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• Macbook Pro + Windows 7 (bootcamp) = Terrible battery life

  - by Scott Beeson

  I recently put Windows 7 Ultimate x64 on my wife's Macbook pro because of some software she bought for her business. Since then, the battery life has been abysmal. I've identified and researched one of the problems, which is display brightness. There is no brightness control in the windows power options, but I did manually turn it down in Bootcamp. However, it is still reporting very low battery life estimates. I'm wondering if this is because Windows thinks the display is at full brightness. Can anyone shed any light on this? (Pun intended). Also, are there any other things to look out for that may improve the battery life? (I mean in the context of Mac + Windows, not in general)

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• Unable to install Kaspersky anti virus 2011 on XP

  - by Guruprasad

  I recently tried installing Kaspersky antivirus 2011 on my XP (service pack 2) . Everytime I try to install through setup file, it initiates and then I get a pop up message saying Windows XP not compatible ( Sorry could no get the complete error message ) there is also options which come up saying "continue anyway" but it wont allow to click as the system gets hung . I also tried to skip from incompatible software by following the instructions on Kaspersky's website by creating a short cut to setup file and modifying the target field in it but still I get the same message. It also asks me to reboot before I install but it is still the same . Does this mean that I wont be able to install this antivirus software on my machine ? I also wrote to the Kaspersky support but seems they will take ages to reply.

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• Is there an encrypted write-only file system for Linux?

  - by Grumbel

  I am searching for an encrypted filesystem for Linux that can be mounted in a write-only mode, by that I mean you should be able to mount it without supplying a password, yet still be able to write/append files, but neither should you be able to read the files you have written nor read the files already on the filesystem. Access to the files should only be given when the filesystem is mounted via the password. The purpose of this is to write log files or similar data that is only written, but never modified, without having the files themselves be exposed. File permissions don't help here as I want the data to be inaccessible even when the system is fully compromised. Does such a thing exist on Linux? Or if not, what would be the best alternative to create encrypted log files? My current workaround consists of simply piping the data through gpg --encrypt, which works, but is very cumbersome, as you can't easily get access to the filesystem as a whole, you have to pipe each file through gpg --decrypt manually.

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• Filesystem to quickly get recent modifications

  - by liori

  Hello, I've got relatively big filesystem (ext4) with lots of small files and I'd like to backup it. Making full backups often is not feasible to me so I want to have a way to make differential/incremental backups (differential preferred). But... this is laptop, and scanning for changed files takes lots of time. My questions: 1) Is it possible to get list of files changed since some date from ext4's journal? I know it wasn't designed with this idea in mind, and it might be too small for bigger timespans, but maybe it is somehow possible? 2) Is it possible to monitor filesystem modifications and maintain a list of changed files reliably? I think I could use inotify, but this might be too slow to monitor full filesystem and might be unreliable. (by reliable I mean either I get all modifications since last backup (and this list is not missing anything) or an error message). Laptop runs Debian unstable.

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• Can not run ifconfig like commands via browser

  - by savruk

  Problem is I cannot run "ifconfig" or similar commands via browser. Environment: Programming language : python Server : lighttpd(CGI) , running on busybox. Well machine is really small and so I am really restricted. Tried techniques: chown every script to root. But there is no differences. Why? Because lighttpd runs under another user, I mean not under root. As it is not root, when I try to run script from browser it always calls the python file with its uid. So it makes it impossible to run "ifconfig eth0 192.168.2.123" like commands via web browser. I get "ifconfig: SIOCSIFADDR: Permission denied" error. What can I do? I do not have any sudoers file, so cannot modify sudo command. Well, I don't even have "sudo" command :) Thanks for your help

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• How to change windows bootloader target folder

  - by ST3

  Here is described part of windows boot process. I would like to ask if there is a way to change boot folder, I mean to use something else instead of C:\WINDOWS. And of course that something else is a copy of Windows directory. It looks like bcdedit is good for that purpose but I'm not sure how to use that. That I want is to change path, which currently is \Windows\system32\winload.exe to \Windows Copy\system32\winload.exe Another thing I have found out is registry, HKLM\BCD00000000\Objects\{df90fe29-c40d-11e2-a7bb-92410b6e649d}\Elements\12000002::Element value is \Windows\system32\winload.exe so changing this also may be promising. But I'm not sure if I should change registry value and don't know how to use bcdedit, so any related help will be appreciated.

