Tag Archive: open source software

Mar 26 2013

using an ssh reverse tunnel to bypass NAT firewalls

There is usually more than one way to solve a problem. Back in October last year I wrote about using OpenVPN to bypass NAT firewalls when access to the firewall configuration was not available. I have also written about using ssh to tunnel out to a tor proxy. What I haven’t previously commented on is …

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Dec 11 2012

moonlighting in parliament

Yesterday I followed a link from Duncan Campbell’s Reg article on the joint parliamentary committee’s scrutiny of the Communications Data Bill referred to in my post below. That link took me to the UK Parliamentary website which I confess I haven’t visited in a while. I was initially irritated that the video format used on …

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Oct 27 2012

using openvpn to bypass NAT firewalls

openvpn-scenario

OpenVPN is a free, open source, general purpose VPN tool which allows users to build secure tunnels through insecure networks such as the internet. It is the ideal solution to a wide range of secure tunnelling requirements, but it is not always immediately obvious how it should be deployed in some circumstances. Recently, a correspondent …

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Aug 21 2012

debian on a DNS-320

DNS-320-3

Back in 2009 I bought, on impulse, a D-Link DNS-313 thinking it was sufficiently similar to the 323 to enable me to install debian with some ease. As I noted at the time, however, I’d made a slight mistake and then had to settle for a compromise installation from a tarball rather than a full …

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Jul 20 2012

gpg key upgrade

Following a recent discussion about gpg key signing on my local linux user group email list, one of the members pointed out that several of us (myself included) were using rather old 1024-bit DSA GPG keys with SHA-1 hashes. He recommended that such users should upgrade to keys with a minimum size of 2048 bits …

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Apr 16 2012

rockbox rocks

sansa-clip+

Some time ago my wife bought me a Sansa Sandisk Clip+ music player. When she asked me “what kind of MP3 player” I would like, I specifically specified the Clip+ because it could handle ogg vorbis encoded audio files. All my audio disks are encoded in this format. Picky I know, but there you go. …

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Feb 20 2012

HMG goes cloudy

The UK Cabinet Office has announced the winning bidders to supply IT goods and services to UK Government under its new framework contract called “G-Cloud”. The winners are listed on a new website called the CloudStore which, supposedly, allows HMG procurement specialists to search for the goods and services they want to purchase. The new …

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Nov 06 2011

fully minted

image of linux desktop

After exploring the alternatives to Ubuntu, I finally settled on Linux Mint Debian Edition (LMDE) running Xfce as the desktop. I am now Ubuntu free and have a desktop that looks the way /I/ want it to look rather than the way some design nut wants it to look. I am also hopeful that the …

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Oct 19 2011

time to ditch ubuntu?

I’ve used Ubuntu on my desktops/laptops and netbook for some time now. I think my first installation was 6.06 (the version 6.04 which was late by two months) and my desktops currently all run 10.04 LTS. I got over the minor irritation of the move of the window control buttons from the top right to …

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Jul 02 2011

one reason I don’t use apple

update_for_your_computer

Being a linux and FLOSS fan has its advantages, not least the fact that most, if not all of the software I would want to use (and indeed, /all/ of the software that I actually do use) is free as in beer as well as free as in speech. And given the much smaller target …

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Sep 12 2010

a graphical web of trust

I recently stumbled upon sig2dot, a gpg/pgp keyring graph generator. In fact this seems to have been around for some time, but I’d never come across it before. It can be used to generate a graph of all of the signature relationships in a GPG/PGP keyring, and, like other visualisation tools, this graphical image producing …

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May 03 2010

email address images

no-such-email

Adding valid email addresses to web sites is almost always a bad idea these days. Automated ‘bots routinely scan web servers and harvest email addresses for sale to spammers and scammers. And in some cases, email addresses harvested from commercial web sites can be used in targetted social engineering attacks. So, posting your email address …

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