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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: 52,808
    01-11-2010 Go to last post
  1. [SOLVED] Securely delete files?

    What would a good program be for securely deleting large amounts of files? I understand I can use shred for individual files or directories, but is...

    Started by TTIO, 03-02-2011
    • Replies: 5
    • Views: 2,263
    03-03-2011 Go to last post
  2. bad blackslash usage openvpn

    helo I am receiving this message on my vpn gui Options warning: Bad backslash ('\') usage in client.ovpn:1: remember that backslashes are...

    Started by pinguim007, 12-10-2010
    • Replies: 1
    • Views: 2,024
    02-27-2011 Go to last post
  3. autoenrollment of SSL certificates for Linux desktops

    Hello, we are searching solution for autoenrollment of user SSL certificates to linux desktops joined to Windows domain. We prefer solution, which...

    Started by linuxak, 02-24-2011
    • Replies: 0
    • Views: 1,721
    02-24-2011 Go to last post
  4. Unable to connect to ssh server

    Hi, I am having issues connecting to a remote host via ssh and I suspect that this is due to some security restrictions on their side. I can't be...

    Started by pberger, 02-19-2011
    • Replies: 5
    • Views: 4,513
    02-21-2011 Go to last post
  5. Forbid >2 login from the same IP

    Hello all, I've a server with a common login (with "common" I mean several users use the same login). What I want to forbid is a "second" login...

    Started by gpayo, 02-16-2011
    • Replies: 1
    • Views: 715
    02-17-2011 Go to last post
  6. PGP signed email

    Hi all, I want to sign my email with an PGP signature. I've generated a DSA signature and included it into my Kmail setup. When I send an email...

    Started by Keessince1988, 02-02-2011
    • Replies: 3
    • Views: 1,785
    02-15-2011 Go to last post
  7. Special rule for shorewall maclist

    Dear all, im looking for a special shorewall rule. I need a maclist filter to allow registrated hosts to use the internet. Unknown hosts should...

    Started by sef01, 02-14-2011
    • Replies: 0
    • Views: 1,177
    02-14-2011 Go to last post
  8. [Debian] Shorewall installed, still ports open

    Hello I have installed shorewall onto my debian machine. I`m testing this because i want to use a VPS later but want to test all installations...

    Started by Josvds, 02-11-2011
    • Replies: 1
    • Views: 1,225
    02-13-2011 Go to last post
  9. Is it possible to block an established ftp session?

    We are setting up port forwarding in our linux box, and changed the listening server from port 21 to 4123. Enabled port forwarding: ACCEPT ...

    Started by etb717, 02-09-2011
    • Replies: 1
    • Views: 961
    02-09-2011 Go to last post
  10. OpenSSH sftp login using RSA/DSA keys

    Hello guys I'm trying to configure a secure SFTP server on debian. I've succesfuly configured it to allow users to log on only to file service...

    Started by nacek, 02-02-2011
    • Replies: 0
    • Views: 3,202
    02-02-2011 Go to last post
  11. port

    is there any command to check whether internet connection is available at a certain port or not??

    Started by kaushik016, 01-31-2011
    • Replies: 1
    • Views: 538
    02-01-2011 Go to last post
  12. default password !!!!!!

    a big holler out to all da linux experts .... am facing a lil issue here with UBUNTU 10.10 i jus managed to install it ,, nd i only set...

    Started by mackubex, 01-29-2011
    • Replies: 8
    • Views: 1,741
    02-01-2011 Go to last post
  13. BitTorrent - problem?

    I know that sites that uses BitTorrent are not entirely trustworthy, but is there any problem in Linux, as I'm thinking of downloading something...

    Started by TheStig95, 01-27-2011
    • Replies: 2
    • Views: 719
    01-28-2011 Go to last post
  14. DOS attack and IRC Server install

    Hi, I have a server with 1and1 - I've had notifications from them that my server has been attacked and is currently infected: These are the...

    Started by wmguk, 01-28-2011
    • Replies: 1
    • Views: 3,020
    01-28-2011 Go to last post
  15. Squid Installation Problem

    Hello all, recently upon installing Squid I am pretty sure the install went fine until i get this whenever i try to do something: FATAL: Unable to...

    Started by dirtydog7655, 01-25-2011
    • Replies: 1
    • Views: 4,282
    01-26-2011 Go to last post
  16. Pts

    Can someone tell me what "pts" means in konsole?:)

    Started by timepilot, 01-18-2011
    • Replies: 4
    • Views: 736
    01-25-2011 Go to last post
  17. linux hardening

    Hi, Which is the best remote linux hardening GUI tool.Is it posible to use that tool from windows system ? Thanks

    Started by rajeshku, 01-20-2011
    • Replies: 4
    • Views: 964
    01-25-2011 Go to last post
  18. Dynamic security context by PID

    I'm a newbie, and I have a question about whether or not a security context can be dynamically applied to a PID. Here's an example, I have a master...

    Started by dch, 01-21-2011
    • Replies: 0
    • Views: 720
    01-21-2011 Go to last post
  19. sshd attack?

    Hello. I'm new to these forums, but have been using linux for several month, lately I have been having issues where sshd loads many processes, all...

    Started by MrLeft, 01-15-2011
    • Replies: 2
    • Views: 8,830
    01-15-2011 Go to last post
  20. DOS Attacks from my Server as a source

    Hi all, today i got a message from my provider saying my server was disconnected from the network because my server is sending DOS attacks. ...

    Started by Defjam, 01-07-2011
    • Replies: 4
    • Views: 3,706
    01-12-2011 Go to last post

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