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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: 52,854
    01-11-2010 Go to last post
  1. 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: 2,563
    05-18-2011 Go to last post
  2. 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: 1,184
    05-15-2011 Go to last post
  3. 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: 1,397
    05-12-2011 Go to last post
  4. [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
    • Replies: 0
    • Views: 1,693
    05-06-2011 Go to last post
  5. 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: 2,041
    05-05-2011 Go to last post

    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: 598
    05-05-2011 Go to last post
  7. 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: 1,076
    04-29-2011 Go to last post
  8. 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: 557
    04-28-2011 Go to last post
  9. 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: 728
    04-21-2011 Go to last post
  10. 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: 861
    04-20-2011 Go to last post
  11. 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: 971
    04-17-2011 Go to last post
  12. [SOLVED] My Server making SQL injection requests

    I have been told by my server provider that my IP has been reported as making SQL injection attacks in multiple different websites. I am trying to...

    Started by apot, 04-11-2011
    • Replies: 5
    • Views: 1,197
    04-12-2011 Go to last post
  13. reverse ssh blocked

    Hi Guys, This is my first post at this forum and hopefully the first of many. I am a final year student in college and as part of a project I...

    Started by mentaaal, 04-07-2011
    • Replies: 6
    • Views: 1,233
    04-09-2011 Go to last post
  14. SSH printing workaround

    Hi Everyone, Here's a bit of background which you can skip unless you want to know why I created this workaround: There is a printer on the...

    Started by measure, 04-02-2011
    • Replies: 0
    • Views: 617
    04-02-2011 Go to last post
  15. [SOLVED] Shorewall Help Needed Pls

    hi all there i have configured shorewall using webmin on ubuntu 10.10 with DSL with dynamic IP from ISP. Internet is working fine but Outlook mail...

    Started by mkhurram92, 03-24-2011
    • Replies: 1
    • Views: 1,150
    03-29-2011 Go to last post
  16. Squid-2.7 proxy

    I'm having issues with the squid proxy cutting off dowloaded files. the download will hang and then instantly finish but when you check the file it...

    Started by rmatz19, 03-23-2011
    • Replies: 0
    • Views: 1,362
    03-23-2011 Go to last post
  17. Squid Proxy blocking all sites

    Hello I am moderately familiar with Ubuntu linux and a novice with Squid Proxy. I am trying to setup a squid proxy server to secure my small...

    Started by starpr0j3ctr, 02-24-2011
    • Replies: 1
    • Views: 4,651
    03-18-2011 Go to last post
  18. Web Security

    Hello, how are you? we know that, if we want to make a good web page, we should make a security. I only know about XSS and SQL injection Attacks....

    Started by vakhoQ, 03-17-2011
    • Replies: 0
    • Views: 555
    03-17-2011 Go to last post
  19. How secure is the login password?

    How secure is /etc/shadow really? What kind of hash function does the system use to secure the passwords and how secure is it really? I've read...

    Started by SkyHiRider, 03-13-2011
    3 Pages
    1 2 3
    • Replies: 20
    • Views: 2,244
    03-16-2011 Go to last post
  20. why windows viruses doesnt effect linux?

    hi guys as title says why a virus for windows operating system wont work on ubuntu?or is there a possibility a windows operating virus can...

    Started by johnhagen, 02-19-2011
    • Replies: 7
    • Views: 2,992
    03-13-2011 Go to last post

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