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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: 65,770
    01-11-2010 Go to last post
  1. iptables Question

    I have a CentOS 5.7 VM I use for secure communications. It has an interface to my private LAN (eth0) and a secure VPN interface using OpenVPN...

    Started by SvartaHufa, 10-26-2011
    • Replies: 8
    • Views: 2,542
    10-29-2011 Go to last post
  2. Avast not working

    Hi, I just put avast for linux on both of the computer in my rkhunter thread. And now the Avast won't work at all. Whenever I try to open avast...

    Started by jreidsma, 09-24-2011
    • Replies: 2
    • Views: 2,154
    10-28-2011 Go to last post
  3. Aircrack-ng Captures WPA Handshake but Doesn't Display

    (Using xubuntu 11.10 - but it's happend on every *buntu 11.10 distros I've used) I have more of an annoyance than an "issue". When testing my own...

    Started by GrantStoner, 10-20-2011
    • Replies: 0
    • Views: 1,782
    10-20-2011 Go to last post
  4. Account hacked.

    My World of Warcraft account was recently hacked and I've run scans with the following: Hitmanpro,Malwarebytes,SuperAntiSpyware, Doctor Web, but but...

    Started by masudan, 10-19-2011
    • Replies: 3
    • Views: 1,117
    10-20-2011 Go to last post
  5. Angry Snort doesn't detect everything.

    Hello, At our University we've got a Security Lab that has total access to the internet. And the University network administrators have no...

    Started by RobinVossen, 10-14-2011
    • Replies: 5
    • Views: 2,793
    10-18-2011 Go to last post
  6. Shorewall - Allow PPTP

    Hello everyone, I'm trying to get PPTP working from net to loc or from WAN to LAN. The port 1723 is open and when I try to connect with PPTP it...

    Started by Jonathanb, 10-11-2011
    • Replies: 0
    • Views: 1,178
    10-11-2011 Go to last post
  7. No internet in local net with shorewall

    Hi all, install a shorewall 4 on a debian squeeze, configure the interfaces and the files, but I can not have internet on the local network. I can...

    Started by CarinaVB, 10-09-2011
    • Replies: 0
    • Views: 1,113
    10-09-2011 Go to last post
  8. Antivirus for REDHAT

    Do i need antivirus for redhat enterprise linux 4?

    Started by syed_faisal_naseem, 10-08-2011
    • Replies: 3
    • Views: 10,512
    10-08-2011 Go to last post
  9. Exclamation Comcast ISP in my XHOST; FAST Search & Transfer in XAUTH list

    Here's what I'm looking at: $ xhost access control enabled, only authorized clients can connect INET:$ xhost -

    Started by jdash, 10-07-2011
    • Replies: 0
    • Views: 966
    10-07-2011 Go to last post
  10. Use remote proxy via SSH

    Hi all, I am trying to encrypt my Web traffic by ssh'ing into a remote computer as described here:...

    Started by chotty, 10-05-2011
    • Replies: 0
    • Views: 1,184
    10-05-2011 Go to last post
  11. skipping redirect rule

    I am wanting to redirect all port 80 traffic to my web server unless I have your mac address, then you should be able to browse the Internet. I...

    Started by Kumado, 10-04-2011
    • Replies: 0
    • Views: 615
    10-04-2011 Go to last post
  12. ssh-keygen?

    I am wondering if anybody is familar with how the code for this utility is written. Basically my main concern does ssh-keygen always produce the...

    Started by sam111, 09-30-2011
    • Replies: 3
    • Views: 1,929
    09-30-2011 Go to last post
  13. PAM authentation

    Hi all how can i protect dovect from dictionary attack, my Dovect server authenticate users from 389 server (LDAP). is there is any way to prevent...

    Started by mibrahim, 09-27-2011
    • Replies: 5
    • Views: 1,616
    09-28-2011 Go to last post
  14. Security Script

    I am having trouble writting a script that basically goes and looks through all of my running process's, and see's if someone other than me is logged...

    Started by MatthewCLisko, 09-26-2011
    • Replies: 1
    • Views: 778
    09-28-2011 Go to last post
  15. Red Hat Enterprise 6 Hackable ?

    Dear, Forum Im using Red Hat Enterprise new for a few days and im wondering how easy it is from someone outside to hack my computer and view my...

    Started by Nickkessels, 09-23-2011
    • Replies: 3
    • Views: 1,072
    09-28-2011 Go to last post
  16. Question IPTables and FORWARD chain

    Hello guys. I'm reading about IPTables and its tables and chains, but I have some problems understanding how a forward works. I wrote some...

    Started by theuser26, 07-16-2011
    • Replies: 2
    • Views: 1,439
    09-27-2011 Go to last post
  17. Question Unusual Network Activity Monitored

    Hi, I have just noticed an unusual continuous incoming netwok traffic in my Linux(Fedora 13) web server. But at that time, there were no outgoing...

    Started by amithad, 09-26-2011
    • Replies: 0
    • Views: 779
    09-26-2011 Go to last post
  18. Losing Connectivity

    I have a triple-boot machine with the following OS's: 1) RHEL 5.4 2) Vista SP2 3) RHEL 5.3 I am set up with static IP addresses all within the...

    Started by felton57, 09-26-2011
    • Replies: 0
    • Views: 634
    09-26-2011 Go to last post
  19. RKHunter Warnings?

    Hi, I just did a scan on two of my linux conputers with chkrootkit and Rkhunter. chkrootkit showed nothing on both. But rkhunter said otherwise, it...

    Started by jreidsma, 09-24-2011
    • Replies: 5
    • Views: 13,502
    09-24-2011 Go to last post
  20. SSH Tunnel Security

    Hi there, The fun police at work have blocked a number of previously accessible sites. Due to this, I am considering setting up and SSH Tunnel to...

    Started by not_the_messiah, 09-23-2011
    • Replies: 3
    • Views: 1,607
    09-24-2011 Go to last post

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