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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: 71,536
    01-11-2010 Go to last post
  1. Dynamic security context by PID

    I'm a newbie, and I have a question about whether or not a security context can be dynamically applied to a PID. Here's an example, I have a master...

    Started by dch, 01-21-2011
    • Replies: 0
    • Views: 879
    01-21-2011 Go to last post
  2. sshd attack?

    Hello. I'm new to these forums, but have been using linux for several month, lately I have been having issues where sshd loads many processes, all...

    Started by MrLeft, 01-15-2011
    • Replies: 2
    • Views: 14,176
    01-15-2011 Go to last post
  3. DOS Attacks from my Server as a source

    Hi all, today i got a message from my provider saying my server was disconnected from the network because my server is sending DOS attacks. ...

    Started by Defjam, 01-07-2011
    • Replies: 4
    • Views: 4,565
    01-12-2011 Go to last post
  4. SEC issue on regex recog

    Hi, I'm new to this forum and I need some explanation about the using of te regular expressions to gathering information, using SEC, on the logs...

    Started by velegi, 01-10-2011
    • Replies: 2
    • Views: 1,104
    01-10-2011 Go to last post
  5. Jail firefox.

    So i have been using Linux for a couple of years now and i still don't like the idea of my browser running naked on the interwebz, so i was going to...

    Started by TheJanitor, 01-06-2011
    • Replies: 4
    • Views: 1,470
    01-09-2011 Go to last post
  6. running sshd on a differnet port

    Hi, I have two different networks, A and B and need to be able to connect from A to B over the open internet. A is behind a firewall, B is...

    Started by parkejr, 01-07-2011
    • Replies: 4
    • Views: 1,407
    01-08-2011 Go to last post
  7. how to Avoid adding users to group like wheel?

    i just want to prevent from now on from all users maybe even root from adding other users to groups like wheel for example. I also want to know how...

    Started by yakikaki30, 01-07-2011
    • Replies: 1
    • Views: 771
    01-07-2011 Go to last post
  8. 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: 2,803
    01-02-2011 Go to last post
  9. 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: 766
    01-02-2011 Go to last post
  10. 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: 3,135
    01-01-2011 Go to last post
  11. [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: 3,135
    12-29-2010 Go to last post
  12. 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: 1,371
    12-17-2010 Go to last post
  13. 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: 2,033
    12-15-2010 Go to last post
  14. 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: 4,353
    12-13-2010 Go to last post
  15. 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: 1,368
    12-06-2010 Go to last post
  16. 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: 6,972
    12-05-2010 Go to last post
  17. 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: 1,042
    11-23-2010 Go to last post
  18. 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: 5,709
    11-19-2010 Go to last post
  19. 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: 1,633
    11-14-2010 Go to last post
  20. 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: 1,174
    11-13-2010 Go to last post

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