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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: 50,996
    01-11-2010 Go to last post
  1. Is this bad security info?

    I recently read that running: /usr/bin/lsattr `echo $PATH | tr ':' ' '` | grep i-- would identify any files made immutable by a cracker because no...

    Started by clickit, 01-15-2010
    • Replies: 1
    • Views: 1,167
    01-15-2010 Go to last post
  2. syslog

    Hello, I'm trying to parse a syslog log and extract useful informations regarding security issues that have been logged. What information is it...

    Started by Elishac, 12-11-2009
    • Replies: 7
    • Views: 832
    01-14-2010 Go to last post
  3. Number of Linux virusses

    I have a question. How many virusses has written for Linux? Do You have any stats? Maybe any links? It is very important for me.

    Started by Alighieri, 01-11-2010
    2 Pages
    1 2
    • Replies: 10
    • Views: 2,132
    01-12-2010 Go to last post
  4. Tripwire capability

    Does anyone know whether Tripwire can guard against rootkits and scripts are saved as hidden files that make their way to the file system via remote...

    Started by victor43, 01-11-2010
    • Replies: 0
    • Views: 1,124
    01-11-2010 Go to last post
  5. Exclamation Linux Audit

    Hi All, I configured audit logs in my server and its working fine with its default funcation. But the logs generated are huge, so i wan to know...

    Started by ash_ok555, 01-08-2010
    • Replies: 3
    • Views: 3,180
    01-10-2010 Go to last post
  6. How to block a particular website to the clients?

    Hi, I have a proxy server configured on RHEL 5. My boss wants me to block Orkut and other social sites to few client machines. I am not sure how to...

    Started by lilchakki, 01-05-2010
    • Replies: 4
    • Views: 3,287
    01-08-2010 Go to last post
  7. Spam Filtering

    Hello; I have a mail server installed postfix and spamassin. I am receiving fake spam mails sender contains my domain. How can i reject them. I...

    Started by gocebe, 06-17-2009
    • Replies: 1
    • Views: 689
    01-08-2010 Go to last post
  8. my machine is on risk?

    1) I found in auth.log, What is that mean, I didn't do su at that time, 2) Why there has a lot of session opened & closed?

    Started by sf433, 09-03-2005
    • Replies: 3
    • Views: 14,992
    01-08-2010 Go to last post
  9. please help me ddclient

    i installl ddclient and work perfect ubuntu 9.04 the problem that ddclient.conf is not protected anyone use my pc can access to ddclient.conf and...

    Started by alimo, 01-06-2010
    • Replies: 0
    • Views: 518
    01-06-2010 Go to last post
  10. Firewall help

    hi there i have recently bought and old laptop to help me with linux at college (put ubuntu on it and impressed so far), unfotunately i missed a few...

    Started by pinguroolz, 11-26-2009
    • Replies: 5
    • Views: 714
    01-06-2010 Go to last post
  11. Quaratine module

    Hi everybody! I need to find some kernel quaratine module or source code. I found clamav but i don't found exactly quaratine module in the...

    Started by stork, 01-03-2010
    • Replies: 6
    • Views: 671
    01-05-2010 Go to last post
  12. Lost Control of Linux Virtual Machine

    Hi Everyone, I have a unique issue. I am sure it is an easy fix but I am stumped due to my relatively inexperience to Virtual machines and linux....

    Started by gh0pp3r, 01-03-2010
    • Replies: 3
    • Views: 1,144
    01-04-2010 Go to last post
  13. [SOLVED] spyware scanners

    yes i know linux is not as vulnerable to such things. (^_^) but i'm building somewhat of a bootable disk to service windows installs and was...

    Started by itachisxeyes, 12-28-2009
    • Replies: 4
    • Views: 697
    01-02-2010 Go to last post
  14. Restricted ssh

    Hi all, I search an efficient way to restrict ssh connections to only run a specific command. It is intended to be used automaticaly. Say the user...

    Started by Meneth, 12-24-2009
    • Replies: 1
    • Views: 886
    12-28-2009 Go to last post
  15. Cool Firefox and Tor? Forget about it!!

    With mounting security problems I'm finally saying, "Firefox and Tor? Forget about it!!" I want something less bloated like Dillo: I haven't...

    Started by zsexdr, 12-21-2009
    • Replies: 3
    • Views: 1,823
    12-28-2009 Go to last post
  16. Gtkrc file browse in GDM manager (gdmsetup) overrides ALL permissions!!

    I was surprised to find this when accessing the gdm login windows preferences manager. When i click on the general tab and tick the "Gtkrc file"...

    Started by Ganz, 12-24-2009
    • Replies: 0
    • Views: 1,560
    12-24-2009 Go to last post
  17. Enable USB

    Hi All, How to enable a USB in Redhat9 system. I am having a root password for the OS, but i guess it is disabled through BIOS. Is there any...

    Started by, 12-08-2009
    • Replies: 5
    • Views: 722
    12-21-2009 Go to last post
  18. 2.6.31 iptables ignores reply pkt at interface SNAT+VLAN

    Hi, I have a bit complex iptables+nat+mangle+vlan's setup within my box working perfectly with 2.6.30 and previous kernel versions. However, If I...

    Started by luispa, 11-07-2009
    • Replies: 2
    • Views: 2,413
    12-18-2009 Go to last post
  19. virus or trojan?

    In linux binaries, in any linux distro, I've discovered the same strings which I believe may be due to a virus or trojan. Yet, clamav, rkhunter,...

    Started by zsexdr, 12-11-2009
    • Replies: 1
    • Views: 771
    12-12-2009 Go to last post
  20. Question ip filtering and Port filtering

    ip filtering : - filter ip packets based on protocol { UDP ,TCP } , ports , src ip ,dest ip , packet type . Port filtering : - filter ip...

    Started by karana, 12-09-2009
    • Replies: 1
    • Views: 1,726
    12-09-2009 Go to last post

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