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Category: Research

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Windows 10 DNS Problems

This week I came accross a strange problem in Windows 10, and since I’m likly to have the same problem in future I thought it worth to record what happened – and how I...

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Rsync Bandwidth Limit

How do I stop Rsync using all my bandwidth? If you use rsync to move large or just a large number of files from one machine to another, ether over the internet or your...

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Samba Full Audit Trail

This is a new one. I was asked today by someone to explain why files were missing from the Samba file server. Sadly in the end I wasn’t able to find out why simple...

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Acer Aspire CMOS battery

I have searched online for an archive of this post but to no avail. In the end I found this YouTube video by Ultimate Handyman in which he has done a far better job of showing how to replace the CMOS battery in the Acer laptop than I ever did.

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The Dangers of Open Spots

All over the web you will see people telling you the internet is an unsafe place to be, but the biggest danger doesn’t come from some one sitting at home intercepting your connection to...

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Raspberry Pi Yearly Running Cost

I don’t know about you but I run a number or Raspberry Pi’s in my house all doing different jobs. I’ve often heard it said how inexpensive a Pi is to run but I...

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Overclocking RaspberryPi

By default the processor in the Raspberry Pi runs at 700MHz, but it can be overclocked without voiding your warranty. Basically a processor is designed to do one job at time, be it retrieving...

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TrueCrypt

TrueCrypt is dead, long live TrueCrypt. In a move that shocked everyone on the internet TrueCrypt was taken down on May 28th 2014 and the official TrueCrypt website, truecrypt.org, began redirecting users to a...

Revert to a previous Git commit 0

Revert to a previous Git commit

Preamble I make heavy use of git for all my software development, when asked what the point is for a one man development team to something as powerful as git I always reply “universal...

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OpenPGP: How I Sign Keys

Signing is a very personal thing. You are telling the world you believe a key belongs to the person who is claiming it. The value of a web of trust comes from the fact...

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OpenPGP: My Keys

Its May again and the sun has finally made an appearance. With summer comes the regular spring clearing and it seems as good a time as any to update my public encryption keys. My...

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OpenPGP: How does PGP work?

How does it work The magic, and I call it magic because I freely admit I do not have the mathematical background to explain it better, of this system is that if you encrypt...

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OpenPGP: How do I create a OpenPGP Key?

Creating a Secured Key When you build a PGP key you going to start using that key to verify your identity, so like all other forms of identification you have to protect it. Unfortunately...

DNS Cache TTL – Windows 0

DNS Cache TTL – Windows

Shorten the built in Windows DNS cache time To force Windows to keep positive entries in DNS Cache for only 4 hours instead of the default 24 hours we need to apply the following...

Block Negative DNS Entries – Windows 0

Block Negative DNS Entries – Windows

Windows contains a client-side Domain Name System (DNS) cache. The client-side DNS caching feature may cache results when no valid IP address was found. This article describes how to disable DNS caching for these...

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OpenPGP: GPG Cheat Sheet

You can’t have enough cheat sheets on the net. Well you probably can, but I still wanted to add my own to the mix. I use the GnuPG command line for almost everything, bar...

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Setup your own Firefox Sync Server

As most people know I hate using someone else’s service when I can host my own and since I’ve started using Firefox for Android that’s no exception. Firefox allows you to sync your preferences,...

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Non-Root Ubuntu Shutdown

It may at first seem rather daft that you must become root before you can shutdown you PC, but it does make sense. Linux is designed as a multi-user system, just think of any...