Diigo Bookmarks [Linux] 07/20/2010

• Zabbix :: An Enterprise-Class Open Source Distributed Monitoring Solution

  Server runs on Linux, AIX, BSD, Mac, Solaris Agents run on All the server platforms, Netware and Windows

  tags: network hardware monitoring freeware software linux macintosh windows security

  • Open Source, Distributed Monitoring with nice charts and graphics for management:
    
    ABBIX was created by Alexei Vladishev, alexei.vladishev@zabbix.com).

    ZABBIX is all-in-one 24x7 monitoring solution without high cost.

    ZABBIX is software that monitors numerous parameters of a network and the health and integrity of servers. ZABBIX uses a flexible notification mechanism that allows users to configure e-mail based alerts for virtually any event. This allows a fast reaction to server problems. ZABBIX offers excellent reporting and data visualisation features based on the stored data. This makes ZABBIX ideal for capacity planning.

    ZABBIX supports both polling and trapping. All ZABBIX reports and statistics, as well as configuration parameters are accessed through a web-based front end. A web-based front end ensures that the status of your network and the health of your servers can be assessed from any location. Properly configured, ZABBIX can play an important role in monitoring IT infrastructure. This is equally true for small organisations with a few servers and for large companies with a multitude of servers.

    ZABBIX is free of cost. ZABBIX is written and distributed under the GPL General Public License. It means that its source code is freely distributed and available for the general public. Both free and commercial support is available and provided by ZABBIX Company.

    
    
    - post by steve

Posted from Diigo. The rest of my favorite links are here.

Diigo Bookmarks [Linux] 07/17/2010

• Linux Live USB Creator : Powerful and easy Live USB Creator

  Creates bootable USB disk images from Linux Live CD/DVD versions and writes to USB. Also has a customised (portable) version of Sun's VirtualBox that allows the image to be run inside Windows without the need to install other software.

  tags: portable software windows linux

Posted from Diigo. The rest of my favorite links are here.

Diigo Bookmarks [Linux] 04/21/2010

• apache friends - xampp

  An excellent, free, web development environment. Does not need to be "installed" even under Windows.

  tags: software, freeware, development, web, server, php, perl, windows, linux, mac, sql

Posted from Diigo. The rest of my favorite links are here.

Diigo Bookmarks [Linux] 04/08/2010

• calibre - E-book management

  eBook converter, reader and manager.

  tags: ebooks, windows, linux, mac, freeware, software

Posted from Diigo. The rest of my favorite links are here.

Diigo Bookmarks [Linux] 03/24/2010

• node.js

  "Evented I/O for V8 javascript" "Node's goal is to provide an easy way to build scalable network programs."

  tags: software, freeware, server, javascript, library, web, development, linux, mac, python

• F.lux: software to make your life better

  "f.lux makes your computer screen look like the room you're in, all the time. When the sun sets, it makes your computer look like your indoor lights. In the morning, it makes things look like sunlight again. Tell f.lux what kind of lighting you have, and where you live. Then forget about it. F.lux will do the rest, automatically."

  tags: software, freeware, windows, mac, linux

Posted from Diigo. The rest of my favorite links are here.

Diigo Bookmarks [Linux] 02/04/2010

• Mairix

  Great little command line utility to index and search Maildir, MH or MBOX formatted mail folders. It creates a new mail folder with the results linked back to the mail so works transparently in any mail client that uses one of these formats for mail storage. See: http://rajasuperman.blogspot.com/2007/07/using-mairix-through-procmail.html for an example of using with Procmail and Dreamhost.

  tags: email, utility, linux

Posted from Diigo. The rest of my favorite links are here.

Diigo Bookmarks [Linux] 01/06/2010

• HotCopy (R1Soft) Disk and Volume Snapshot Software

  High performance disk/volume snapshots for any Linux block device (e.g. hard disk). The copy is writeable but is destroyed on reboot. Good for ensuring consistent backups on busy machines, testing potentially destructive scripts, checking what changes a script or installation makes, etc. Currently free (beta), not clear if it will be payware when it comes out of beta.

  tags: linux, software

Posted from Diigo. The rest of my favorite links are here.

Diigo Bookmarks [Linux] 11/23/2009

• Clonezilla

  A partition and disk cloning tools (similar to Ghost but free). Works with MANY file systems.

  tags: freeware, software, windows, linux, macintosh, backup

Posted from Diigo. The rest of my favorite links are here.