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• RDS Replication across regions

  - by Bryan Migliorisi

  We are using Amazon AWS for our web services but given the recent instabilities in their infrastructure, we are trying to figure out how to run our application across multiple regions for additional redundancy. Ideally, we would run our entire app in a active-active configuration in multiple regions but our main concern is that we are using RDS, which I understand cannot replicate across regions. One possible solution (though we have not tried or proven it would work) would be to do mysqldump or EBS snapshots every hour or so but this would mean that we would be forced to run in an active-passive configuration. Our data would be at most an hour behind. This carries its own issues around data synchronization when we failover and the master comes back up, so its not the best solution. Are there any proven solutions for replicating RDS across regions?

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• Change Default Email Delay - Adding Marcro to the Correct Toolbar in a NEW Message

  - by PhilipB

  Please refer to this article: Outlook: Change default email delay for "Do not deliver before" feature But, how do I add this macro to the toolbar for a new email message?? I can add it to the toolbars that show in the main Outlook window but not on the toolbar in a new message. Does using Word as the editor have anything to do with this? Does that mean that I need to create the macro in MS Word? I need it on my toolbar in a new message window, please...

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• /data/tmp on database server?

  - by Mellon

  I am on a Linux ubuntu machine with MySQL installed. My teacher gave out an assignment which mentioned "copy cars.dat to /data/tmp on the MySQL database server" without any explanations, I do not know what is the "/data/tmp on database server" means exactly? Basically after that I need to execute SQL statement like LOAD DATA INFILE '/data/tmp/cars.dat' INTO TABLE cars So, what does copy cars.dat to /data/tmp on the database server means as there is no /data/tmp directory even? Personally, I checked /etc/mysql/my.cnf file, inside which there are definitions of : ... basedir = /usr datadir = /var/lib/mysql tmpdir = /tmp ... Does it mean to copy cars.dat to the tmpdir which is just /tmp under root directory??

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• What is the cheapest non-colocation way to serve about 10 static files at a rate of 100 megabits per

  - by Mark Maunder

  I've looked at Amazon S3 and it costs roughly $4746 per month for 100 megabits/s (which translates into 31,640 Gigabytes of data transferred. That's at a rate of $0.15 per gig.) I haven't found a cheaper "cloud" option. I'm curious if there's any other cloud hosting option out there cheaper than S3. Uptime is not an issue because I can build failover for most things into the browser. e.g. I can use javascript to say "if the image didn't load then go to this other URL instead." FYI I'm currently using a colocation facility which is about 30% cheaper than S3 and I'm familiar with colo prices - so this question is really about "cloud" services and by that I mean services where I don't have to worry about the infrastructure.

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• Can only access asp.net app on localhost

  - by Kevin Donn

  I'm trying to get an asp.net application up on IIS on a Windows Server 2008 machine. I can hit the app from localhost, no problem. But I can't access the app using the server's domain name either locally or from another machine on the network. But here's the odd part. I can access a normal file on IIS using the domain name, both from a browser running on the server and from a browser running on another machine on the network. Here's a synopsis ("http" converted to "htp" below because I don't have enough points to have all these links in my message): From IE on the server itself: works htp://localhost/foo.htm works htp://localhost/App works htp://test.foo.com/foo.htm dead htp://test.foo.com/App From IE on another machine (inside or outside my subnet): works htp://test.foo.com/foo.htm dead htp://test.foo.com/App And when I say "dead" I mean the request times out. Any ideas?

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• Why do LCD screens need a backlight? (seriously)

  - by Tudor

  Bare with me on this, I'm well aware that most LCDs have backlights. But what if, they DIDN'T? I spend long hours in front of a screen and I hate the concept of staring into a lightbulb all the time and my eyes getting sore. I need to get a new lcd (some sort of IPS that doesn't cost a fortune) soon, but no matter what I'll get, I'll still be looking at a damn light. How come you can read on a kindle w/o a backlight but there aren't any monitors like that? I mean, ideally, a screen should be like a book or any other object in real life. Just for curiosity's sake, does anyone know of any new monitor concepts? Also, http://www.indiaonrent.com/view/l/laptop-transparent-monitor.html hah!

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• GNOME/KDE Linux entirely in RAM?

