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• Sftp via shell - how is it possible?

  - by Tomasz Zielinski

  (Moved from StackOverflow: http://stackoverflow.com/questions/4589725/sftp-via-shell-how-it-is-possible) How is it possible for tools like http://mysecureshell.sourceforge.net/ to provide SFTP access by merely specifying them as shell by typing: usermod -s /bin/MySecureShell myuser ? I'm on Debian Lenny, with default sshd/OpenSSH. Is this e.g. a feature of SSH protocol that allows user shell to handle sftp commands? I can't wrap my head around this because usually OpenSSH needs sftp-server module (or the internal one in newer versions) - and this makes me think that sftp commands don't even hit the shell and are handled earlier or by different code path..

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• What's the difference between sudo su - postgres and sudo -u postgres?

  - by Craig Ringer

  PostgreSQL users peer authentication on unix sockets by default, where the unix user must be the same as the PostgreSQL user. So people frequently use su or sudo to become the postgres superuser. I often see people using constructs like: sudo su - postgres rather than sudo -u postgres -i and I'm wondering why. Similarly, I've seen: sudo su - postgres -c psql instead of sudo -u postgres psql Without the leading sudo the su versions would make some sense if you were on an old platform without sudo. But why on a less than prehisoric UNIX or Linux would you use sudo su ?

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• Is there a free ftp client that has macros

  - by wheresrhys

  At the moment I'm using filezilla to deploy new versions of a site to the live server. the trouble is that there are one or two config, bootstrap etc. files which are different for the live site and I have to be careful not to overwrite. Also there are big areas of code that never change (eg I use the zend framework, which is always the same). I'd like to be able to record a macro to upload the same bunch of files and folders every time, excluding subdirectories and files which shouldn't be overwritten. Does any ftp client offer this?

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• Create Virtual Image of Laptop before Formatting

  - by Simon Mark Smith

  I have a 3 year old laptop running Windows XP that I used for business. Although I have not used the laptop in over a year, I now want to re-commission it with Windows 7 and a fresh install. Before I do the fresh install I want to create a Virtual Image of the laptop that I can keep and potentially run on my desktop machine should I ever need to access any of the old files/projects that it contains currently. I know that most people will say just copy the files over to your desktop, but my concern is the configuration of the laptop. I used to use it for development and it has older versions of Visual Studio, SQL Server, Active X controls etc, etc than I currently use so I really want to preserve the environment not just the files. So really I am asking what is the best tool-set/method to achieve this? I understand there are free VM tools available but I have never done this before and would appreciate any help.

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• Cannot access any remote resource after connecting to Cisco VPN on Vista

  - by Deepak Singh Rawat

  I have installed Cisco vpn client version 5.0.07.0290 on Vista Business SP2. I am able to successfully connnect to the vpn. But after connecting I am not able to access any resource in the vpn (like database, other computers in the network etc.). I have tried the following without any success : Older versions of the client Other vpn clients like Shrewsoft : same issue as the cisco vpn client Disabled Internet Connection Sharing service Installed the client in the root administrator account Run the installer as administrator Run the vpngui and ipsecdialer in XP compatibility mode and as administrator I am not sure how to troubleshoot this issue. Can somebody please help me in troubleshooting this issue? P.S : I've Zonealarm firewall, can that be an issue?

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• When did Apple stop using the name "Macintosh" in favor of "Mac", and does anyone know why?

  - by schnapple

  As of a few months ago I finally joined the ranks of Macintosh owners. Except "Macintosh" doesn't seem to exist anymore for some reason. I noticed everything was "Mac", i.e. Mac OS X, MacBook, Mac mini, Mac Pro, etc. I didn't pay a whole lot of attention, but I always thought everyone was using shorthand. I mean "MacBook" is the real name of the computer, as is "iMac", but I always thought when people said "Mac Pro" they were just shortening the real name, "Macintosh Pro". And yet now when you go to the Apple site, a search for "Macintosh" turns up several instances of the name being used on various things (system requirements for old versions of QuickTime, the occasional piece of software with "for the Macintosh" in the name) but nothing from the main Mac pages. Near as I can tell they're really no longer called "Macintoshes" they're just "Macs" When did this happen, and does anyone know why Apple ditched the term "Macintosh"?