Diigo Bookmarks [Linux] 11/21/2009

• IBM enterprise mashups - IBM Mashup Center

  Interesting data agregator server similar to Yahoo! Pipes but runs on IBM Websphere. Pull data from various sources including Excel spreadsheets and republish as RSS feeds & create web UIs.

  tags: web, development, payware, software, windows, linux

Posted from Diigo. The rest of my favorite links are here.

Diigo Bookmarks [Linux] 11/10/2009

• BOUML - a free UML tool box

  "BOUML is a free UML 2 tool box allowing you to specify and generate code in C++, Java, Idl, Php and Python. BOUML runs under Unix/Linux/Solaris, MacOS X(Power PC and Intel) and Windows."

  tags: software, freeware, windows, linux, macintosh, java, development

Posted from Diigo. The rest of my favorite links are here.

Flashing the BIOS from Linux (OpenSUSE 11.0)

I've been a bit quiet here recently because I've mainly been working with my business laptop currently running Windows 7. You can see more about this on my other blog - Much Ado about IT.

However, the power supply on that died recently so I'm back to my trusty desktop which runs OpenSUSE 11.0 24x7.

I managed to get hold of an upgraded CPU for this a while back but I've not really had an incentive to upgrade till now. The new CPU supports hardware virtualisation but I need to enable this in the BIOS. Of course, this machine (based on an ASUS A8N-SLI Deluxe motherboard) has an old BIOS that doesn't allow me to turn on these features so I needed to upgrade to the latest (v1805).

But, I only run Windows under VirtualBox on this computer and I don't have a floppy drive so updating a BIOS is no trivial matter!

After some Googling, here is the answer:

1. Install the coreboot-utils package
2. As root, at a command prompt, run "flashrom" to check that your chipset is supported for writing
3. Extract the .bin file from the archive containing the updated BIOS image
4. Make a backup of the existing BIOS with "flashrom -r backup-bios.bin"
5. For the paranoid, try writing that backup back to the BIOS with "flashrom -wv backup-bios.bin" to ensure there are no errors. Reboot at this point for the really paranoid
6. Now flash the new BIOS with a similar command to step 5
7. Reboot and check that the new BIOS is OK

If you get an error from flashrom saying that the new BIOS is the wrong size, you may have had a problem unpacking the bin file from the archive as I did. Unpack the whole archive to a folder.

If flashrom doesn't work for you, there are lots of other ways - I like using GRUB to boot from a floppy disk .img file - very "Linuxy".

New Comments System

I've moved my comments over to Disqus from the default Blogger comments. It means that you don't have to log in to comment and you get much better tracking of discussions. My other blog "Much Ado About IT" has had this for a while and it seems to work really well. Unfortunately, it does mean that I've lost any existing comments - sorry to those who have commented in the past.

Run, or develop and test local web applications using a local web server

Over on my general IT blog, "Much Ado About IT", I've written a quick article about running local web servers on your desktop or laptop for local web applications or developing and testing web applications.

No need to weigh your PC down with heavy web servers!

Technorati : Development, HTML, Linux, PHP, Scripting, Software, Windows
Diigo Tag Search : Development, HTML, Linux, PHP, Scripting, Software, Windows

VirtualBox Host Interface Networking Update

Great news!

The latest versions of VirtualBox have sorted out the issues of host networking. So all of the messing around that you used to have to do, especially under Linux, is now over.

So ignore the previous post, it is no longer required.

Update

Hi, thought I'd better put an update on here as to why I haven't done any posts here recently.

Well, I've not done much with Linux recently. My OpenSUSE 11.0 desktop machine works and does pretty much everything I ask of it. At the moment, that is largely managing my photographs and not much else. This is because I'm out and about on a big project and so I'm using my monster laptop (Dell M1710) and that is running Vista as I have to be able to run Outlook, OneNote and other MS Office applications at full speed.

So, check out my general IT Blog: "Much Ado About IT".

Shell script to Back up critical files (using RSYNC)

Following up from my article on backing up USB drives, this recipe backs up the critical files on my desktop to remote storage (a NAS device on my network). Note that PC2 is the desktop to be backed up, SLUG1 (192.168.1.2) is the NAS device and USER1 is the user id doing the backup.

