To start the Windows 7 dccw application that calibrates the colors and gamma of your monitor, press the keys [Windows] + [R] to open the windows command line and enter:
Then click on "OK".
and click on "next" and follow the instructions on the screen.
A commenter of my robocopy article asked me if a multithreaded copy tool like robocopy is really faster then a single threaded copy tool like xcopy as normally the harddisk is the bottleneck and not the CPU when copying files. As I did not found any benchmarks, I decided to do my own benchmark. Here are the results:
In my test, I copied a folder hierarchy with 429 directories and 6313 files with a overall size of 522 MB. I've run every test 2 times to ensure that the speed differences are not caused by filesystem caching. I know that this test was not made under scientific conditions, so if you have your own results, feel free to post them here as comment.
xcopy D:\server\test D:\tmp\test /D /E /Y /Q
Time to copy files
First run: 42 seconds
Second run: 41 seconds
robocopy with 1 thread
robocopy D:\server\test D:\tmp\test /MT:1 /E /LOG:d:\tmp\robocopy.log
Time to copy the files
First run: 43 seconds
Second run: 41 seconds
robocopy with 10 threads
robocopy D:\server\test D:\tmp\test /MT:10 /E /LOG:d:\tmp\robocopy.log
Time to copy the files
First run: 38 seconds
Second run: 36 seconds
Conclusion: Using a multithreaded copy tool like robocopy with 10 threads speeds up file copying and makes sense if you have to copy a large number of files. At least on my system.
Windows 7 comes with a new version of the robocopy command that is able to copy files much faster then the normal copy command or copy function of the file explorer by using several simultanious threads. So if you plan to copy a large number of files, e.g. to make a backup, use the robocopy command.
Example Copy files from C:\myFiles to F:\backup and use 10 simultanious threads. To execute robocopy, open the windows shell window or press the keys [Windows] + [R] to open the windows command line, then enter the command:
robocopy C:\myFiles F:\backup /MT:10
To get the full list of robocopy options, execute the command:
For Windows XP or Vista, you can get the robocopy command from the Microsoft Resource Kit Tools
Windows 7 contains a application to create a rescue CD easily which can be used to boot the system and diagnose problems in Windows.
To create the rescue disc, press the keys [Windows] + [R] to open the windows command line and enter:
If you like to test if the phising filter of your webbrowser works, open the following URL of the mozilla test page in the browser:
You should get a result page that looks similar to this one if you use the Mozilla Firefox browser:
The following steps describe the Installation of the XPGnome theme for Ubuntu Linux. Run the following commands in the Ubuntu Shell window to make Ubuntu look like Windows XP:
Have you ever tried to install a software on a network drive or use a network drive as data directory were the software installer checks for the drive type and refuses the installation on network drives? A workaround that helped me in these cases is to use a symlink on Windows. For example, the application wants to put its data in the path C:\ProgramData\appname but you want the data to be stored on the mapped network drive X:\mydata\appname, you can use the following command on the windows commandline to symlink the directorie:
mklink /d "C:\ProgramData\appname" "X:\mydata\appname"
The benefit is, that the application installer detects now C: as valid local harddrive and uses the symlinked path to store its data on the network drive X:\mydata\appname.
The general syntax for the mklink command is:
mklink /d symlinkpath targetdirectory
The "GodMode" in Windows 7 is a special folder which contains links to all system settings that are available in Windows 7. To Access this function, create a new folder (e.g. on your desktop or home directory) with the following name:
and save it. If you open this folder, you will get a list of all admin functions of Windows 7, there are also many functions listed that are normally not available in the Windows 7 system settings.
Since january 1 2010, spamassassin is falsely marking non spam emails as spam due to an error in the regular expression of the FH_DATE_PAST_20XX rule.
Description of the bug:
To fix this, run the following command on the shell as root user:
If you use the software ISPConfig 2 on your server, run this command:
Make a backup of the old key and certificate file
mv /etc/ssl/certs/dovecot.pem /etc/ssl/certs/dovecot.pem.old
mv /etc/ssl/private/dovecot.key /etc/ssl/private/dovecot.key.old
Create the new SSL certificate
openssl genrsa -out /etc/ssl/private/dovecot.key 1024
openssl req -new -x509 -key /etc/ssl/private/dovecot.key -out /etc/ssl/certs/dovecot.pem -days 730