All Issues
24,993 verified issues
How does Windows 7 licensing work for running the OS as Virtual Machines?
I plan on buying Windows 7 Ultimate Edition to run on an old Pentium 4. I also want to run Windows 7 virtual machines inside Windows 7. My question is two fold: Do I need a license for each Virtual Machine? Does the answer change if I use a third party virtualization platform (e.g. VirtualBox, VMWare, QEMU, etc) as opposed to VirtualPC?
Why is the 64-bit version of Windows bigger than the 32-bit version?
The difference in size for the Windows 8 Consumer Preview ISO images, between the 64 bit and the 32 versions is 800 Mb or a difference of 24%. I've never seen a difference so large. Why is there such a big difference?
The @ symbol and systemctl and vsftpd
I have a two part question. What is the significance of the @ symbol in systemctl scripts? How to start vsftpd in fedora 16, (which in some tutorials seems to contain an @ in it's name)? I have done everything the tutorials say, and it still gives me an error. http://blog.tuxforge.com/fedora-16-vsftpd/ What I've done What I see (I have tried this with a absolute path as well, and after I checked there is no such file. The real file does not contain an @ sign, and is located under the /lib/systemd/system/ directory. I have also tried starting and enabling with and without the @ symbol, enabling works, but starting doesn't. I realize the article is now obsolete, but I still cannot seem to start the service. When I try to connect it doesn't let me) EDIT: I got the service to start somehow, but I would still like to know what the @ symbol means in some service names. Also I am still getting a login error number #500 cannot change directory [...], what does this mean? To start it I just ty…
What is the 127.0.0.2 IP address for?
I'm running the example in hiredis, which is using as the Redis server IP, and it is running properly. Actually, the redis server is running on the same machine. I know that is the IP address of , but how about ? Is it the same as ?
How to enable hardware virtualization on Asus motherboard
I have motherboard model: Asus MB P8Z68-V LX; LGA1155, Intel Z68 and processor Intel Core i7-2600 (LGA1155) Searches on the Internet indicate hardware virtualization should be possible with these components, but I am not able to enable it. There is no such option in the BIOS, I have also tried with the answer from this question but there is no path Advanced - CPU Configuration - Intel Virtualization Technology (the last one is missing) Can you please help me enable hardware virtualization?
How to automount SMB shared network drives in Mac OS X Lion
In Mac OS X 10.7 (Lion) Apple has replaced good old SMB support. Now I can't auto connect to my shared (SMB) network drives. Workarounds? Or is this impossible? In OS X Snow Leopard, I could automatically connect my Ubuntu (SMB) shared network drives with auto_smb / auto_master (autofs configuration in /private/etc/). I made three mount points (folders) directly in '/Volumes', I used /Volumes/Data and /Volumes/webroot (both SMB shared). Unfortunately Lion doesn't connect (automount) my network drives. I have to manually connect to the server (Ubuntu file server) in Finder, then open up Terminal to navigate to the mount points, and then it connects. This is not a workable solution. I've searched (Google/SO) but found no solutions apart from an unsupported hack. Isn't it possible anymore to automatically connect to an SMB-shared drive during startup?
How do I SCP from remote machine to local machine when I am outside of my home network?
While I understand how to scp files to and from my server from within my home network, how can I scp a file from my server to my local machine when I am on the outside, say at Starbucks? While I am able to scp from my local machine to my server in this scenario, I haven't figured out how to grab a file from home, using the command line. Any suggestions?
How can I detect the amount of memory slots I have?
I know that there used to be a Corsair memory detection tool, but I can no longer find it. I didn't find anything when searching Google. I would like to scan my machine to know a few things: How many memory slots I have on my motherboard. The stats per memory stick I have installed in my machine (i.e. speed and size of each stick) The maximum allowable size and speed per slot (i.e. my motherboard can manage 4GB per slot, at DDR27600 - if that is even a speed, been a while since I upgraded :|) I am using Windows XP and 7. Any suggestions?
Difference between /etc/crontab and "crontab -e"
What is the difference between the crontab located in and the crontab that can be edited using ?
How to do Rsync-like encrypted backup?
I want to save a backup of my data on a remote server, but never want the backup server to see the data unencrypted. Editing a single file and backing up should not result in everything being encrypted and sent again. The remote server should preferably not even know the directory structure (and especially not the directory names). Is there such a solution?
How do I diagnose not being able to reach a specific website as an end user?
If I can generally reach web pages on the Internet but can't reach a specific one, how do I troubleshoot what the cause is as an end user? This question was a Super User Question of the Week. Read the blog entry for more details or contribute to the blog yourself
How to get rid of the warnings when opening a file that has a .swp file?
How can I get rid of the annoying warnings when I open a file that has a .swp file? Or, how do I not generate the .swp files at all? Example warning:
How to make a blank page in Google Chrome at start-up?
Does Google Chrome has anything similar to about:blank page in IE and Firefox? I did not find any suitable page mentioning this? PS: I tried about:blank but it looked like Chrome is trying to load something before showing blank page...
PuTTY - Automatic Reconnect After Internet Interruption?
After a small hiccup in internet connection, any open PuTTY windows throw up a message box saying there was a connection error. Is there a way to automate retry attempts? Or better yet, tell it to watch the status of the network and reconnect when internet access is reestablished? I know there's the "stackoverflow" solution of writing a program that invokes PuTTY using its command line interface using -load and -pw. But I'm looking for a "superuser" solution because that seems like less work. Should I look into Tunnelier instead? Background: I'm using an SSH tunnel with port forwarding to get remote access to a database on BlueHost.
Auto-reloading a file in VIM as soon as it changes on disk
Assuming that a file doesn't have unsaved changes in the VIM buffer, I'd like it to reload automatically if the file changes on disk. The most frequent use case for this is when I update the working copy in which the file resides. How can I achieve this?
How do you get screen to automatically connect to the current ssh-agent when re-attaching to an existing screen?
If you start a screen session while ssh-agent is running (from ssh -A agent forwarding), accessing ssh-agent works fine. However, if you detach from that session, log out, log in again (with ssh-agent forwarding), and re-attach to your screen session, ssh-agent access doesn't work. How can this be fixed?
How to determine what Outlook rule was applied?
I have a number of rules that filter mail to my deleted items folder. Sometimes it seems a rule applies to a message which I did not intend it to apply to. How can you "debug" which rule applied to a given message?
Is there a log that records shutdowns in Linux?
I was wondering if there is a log file in Linux which records every time the computer is shut down? The reason I am asking is I am doing some tests involving how long my laptop battery lasts under certain conditions. My laptop is configured to automatically shut down when there is about 10 minutes of battery power left, so if there is a log file somewhere that records when the computer is shut down, this will make my testing much easier. I'm running Ubuntu 10.04. Thanks!
Is there a way to manage tabs efficiently in Notepad++
Is there a way to group tabs in Notepad++? I frequently end-up with 30 or more tabs (files) opened, and it's becoming quite hard to figure out which tab I want to switch to. If I could group them per affinity (one tab-bar per group?), that would be a good start.
How does the "Compatibility Mode" in Windows work?
How does the Compatibility Mode in Windows work internally?