#!/bin/bash

# Backup Key PC2 files to Slug1

# Sync 2007 picture folders
##rsync -rl /home/user1/pictures/2007/  user1@192.168.1.2:/public/pictures/2007/

# Ensure that /mnt/slug1-root/ is mounted
#if [ ! -e /mnt/slug1-root/user1/backups/PC2/bin/ ]; then
#    mount-slug-root.sh
#fi
# Ensure that /media/slug1-public/ is mounted
#if [ ! -e /media/slug1-public/DISK1.txt ]; then
#    mount-slug-public.sh
#fi

# NOTE that to configure the rsync sessions on SLUG1, edit the file /opt/etc/rsyncd.conf
TOPUB='user1@192.168.1.2::public'
# Use this form if not using sessions
#TOPUB='user1@192.168.1.2:/public'
# Or use this form if the remote folder is mounted locally
#TOPUB='/media/slug1-public'
TOJK='user1@192.168.1.2::pc2'
#TOJK='user1@192.168.1.2:/user1/backups/PC2'
#TOJK='/mnt/slug1-root/user1/backups/PC2'

JKDT=`date --rfc-3339=date`
JKLOG="/home/user1/Backups/pc2backup_$JKDT.log"

echo "Starting PC2 backup at `date`" >$JKLOG
echo "=================================================================="
echo "Starting PC2 backup at `date`"
echo "The log file is at $JKLOG, all backups are to SLUG1/pc2 or SLUG1/public"
echo " "

#--out-format=FORMAT     output updates using the specified FORMAT
#--log-file=FILE         log what we're doing to the specified FILE
#--chmod=CHMOD
#--exclude=PATTERN       exclude files matching PATTERN
#     --exclude-from=FILE     read exclude patterns from FILE
#     --include=PATTERN       don't exclude files matching PATTERN
#     --include-from=FILE
#--dry-run
#OPTS='--verbose --archive --recursive --links --perms --executability --owner --group --devices --specials --times --human-readable --delete --delete-after --stats --ipv4 --progress --password-file=/home/user1/bin/tmppw.tmp --dry-run'
OPTS='--verbose --archive --recursive --links --executability --devices --specials --times --human-readable --delete --delete-after --stats --ipv4 --progress'
echo "Back up various bits - WARNING: DELETES files from destination" >>$JKLOG

RSYNC_PASSWORD=`kdialog --password "Password for jk@slug1 please:"`
#kdialog --password "Password for jk@slug1 please:" >~/tmppw.tmp

echo "Backups to SLUG1/pc2"
echo " "
# ** JK BACKUPS **
echo "user1/bin"
echo "rsync $OPTS /home/user1/bin/ $TOJK/bin/" >>$JKLOG
rsync $OPTS /home/user1/bin/ $TOJK/bin/ >>$JKLOG 2>&1
echo "=========================================" >>$JKLOG
echo "user1/backups"
echo "rsync $OPTS /home/user1/Backups/ $TOJK/Backups/" >>$JKLOG
rsync $OPTS /home/user1/Backups/ $TOJK/Backups/ >>$JKLOG 2>&1
echo "=========================================" >>$JKLOG
#echo "rsync $OPTS /home/user1/Downloads/ $TOJK/Downloads/" >>$JKLOG
#rsync $OPTS /home/user1/Downloads/ $TOJK/Downloads/ >>$JKLOG 2>&1
#echo "=========================================" >>$JKLOG

echo "Backups to SLUG1/public"
echo " "
# ** Backups to public **

echo "user1/ebooks"
echo "rsync $OPTS /home/user1/eBooks/ $TOPUB/ebooks/sorting/" >>$JKLOG
rsync $OPTS /home/user1/eBooks/ $TOPUB/ebooks/sorting/ >>$JKLOG 2>&1
echo "=========================================" >>$JKLOG

echo "user1/pictures/Lnnnn"
echo "Back up picture files - WARNING: Does NOT delete files from destination" >>$JKLOG
OPTS='--verbose --archive --recursive --links --times --human-readable --stats --ipv4'
echo "rsync $OPTS /home/user1/Pictures/L2007/ $TOPUB/pictures/2007/" >>$JKLOG
rsync $OPTS /home/user1/Pictures/L2007/ $TOPUB/pictures/2007/ >>$JKLOG 2>&1
echo "rsync $OPTS /home/user1/Pictures/L2008/ $TOPUB/pictures/2008/" >>$JKLOG
rsync $OPTS /home/user1/Pictures/L2008/ $TOPUB/pictures/2008/ >>$JKLOG 2>&1
echo "=========================================" >>$JKLOG

echo "user1/backups/usbpen1 & usbpen2"
echo "rsync $OPTS /home/user1/Backups/USBPEN1/ $TOJK/Backups/USBPEN1/" >>$JKLOG
rsync $OPTS /home/user1/Backups/USBPEN1/ $TOJK/Backups/USBPEN1/ >>$JKLOG 2>&1
echo "=========================================" >>$JKLOG
echo "rsync $OPTS /home/user1/Backups/USBPEN2/ $TOJK/Backups/USBPEN2/" >>$JKLOG
rsync $OPTS /home/user1/Backups/USBPEN2/ $TOJK/Backups/USBPEN2/ >>$JKLOG 2>&1
echo "=========================================" >>$JKLOG

echo "Google Earth places"
echo "Back up Google Earth myplaces.kml" >>$JKLOG
rsync $OPTS /home/user1/.googleearth/myplaces.kml $TOPUB/maps+walks/pc2-myplaces.kml >>$JKLOG 2>&1
echo "=========================================" >>$JKLOG

