started by zkab, 11-22-2007
    2 Pages
    1 2
    • Replies: 11
    • Views: 3,316
    11-22-2007 Go to last post
  11. Small Document about Security

    here is a Small Document I once wrote about Security. I thought people might be interested. Well tell me what you think of it. I hope its usefull....

    Started by RobinVossen, 11-22-2007
    • Replies: 0
    • Views: 587
    11-22-2007 Go to last post
  12. problem with tunneling

    Hi! I create a tunnel in this way: ssh root@local_host to enter in my local host and from here ssh -L 10123:localhost:389...

    Started by ojalÓ, 11-22-2007
    • Replies: 3
    • Views: 929
    11-22-2007 Go to last post
  13. Firefox hijacked

    When I try to open Distrowatch in firefox, my browser takes me to del.ici.ous. When I try to open the Paldo Linux website, I get taken to some...

    Started by actaea, 11-21-2007
    • Replies: 2
    • Views: 2,330
    11-22-2007 Go to last post
  14. ipkungfu - services /etc/rc.local

    Hi on my gutsy ubuntu installation (kubuntu) I have used ipkungfu as my firewall script. I added ipkungfu to /etc/rc.local so that it starts on boot....

    Started by flebber, 11-14-2007
    • Replies: 3
    • Views: 1,381
    11-15-2007 Go to last post
  15. Thumbs up openvpn username password authentication problem

    Hi to all, I am working with openvpn. I can connect from one network to the other network using vpn. But I want to add one feature like...

    Started by lovelylinux, 11-13-2007
    • Replies: 0
    • Views: 4,988
    11-13-2007 Go to last post
  16. ClamAV Warning, what does it mean?

    LibClamAV Warning: cli_utf16toascii: length < 2 LibClamAV Warning: cli_utf16toascii: length < 2 LibClamAV Warning: cli_utf16toascii: length < 2...

    Started by poiu9876, 11-13-2007
    • Replies: 1
    • Views: 1,443
    11-13-2007 Go to last post
  17. running firestarter

    this is all i am running right now.. do you think its enough???ubu

    Started by poiu9876, 11-12-2007
    • Replies: 6
    • Views: 1,636
    11-13-2007 Go to last post
  18. Good Firewall Distro

    So I want to turn an old P3 box into a firewall. I know there are a lot of distros out there that claim to be for firewalls/gateways/servers. Some...

    Started by TorchlightJay, 11-04-2007
    • Replies: 3
    • Views: 3,459
    11-05-2007 Go to last post
  19. My linux is a website zombie

    Hi, My Fedora core 6 install is a web zombie, it visit random sites attempting to access user accounts, post on forums etc. I am not able to find...

    Started by ae7272, 10-30-2007
    • Replies: 3
    • Views: 924
    11-03-2007 Go to last post
  20. Unhappy Chroot ssh login problem

    Hello everyone, im having troubles installing a ssh chrooted envioroment; at first look everything works fine, doing a "chroot /chroot/ /bin/sh" i...

    Started by billy_boy, 10-31-2007
    • Replies: 1
    • Views: 2,531
    11-01-2007 Go to last post

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