First, press the Windows+R keys simultaneously. Then type in regedit.exe and press enter. This will bring up the Registry Editor. Press ctrl+f and search for display1_downscalingsupported be sure to check the “Match whole string only” box. When it finishes searching double click on it and change the 0 to a 1. Reboot the computer and enjoy the apps.
Note if you do not have your graphics driver installed then you will not be able to find the display1_downscalingsupported in redgedit.
Requirements:
The first thing we need to do format the thumb drive to NTFS. In Windows you can do this by right clicking on your drive in Explorer click format and then click NTFS under “File system” then click format.
Once it is formatted you need to find the Windows 8.1 iso and mount it with your favorite iso mounter. Once mounted just copy all the contents of the iso to your thumb drive.
Congratulations, you now have a bootable Windows 8.1 thumb drive.
1. Open a terminal and change to the root user
su -
2. Then cd into the following directory
cd /etc/yum.repos.d/
3. Install wget.
yum install wget
4. Download the repo files with wget.
wget http://download.virtualbox.org/virtualbox/rpm/fedora/virtualbox.repo
5. Install the dependencies.
yum install binutils gcc make patch libgomp glibc-headers glibc-devel kernel-headers kernel-devel dkms
6. Update your computer.
yum update
7. Install VirtualBox.
yum install VirtualBox-4.2
8. Add the VirtualBox user to the vboxusers group
usermod -a -G vboxusers user_name
9. Reboot your computer.
reboot
10. Enjoy. If you run into problems try the following.
/etc/init.d/vboxdrv setup
Note:
I have created a script that will do all this for you, download here. All you need to do is the following 3 commands.
cd /pathto/fedora-vb-installer.sh chmod +x fedora-vb-installer.sh sudo ./fedora-vb-installer.sh
The wget tool is an extremely useful command that allows you to download files from websites from the command line. Before you begin you should make sure you have Xcode installed. If you don’t, just download it from the App Store, its free.
To install wget on your mac you first need to download the source code from here. Next you need to extract the tarball. You can do this by double clicking the file in Finder or you can run the following command in the terminal
tar -zxvf ~/Downlaods/wget-1.14.tar.gz
Run the rest of these commands in the Terminal app.
Next we will cd into the directory.
cd ~/Downloads/wget-1.14
Then,
./configure --with-ssl=openssl
Make it
make
and finally install it.
sudo make install
And of course make sure it works.
wget --help
Congratulations, you have successfully compiled wget from source.
There are a couple ways to set up a cron job. If you have a script that you want to run ever so often, you could drop it in one of the cron directories, like cron.daily, or cron.weekly. These are located in /etc. Another way to do it is to use crontab.
To setup a cron job in crontab type
crontab -e
and then,
*/30 * * * * /path/to/yourscript.sh
The “*/30” makes the script run every 30 minutes. Below gives you a better idea of how the line works. The asterisk (*) specifies all possible values for a field, but can/should be replaced with the time you want the script to execute.
* * * * * command to be executed *(min) *(hr) *(DoM) *(month) *(week) /path/to/command_or_script.sh
Below are a couple of examples of how to run a script or command.
Every minute.
* * * * * /path/to/script.sh
Every day 10 minutes after 1 in the morning,
10 1 * * * /path/to/command
Also, if you don’t want to be emailed the output of the command, you can simple append “>/dev/null 2>&1” to the end of the crontab line.
Example
0 * 1 * * /path/to/command/ >/dev/null 2>&1
This assumes you are connected to your XenServer with XenCenter. First you need to mount the xs-tools.iso on the system. To do this right click on the VM you want to install XenServer Tools on and click “Install XenServer Tools”
Then from the console tab do the following as the root user, or just type sudo before each command
mkdir /mnt/xs-tools
mount /dev/cdrom /mnt/xs-tools
cd /mnt/xs-tools/Linux/
bash install.sh
After it finishes, you need to reboot.