#echo '' >~/tmppw.tmp
#rm ~/tmppw.tmp

echo " "
echo "ENDING PC2 backup at `date`" >>$JKLOG
echo "ENDING PC2 backup at `date`"
echo "=================================================================="

# To run under schedule
#    Log
#    Replace password

I have a similar script that runs on the NAS device which backs key files on that to a remote hosting service on a different continent! That way, I don't have to worry about the house burning down or being burgled.

Automatically Backing up a USB Drive with RSYNC (KDE)

USB Drives of all kinds need to be backed up and the best backup is an automatic one (it's the only way to make sure that it gets done!).

So here is one recipe for doing just that using RSYNC and some BASH scripting magic.

I've split this into two files. You don't have to do this of course and one may well be better for you. I used two because I can run the second one manually as well. Put everything in autorun.sh if you want to backup each drive individually, however, note that KDE produces an annoying extra dialog (a security warning) asking if you really want to run the autorun.

• autorun.sh This resides in the root of the USB drive and is executed automatically by KDE when the drive is detected (though not if the drive is attached when booting)
• usb-backup-manual.sh This is a bit of a nasty hack, I have manually configured a list of drives that might be attached so that I can back them all up together. Not elegant but it works for me.

autorun.sh

#!/bin/bash

# KDE will automatically run an executable file called: .autorun, autorun or autorun.sh (in that order)
# Alternatively, a non-executable file called .autoopen or autoopen can contain a file name
# of a non-executable file on the media which will be opened with the default app for that file.
# See: http://standards.freedesktop.org/autostart-spec/autostart-spec-0.5.html#mounting

# Also see: http://b50.roxor.pl/~michal/linux/autorun.txt
# for some interesting ideas

# Where are we running from? e.g. /media/usbpen1
mediaDir=$(echo $0|sed 's/autorun//')

kdialog --title "USB Drive Backup" --yesno "I'd like to backup the USB drives, can I?"
if [ $? = 0 ]; then
echo " OK Selected, I'm going"
echo "Autobackup run: `date`" >usb-linux-auto-backup.log
exec ~/bin/usb-backup-manual.sh
else
echo " Cancel selected, so do nothing - bye."
fi

usb-backup-manual.sh

#! /bin/bash

#http://www.sanitarium.net/golug/rsync_backups.html
#http://www.mikerubel.org/computers/rsync_snapshots/
#http://rsync.samba.org/examples.html

echo "Starting USB Backup: `date`"
echo "Starting USB Backup: `date`" >~/Backups/usb-backup-manual.log

# From
MNT="/media"
# To
TO="/home/julian/Backups"

dcopRef=`kdialog --progressbar "Starting backup - press cancel to stop further processing (no next step)" 4`
dcop $dcopRef showCancelButton true

#until test "true" == `dcop $dcopRef wasCancelled`; do
for f in "CF2G1" "SD1G1" "USBPEN1" "USBPEN2"
do
dcop $dcopRef setLabel "Backing up $MNT/$f  ==>  $TO"
echo "--------------------------------------"
echo "$f  ==>  $TO"
inc=$((`dcop $dcopRef progress` + 1))
sleep 2
if [ -e $MNT/$f ]; then
  dcop $dcopRef setProgress $inc
  RSCMD="rsync --recursive --times --delete-during --stats --human-readable -h $MNT/$f $TO"
  echo $RSCMD
  echo $RSCMD  >>~/Backups/usb-backup-manual.log
  $RSCMD
  dcop $dcopRef setLabel "RSYNC for $f finished"
else
  dcop $dcopRef setProgress $inc
  dcop $dcopRef setLabel "$MNT/$f not mounted"
  echo "$MNT/$f not mounted"
  echo "$MNT/$f not mounted"  >>~/Backups/usb-backup-manual.log
fi
echo "======================================="
sleep 2
done

dcop $dcopRef close

echo "End: `date`"
echo "End: `date`" >>~/Backups/usb-backup-manual.log

Note the use of KDialog to provide a minimal GUI. In the second file, KDialog produces a progress bar.