  - by František Žiacik

  Hi. I'd like to have very responsive linux but I also like modern, elegant and functional desktops like gnome or kde, not the lightweight ones like xfce or lxde. Once I tried PuppyLinux and was impressed by the responsivity when I clicked an application. In my Ubuntu, it bothers me much when I click chromium and must wait 5 seconds of disk flashing until main window appears. Or evolution or anything else. Is it possible to make GNOME or KDE run entirely in RAM like PuppyLinux (of course, I mean frequently used applications and services, not all) if you have enough of it? I don't care if boot time is longer. I tried using "preload" but it didn't help much.

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• Big noise from Power Supply Unity Fa? Should I replace it immediately?

  - by EApubs

  Recently, I started to get a large noise from my PC when switched on. After some time, it disappears. I discovered that the issue is with the Power Supply Unit. Does this mean I have a failing PSU? Will it harm the PC if I didn't replace it immediately? Several years ago I bought a new computer casing which is very weird. Its small and compact. Normally, we have the PSU in the top. But in here, the PSU is on the bottom and right below the hard drive. Recently, two of my hard drives started to show problems. Read errors and bad sectors. Can it be the PSU and the design of the casing? Here's an image of the PSU and the hard drive :

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• tmux: unbind C-[ as a prefix

  - by StanAngeloff

  I have a fairly straight forward .tmux.conf file which does nothing more but to define a couple of options, such as history-limit. I have not added any custom key bindings yet. I find it extremely annoying that I cannot unbind C-[ as a prefix in tmux. Here is what I mean: $ uname -a Linux stan-inspiron 3.2.0-24-generic #39-Ubuntu SMP Mon May 21 16:52:17 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux $ tmux [0] 0:~* "stan-inspiron" 10:05 12-Jun-12 % vim Whilst inside vim, when I go to insert mode and then use C-[0 to escape insert mode and move to the first character on the line, tmux grabs the key first and complains: Window not found: :0 ** I tried all sorts of things in my .tmux.conf, but nothing works. I thought it might be a terminal or shell issue, but confirmed same behaviour on a configless machine using Bash and [Gnome] Terminal. So the question really is, how do I unbind the C-[ key from tmux? ** I have base-index 1 set.

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• What happens when you add a Graphics card to a i7 with build in graphics (e.g. HD 4000)

  - by Matt

  I'm thinking of upgrading my computer from an AMD Phenom II X4 955BE with a AMD Radeon HD 6800 Graphics card (not integrated) to using a Intel Core i7 3770. As I have no knowledge of integrated graphics, my question is, what happens to the computing power when not using the HD4000 integrated graphics of the CPU (does it mean the CPU will run faster then it would if I relied on it?) Also what is better the CPUs inbuilt HD4000 or my Radeon Graphics card? I am mostly interested in terms of content creation: Using Adobe After Effects, 3D Rendering etc. Not too bothered about gaming performance. I will be using the spare parts of this build and older systems to make a second computer for network renders so what will be the advantages of keeping the Radeon with the current system for that?

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• Analyse frequencies of date ranges in Google Spreadsheet

  - by wnstnsmth

  I have a Google Spreadsheet where I would like to compute occurrences of date ranges. As you can see in my sheet, there is a column date_utc+1 which contains almost random date data. What I would like to do is put the date values into bins of 6 hours each, i.e., 12/5/2012 23:57:04 until 12/6/2012 0:03:17 would be in the first bin, 12/6/2012 11:20:53 until 12/6/2012 17:17:07 in the second bin, and so forth. Then, I would like to count the occurrence of those bins, such as bin_from bin_to freq ----------------------------------------------- 12/5/2012 23:57:04 12/6/2012 0:03:17 2 12/6/2012 11:20:53 12/6/2012 17:17:07 19 ... ... ... Hope it is clear what I mean. Partial hints are very welcome as well since I am pretty new to spreadsheeting.

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• Getting around the FAT32 4GB file size limit

  - by Aesir

  I recently purchased a 32GB USB 3 stick that was formatted FAT32. I plugged it into my computer and attempted to copy a film onto it, the file was over 4GB however and it would not let me copy the file across because of the 4GB file size limit imposed by FAT32. After some googling I found that I could format my USB stick to have an exFAT format which would mean I could put files onto the stick greater than 4GB in size and the drive would work on both my Mac and my PC. The problem with this solution is that my PS3 cannot detect the USB stick when it is formatted with exFAT. I would like to know if there is a way I can have my USB stick formatted so it can have files greater than 4 GB and work on my PC, Mac and PS3.

