Lightweight Portable Security (LPS)-A Linux distro from the US Department of Defense

Lightweight Portable Security (LPS), created by USA’s Department of Defence, is a small Linux live CD focusing on privacy and security, for  this reason, it boots from a CD and executes from RAM, providing a web browser, a file manager and some interesing tools. LPS-Public turns an untrusted system into a trusted network client.

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As i said before, the Lightweight Portable Security distribution was created by the Software Protection Initiative under the direction of the Air Force Research Laboratory and the US Department Of Defense. The idea behind it is that government workers can use a CDROM or USB stick to boot into a tamper proof, pristine desktop when using insecure computers such as those available in hotels or a worker’s own home. The environment that it offers should be largely resistant to Internet-borne security threats such as viruses and spyware, particularly when launched from read-only media such as a CDROM. The LPS system does not mount the hard drive of the host machine, so no trace of work activity can be written to the local computer.(1)


A new maintenance release was announced earlier this week and is accessible via the web. Changes: fixed a problem with iMac Radeon video drivers; fixed problem with trackpad not working on older MacBooks; Rdesktop – enabled compression to improve performance, fixed problem with cursor control keys not working properly; updated NVIDIA display driver to version 275.09.07; added UVC USB web camera support; added minicom 2.4 as a serial port terminal emulator under the Communications menu; updated Firefox to 3.6.19; updated DOD Configuration add-on to 1.3.1; updated Gmail S/MIME add-on to 0.5.2; updated Flash to”

Download the LPS-Public ISO image, version 1.2.2 (16 July 2011)

Download LPS from this link if the above is not working.

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Usefull Links:

(1) Linux Journal

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  • M Lammi

    This is a great effort, been working with Unix for years, security is number 1 with me..

  • http://enteryoursiteURL... Jack

    That’s great. And it’s hilarious that they’ve made it look SO MUCH like Windows 98. I honestly don’t see why they can’t keep that layout but use a bit nicer theme, but hey, to each government agency their own.

  • fengqi

    so beautiful xp theme

  • Stefan


    If you look to the left of the "start" button, the terminal launcher has a "C" on it.

  • Stefan


    If you look to the left of the "start" button, the terminal launcher has a "C" on it.[/quote]And by left, I mean right.

  • Helmut

    Sorry, but I simply won’t trust anything with a US government logo on it. Not even Linux.

  • Liam

    Is it me or is that link dead?

  • brent

    that link is dead you cannot download it

  • Liam

    actually they just have super slow server me thinks!

  • Zinovsky

    The link is ok, i think that their server is overloaded, i have a copy in my computer, i will create a new download link shortly.

  • http://enteryoursiteURL... Ron

    I will mirror the ISO in my dropbox once I get it. Please post the link…..

  • Zinovsky


  • Morton Pasco

    I cannot connect to the download link. I tried entering the link manually and still could not connect.

    Where can I get this valuable application?

  • http://enteryoursiteURL... Ron

    Please post the link to the ISO so I can download and mirror it. Thanks.

  • Zinovsky

    I added a new download link to the post

  • http://enteryoursiteURL... Ron

    If you like the Windows 7 or XP look, checkout Zorin Core 4 OS, which offers both. YLMF (based on Linux Mint > Ubuntu > Debian lineage) looks like XP.

  • Ma Diga

    Thanks for this. I wasn’t aware of this distro, although it does make sense to have such for security reasons.

    Always comes helpful when you’re on the road or trouble shooting a server.

  • http://enteryoursiteURL... Bob

    Excellent information. I can’t wait to try out LPS Distro.

  • Brandon

    Am I behind the times? Why do I have no idea how to make a USB stick boot with an .iso image?

    Is there a little program that asks… Where is your USB stick? Where is your ISO image? VOILA! you now have a bootable USB stick with the ISO image on it.

  • Brandon

    What I meant to say in that last statement is…

    Can anyone help me learn to make my USB stick boot the LPS image?

  • Bill Dwyer

    For those interested V 1.2.3 was released this past week if you want to update. As to a USB Stick, the only thing I have heard of is Unetbooten or follow directions on LPS site. I don’t have any machine that boots from USB. I haven’t heard of any "simple" program to do it. That’s something someone could work on!

  • Brandon

    Unetbootin worked like a charm. 3 or 4 clicks and the USB stick was ready. In fact I tried the LPS method after that and it did not work. Now I am a fan and using Unetbootin to try some other distros.

  • and

    ha ha ha
    firefox has problems with ssl

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  • m. zinoune aka anuradh shukla

    the author of this post was m. zinoune, but now it has become anuradh shukla. which one is correct? if you want to maintain your credibility, don’t change your name, bruv..

  • M. Zinoune

    Corrected thanks. As you can see we just migrated the website to a new platform with a new design,  during the migration and due to a bug many posts got authors name mixed, actually we are still working on correcting this. Thanks again for noticing us.
    M. Zinoune

  • jeremykemper111

    Last people on earth I would trust is department of defense.

  • congressive

    By using this, or any secretive system, you are shouting to the feds that you have something to hide. Ask General Petraeus just how secure ANYTHING is online.