Also note the RSYNC parameters. These are always painful to get to grips with so it is nice to have an example to work from. In this case I am backing up so I am making sure that the backup is an exact copy of the original (as opposed to synchronising which would allow changes to happen on either side).

Windows Mobile applications I use

To round off my mini-series about software I use, I thought I'd do one on Windows Mobile (AKA Pocket PC or PPC).

• Pocket Informant
• Keepass PPC
• Microsoft Reader
• MobiPocket Reader
• PIM Backup
• Pocket Navigator (Memory Map)
• Laridian Pocket Bible
• WeatherWatcher
• Google Maps
• Tombo
• Tom Tom Navigator
• SuperDoku
• Bejeweled2

There are one or two other small utilities I also use and I have a bespoke WM6 installation that includes some tools. (NB: I'll add some links and explanations in when I get time).

Windows applications I use

Following on from my post about what stops me from dropping Windows altogether, I thought that I would put together a more complete post about the Windows applications I find myself using.

• Memory Map - If ActiveSync is installed, the standard license allows you to push a copy of the Windows Mobile version to a handheld along with extracts of (or whole) maps, POI, routes, etc. It is also best to plan routes and add new POI on the desktop as its easier than the small interface on the handheld. There are two versions of the software. One will only run Ordnance Survey maps due to their overly restrictive license (in any other industry they wouldn't be allowed to get away with it). The other will run any map other than OS and also allows you to scan your own maps. If you buy the OS one for British maps, you can download the other from their US web site. Both can be installed at the same time and they don't seem to mind.
• Google Sketchup
• Laridian Pocket Bible for Windows - I generally use the Windows Mobile version of this excellent software but sometimes have the need to see larger passages, do side-by-side comparisons or write more extensive notes. The latest versions of the desktop now synchronise notes, etc.
• MobiPocket Reader for Windows - This is able to translate ebooks from HTML and PDF into its native PRC format which is what I mainly use it for. It can push the file straight to a Windows Mobile device. It can also capture RSS feeds and do reading on the desktop.
• ActiveSync - Yeuch! A necessary evil. The Linux sync software is notoriously difficult to get running and keep running and there are still some Windows Mobile installations that require a Windows machine with ActiveSync. It is though, the most dreadful and unstable software I use. I keep all of the options turned off so that it doesn't mess up the handheld.
• MyMobile - This is the epitomy of a simple piece of software that just works! It allows access to the screen and keyboard of the Windows Mobile device within the desktop. Really useful if you use the phone a lot, especially as a PDA as well. It also has a file manager that is a lot faster than the ActiveSync one.
• Microsoft Office 2007 - Although I often try to use OpenOffice for general tasks, there is no getting away from the fact that MS Office is light-years ahead in terms of features. If, like me, you rely on these for your day-to-day work then you need MS Office. I would say though that I would no longer purchase a copy for home use (not that I've ever needed to thanks to always having access to business laptops) - OpenOffice is more than sufficient for general use.
• Internet Explorer - It is a sad fact that there are still too many web sites that require IE to work. Thankfully all of the banking and finance sites seem to have got their act together.

Well, it is still a pleasantly small list. Don't get me wrong, I am not against Windows, it's just that I like having a choice and believe that real competition is good for everyone both users and suppliers. Further, I cannot really agree with the restrictive licensing that MS are always trying to force on people given the large price they put on both the software and updates. Nor can I really agree with the stifling of innovation that is the result of overly restrictive trade practices. The competition from Linux and open source is good for the market though I would really like to see OpenOffice start to innovate more rather than trying to play catchup with Office.

Enabling VirtualBox access to USB ports (OpenSUSE 11.0)

By default, OpenSUSE 10 & 11 come preconfigured WITHOUT usbfs active. Unlike Ubuntu, everything is ready to go but the fstab setting is "noauto" so it doesn't seem to get loaded even when VirtualBox wants it.

The fix for this is simple and is listed in the VirtualBox User FAQ. In "/etc/fstab" change the line for usbfs to:

usbfs /proc/bus/usb usbfs auto,busgid=XXX,busmode=0775,devgid=XXX,devmode=0664 0 0

Where XXX is the group id of the vboxusers group which can be discovered in YAST or from the command line:

grep vboxusers /etc/group

That's it, no other changes should be needed. Now mount it with:

mount usbfs

(All of these commands and edits have to be done by root or sudo). OpenSUSE 11.0 does not automatically mount the usbfs on reboot so either do it manually after a reboot and before using VirtualBox or find a way to activate it automatically (and let me know hey? ;)

Update 2008-08-17: Thanks to "timdor" from the OpenSUSE Forums who lets me know a way of automatically mounting usbfs. "To mount usbfs at boot add 'mount usbfs' without the quote marks to /etc/init.d/boot.local". Thanks timdor.

