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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: 72,377
    01-11-2010 Go to last post
  1. Smile disable ctrl+Alt+Fx?

    how can i disable "that",so user can't use virtual terminal!! thx..

    Started by kudos, 06-23-2006
    • Replies: 6
    • Views: 6,438
    07-03-2006 Go to last post
  2. Linux live CD firewalls

    Hello. I want to set up a live CD Linux firewall on a dedicated PC. I am fairly new to Linux and firewalls and have these questions: 1) Is there...

    Started by GottaBuild, 06-29-2006
    • Replies: 1
    • Views: 5,743
    06-29-2006 Go to last post
  3. Vpn

    Has anyone setup a linux vpn in fedora core 4 or red hat 9.I mhaving probs w.r.t setting it up via 2 nics . kindly help

    Started by s_hcl, 06-28-2006
    • Replies: 0
    • Views: 1,001
    06-28-2006 Go to last post
  4. Can't update KlamAV

    When I attempt to update KlamAV I get the error message "Can't change directory". The download directory path is /root/.klamav/database. Does anyone...

    Started by bossdog22, 06-25-2006
    • Replies: 0
    • Views: 2,256
    06-25-2006 Go to last post
  5. One time password (OTP) suggestion

    Hi folks, One time password (OTP) OR Tokenless Password to replace the hard token. I have been searching for OTP software on Sourceforge and...

    Started by satimis, 06-24-2006
    • Replies: 0
    • Views: 1,899
    06-24-2006 Go to last post
  6. question regarding suid

    Hi I have made a script which executes some commands of iptables. Now I want that other users also should be able to execute this script, so...

    Started by vimase, 06-23-2006
    • Replies: 1
    • Views: 1,083
    06-23-2006 Go to last post
  7. SSHD setup

    With sshd, is it possible to track failed passwords in addition to failed usernames? I have been asked by my supervisor to create and maintain a...

    Started by jivesoul, 06-19-2006
    • Replies: 5
    • Views: 2,174
    06-20-2006 Go to last post
  8. Windows and ARP tables + MITM = DOS

    I've been screwing around with ettercap the past couple of days and I just figured out what all of my problems are: the ARP poisoning in ettercap. ...

    Started by prochobo, 06-18-2006
    • Replies: 0
    • Views: 2,916
    06-18-2006 Go to last post
  9. Cron not working

    I am using redhat FC2, i realised that the crond is always not very stable. Everytime i have to reboot the box in order to get it working after a...

    Started by kenny2004, 09-18-2004
    • Replies: 4
    • Views: 12,178
    06-14-2006 Go to last post
  10. Security Survey

    Hi, My colleague and I are doing a research about network security. This research is in cooperation with the college of Ghent, Belgium. A part...

    Started by coupe, 06-06-2006
    • Replies: 0
    • Views: 1,049
    06-06-2006 Go to last post
  11. Dnat to server located in local network

    Hello all , I read Andersson's manual about iptables. The output of iptables -t nat -L are as follows debian:/home/# iptables -t nat -L Chain...

    Started by ek100, 06-05-2006
    • Replies: 0
    • Views: 1,059
    06-05-2006 Go to last post
  12. firewall issue

    Hi, I have a FC 3 box as my nat/firewall. It is running firestarter. My nework looks similar to this: ,-------------------------, ...

    Started by q1001001, 05-30-2006
    • Replies: 0
    • Views: 1,067
    05-30-2006 Go to last post
  13. RSA versus DSA

    I was just having a play with SSH and I came across the option to generate RSA or DSA keys. What is the difference between these two options? Also,...

    Started by Allblack, 08-24-2003
    2 Pages
    1 2
    • Replies: 11
    • Views: 172,670
    05-29-2006 Go to last post
  14. Writing SE Linux policy

    I'm trying to implement a policy for an ICQ client and, maybe, for other network clients that may provide a huge security leak within a user's...

    Started by kalium, 05-27-2006
    • Replies: 0
    • Views: 1,088
    05-27-2006 Go to last post
  15. Exclamation iptablesfirewall port block not working-urgent

    Hi, I have given my full setup info below step by step Note: when any of the link goes down i need to use the other link for both...

    Started by krishnan.gopal, 05-16-2006
    • Replies: 1
    • Views: 3,344
    05-27-2006 Go to last post
  16. MD5 is broken, Let's do SHA.

    Well, as some of you may be aware, an MD5 collision can be generated in like 17 seconds on a laptop. I'd like to see SHA-512 implemented at the...

    Started by jwilliams, 05-27-2006
    • Replies: 0
    • Views: 1,345
    05-27-2006 Go to last post
  17. Iptables and Exim

    I have an exim mail server running with no problems at all, recently I added apache to run a site and made it accessible to specific IPs with...

    Started by Slowfib, 05-16-2006
    • Replies: 1
    • Views: 2,673
    05-23-2006 Go to last post
  18. Unhappy Please I Need Your Help

    Does anyone know about counters? Someone told me that if you enter a group or site with a counter they can trace your internet service provider...

    Started by queenbee, 05-19-2006
    • Replies: 3
    • Views: 1,109
    05-19-2006 Go to last post
  19. Restrict WINSCP on Fedora server

    How would I restrict a windows user (using WINSCP) from: 1. Being to see anything in the file structure on the linux server EXCEPT his own home...

    Started by reggy, 05-18-2006
    • Replies: 0
    • Views: 2,079
    05-18-2006 Go to last post
  20. I seem to be sending spam

    Going through my logs this morning I found that sendmail has been sending out what looks like spam at 8.20 each morning. Sendmail runs once an hour...

    Started by Rotsky, 05-14-2006
    • Replies: 3
    • Views: 5,821
    05-17-2006 Go to last post

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