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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 linuxforums.org 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: 44,763
    techieMoe
    01-11-2010 Go to last post
    2.  

  1. Lightbulb Modify UNLINK system call so that it is a WIPE and then UNLINK?

    Hello all! Closed source applications used on our server use the unlink system call to delete files. My goal is to make it so unlink system...

    Started by s1sw, 04-28-2011
    • Replies: 4
    • Views: 1,282
    popandopolo
    06-13-2011 Go to last post

  2. Giving console permissions

    Hi, I wanted to know if there is a way to give console permissions? What I need this for is: I have a script that I start as root that would...

    Started by jreptak, 06-10-2011
    • Replies: 4
    • Views: 663
    jreptak
    06-10-2011 Go to last post

  3. Question Newbie question about user bin,daemon, etc

    Hi everyone! I have a newbie doubt, checking the /etc/passwd file from my server (SuSE 10 SP1), there are various system users like bin, daaemon,...

    Started by keita_mog, 06-09-2011
    • Replies: 1
    • Views: 993
    atreyu
    06-09-2011 Go to last post

  4. shorewwall forwad public vip to private vip on same box

    hi, I am having problems forwarding from public vip to private vip and back configuration files interfaces ...

    Started by shorif2000, 06-08-2011
    • Replies: 0
    • Views: 955
    shorif2000
    06-08-2011 Go to last post

  5. Ssh and SFTP access control

    Dear All, I have allowed remote user to log into the server via these two (SSH and SFTP) method. The problem now I have read on the net...

    Started by newbie14, 05-31-2011
    2 Pages •
    1 2
    • Replies: 12
    • Views: 7,716
    newbie14
    06-06-2011 Go to last post

  6. Post Configuring firewall pci dss

    Following are security policies for PCI DSS - FTP services are not allowed from External zone to PCI zone. TFTP services are not allowed from...

    Started by gattaca, 06-04-2011
    • Replies: 0
    • Views: 1,128
    gattaca
    06-04-2011 Go to last post

  7. SOB...concerned I've been breached

    Hi All, I'm concerned my security has been breached but I don't know how to check it. I noticed at least yesterday (could have been before) that...

    Started by jmadero, 04-12-2011
    3 Pages •
    1 2 3
    • Replies: 29
    • Views: 1,769
    hans51
    06-04-2011 Go to last post

  8. Port monitoring or real time netstat

    The Setup: I have a CentOS server I just inherited and we don't have adequate documentation for how it was configured. The problem: My security...

    Started by lostowl, 04-27-2011
    • Replies: 1
    • Views: 1,745
    hans51
    06-02-2011 Go to last post

  9. fail2ban and vsftp

    Hi, I've setup fail2ban to try and block some ftp login failures. I've changed the fail slightly to: enabled = true filter = vsftpd

    Started by adrianmarsh, 03-30-2011
    • Replies: 1
    • Views: 2,465
    hans51
    05-25-2011 Go to last post

  10. DDoS Flood IPtables Rules/Script

    I've looked through this site as well as many others. I know little to nothing about Linux and I put Ubuntu on my server computer because we kept...

    Started by Adeya, 05-18-2011
    • Replies: 1
    • Views: 1,817
    Lazydog
    05-18-2011 Go to last post

  11. Random logins from an unknown server?

    Im getting a few random on my server logins and it looks like they have messed with a few things and to say the least im not very happy. Rather then...

    Started by georanson, 05-12-2011
    • Replies: 5
    • Views: 953
    unspawn
    05-15-2011 Go to last post

  12. Question how to cross compile firestarter firewall

    Hi, I am a new bee in linux security ,I want cross compile the firestarter firewall for montavista linux power pc ,I have downloaded the...

    Started by deepmala8, 05-10-2011
    • Replies: 2
    • Views: 1,014
    deepmala8
    05-12-2011 Go to last post

  13. [SOLVED] Shorewall Problem NAT

    Hello Linux Community :) I am trying to use a PC as Gateway/Router. I installed Debian Sqeeze and Shorewall and configured all. This is a Testing...

    Started by mrd23, 05-06-2011
    4 Attachment(s)
    • Replies: 0
    • Views: 1,040
    mrd23
    05-06-2011 Go to last post

  14. sftp on OpenSSH - change date modified, second is missing

    Hi, how to get the built-in sftp on openssh to set the date modified of uploaded file properly? I use FileZilla client and saw the log file uses...

    Started by callmelann, 05-03-2011
    • Replies: 2
    • Views: 1,223
    callmelann
    05-05-2011 Go to last post

  15. Phishing...help...

    Hello, I have been experiencing phishing attack for few days on my server(Cent0S), the subdomains created by itself and I found...

    Started by smaj84, 05-01-2011
    • Replies: 1
    • Views: 431
    unspawn
    05-04-2011 Go to last post

  16. My computer was compromised. How?

    I would like some advice on how to find out how someone accessed my Fedora 14 machine a couple of days ago. Someone used VNC to run some commands,...

    Started by Hammer842, 04-29-2011
    • Replies: 2
    • Views: 793
    Hammer842
    04-29-2011 Go to last post

  17. Openswan mutli profile problem

    Hi all, I am having an issue with Openswan on a Debian server. Many tunnels have been working for a while on it. Few days ago, I added a new...

    Started by duedos, 04-28-2011
    • Replies: 0
    • Views: 388
    duedos
    04-28-2011 Go to last post

  18. Post SELinux Project

    Hi everybody, I would like to secure my site and I want to implement CAS for SSO, SELinux for the permission into my server and CODA, the last...

    Started by majepiga, 04-20-2011
    • Replies: 2
    • Views: 550
    majepiga
    04-21-2011 Go to last post

  19. cryptographic engine support on Linux

    Dear All, Can anybody throw some light on the following things? I would like to know if provisions for cryptographic algorithms, especially...

    Started by ninja123, 01-18-2011
    • Replies: 2
    • Views: 656
    GameFrame
    04-20-2011 Go to last post

  20. Kernel Fingerprinting

    Hi All, I recently had a serious break-in on a mailserver I administer. The system had to be wiped and re-installed from scratch. On...

    Started by prsjm3qf, 04-09-2011
    • Replies: 6
    • Views: 653
    Rubberman
    04-17-2011 Go to last post
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