Font sizes and DPI

This seems to be a problem that won't go away. It seems inordinately hard to get a good looking set of fonts of the correct size. It is not that there aren't some nice fonts available; there are, at last, some fonts under Linux that often look superior to the Microsoft ones. It's just that it is difficult to get the whole look and feel correct. This is especially true when mixing Gnome based applications (Firefox and Thunderbird for example) and KDE. OpenOffice also refuses to play nicely. Anyway, grumping over, there is an excellent article on the Mozilla site about how to improve some of this by getting the correct DPI settings for your monitor (this is especially noticeable on my 24" beast!) The article is here.

Thoughts on OpenSUSE 11.0

Here are my experiences installing OpenSUSE 11.0 on my desktop PC (I had already successfully installed it on a VM). I opted for a KDE 3 desktop - I don't like Gnome especially and KDE 4 is not ready for day-to-day use as far as I am concerned.

• No problems at all with mixed IDE/SATA drives and GRUB ;)
• Usual problems with NVidia drivers (corrupt screen on first entry to KDE). But this time, I could boot into safe mode, add the NVidia repository, install the drivers and restart. Much easier than previously if still not quite perfect.
• I did have some problems setting up two screens this time but it is the first time I've had my big monitor (24") at install time - I had to fiddle with the settings in the standard screen settings tool before I could get the NVidia settings tool to correctly recognise the size of the smaller screen.
• I have a small issue with the NVidia drivers. I think that there is an issue with the latest drivers, I get an annoying screen blank every now and then. It is most noticable with some JavaScript enhanced web sites under FireFox for some odd reason. Under OpenSUSE 10.3, this was crashing KDE (which is why I got round to installing 11!) UPDATE 2008-07-17: This may, in the end, have been a hardware issue - I reseated the cables and everything is stable at the moment
• YAST gets better and better. This is where you really see the benefits of being backed by a professional organisation (Novell).
• You still can't set up a network bridge in YAST though :( However, it is easy if you follow the instructions in my previous blog entry.
• Everything seems a bit faster though that might be down to a fresh install?
• One thing that is massively faster is installation and update of packages - Phew! At last, one of the biggest issues with SUSE has finally been cracked. It is now very fast indeed.
• The extra back/forward buttons on my Logitech mouse work without any additional configuration - nice touch! Though the left/right scroll still doesn't work :( UPDATE 2008-07-20: Ah ha! This one is due to an oddity in the key-mappings of the Logitech mouse that I use. Hopefully, I'll now be able to sort this out when I get a chance
• There is still a bug in YAST that drops the default router at random. this stops Host Networking from working under VirtualBox

Linux Applications I use

Finaly got round to installing OpenSUSE 11.0 on my desktop so I thought this would be a good opportunity to keep track of the software I actually use. I'll edit and update this entry over time.

System

• VirtualBox (virtual machine, cross platform)
• Wine
• TurboPrint (paid for printer driver) Makes having a Canon inkjet printer worth-while again! Rather expensive for what it does but it brings the features you would expect from a good, proprietary printer driver.
• FireFox (web browser, cross platform) Add-ins:
• Adblock Plus
• CS Lite (adblock for cookies!)
• Diigo (online bookmark and web notes site)
• FlashBlock
• RAMBack (Forces FF to give back some RAM)
• Secure Login (auto populates login information - uses FF's built in security database)
• Session Manager (FF3 now recovers crashes but this saves arbitary sessions on request plus other goodies)
• Tab Mix Plus (perhaps a bit heavyweight but makes working with tabs vastly better than FF3's built in features) - you need the dev. build for FF3 UPDATE 2008-07-18: The dev. build is no longer valid for FF 3.0.1. I hope this gets updated soon, it really makes a differents to usability when you have many tabs open. UPDATE2: It seems as though you need to reinstall the dev build after updating to FF 3.0.1
• Google Gears (Run web apps offline)
Development Add-ins:
• Firebug
• YSlow
Sometimes used Add-ins:
• All-In-One Sidebar (nice but not really needed)
• CustomizeGoogle
• FEBE (backup FF, had some problems with it recently so I've stopped using it)
• LinkedIn Companion for Firefox
• PasswordExporter (Handy for backup and migration)
• iMacros (record, write and edit macros that control the browser)

