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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: 69,361
    01-11-2010 Go to last post
  1. Shadow File

    In what encryption way is the Password saved in the shadow file? Since well, I have 3 users with same password. And the Hash is Diffrent every 3...

    Started by RobinVossen, 10-03-2007
    • Replies: 2
    • Views: 2,456
    10-03-2007 Go to last post
  2. SELinux

    I have just decided to learn SELinux and to demonstrate how to use it for my final year project. My main problem comes in the implementation...

    Started by nengo, 09-30-2007
    • Replies: 2
    • Views: 847
    10-02-2007 Go to last post
  3. turning off and on the kids internet access.

    # ============================================================================= # block kids : nate 23: tim d9: bob 78: rae 2f: #...

    Started by rharvey, 09-30-2007
    • Replies: 3
    • Views: 943
    10-01-2007 Go to last post
  4. SSH = Permission Denied

    While on the console, I am able to login and su - to root, as root, however, I try to access another machine on the network via ssh and given a...

    Started by mjc, 09-25-2007
    • Replies: 1
    • Views: 16,580
    09-25-2007 Go to last post
  5. ebtables package delivered with standard distros?

    Is the ebtables package delivered in any standard distros? The page in sourceforge claims that is is standard with Linux 2.6 and higher, but it is...

    Started by haral, 09-19-2007
    • Replies: 0
    • Views: 759
    09-19-2007 Go to last post
  6. Problem on running anonymous proxy

    Hi folks, Ubuntu 7.04 amd64 I have "SwitchProxy Tool 1.4.1", the addon of Firefox, installed and played around with it. SwitchProxy...

    Started by satimis, 09-19-2007
    • Replies: 0
    • Views: 1,196
    09-19-2007 Go to last post
  7. Question GPG file decryption and encryption without adding the key to the ring.

    Hi The Linux implementation of pgp, the GnuPG looks into the folder ~/.gnupg for the keys to encrypt or decrypt. Since the program i'm running to...

    Started by gjwilson, 09-18-2007
    • Replies: 0
    • Views: 942
    09-18-2007 Go to last post
  8. Apache2 + Php4 Security Problem

    Hi My Friends; Someone is adding html and php pages in my virtualhosts with using www-data user. How can i solve this security problem ? OS :...

    Started by muex, 09-14-2007
    • Replies: 0
    • Views: 735
    09-14-2007 Go to last post
  9. chmod 777

    I thought I made a Clean Linux Installation. So I did a find / -perm 777 and I found out that chmod has 777 rights.. Isnt that VERY dangerous?...

    Started by RobinVossen, 09-11-2007
    • Replies: 7
    • Views: 5,486
    09-14-2007 Go to last post
  10. strange root@(ip address) found

    While doing the commands from this post, I found this within the output... root@ A whois returns this... OrgName: Global Net...

    Started by Dapper Dan, 09-12-2007
    • Replies: 5
    • Views: 2,953
    09-12-2007 Go to last post
  11. Final Year Project Ideas???

    I am a 4th year CS student looking for help with project ideas.I am interested in Linux Security(Cryptography,ip tables,OpenSSH,network seecurity,...

    Started by nengo, 09-10-2007
    • Replies: 3
    • Views: 9,243
    09-11-2007 Go to last post
  12. Processes that should belong to Root

    I apologize if this has been asked before but a search didn't come up with anything related to my question. I was reading a book on Linux...

    Started by Zener`, 09-07-2007
    • Replies: 7
    • Views: 826
    09-09-2007 Go to last post
  13. Root account with no password.

    Hello, I'd like to do something that is opposite to this forum's name: I'd like to login as root without the need to specify the password. How do I...

    Started by kyku, 09-07-2007
    • Replies: 6
    • Views: 1,396
    09-08-2007 Go to last post
  14. What is ?}

    Hi I'm concerned by some readouts I'm seeing. I'm using ps , and webmin, and they are showing some processs running, ?} which I do not...

    Started by calhoun, 09-03-2007
    • Replies: 5
    • Views: 1,445
    09-04-2007 Go to last post
  15. Linux Software router

    Hi all, I am doing some call admission control work and want to make a basic router using a linux machine. I had it working last year but am...

    Started by richgood2005, 08-31-2007
    • Replies: 2
    • Views: 1,792
    08-31-2007 Go to last post
  16. Error in default mask ACL

    Hi, friends. I'm having trouble setting ACL in a shared folder. If I do this: #setfacl -m d:u::rwx,d:g:share:rwx,d:o:r,d:m:rwx dir the...

    Started by GlaucoH, 08-07-2007
    • Replies: 1
    • Views: 1,089
    08-30-2007 Go to last post
  17. Need help 'hiding my electronic identity' =)

    I ran across this site earlier today when looking to measure my bandwidth. I gave the other apps a whirl and came across some scary results. I...

    Started by ImNeat, 08-29-2007
    • Replies: 2
    • Views: 781
    08-29-2007 Go to last post
  18. Smile learn more about iptables

    Dear All, I am really interested in learn Linux Iptables firewall. When I am doing my configurations I always use iptables firewall rules for get...

    Started by all2dark, 08-28-2007
    • Replies: 1
    • Views: 894
    08-28-2007 Go to last post
  19. About iptables rules

    Hi folks, Ubuntu 7.04 lamp server amd64 - Host OS VMware Guest OS - not yet installed. Iptables-1.3.6 $ cat /etc/network/interfaces

    Started by satimis, 08-24-2007
    • Replies: 8
    • Views: 8,656
    08-26-2007 Go to last post
  20. host.deny and host.allow not found

    Hi folks, Ubuntu 7.04 lamp server amd64 The files host.deny and host.allow can't be found. $ sudo find / -name hosts.deny $ sudo find /...

    Started by satimis, 08-24-2007
    • Replies: 1
    • Views: 3,111
    08-25-2007 Go to last post

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