Posts tagged Linux

Steam Play

I have been using a Linux Desktop machine as my primary computer for many years now. The applications I use day to day are mostly open source and run natively on Linux or through WINE.

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HDMI Monitor Problem & Fix

The recent warm weather had made using my 3 monitor configuration a little uncomfortable. To make things a little more bearable I decided to turn off two of the monitors to reduce the amount of heat output into the room. I disabled the monitors using the display settings in Gnome 3.28. All was working well.

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Stable System?

I think I can finally say I have a stable system once again. After the Ryzen RMA replacement of my Ryzen CPU to fix the “Performance Marginality Problem” I noticed that I was still getting some regular system lockups/freezes when it was left idle.

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Ryzen PC Backup

I finally decided to perform a backup of my new Ryzen PC running Fedora 26. Normally I wouldn’t leave it too long between backups especially if I have made significant changes. My new PC presented me with a little bit of an issue, I couldn’t run my backup software.

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Fedora 25

This evening I arrived home from work and began to update my machines to the latest version of Fedora. I am pleased to say the update has gone smoothly. This has been the easiest update I think I have had in recent years.

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Fedora 24

This week I have been updating my machines to run Fedora 24. Two out of 3 updated without any issues and continue to run normally. One machine however has decided to cause me some issues.

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Termux - Custom Prompt

Termux is a terminal emulator and Linux environment for Android. I wanted to customise my prompt in the same way that I have done on my desktop/laptop machines. Ordinarily I would have a .bashrc in my home directory where I would make the changes to the prompt (PS1). However Termux doesn’t recognise this.

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New Projects

This month I have started a couple of new projects. It began as one but soon split. The primary project was to make use of a 128x64 I2C OLED display. It has been sitting on the side for a few months after an impulse purchase. It soon became apparent that I needed a way to generate static images for the screen. Although there were programs out there that would convert a bitmap image into the hex code I needed, many were for Windows. So I decided to have a go at converting it myself.

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SSD Research

I had a spot of luck this week when I purchased an early Black Friday deal on Thursday evening. I wasn’t intending to buy anything but I knew when the deals were starting and decided to have a look. I am currently awaiting delivery of an Intel 730 Series 480GB SSD. I had seen this earlier in the year (around March) and it looked a nice drive but too expensive. A 50% price reduction can change my mind.

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Bash Exploit

Well I read this article whilst I was at work. Upon getting home I started up my Fedora machine and ran the following check to see if I was vulnerable.

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Cooling Things Down

Summer is approaching and the weather is getting slowly warmer. This brings with it the annual problem of having a computer in the bedroom kicking out heat and making it too warm. Another issue that had been causing me some bother for a few years is the power settings on my graphics card, a Radeon HD6850, when running Linux. I use the open source radeon driver as keeps improving overtime and has enough of the performance of the closed source official driver for my needs. The one thing that has been lacking in my particular case has been the dynamic adjustment (radeon.dpm) of the card to keep it running cool. I have been forced to manually set the card to a low power state each time I reboot the machine. Failing to do this means the card boots up running full speed and quite happy to warm the place up. The downside is that I am always in the low power state and any tasks that might make use of a bit of extra power never get it unless its specifically enabled.

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Tmux - Solving The Problem Of Window Names

I was lucky enough to get a book on using tmux for Christmas. Following through the examples I noticed that I was not getting the expected behaviour when attempting to set window names.

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Aims for 2014

Time for a look back at what I intended to do last year.

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Fedora 20 - Countdown

Countdown removed.

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Fedora 19 - Initial Impressions

I have just upgraded both my laptop and desktop machines to Fedora 19. Having had a few issues with the past couple of releases this upgrade has been almost flawless. The only issue I have noticed so far is some missing fonts/images for the grub 2 bootloader but everything works otherwise.

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Keeping My Hat On

In my previous post I outlined my thinking about moving from Fedora to OpenSuse. I installed OpenSuse 12.3 onto mylaptop and had a play about. The installer was clean and easy to use and everything was setup with the minimum of effort.

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Going Gecko

Using Linux has always presented me with a lot of choice as to how I want to use it and how it can work for me. I started my Linux journey with Gentoo and stayed with it for many years. But over time I found it didn’t fit with my workflow, it was fun to use and I learnt a lot but it required hands on tweaking.