Security

• KeepassX (password store, cross platform)
• TrueCrypt

Office

• OpenOffice (Documents, spreadsheets, cross platform)
• OpenOffice/MS Office document converters
• Microsoft Fonts: Windows (see also here) and Office 2007/Vista
• KDisssert/FreeMind (Mind Mapping, FreeMind is cross platform)
• Pidgin (Multi-protocol instant messaging)
• Thunderbird (email, cross platform) Add-ins:

Graphics & Media

• VLC
• MPlayer
• VueScan (paid for scanning software) This is an excellent if slightly expensive tool that does really high quality scanning from both flatbed and film scanners. It has its own drivers too. It can output multiple file types simultaneously including PDF and TIFF and can OCR as well. It also supports multi-pass scanning (primarily for film scanning).

Development

• Open Komodo (editor, cross platform) Add-ins:

Games

Other

• MemoryMap (mapping, Windows using Wine or a VM)
• Google (Note that currently only Picassa and Desktop are in Google's SUSE repository)
• Earth
• Sketchup (Not often used)

All of the above are available either in the main OpenSUSE repositories or via the build service unless I've provided a link (except for plugins of course).

Flashing the BIOS from Linux (Phoenix BIOS)

I haven't looked at the BIOS on my ageing ASUS A8N-SLI motherboard for ages - in fact not since I switched it fully to Linux - so how do you update the Phoenix BIOS without DOS or Windows? I don't bother with a floppy disk any more and creating a DOS boot CD just for this once every x years job is a faff!

Well there is an article here that might help.

Hmm, apparently that article doesn't really help - except that it tells you ways to create custom bootable CD's containing DOS, the BIOS updater and the BIOS file. Ho hum, I guess I'll get round to it soon as I am looking to put a dual core Athlon in the PC which requires a new BIOS.

VirtualBox, sharing a Linux hosts file system in a Linux guest

When you want to access the hosts file system from a guest OS in VirtualBox, you need to mount the virtual share. However, the default mount:

sudo mount -t vboxsf <VBox-share-name> <mount-location>

Will mean that only root can write to the shared folders. You need to tweak things to get a system that an ordinary user can write to. Here is the script I use:

#!/bin/bash

echo " "
echo "Script to mount the host disk under VirtualBox"
echo " "

USR=`whoami`

SHARE='Host-Root'
MNT="/home/$USR/VBoxHostRoot"

echo "  Mounting $SHARE to $MNT ..."

mkdir $MNT

sudo mount -t vboxsf -o uid=$USR $SHARE $MNT

echo "  Done."
echo

You can, of course, have this mounted by the guest OS at boot time by putting an entry into /etc/fstab. Just make sure that every user that is set up has the appropriate folder created or move the folder to somewhere central and give it permissions so that all users have read/write access.

Development Virtual Machine (VirtualBox)

I've been thinking ahead to a change of job recently. Knowing that I'll be getting a new Windows based laptop and needing to have development capabilities and having developed a taste for Linux ;)

I've used my favourite VM tool VirtualBox (now owned by Sun) to create a sparlkly new OpenSUSE 11.0 virtual machine complete with Apache, MySQL, PHP, etc. as well as office tools such as Open Office, mind/concept-mapping and diagraming applications.

Unlike the Windows XP VM that I use on my Linux desktop to give me access to Windows applications - which needs 2GB of RAM to perform nicely, the SUSE VM only needs 1GB of RAM to feel as fast (even though XP doesn't have Apache, MySQL, etc. running.

Although I've created this on my Linux desktop, it should be easy enough to transfer to my new laptop. To help keep file sizes down, I've chosen to use three virtual disks. One for SWAP, one for /home and one for the root. This will make it a bit easier to transfer back and forth if I need to - though I'll probably end up with two separate and different copies as I'm already finding that doing personal development work is much easier on the VM than it is on the host OS thanks to it being a more focused machine with less rubbish installed.

Changing backspace to go back through history (FireFox for Linux)

Us old-time Windows bods get used to our keyboard shortcuts I'm afraid. One of the most useful is using the backspace key in the browser to go back through the browsers history. Unfortunately, this is not the default under Linux (alt-left arrow is the default). FireFox has an easy way to fix this. Put "about:config" in the address bar and "backspace" in the search entry. You should see the entry "browser.backspace_action". Change this to 0.