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• curl installation and upgrade

  - by user26202

  On a centos 5.7 machine we had curl 7.15 installed . We also have PHP installed in it as some of the PHP libraries are linked to curl. We wanted to upgrade curl to 7.19 but yum update was failing . Then we manually installed 7.19 with the sources. Now we have two curl versions /usr/bin/curl points to 7.15 /usr/local/bin/curl points to 7.19 And PHP still uses curl 7.15 .How to do delete curl 7.15 without removing the dependency (like PHP and make PHP start using curl 7.19?

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• Image Magick and Ghostscript

  - by user114671

  I mainly do web design but I host a few client sites on a Centos 5 VPS. A new client has asked me to host their site and I've been given the following configuration requirement: Apache 2.2.3 PHP 5.2.17 MySQL 5.0.77 Image Magick 6.5.1-0 (not as an Apache module) Ghostscript 8.7 Checking php_info() I have: Apache 2.2.3 PHP 5.2.14 MySQL 5.0.90 I don't have IM or GS listed. I expect that my versions of PHP and MySQL are similar enough to work, but how do I get my server set up to work with this client's site as well?

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• Are animated GIFs supported in Google Chrome?

  - by user30852

  I have recently been testing a website and found animated gif images that seem to show fine in IE and Firefox but in Google Chrome they only show briefly and then dissapear! This happens if I view the image on the page or view the file directly. Are there any reported problems in displaying GIFs in Chrome, or is it just being fussy? There seemed to have been some problems in older versions of Chrome, but it's hard to believe something as simple as this wouldn't have been fixed by now. The version of Google Chrome I am using is: 4.1.249.1021 Not sure if this is relevant, but some info about the image: Width: 216 pixels Height: 36 pixels Horizontal resolution: 96dpi Vertical resolution: 96dpi Bit Depth: 32 Frame Count: 3 EDIT: Seems to be a problem relating to the latest beta version of Chrome, as it works fine in 4.0.249

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• Router loses connection to internet randomly

  - by tvanover

  I have a Belkin wireless G plus Mimo router and it randomly loses the connection to the internet. It seems to happen for a second or two, not enough to impact day to day browsing. But enough to disconnect games, or stall videos I am watching. It happens whether I am plugged into the router or connecting via wifi. I am unsure if it is my router or Comcast that is causing this issue. If I connect a computer directly to the modem the problem never occurs, so that tells me it is probably the router. But I also had a Netgear wireless router WGR614, and it had the same problem. I don't know where to start looking for the source of the problem. What logs should I be combing through? All my machines are win 7 of varying versions.

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• "RPC Server is unavailable" on Windows 7 Client with Samba3 making logon impossible

  - by HalloDu

  I am running an Samba 3.4.* Server with LDAP Backend on Ubuntu 10.04 LTS as a PDC for purely Windows 7 Clients (about 50). It worked quite fine for a long time, but now sometimes on some machines (really strange to replicate) I cannot login, because he tells me that there are no logon servers. When I look in the machines eventlog after logging in locally, the only error it shows is: "RPC Server is unavailable". The system was ported quite a while back from another machine running the same software versions to this new one. Are there maybe trust or caching issues between the workstations and the domain controller? The number of machines affecting is steadily increasing and so do you know any reason as to why this problem occurs? Any information on workstation and domain trust would also be welcome (After googleing I did not find anything really enlightening).

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• Trying to find a duplicate version of PHP on my system. Where is it?

  - by macek

  I have having a helluva time trying to track down which php binary my apache is using. locate bin/php returns this list /usr/bin/php /usr/bin/php-cgi /usr/bin/php-config /usr/bin/phpize /usr/local/bin/php /usr/local/bin/php-cgi /usr/local/bin/php-config /usr/local/bin/php-shell.sh /usr/local/bin/phpize Let's see the versions: /usr/bin/php -v shows 5.3.2 /usr/bin/local/php -v shows 5.3.2 What about which? [macek ~]$ which php /usr/bin/php The problem phpinfo(); when executed by apache shows 5.2.11 Where is this phantom 5.2.11 on my system?

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• What cookies are allowed from Internet Explorer using this option?