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Fedora 17 - Sluggish Firefox

The upgrade to Fedora 17 on my main system had gone well with no significant issues aside from one. When trying to start Firefox with multiple tabs loading it would hang locking the browser up. After trying the DNS problem route to upgrade problems etc. I finally traced the problem. The Flash plugin was out of date and the older version was being caught by the system as the log files outline. Upgrading the Flash plugin solved the problem and everything is back to normal.

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My Raspberry Pi Is Almost Here

I have had an email today informing me that my Raspberry Pi has been dispatched. Hopefully it will be in my hands within the week.

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The Beefy Miracle

Fedora 17 is on its way

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Fixed: Fedora 16 Printing

During my upgrade from Fedora 15 to 16 several things broke, this is nothing new there were alot of major graphical components updated. Those issues were resolved in the week following the F16 release. What I had not expected to break was my network printing setup. In all the years I used Gentoo and upgraded over and over I never had many issues and when I did it was usually my fault.

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Fedora 16

Countdown timer removed.

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Goals For July 2011

The June 2011 has resulted in a few tasks backing up due to lack of time, resources, money etc. July will be the month for reorganising and getting back on track.

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Fedora 15 - Initial Thoughts

I took the plunge a few days ago and updated my machines to Fedora 15. The results have been mixed. My netbook and laptop were the first to be upgrades with Intel and Nvidia graphics respectively. Both upgraded fine and the Gnome 3 experience was ok, if a little strange. The problems started with my server with an AMD/ATI graphics. The screen was tearing in places and the smooth experience I was getting on the netbook and laptop had been lost. I still have not fully resolved this problem and it proving difficult to use gnome 3 without it.

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Countdown To Fedora 15

Countdown image removed.

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Windows 7 + CUPS - Problem Solved

I have been trying to get my Windows 7 (Pro) machine to connect to the CUPS printer on my Linux server. Whilst it used to work with Windows XP (Home) via IPP (Internet Printing Protocol) I was having no luck with Windows 7. One reason for the problem is my network security and firewalls. I lock down everything unless it is actually needed. This means that all the auto discovery services on the network can’t talk to each other. Still knowing the IP address and ports of the relevant machine/service to connect to is normally enough to get things working. Not in this case however. For some reason either at the Windows or CUPS end the IP address was causing a problem. The problem being that the it wasn’t being resolved to a machine name when trying to setup the IPP connection.

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Fedora 14 - One Month On

It has been just over a month since I switched my Linux computers from Gentoo to Fedora. I am happy to report that all is going well. There have been a few issues but these are minor annoyances rather than major problems.

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Fedora 14 - Comming Soon

Countdown Image Removed

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OpenSUSE, Fedora, Debian & Gentoo - Experiences

Over the past month I was having a little trouble with Gentoo being difficult to maintain (too many things broke at the same time). I decided to try another distro and after some initial reading decided to try Fedora 13 (64bit). The install on my server went smoothly and I had a working machine in no time. Some minor annoyances however caused me to switch back to Gentoo. The main problem was with Fedora introducing a bug somewhere resulting in my mouse cursor disappearing on resuming from the screen saver. Only a reboot could solve that one. The Fedora forums indicated a problem with my integrated graphics chip but didn’t offer a working solution. Added to this was the problem with Firefox plugins. Fedora seemed to get in the way a little and prevent them from working normally. So my server is back on Gentoo and running fine now.

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Arduino + Ethernet Shield + Linux 64 Bit = Headache

I have been trying for the past few hours to get the simple web server sketch working with an arduino board and my recently acquired ethernet shield. All seemed to be going well the sketches were uploading to the board and I was able to ping the ip address over the network. Why then could I not connect to the device to see the generated output? Much time has been spent looking at different libraries and other peoples sketches looking for alternative ways of doing the same thing. Each time my sketch would stall whilst trying to read the client data. A single line of code which for some reason would stall the program execution.

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The Rodent Confusion

For the past few weeks I have been having some performance glitches with the way my mouse interacts with my Linux machine. The mouse would move and the buttons operate normally except for when trying to press and hold the left button for example. The action would appear to terminate after a few seconds and reinitialise. This behaviour was making it impossible to move windowed applications around the desktop. Today however I have solved the problem, which is good from the point of view that it solves the issue and also it means I don’t have to spend the next 48hrs recompiling Gentoo and all my applications.

