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Netgear AC750 Wifi Range Extender (EX3700)

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Posted by: z24 | Sun, Jul 24 2016 | Category: /hardware | Permanent link | home
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LAN messaging with XMPP protocol (jabber) to chat or to copy and paste links and texts in rdp sessions

Here is how I satisfied my need to have a LAN messaging program, not really to chat with other users on the same LAN, which I could do, but to copy and paste links or texts between a rdp client and a rdp server when copy and paste from/to clipboard does not work in rdp sessions, for instance with some Android rdp clients.

These are the programs I used:

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Posted by: Z24 | Wed, Aug 27 2014 | Category: /software | Permanent link | home
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How to get rid of googleupdate.exe

Google Update is a tool that Google installs on a pc when some other Google software is installed, and runs each time Windows starts; it's supposed to update Google software, but a comprehensive description can be found on this blog.

I tagged this article as spyware, because Wikipedia defines it as

a computer software that is installed surreptitiously on a personal computer to collect information about a user, their computer or browsing habits without the user's informed consent.
Well, in my case I installed Google Earth, and during Google Earth installation there was no mention of Google Update. As most users do, I didn't read the License Agreement - I have something better to do than spend my time reading long, capitalized, boring and incomprehensible texts full of legal terms and obvious concepts.
Point 4 of Google Earth License Agreement recites:
The Software may communicate with Google servers from time to time to check for available updates to the Software, such as bug fixes, patches, enhanced functions, missing plug-ins and new versions (collectively, "Updates"). By installing the Software, you agree to automatically request and receive Updates.
It's vague at least, pretty different than "By installing this software you agree to also install a tool that will constantly run with your system and will periodically communicate with Google servers by itself, without the user intervention and knowledge" (that's what it really does).
So, Google Update is certainly installed surreptitiously because while regular software setups show the components that will be installed, the Google Update application is never mentioned during Google Earth setup, and the only mention of something vaguely resemblant to Google Update behaviour is in the License Agreement, that's a good place where to put information which you want that nobody reads: I firmly believe there is no informed consent about Google Update installation. Moreover, it appears that Google collects information about Google software usage through Google Update, still without informed consent (usage information collection is not mentioned in License Agreement either).
So, Google Update is a spyware.

How to get rid of Google Update

Once I disabled the scheduled task, the service and Firefox plugin, googleupdate.exe was never launched anymore, neither after launching Google Earth. I'll see if the Google spyware will reappear when I will update Google Earth manually (when a new version will be available).

I hope this helps, and if you still can't get rid of it using these methods, or if you find other places Google Update is hidden, please let me know. I'm curious how deep Google decided to fall.



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Posted by: Z24 | Sat, May 02 2009 | Category: /software/windows | Permanent link | home
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Motherboard Gigabyte GA-MA790FX-DS5

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Posted by: z24 | Fri, Sep 26 2008 | Category: /hardware | Permanent link | home
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Running Windows XP in Xen from its own partition

Some months ago I made some experiments with Xen and I succeeded to install and run Windows XP as a guest using Xen 3.0. In that case Windows was located in a single file and was installed through Xen. My purpose now is to make Xen running an already installed Windows from its own partition. Just to be more specific, this is my machine configuration:

I want to log into linux and run my existing Windows XP from its own partition on the EIDE disk.

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Posted by: Z24 | Mon, Dec 03 2007 | Category: /linux | Permanent link | home
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Scythe Ninja Plus rev. B

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Posted by: z24 | Mon, Oct 29 2007 | Category: /hardware | Permanent link | home
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Noctua NH-U12F

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Posted by: z24 | Mon, Oct 29 2007 | Category: /hardware | Permanent link | home
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Recover "Logical sector size is 0" with dd

A few hours ago while I was using my pc suddenly Windows froze completely (mouse was stuck and Ctrl+Alt+Del did nothing). It's not astonishing but I was quite surprised because such a freeze never happened since I began using Windows XP on my new pc.
The problem appeared at the reboot: grub, the bootloader on /dev/sda, showed this error message:

13 : Invalid or unsupported executable format

I have a dual boot configuration with Windows XP booting from a EIDE disk and Ubuntu booting from a SATA disk, so I entered Ubuntu, successfully; /dev/hda1 (the Windows partition) was not mounted while /dev/hda5 and /dev/hda6 were; attempting to mount it resulted in

Special device /dev/hda1 does not exist

At reboot I started Windows XP Recovery Console from the Windows CD and tried CHKDSK.EXE, and this was the outcome:

The volume appears to contain one or more unrecoverable problems

I booted again linux to launch fsck and see it fail:

Logical sector size is zero.


Then I found the solution in ubuntu forum:
root@am2:/home/z24# dd if=/dev/hda1 of=/defmedia/bkup_fat32_hda1.img bs=512 count=2048000 conv=noerror,sync
2048000+0 records in
2048000+0 records out
1048576000 bytes (1.0 GB) copied, 43.61 seconds, 24.0 MB/s

root@am2:/home/z24# dd if=/defmedia/bkup_fat32_hda1.img of=/home/z24/sector6.bin bs=512 count=1 skip=6 conv=noerror,sync
1+0 records in
1+0 records out
512 bytes (512 B) copied, 0.011544 seconds, 44.4 kB/s

root@am2:/home/z24# dd if=/home/z24/sector6.bin of=/dev/hda1 bs=512 count=1 conv=noerror,sync,notrunc
1+0 records in
1+0 records out
512 bytes (512 B) copied, 0.030644 seconds, 16.7 kB/s
Explanation: In the original post the partition that was just backupped with dd was also checked with losetup and mount. Thanks a lot to the ubuntuforums user Onlymee for his post!
Update 13.09.2008
The same problem happened again today and gave me the opportunity to complete the series of error messages :)
The first, at boot time, was the same:

grub: 13 : Invalid or unsupported executable format

Mounting the partition (mount -t vfat /dev/sda1 /mnt):

mount: wrong fs type, bad option, bad superblock on /dev/sda1, missing codepage or other error

dmesg | grep sda1

VFS: Can't find a valid FAT filesystem on dev sda1

But fdisk -l /dev/sda shows the partition table.
fsck.vfat /dev/sda1 (executed from Ubuntu 8.04 alternate cd)

Cluster size is zero

The solution was exactly the same: copy the sixth sector back to the first. And voilà, it booted.

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Posted by: z24 | Sun, Jun 24 2007 | Category: /hardware | Permanent link | home
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Install and boot Windows on a second hard disk

I have a SATA disk and a EIDE disk, I installed Linux on the SATA disk and now I want to install Windows on the EIDE disk.
Because Windows must be installed on the disk that boot first, I entered BIOS and changed the boot order as this:
cdrom
EIDE disk
SATA disk
Then I installed Windows on the EIDE disk.
I want to configure dual boot this way:

I changed BIOS boot order as it was previously (SATA disk before EIDE disk) and booted Linux, then I added these lines to /boot/grub/menu.list (on Ubuntu or Debian; if grub is not installed try apt-get install grub):
title WinXP
map (hd0,0) (hd1,0)
map (hd1,0) (hd0,0)
rootnoverify (hd1,0)
chainloader +1
That means Windows believes the EIDE disk is the first and SATA is the second, so it's happy and if I reboot and choose WinXP from grub menu it starts.

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Posted by: Z24 | Wed, Aug 30 2006 | Category: /windows | Permanent link | home
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