  - by kiamlaluno

  When I look at the options used from Internet Explorer for the cookies, I read the following description: Blocca i cookie di terze party privi di una versione compatta dell'informativa sulla privacy. Its translation is roughtly: Blocks the cookies without a compact version of the privacy's informative. I don't get which cookies are blocked. From that description, it seems the cookies should include a compact description of the privacy informative, but I don't get how cookies can contain that information, or what happens with cookies set from sites outside the European Union. What cookies are blocked? The screenshot has been taken from Internet Explorer 9, but that words were used also from previous versions. The settings are the ones shown for the "Privacy" tab; I don't recall if the English version calls that tab the same way. EDIT, English screenshot .

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• How to remove $data stream from file in windows 8

  - by chris.w.mclean

  Windows for a while now has added an additional hidden stream to files that were downloaded from the internet. If you attempted to use these files, you'd get all kinds of odd behavior as windows was detecting this additional stream and then preventing the app / exe from getting all sorts of security clearance. But in previous versions of windows you could right click on a file, go to properties then click 'Unblock' which removed the extra stream. Windows 8 seems to be doing the additional streams trick, but I haven't yet found a way to remove them using the win 8 UI. Anyone know how to do this?

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• Apache + Bind Problems

  - by Gabriel

  Hello, I am using VirtualMin on Debian-50-lenny-64-LAMP (Debian Linux 5.0). I've upgraded some packages including "bind". Since the upgrade, both Apache and Bind stopped working. Here's the errors I get: Blockquote Starting web server: apache2apache2: Could not reliably determine the server's fully qualified domain name, using 78.46.92.11 for ServerName (98)Address already in use: make_sock: could not bind to address [::]:80 (98)Address already in use: make_sock: could not bind to address 0.0.0.0:80 no listening sockets available, shutting down Unable to open logs failed! and Failed to start BIND : Unknown error I am sure that some files were changed after the upgrade and this is a simple problems to solve, but unfortunately, it's the first time I am in this situation and I just couldn't find a solution. I've Googled about the errors but still couldn't make it work. Now I am sorry I did the update. I usually make updates to have the latest versions of the packages that are installed in the server. Any ideas?

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• SOLR high CPU usage in amazon EC2

  - by user644745

  I installed solr-3.6 in my local windows box and it worked fine. I installed solr-4.0 in amazon ec2 linux large instance and the cpu usage shot upto 100%. It maintained at 80-90% average cpu power. I thought it could be because of 4.0, So I installed 3.6 in EC2 again. But again the CPU usage was 80-90% average. With both the versions, solr works in EC2. dont know why CPU usage is so high. i started the solr server using "sudo nohup java -jar start.jar &" In my local box java 1.7 is installed and in EC2 it is 1.6.0_24. I have mapped solr dir to an EBS volume. /dev/mapper/vg1-solr 8361916 1935928 6342128 24% /home/ec2-user/SOLR/solr/example/solr Is there any known issue ?

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• Windows 8.1 touchpad three-finger-multitouch gesture gone

  - by THEVAN3D

  Couple of days ago, i installed the Windows 8.1 Pro WMC and all of a sudden the touchpad gesture, which worked like a charm back in Win 8.1 preview, Win 8 and even Win 7, just stopped working. I am talking about the "Three Finger Flick" feature, which is used to go back and forward in folders and/or internet browsers at first i didnt even have the left edge pull feature, but then i added some values in this key into regedit, and now i have it [HKEY_CURRENT_USER\Software\Synaptics\SynTPEnh\ZoneConfig\TouchPadPS2\Left Edge Pull] I Googled that, i didnt know what to do by myself and i dont know where to write and what to write anything in order to get the three finger flick back too I installed various versions of drivers starting from about version 15 to the version 17.0.8.0 (the one that i currently have), and even though i have all the other gestures, taps and swipes working they are not in the device settings, there is no multitouch gestures in device settings so thats why i guess i have to write something in regedit, but again, i dont know what to write, and where to write. please help me if you can

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• Fill a table from a RAND based formula in Excel 2010

  - by Greg Reynolds

  I am trying to do a Monte Carlo simulation using Excel, but a lot of the tutorials I have found are either for older versions of the product, or are not quite what I am after. A simple example of the kind of think I am after is: Cell A1 contains the formula to simulate (for example int(6*rand())+1 to simulate rolling a dice). I have 10 rows of "Trials". What I want is to somehow point each row at a different calculation of the formula in A1. So I would end up with something like Trial Value 1 2 2 5 3 6 4 2 5 1 6 3 7 2 8 4 9 2 10 1 I have tried playing with some of the "What-if Analysis" tools, but I am a bit lost.