What did I install? (For OpenSUSE)

One thing that I didn't get around to doing since I moved from Ubuntu was to work out how to make a note of what has been installed.

This is slightly complicated by the fact that you can install stuff straight from an RPM file as well as through YAST (from the repositories or 1-click links).

Well, I finally got round to working it out and here is a summary.

To see what you have done with the YAST installers, just look at the log!

sudo cat /var/log/YaST2/y2logRPM | more

But to get everything, use the raw RPM commands:

These commands show the last installed rpm packages

rpm -qa --last | more

Grep for a date:

rpm -qa --last | grep "Sun 23 Mar 2008"

Dont forget that grep takes regex's

rpm -qa --last | grep ^kde

Another way:

rpm -qa --queryformat '%{NAME} - INSTALLED - %{INSTALLTIME:date}\n'

Or maybe:

rpm -qa --queryformat '%{installtime} %{name}-%{version}-%{release} %{installtime:date}\n' | sort -nr +0 | sed -e 's/^[^ ]* //'

UPDATE 2008-07-18: I don't know if this feature was available prior to OpenSUSE 11.0 but you can now use the Software Management tool in YAST to generate a nice, XML list of all installed packages. Switch the filter to "Repositories" and select the "@System" repo. Then choose the menu "File/Export". Very useful.

What Linux system files might need editing?

Whilst great strides have been made by the Linux community to provide GUI's for many tasks, it is still a command line driven OS at it's heart. This, of course, is one of its strengths as everything can be scripted too. However, for none IT techies, it is very daunting.

Here I'm listing some of the system files I've had (or at least wanted) to change by hand. It's a very quick reference, largely for my own benefit should I need to rebuild my system.

• /etc/X11/xorg.conf Even now you might need to hand crank this file to get all of the settings you need
• /etc/bash.bashrc.local SUSE does not include /sbin in the default path
• /etc/cups/cupsd.conf Printer server subsystem (CUPS) configuration - may need to tweak the access permissions
• /etc/cups/mime.types Added some stuff to speed up printing from the FireFox web browser. See the article on Google Answers for details
• /etc/fstab What and how disk partitions get mounted at boot time - may need to change permissions or may wish to remove certain entries
• /etc/host.conf See nsswitch.conf
• /etc/hosts Useful to override host name to address mappings for development and testing work
• /etc/motd What people see if they log in to your system using a command line shell
• /etc/nsswitch.conf Controls how network names are looked up. Tweaking this can make DNS lookups a lot faster
• /etc/samba/smb.conf Configure access to Windows type resources on the host machine
• /etc/samba/smbfstab Configure if/how the host system automatically mounts Windows resources from other machines so that they appear as Linux mounts. Use this rather than /etc/fstab if you want the embedded password only visible to the root user
• /etc/sudoers Which users can sudo. You can also configure particular applications to automatically get sudo privaledges if you want to (hint: it is rather nice to set up a script that updates all installed software packages)
• /etc/sysconfig/network/ifcfg-br0 If you want to bridge two network interfaces (see the last post for information on why you would want to do this), you have to set things up by hand
• /etc/sysconfig/network/ifcfg-eth1 SUSE has an excellent GUI for managing network interfaces but just occasionally you might need to manually tweak one
• /etc/sysconfig/network/routes The SUSE network configuration GUI seems to have a tendency to loose the default route
• /etc/syslog-ng/syslog-ng.conf Configure logging levels
• /etc/syslog.conf As above
• /etc/udev/rules.d/50-udev-default.rules UDEV handles automatic creation of device files based on event rules. On my system I had to tweak the permissions on a USB scanner so that the scanning software VueScan could get access. You can also add rules to run scripts when certain hardware is detected.
• /usr/NX/etc/node.cfg Configuration for the NX server. NX is a method of getting remote access to the screen of a machine.
• /usr/NX/etc/server.cfg As above

This list applies to a desktop machine running OpenSUSE 10.3

It is quite likely that some of these files do have a GUI but sometimes it is just easier to get in there and edit.

Showing a less than symbol in a Blogger post

This took me ages to sort out so here is a reminder.

If you want to post a less-than symbol in a Blogger entry (for example in some code or a math formula), you cannot use the standard HTML entity "<" as Blogger cannot cope with it for some reason.

Instead use the hexadecimal equivalent "& # 60 ;" (NB: I've put spaces in so that Blogger doesn't turn it back into a symbol!). That works fine and shows the symbol (<) as expected.

Also note that normally you can just enter a <> blocks or where there is no space after it.

Not Linux related I know ;)