The first thing we need to do, is open our interfaces file. Execute the following from a terminal.
sudo vi /etc/network/interfaces
or
sudo nano /etc/network/interfaces
Then add or copy and paste the following.
auto eth0
iface eth0 inet static
address 192.168.1.100
netmask 255.255.255.0
network 192.168.1.0
broadcast 192.168.1.255
gateway 192.168.1.1
Close the file. Now we need to change the DNS settings
sudo vi /etc/resolv.conf
or
sudo nano /etc/resolv.conf
Edit the nameserver line to something like the following.
nameserver 8.8.8.8
Close the file and then restart the networking stuff.
sudo /etc/init.d/networking restart
Found this from here, since it was useful I decided to paste it here.
I saw a few guides on how to make a bootable OS X flash drive, but not many on how to do it without already having access to an OS X machine. Here are my ugly notes on creating a bootable OS X Mountain Lion (10.8)USB drive from/with Linux.
The copy of OS X 10.8 (Mountain Lion) I downloaded was in the form of a file named “InstallESD.dmg”. First, you’ll need to open it. You will need p7zip installed. If you try to dmg2img this file, you won’t get very far, so just extract it with 7-zip:
7z x InstallESD.dmg
The unrolled dmg file I found was 4348218934 bytes in size and had an md5sum of 8b4869920cd740414fe6b7e3f0b1be3e. Inside was another file with the same name (although it is slightly smaller) which is the actual install image. The internal dmg file (the one we really want) was 4333438336 bytes in size and had an md5sum of 68fd407bb74e4a2dd1913ce8bae80fc4. It must be converted prior to mounting, and for this you will need dmg2img installed.
cd InstallMacOSX.pkg
dmg2img InstallESD.dmg
The resulting img file was only 137322496 in bytes and had an md5sum of 05b5788f10f7300c457e2aed735eb83a. Now find the offset to properly mount the install partition in the resulting file.
hexdump -C InstallESD.img | grep “48 2b 00 04”
00008400 48 2b 00 04 80 00 01 00 31 30 2e 30 00 00 00 00 |H+……10.0….|
I got “00008400” which is hex for 33792 in decimal:
$echo $((0x00008400))
33792
We need to subtract 1024 from this number to find the target offset:
$echo ‘33792-1024’|bc
32768
Now make the loop device:
losetup -o 32768 /dev/loop0 /path/to/InstallMacOSX.pkg/InstallESD.img
And finally, mount it:
mount -t hfsplus /dev/loop0 /mnt/tmp/or/wherever/you/want
Next, I re-initialized an 8GB USB flash drive with an MSDOS partition table and created an HFS+ partition with gparted after installing these packages: hfsprogs hfsplus hfsutils.
Next, mount the HFS+ USB device R/W and cd to the /mount/point/of/loop/device and copy the contents of the mounted image:
tar cvf – * | tar xvf – -C /mount/point/to/hfs/usb/drive
Sync, unmount, insert USB drive into the Mac and power it on while holding down the OPTION key.
By default iptables firewall stores its configuration at /etc/sysconfig/iptables file. You need to edit this file and add rules to open port number.
Note: if you have SELinux enabled, you’ll need to allow the port with semanage.
To open a different port just enter the port number.
Open flle /etc/sysconfig/iptables:
# vi /etc/sysconfig/iptables
Append rule as follows:
A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT
Save and close the file. Restart iptables:
# /etc/init.d/iptables restart
or,
#service iptables restart
Verify that port is open
Run the following command:
netstat -tulpn | less
Make sure iptables is allowing the port you enabled:
iptables -L -n
If you need more info you can refer to the man page:
man iptables
There are multiple ways to reset windows passwords. This one replaces the sticky key program with a command prompt from which you can change the password.
To reset the forgotten windows password, follow these steps:
If you don’t know your user name, just type net user to list the available user names.
I recommend that you replace sethc.exe with the copy you stored in the root folder of your system drive in step 3. For this, you have to boot up again with Windows setup DVD because you can’t replace system files while the Windows installation is online. Then you have to enter this command:
copy /y c:\sethc.exe c:\windows\system32\sethc.exe
You are now finished.