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• How does one check whether the OS X "disabled" flag for launchd services is set?

  - by Charles Duffy

  According to the man page for launchctl (emphasis mine):    -w   Overrides the Disabled key and sets it to false. In previous versions, this option would modify the configuration file. Now the state of the Disabled key is stored elsewhere on-disk. Because the current state of the disabled flag is no longer set in the .plist file itself, checking for the Disabled key is no longer an accurate way to tell if the service will run on next boot. Where is this "elsewhere on-disk"? More to the point (and more importantly), how does one check whether this flag is set? Also, is it possible to set a service to run on next boot without forcing it to start immediately (as with launchctl load -w /Library/LaunchDaemons/my-service.plist)?

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• Tell browsers to cache until last modified date changes?

  - by Chad Johnson

  My web site consists of static HTML files which are usually republished once per day, and sometimes more. I'm using Apache. In the vhost settings for my site, I'd like to tell browsers to cache HTML files indefinitely, until Apache sees that they are modified. So as soon as an HTML file is changed, Apache should immediately begin telling browsers it's changed and send the updated file. As soon as a new file is published, browsers should immediately begin receiving that...they should never receive old versions of files. Maybe ExpiresByType text/html modification and no "plus x days." Is something like this possible?

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• Debian Testing installs Iceweasel ESR (severely outdated)?

  - by Lucas Phillips

  I just reinstalled Debian Testing, and for some reason, instead of Iceweasel 25, I have 17. The installed and candidate versions are both 17.0.9esr-1~deb7u1. apt-get update && apt-get upgrade does nothing, and it seems that version 17 is the latest for this install. I was on Debian Testing before, and Iceweasel was at the latest version. Even Debian Stable had an Iceweasel version 20. Why would it be trying to install ESR now?

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• VLC volume only to 200%?

  - by Tomas

  According to this comment it seems that VLC could boost the audio volume up to 800% in the past versions. Today I installed VLC multimedia player version 2.0.5 and it is capable only to boost up to 200%! This is not much, considering that some youtube videos are very quiet. This is what I need VLC for - to boost up volume for quiet youtube videos. So, where's the problem? Was it actually 800% in the past? Did VLC really limit this from former 800% to current 200%? Is it possible to somehow achieve more boost with VLC? Or with other software? I am using Windows 7.

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• Network-Backup-Software with file versioning and web-interface

  - by dlang

  Dear All! I would like to backup our business-data to a remote backup-server. We would like to set-up our own backup-server running on any operating system (windows appreciated) which comes with a web-interface, that enables to restore individual versions of one file. Because budget is limited, an open-source software or at least a cheap software is a must! Unfortunately I couldn't find even a single software, which fulfills the requirements of file versioning and web-interface for single file-restore. Do any of you have already set-up such a system? Best regards, Daniel Lang

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• Blender Render Cycles

  - by usersuper

  I get a very poor Render in cycles. Not just minor problems, but just a cloud of of black and white dots and no contour at all. I read a lot about this now and couldn't get it to work. Does anybody know how to get the settings right. Or better what do I have to pay attention to get better renders. I also tried external renderer like Lux, which increased my CPU usage to 98 % (just the default cube and clicking on Lux and load materials). Is this normal and what could i do to improve that. I have various versions of Blender (2.61,2.62,2.63) on Mac OS X. Thanks for the time.

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• Steam app and age verification issue

  - by TronicZomB

  I have OSX 10.9.4 with the Steam App (API v016 and package versions 1407966480) installed. When I would visit game pages that required age verification, my birthday would be filled in due to being logged in and I would just click OK to move past. Now the age verification shows up with January 1st, 2014 each time and it will not let me change the date. The drop down menus just show up blank. I have tried to log out of my computer, log out of Steam, restart Steam, restart my computer, and reinstall Steam. Nothing has worked and it continues to have this issue. When I visit the Steam website, the age verification drop downs work just fine. What is causing this issue? And/or how can I fix this issue?

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