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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: 55,399
    01-11-2010 Go to last post
  1. vim security hole

    Yesterday, while browsing in the newbie forum, I found something that astonished me. Someone had made a read-only file, loaded it into vi, altered...

    Started by hazel, 12-30-2010
    • Replies: 5
    • Views: 2,248
    01-02-2011 Go to last post
  2. Can a router be cleaned or formated?

    I got banned in a fun forum for defending myself from a psychotic stalker, who seemed to be hellbent on starting flame wars with me. The monster...

    Started by Cocoa, 12-31-2010
    • Replies: 2
    • Views: 635
    01-02-2011 Go to last post
  3. How much does "Dr. Web" really do?

    When you run "Dr. Web" on an email's link, and it gives you a "clean bill of health" on that link, is that link totally safe, or can a link seem to...

    Started by Cocoa, 12-19-2010
    • Replies: 7
    • Views: 2,847
    01-01-2011 Go to last post
  4. [SOLVED] useradd issue

    Hi all when we add user using useradd command with -m option its home directory also gets created with bash_profile,bashrc ,bash_logout file ...

    Started by Piyu_86, 12-29-2010
    • Replies: 2
    • Views: 2,751
    12-29-2010 Go to last post
  5. Smile projects ideas

    I need projects ideas in network security system like java cards application ,fighting spam with postfix.........

    Started by staph, 10-22-2010
    • Replies: 1
    • Views: 1,249
    12-17-2010 Go to last post
  6. userdel command

    Hi all I am facing one problem with userdel command my home directory permission is set to 755 and the owner is root group is also root ...

    Started by Piyu_86, 12-14-2010
    • Replies: 1
    • Views: 1,811
    12-15-2010 Go to last post
  7. set environment variable for non interactive ssh login

    hi all I am facing one problem regarding ssh login and setting environment variable i have written $HOME/.ssh/environment file...

    Started by Piyu_86, 12-13-2010
    • Replies: 0
    • Views: 3,867
    12-13-2010 Go to last post
  8. Making Secured Connection Using Lighttpd Web Server

    Hi, I have cross compiled and configured lighttpd server on my PXA270 ARM board. I am able to login to this server through http connection....

    Started by sumitv, 12-03-2010
    • Replies: 3
    • Views: 1,186
    12-06-2010 Go to last post
  9. Secure /etc/fstab configuration

    Hi, I would like to have some comments on my /etc/fstab configuration. I want to have usability and security. Did I succeed? proc ...

    Started by Keessince1988, 11-29-2010
    3 Pages
    1 2 3
    • Replies: 22
    • Views: 5,968
    12-05-2010 Go to last post
  10. A simple question about suid

    I was just curious to know: if I run a program which runs suid as root, and it crashes, what are my access rights at that point? Am I still root or...

    Started by hazel, 11-18-2010
    • Replies: 4
    • Views: 852
    11-23-2010 Go to last post
  11. how to log file access

    Hi all, I want to log all access from other users to my specific files. For instance, I wan to know who read or copy my files. If anybody...

    Started by it_nb, 10-05-2005
    • Replies: 3
    • Views: 5,575
    11-19-2010 Go to last post
  12. openssh: why difference in transfer speed?

    Using sftp on openssh, I notice consistently my download speed (from server to desktop) is about twice as fast as the upload speed. Anyone know...

    Started by sftpfilecontrol, 09-14-2010
    • Replies: 4
    • Views: 1,441
    11-14-2010 Go to last post
  13. Compromised Linux servers

    What is the best way to investigate a compromised Linux Server? I have downloaded Knoppix 6.2.1 on my laptop which is booting off my USB drive. What...

    Started by epacheco, 11-13-2010
    • Replies: 2
    • Views: 1,047
    11-13-2010 Go to last post
  14. Encrypting Backups

    Hello I have a backup script that tars directories and place it on another FS, I want to include encryption of the files being transferred but...

    Started by abusam, 10-27-2010
    • Replies: 4
    • Views: 818
    11-10-2010 Go to last post
  15. Question on iptables

    Hello everyone, I need to configure an iptables in order to blocks everything except web traffic and the file transfer protocol. I searched for...

    Started by lovesunset21, 11-08-2010
    • Replies: 0
    • Views: 625
    11-08-2010 Go to last post
  16. evolution and pgp

    Not sure this is the best group to post to. Apologies if it isn't. Can anyone point me to software or configuration help that will allow me to...

    Started by jgeorge, 10-29-2010
    • Replies: 2
    • Views: 1,332
    11-07-2010 Go to last post
  17. Test jail, jailkit.

    Hi, does anyone know of a utility that can test a jail? i used jailkit to set mine up and it came with a tool to test the it, unfortunately it...

    Started by TheJanitor, 10-24-2010
    • Replies: 1
    • Views: 923
    10-25-2010 Go to last post
  18. Using Shorewall to port forward traffic to eth1

    Hello, This is my first time using shorewall and i was hopping i can get some help from this forum. So here is my problem: I have a debian...

    Started by mafiozoi, 10-21-2010
    • Replies: 0
    • Views: 1,403
    10-21-2010 Go to last post
  19. [SOLVED] Using Shorewall to forward all email traffic to specific server

    We purchased another company that has their own domain and email server (Exchange). The server sits inside our network now but I need to accept email...

    Started by jackaninny, 10-19-2010
    • Replies: 1
    • Views: 1,671
    10-19-2010 Go to last post
  20. What is the most eligible method to ban IP ..

    Looking for eligible solution to ban IP on excessive 404 errors for Apache. Like you could define that 5x 404 requests to your Apache and then that...

    Started by GameFrame, 10-14-2010
    • Replies: 2
    • Views: 1,238
    10-19-2010 Go to last post

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