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• veriSign SSL Cert for subdomain

  - by Asghar

  I have purchase SSL for secure Site from Verisign. I have configured it and its working properly on https://www.example.com . I have subdomain app.example.com . i need to work SSL on this domain also. I have 2 Questions. 1- Will same SSL will work for the subdomain too? [My SSL is not wildcard SSL] 2- If it will not work. then how can i change the same SSL that it should only work on app.example.com. i mean is there any way to change purchased SSL for subdomain. and How can i do this. https://www.example.com and http://app.example.com point to the same IP address xxx.xxx.xxx.xxx

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• HAPROXY per domain redirection

  - by SecondThought

  I'm trying to redirect requests to my load balancer by domain name with acl and hdr_dom, to a separate backend. The redirection works ok with the first request - 'GET /' (the destination server is a WordPress site) but when the client asks for the assets ('GET /blablabla/style.css' for example) the haproxy doesn't redirect it to the right backend anymore, but to the default one, with . In the haproxy log I can see the correct host that the request is for (the one that I defined in hdr_dom) but it's like that since the GET request itself is relative (I mean not containing the domain but only from the /blablabla and forth), haproxy doesn't recognize it with the hdr_dom. I'm just guessing here.. Please help...

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• Gmail exchange settings for desktop mail clients?

  - by Abhishek

  So I have an ipad, and I have my gmail account there configured via Microsoft Exchange... I don't know a lot about the underlying technologies, but using exchange is mind blowingly awesome... I mean, I receive mail INSTANTLY, and to be able to sync things like my calendars and my contacts at the same time, its just amazing... So enough gloating, and onwards to the real problem... How do I do the same thing on my Mac? Any email client will do... I've tried both, the built in Mac Mail (4.5) app, as well as Outlook for Mac 2011... And I can't get it to work on either...

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• What is a SIP 'Gateway' and how is different from a SIP Proxy/Registrar?

  - by Shrey

  Recently I started looking at SIP implementation for a future work. I was reading (Googling) about what SIP means and how to go about implementing a end-to-end SIP enabled VoIP network. What I did not get is what use does a SIP Gateway is for? How different is it with respect to SIP proxy servers or a SIP DNS/Locator like server? I understand probably QoS would be one primary factor - like dedicating a set bandwidth for SIP/VoIP specific I/O over a network. Anything else? Can anyone help me with any other hints/pointers? I fully understand that is quite a basic question - but I really couldn't find any text which could clear my doubt about what 'Gateway' would mean in SIP context and what differentiates it from other SIP based network components (like Softphones, Proxies etc). Thanks a lot.

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• A software to lock regions of a screen to prevent any windows from overlapping

  - by cybervaldez

  I've just installed nexus dock (a similar application like rocketdock), after playing with the preferences i've come across a very curious option (under position & behavior) that says: Prevent maximized windows from overlapping the dock. With it enabled, any application I maximize(and i do mean any) won't overlap the dock, it's really great. So i'm thinking perhaps there's a software that does this kind of feature which is really ideal for keeping my workspace really organized. I really hate repositioning and resizing my windows everytime. Of course there's always the manual way of doing these but it's just too much of a bother when someone from the family uses the computer. Do you know any software that does this? even a software that can just save/remember window positions would also be nice too.

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• Awstats showing strange 404 referrers

  - by Marco Demaio

  When I look at Awstats 404 errors I see sometimes strange referrers. For example on www.mydomain.com I might see a 404 error reported in Awstats that says: URL (not found) Referrers some-file.jpg http://www.mydomain.com/some-page.html some-file.jpg is a file that does not exist, so it's not strange that if someone tried to reach it got back a 404 from server. The strange part is that the referring page DOES NOT EXIST TOO, I mean http://www.domain.com/some-page.html DOES NOT EXIST, so how could it be the referrer? Is it some client cheating the referrer? Thanks!

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• problem with using polish keyboard with synergy 1.4.2

  - by Lukasz

  I installed synergy on Windows 7 as server and on Windows Vista as client. On both I can use polish keyboard using local keyboard. When I am using remote keyboard via synergy polish characters are not working (I mean in example S + Alt Gr or S + left Alt + left ctrl) I've used synergy about 1 year ago and I cannot recall that kind of problem so I think the problem is only in current version. Searching through your web site and googled I found only identical problem 5 years ago with information that it was solved. Please help me to sort it out.

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