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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: 51,526
    01-11-2010 Go to last post
  1. How do you do bock spoofing attack, invalid packets and other?

    How do you do bock spoofing attack, invalid packets and other? Please, post you code for iptables.

    Started by wertum, 07-27-2010
    • Replies: 1
    • Views: 770
    08-03-2010 Go to last post
  2. Server infected with scanssh, pscan2, ./sshf. Urgent Help Required

    HI Gurus, I am facing a security issue on my server. I can see many process like pscan2, scanssh and ./sshf processing on 'top'. The owner of...

    Started by Xaeem, 07-31-2010
    • Replies: 2
    • Views: 5,234
    08-02-2010 Go to last post
  3. Running services as specific users

    Hi guys, I'm not new to Linux but no expert by any means and currently I'm running Gentoo. Something I've always wondered about is how you go about...

    Started by FunkyMcBain, 08-01-2010
    • Replies: 4
    • Views: 1,056
    08-02-2010 Go to last post
  4. Linux and malware

    Hi! I am completly new to Linux, and this is my first thread on this forum. We have a network at my job that needs to be completly offline due...

    Started by hovmedia, 07-30-2010
    • Replies: 1
    • Views: 675
    07-30-2010 Go to last post
  5. Write Permisson Denied

    I created a user "CATUSER" and using the usermod command I had set the secondary group of the "CATUSER" to "beagrp". usermod -a -G beagrp CATUSER...

    Started by balamuruganmurthy, 07-28-2010
    • Replies: 2
    • Views: 852
    07-29-2010 Go to last post
  6. Bastille on Debian 5.0

    Hallo I habe Problem to applay my instruction on my Debian lenny 5.0. here ist the error-log ich habe versuche Bastille zu installalieren es...

    Started by Angela1, 07-27-2010
    • Replies: 2
    • Views: 1,312
    07-28-2010 Go to last post
  7. create ssl cert with owner info

    if i go to, for example, https firefox will tell me that the owner is unknown, whereas if i go to https their ssl cert provides...

    Started by spezticle, 06-29-2010
    • Replies: 1
    • Views: 1,266
    07-26-2010 Go to last post
  8. [SOLVED] CBL Keeps Listing

    Hi all, I am using the latest version of Plesk with my CentOS server. For some reason, CBL keeps listing my server's IP address. I made the open...

    Started by telmessos, 07-22-2010
    • Replies: 1
    • Views: 1,704
    07-26-2010 Go to last post
  9. Can't Run BitDefender Antivirus on Ubuntu 10.04?

    I downloaded BitDefender off their website, and tried running the program. After download, a window pop up that said "An error occured while loading...

    Started by Alvina, 07-22-2010
    • Replies: 3
    • Views: 3,424
    07-23-2010 Go to last post
  10. syslogger query

    I'm using a security audit tool which gives the following requirement for mail logging: mail.* /var/log/maillog mail.none /var/log/maillog...

    Started by matonb, 07-20-2010
    • Replies: 0
    • Views: 419
    07-20-2010 Go to last post
  11. Encrypt my data on a multi-boot computer

    Hi, To gain some privacy (and stuff like this), I would like to encrypt my data. I'm not looking for the absolute best secure method in the world...

    Started by martvefun, 07-19-2010
    • Replies: 0
    • Views: 1,068
    07-19-2010 Go to last post
  12. Question about files in /tmp folder

    In my /tmp folder, i have two items which are locked: orbit-gdm pulse-PKdhtXMmr18n Is this normal/safe? If not, is it safe to delete these?

    Started by Ocifer, 07-18-2010
    • Replies: 1
    • Views: 7,179
    07-18-2010 Go to last post
  13. Paranoia

    Ok, so one day My machine went crazy. The mail server stopped working, and I had to completely re-install it and it took forever. So I was...

    Started by xilus, 07-07-2010
    • Replies: 4
    • Views: 862
    07-17-2010 Go to last post
  14. Question problem with script

    Hi every one I have started to deal with Linux from nearly time I have network can prevent any one to log in if he/she don't register the MAC...

    Started by blaly, 07-11-2010
    • Replies: 3
    • Views: 680
    07-15-2010 Go to last post
  15. Question are linux have virus?

    hi all are os linux can be infect with virus or Trojan? please any information help me regard vip

    Started by vipser, 07-10-2010
    • Replies: 4
    • Views: 850
    07-13-2010 Go to last post
  16. Openssh: renaming keys

    am using openSSH on Debian Lenny. For years now I've used ssh key create by using ssh-keygen -t rsa It offers the default name of id_rsa...

    Started by bill-linux, 06-25-2010
    • Replies: 2
    • Views: 2,817
    07-08-2010 Go to last post
  17. auditctl - man page confusion

    Am I having a senior moment or is this just confusing: The auditctl man page (RHEL 4) states: success If the exit value is >= 0 this is...

    Started by matonb, 06-16-2010
    • Replies: 2
    • Views: 2,002
    07-06-2010 Go to last post
  18. Virus Migration Across Partitions

    I run a laptop with Windows 7 (64-bit). Sometimes I boot Linux from an image on CD. So basically the Linux OS runs temporarily in the ram (so on...

    Started by Comphelp144, 07-05-2010
    • Replies: 2
    • Views: 1,323
    07-06-2010 Go to last post
  19. Vulnerability list of Linux web browsers ??

    Hi , I am working on network security and working on Host Intrusion Detection System . I am looking for sites which contains the latest...

    Started by LInsec, 06-22-2010
    • Replies: 3
    • Views: 1,468
    06-25-2010 Go to last post
  20. How to detect auto dialers

    Hi, What are the possible ways to detect auto dialers ,which make calls without users consent, in linux. Is it possible to disable dialing...

    Started by chamalsl, 06-24-2010
    • Replies: 1
    • Views: 1,130
    06-24-2010 Go to last post

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