Top 10 Free Windows 7 Applications

  • 7-Zip file archiver – a polished, quickly, and efficient file archiver. Supports the following formats, 7z, ZIP, GZIP, BZIP2, TAR, RAR, CAB, ISO, ARJ, LZH, CHM, MSI, WIM, Z, CPIO, RPM, DEB and NSIS.
  • Infra Recorder – User-friendly and lean recorder suite for CD / DVD / HD DVD / Blu-ray. Supports also creation of music CDs from MP3 files directly.
  • VLC Player – The best and most user-friendly film and video player. Simply a must have.
  • Launchy – A so called key-stroke launcher. Makes it smart and easy to start programs in Windows just like Quicksilver does it for Mac and Gnome Do for Gnome under Linux.
  • Paint.NET – Good, polished, and fast photo processing and editing program. Smarter and more user friendly than Adobe Photoshop ;-)
  • PDFCreator – Easy and quick program to create PDF files. PDFCreator easily creates PDFs from any Windows program. Use it like a printer in Wor d, StarCalc or any other Windows application.
  • Notepad++ – Wonderful and quick editor for text and various programming languages.
  • uTorrent – BitTorrent client used to download movies, software and music albums from the peer to peer net. The stuff for download can often be found on thepiratebay.org or torrentz.com.

  • Firefox – Quick and easy to use browser. A Must have on Windows 7.
  • Picasa – Easy and simple program for managing and storing photos and photo albums.
  • iTunes – super duper program managing music collections, it can handle tons of mp3 files ;-)
  • VirtualBox – easy and fast virtual machine that can be used to test Linux distributions, and to install windows inside another windows ;) – Fancy, fancy and quite usable.
  • OpenOffice – complete office suite containing; Word processing, Spreadsheets, Presentation editor, Drawing, Database programs and etc. A must have, and it works better than Microsoft Office.
  • Inkscape – Drawing program for drawing vector drawings (logos and such things).
  • Scribus – Polished, user-friendly DTP program, used to create brochures, catalogs, reports, articles, etc.

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Comments

View x509 certificate details

OpenSSL is quite a complex application, however it is quite easy to get it to show you details or a given x509 SSL certificate using this command:


$ openssl x509 -in filename.crt -noout -text

Where filename corresponds to the X.509 certificate file, which typically would end in .crt, .cert or .pem.

Related posts:

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Comments

SSL: Verifying that a Certificate matches a Private Key

The private key contains a series of numbers. Two of those numbers form the “public key”, the others are part of your “private key”. The “public key” bits are also embedded in your Certificate (we get them from your CSR). To check that the public key in your cert matches the public portion of your private key, you need to view the cert and the key and compare the numbers.

Normally it requires some manual number matching to match a given private key with a given certificate, however with this command you are able to do a comparison automatic:


$ (openssl x509 -noout -modulus -in server.pem | openssl md5 ;\
openssl rsa -noout -modulus -in server.key | openssl md5) | uniq

(If more than one hash is displayed, they don’t match)

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  3. Howto: Convert an OpenSSL key to a public/private OpenSSH key-pair
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Comments

Howto: Convert an OpenSSL key to a public/private OpenSSH key-pair

This howto demonstrates how to convert an OpenSSL key to a public/private OpenSSH key-pair.

The motivation for converting this is simple — dual use. That is to say, any user or application that has been issued a certificate can now use their SSL-based credentials for both SSL- and SSH-based authentication.

Requirements
You’ll need a valid certificate and private key — actually only the key is required. This recipe assumes that your certificate and key will have the names user-crt.pem and user-key.pem, respectively. If your key is encrypted (which it should be), you’ll also need to have it’s passphrase handy.

You’ll need a shell account on a system that supports OpenSSH logins using public/private key authentication.

Solution
The solution is to extract the public key from the private key using ssh-keygen, copy the new key-pair into place, and test them out.

1. Copy the private SSL key to ~/.ssh/id_ssl.
$ cp user-key.pem ~/.ssh/id_ssl
$ chmod 600 ~/.ssh/id_ssl

2. Extract the public SSH key using ssh-keygen.
$ ssh-keygen -y -f ~/.ssh/id_ssl > ~/.ssh/id_ssl.pub
$ chmod 600 ~/.ssh/id_ssl.pub

3. Add the public key to your authorized_keys
$ cat ~/.ssh/id_ssl.pub >> ~/.ssh/authorized_keys

4. Test the new key by attempting to SSH to localhost.
$ ssh -i ~/.ssh/id_ssl localhost

At this point, you’ll need to enter your passphrase (assuming you had one), and if all goes well, you’ll be sitting at a new shell prompt.

5. Remove the test key from your authorized_keys file.

In theory, a single certificate and key issued to an employee would be sufficient to access all participating SSL- and SSH-based resources in a given environment (or perhaps the entire company).

This post is based on an original recipe by Klayton Monroe.

Related posts:

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Comments (1)

Howto: Resize Xen Loop Disk Image

Win4lin, KVM, QEMU, Virtualbox and Xen are all widely used technologies, used in virtual servers. Fairly often a virtual server run from within a loop filesystem and generally start with a fairly small file (1GB is big for a normal file, but not when it is pretending to be an entire filesystem!)

However things often grow over time.

Here is a nice simple procedure for increasing the size of a loop filesystem, if the filesystem is ext2 or ext3 (the procedure should work for ext4 too, but I havn’t tested it yet)

1. Stop the virtual server that is using the loop filesystem
2. Add some extra space to your loop filesystem file
# dd if=/dev/zero bs=1024k count=1024 >> loop_image_file

This adds 1GB to the end of a file called loop_image_file (make sure to use the append output redirector >> not a single >, otherwise you’ll have an empty 1GB file!)

3. Force a check on the resized/increased filesystem
# e2fsck -f loop_image_file

4. Resize the filesystem within the loop filesystem file
# resize2fs loop_image_file

5. Start the virtual server again

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Comments (7)

Er OpenOffice et realistisk alternativ til Microsofts Office-pakke?

Comments

Microsoft Windows collapsing under its own weight; Radical change needed

Microsoft Windows is collapsing under its own weight and radical changes are needed to change that according to Gartner.

Microsoft’s Windows juggernaut is collapsing as it tries to support 20 years of applications and becomes more complicated by the minute. Meanwhile, Windows has outgrown hardware and customers are pondering skipping Vista to wait for Windows 7. If Windows is going to remain relevant it will need radical changes.

That sobering outlook comes courtesy of Gartner analysts Michael Silver and Neil MacDonald. Half of a full room of IT managers and executives raised their hands when asked whether Microsoft needed to radically change its approach to Windows. “Windows is too monolithic,” says Silver.

News Stories on the issue
Windows collapsing under its own weight; Radical change needed
Gartner: Windows heavyweight champ, but no longer nimble
Well, Well – Finally somebody shed light on this issue.

Could he same thing be said about the recently ISO-approved standard OOXML, since it is very bloated too – especially compared to OpenDocument (odf).

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Comments (1)

ISO captured by vendor Microsoft?

Brussels, 2 April 2008 — ISO members failed to disapprove the Open XML format. Microsoft has compromised the International Standards Organisation (ISO) during the rush to get a stamp for their Office OpenXML (OOXML), using unfair practices such as committee stuffing in several countries and political interventions of ministers in the standardization process.

Read more on noooxml.org.

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