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Mailserver Project - October Update

The mailserver project which I have been working on for many months now is getting to the point where it will soon be taking over the role of hosting all my email. No problems have been discovered over the past month and my upgrade script to regenerate the security certificates worked perfectly. A recent update to Dovecot, the IMAP system, means that a little more testing is in order due to modifications made to the config files.

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Mailserver - Another Stage Completed

Over the past couple of weeks I have been moving the mailserver project closer to being ready for actual use and another milestone has been passed. I have now reached the stage where my hotmail and gmail accounts are collected onto the server and made availiable via IMAP.

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Kernel Upgrade Day

It has been a long time since I last updated the kernels on my linux machines. I had managed to keep the software up to date but the kernel upgrades are always a little more involved. Today is the day that they were all updated, all the software updated and rebuilt. Optimising the kernels is a little more time consuming and it may take another attempt on my main machines to get rid of any extra drivers and features that are not required.

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Quick Mailserver Update

I have at long last done a little more work on the mailserver project. The latest thing to report is the addition of dspam to filter out spam. In addition to this clamAV is also integrated.

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Printing Linux Man Pages

In my efforts to add spam and virus filtering to my mailserver project I needed to have a hardcopy of a man page. Whilst it is possible to forward the output to a file “man [command] > outputfile” or directly to the printer “man [command] | lpr” neither option is perfect. Directing the output to a file leaves extra characters in the output making the text a little unreadable in places. Directing the output directly to the printer uses a font which is over large and a waste of paper.

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Mailserver Project: It Appears To Work

After spending much time and effort on the mailserver project I think I have finally created a secure and working basic setup. It’s currently a little to late to do extensive testing but the brief tests carried out so far look good. A laptop with a self signed ssl certificate can securely connect to the mailserver over the local lan and retrieve the email in the imap store and securely send email out again. Trying to use the mail client on the mailserver itself correctly fails to retrieve the imap store or send email due to not having a self signed certificate to send.

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Mailserver Project: Another Update

I was hoping to begin this month with news that my mailserver project was reaching the milestone objective of being secure and working, alas it is not to be. The good news is that over the past month I have made significant progress and am in the final stages of securing and testing.

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Windows Vista - Still Crap

In the past few weeks I purchased some new Anti-virus and Firewall software from ESET to replace my expiring & bloated AVG install. The first machine to get the upgrade was my XP desktop machine; everything went well. I was impressed with the lighter feel to the software and the added fact that it didn’t seem to be hogging the system resources quite as much. A weeks trial later I decided it was stable and usable enough to be used on my laptop; running Windows Vista. The install was painless and the software scanned my system and there were no obvious issues.

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Mailserver Update

I posted a few weeks (possibly months) ago that I would get my guide to setting up a mailserver onto the site. Unfortunately I ran into a few security realted problems that needed to resolved. The good news is I have made plenty of notes of the process and it should just be a case of typing them up.

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Another One Bites The Dust

It’s that time again when another peice of my IT equipment has died. When I say died it’s more akin to requiring the replacement of several major organs at the same time. Thurday night I was going about my usual activities of checking email and surfing the web with my windows desktop and 24/7 linux server.

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May & Mailservers

May 2008 has been somewhat uneventful on the traveling front, work has mainly taken my to and from the office (3 miles a day). On the plus side being based at home I have invested some time into trying to setup a mail server. Now setting up a mail server was never going to be an easy task, the fact that I still don’t have a working setup after several weeks of attempts is testament to this.

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Never Blindly Copy Code

I have been developing my own iptables firewall scripts for my Linux machines. On the whole the process has been going quite well. Part of my research into the firewall rules involved buying a few reference books, one of which contained what claimed to be a very secure script. I copied the base rules over to use as a base to add my own rules to and things have progressed very well.

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Azureus Magnet Links For Linux

On a Windows machine with Firefox and Azureus installed magnet links in web pages are already associated with Azureus. In Linux (at least in my experience with Gentoo) this association is missing by default.

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I Hate Windows XP Home

Over the easter weekend I have decided once again to setup my network just the way I like it. Up to this point everything is going well, the Samba shares on the linux machines are at last accessible through the firewall and the Linux machines can access the Windows shares. Now the problems start.

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Foresight Linux 2.0

I’m always on the lookout for new innovations from the Linux community and today I stumbled across something interesting. Foresight Linux is a relatively new distribution but what differentiates it from the competition is the package manager. In other binary distros upgrading an application involves removing the old package in its entirety and dropping the new one in its place. Foresights Conary package manager takes a different approach and only swaps out the bits which have changed. This makes it more efficient as your saving on the amount of downloading you need to do for a new package.

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Gentoo Linux - Toshiba Satellite X200/X205 (part 6)

I have been happily using my notebook without problems since I posted my last update. I was enjoying using it so much I decided to take advantage of the low RAM prices and upgrade from 2GB to 4GB.

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Gentoo Linux - Toshiba Satellite X200/X205 (part 5)

SOUND!!! Yes it is now possible to get the ALC268 hda-intel audio chipset working along with the headphone jack. It has taken a few hours trying to hack a solution together from notes relating to other distros but I finally have something acceptable. I guess you want to know how to do it, instructions now follow.

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Xorg Mouse Configuration

Yesterday I purchased a mouse to use with my notebook; I lead such an eventful life. Ordinarily this wouldn’t be worthy of mention, most mice are plug in and use. My mouse however needs to work with Linux and here in lies the problem. Getting a mouse to talk to Linux is getting easier the left, right and middle buttons usually work as well as the up down scroll. It’s the additional buttons that cause the problems.

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Gentoo Linux - Toshiba Satellite X200/X205 (part 4)

Time for an update on my progress of installing Gentoo Linux on my Toshiba X200-20S. I have been managing to get audio playing out of the integrated speakers, so I assumed it was all working and setup correctly, wrong. When I tried to plug in my headphones the audio continues to be played out of the speakers. The problem appears to be an unsupported codec chip (ALC286). Now the good news is that support for this chip has been integrated into the 2.6.23 series of kernels. The downside is that they have not yet been marked for testing as gentoo-sources. I could try a vanilla kernel but I’d rather have the gentoo tweaks. Once it’s available for testing I shall give it a shot and see if it solves my problems.

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Belkin Switch2 & Linux

The Belkin Switch2 is a range of KVM switches to switch between 2 computers. Some of the range support usb keyboards and mice and include stereo audio switching, it is these particular models which are of interest.

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Gentoo Linux - Toshiba Satellite X200/X205 (part3)

The Frame Buffer/Nvidia/Xorg problem

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Gentoo Linux - Toshiba Satellite X200/X205 (part2)

Kernel Config [gentoo-sources, 2.6.22-gentoo-r5] Still alot of uneeded things in there and probably a few needed things that aren’t. It does boot though and will provide a base from which to expand from.

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Gentoo Linux - Toshiba Satellite X200/X205

I have recently acquired a Toshiba Satellite X200-20S laptop. Whilst it shipped with Windows Vista it was never my intention to run it as the primary OS. The primary OS for this machine will be Gentoo Linux.

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Firewall Script - Improvement

I have improved the previous version of the firewall script to reduce some security flaws.

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Firewall Script

Some recent site upgrades mean its time for some interesting content. I have added my development iptables firewall script. It works at the moment or at least I think it does.

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Can A Person Have Too Many Computers?

I built myself a Gentoo server some time ago now but I have never used it to its full potential. It has certainly been useful as far as learning experiences go but it spends most of its time powered down. My problem would seem to be my attachment to my windows machine. It still runs all the 24/7 services I need and all I do is turn the speakers and monitors off when I don’t need it.

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New Gentoo Guide

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Time For Another Update

It has been many weeks since my last post, as usual I have been busy with many things and often away from net access. So time for a little news. The site has been upgraded to the latest version of WordPress. Given that its taken me less than a week to apply an upgrade isn’t bad for me.

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Home Server Build

The recent release of the Intel Core 2 Duo has resulted in a price war with AMD. The result, falling processor prices on both sides. I’d been monitoring the situation for a couple of weeks and this weekend the prices were right for me.

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WG511T Config with Gentoo

17/10/05 - Matthew Tunstall

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Gentoo On RaverBaby

Things are going well on RaverBaby (My 1GHz AMD machine). I installed Gentoo 1.4 a few weeks back and have been meaning to play with it a little more. Today things moved a bit furthur forward with the installation of Samba. This allows Windows and Linux to talk and share files like good operating systems should.

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