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• resize image without image quality reduction

  - by ali

  In web design , it's usually needed to design an image for example in Photoshop and then use multiple sizes of it. but I don't understand something here : When I resize the image (PNG or JPG) and reduce the dimensions of that in Photoshop , the image quality extremely gets reduced and the edges become messy while resizing the image in a simple software like Microsoft Paint gives a really better output! So what's the reason ? Is there a trick in Photoshop for image resizing which I've missed? Thanks for your help. UPDATE: I resize in this way : image image size , then enter new dimensions , all of checkboxes are checked , and have tried all of resample modes including Bicubic sharper

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• iDRAC on Dell R710 and R720

  - by BT643

  I've called Dell twice to try and clarify this basic (or so I thought) question, but I've had two different answers so far. We have a Dell R710, and a Dell R720. Does DRAC come installed by default on either? Dell said it comes build into the motherboard on the R720 but the second time I rang, they said we didn't have it. Can anyone tell me if DRAC comes as standard on the R720? I'm aware we'll need a license as well, I'm just interested in the physical capability on the server. I've never used DRAC before and know next to nothing about it, so apologies if this seems blindingly simple. Thanks

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• Time Machine for Windows

  - by Kevin L.

  A simple Google search for "Time Machine for Windows" results in a flurry of different little apps. But instead of relying on forum anecdotes and advertisements, I call on the much wiser Super User beta community for some depth on this one. Having Time Machine running on Leopard is like a warm, fuzzy blanket of comfort that I never got with RAID, rsync, or SyncToy on Windows. I'm not asking the community what the "best" backup software for Windows is, but instead: Is there any true Time Machine clone for Windows, one that includes as many of the following as possible: Completely transparent, "set-it-and-forget-it" backup Incremental backups (changes only) for every hour for a day, every day for a month, and every week until the backup disk is full Ability to rebuild from this backup disk in case of main drive meltdown (the backup doesn't have to be bootable; neither are Time Machine disks) Extremely easy to use UI (target user == wife). Bonus points for a beautiful UI

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• 500 Error when using custom account for application pool in IIS 7

  - by Brownie

  I have a very simple site with only static files in IIS 7 on Windows Server 2008 SP2. When I try to access any static file I get a 500 error. If I rename an html file to have an aspx extension it works fine. The site also works fine when using the built in identity for the application pool. The problem occurs when I switch to using a custom account for the application pool. I have tried using both local and domain accounts to run the application pool under. I have given full control to these accounts on the website directory and files. Turning on tracing reveals this error message: ModuleName: IIS Web Core Notification: 2 HttpStatus: 500 HttpReason: Internal Server Error HttpSubStatus: 0 ErrorCode: 2147943746 ConfigExceptionInfo Notification: AUTHENTICATE_REQUEST ErrorCode: Either a required impersonation level was not provided, or the provided impersonation level is invalid. (0x80070542) I have not had any luck with googling the error code.

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• How to setup a user account for a web application

  - by ximus

  Hi, What are the main guidelines to setting up a user account on a Linux machine for a web app? In my case it is a Rails application that does file management. First thing I can think of is to limit access rights to only the directories it needs. But how exactly should I go about this? Setup rights through a user group or a through the user's ownership of those directories. I have very little experience in user rights management. What else do I need to consider? I've heard of ACL's and SELinux, do I need to look into any of these to guaranty decent security for my simple web app? Any advice about this and anything not mentioned welcomed, Thanks, Max. I will be using Ubuntu.

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• Distributed file systems

  - by Neeraj

  I need to implement a distributed storage system for a set of nodes(devices) connected in a mesh network. So what basically my design goals are: The storage system should be capable of handling dynamic entry and exit of nodes. Replication (for fault tolerance). For this i am thinking of using a Distributed file system. Every node could access data in the other nodes in a transparent manner. Are there some simple, easily pluggable opensource implementations? Thanks for your thoughts!

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• remote desktop to Fedora 20 with xrdp

  - by 5YrsLaterDBA

  I was able to setup xrdp on my Fedora 13 machine and access it from my Windows 7 machine by follow the steps on the first post on this thread It was simple and easy. But when i try the same on my Fefora 20 machine, things are quite different. There is no error message but some new info like these: # chkconfig --levels 35 xrdp on Note: Forwarding request to 'systemctl enable xrdp.service'. # service xrdp start Redirecting to /bin/systemctl start xrdp.service and then I cannot remote it from my window machine. I also did the following based on the last post of above threa: # yum -y install tigervnc-server Any configuration I should do to make xrdp works for me? I was able to ping each other. EDIT: I can access the shared folder on my Windows machine from my Fedora 20. It seems the problem is on the Fedora side. how to know the service on linux is running? The "service --status-all" cannot give me useful information.

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• Simultaneous read/write to RAID array slows server to a crawl

  - by Jeff Leyser

  Fairly beefy NFS/SMB server (32GB RAM, 2 Xeon quad cores) with LSI MegaRAID 8888ELP controlling 12 drives configured into 3 different arrays. 5 2TB drives are grouped into a RAID 6 array. As expected, write performance to the array is slow. However, sustained, simultaneous read/write to the array (wether through NFS or done locally) seems to practically block any other access to anything else on the controller. For example, if I do: cp /home/joe/BigFile /home/joe/BigFileCopy where BigFile is 20G, then even a simple ls /home/jane will take many 10s of seconds to complete. In addition, an ls /backup will also take many tens of seconds, even though /backup is a different array on the same controller. As soon as the cp is done, everything is back to normal. cp /home/joe/BigFile /backup/BigFile does not exhibit this behavior. It's only when doing read/write to the same array.

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• Client backup solution for small (100-150 user) homogenous win/nix/mac office?

  - by Gomibushi

  We are currently using Symantec Backup Exec with Desktop and Laptop Option for our Windows clients, time machine for mac and offer simple rsync to linux users, in addition to home folders that are always backed up and available. We are not overly happy with the horrid complexity and multitude of minor bugs in SBE, but "when you don't touch it, it mostly works". Ideally we'd like to offer a real and full backup solution to all clients, but mostly to Linux users, as they don't have a good alternative. I have barely tested Druva on windows, and it is promising in its simplicity and "it just works" looks, but does anyone have experience with it? This post lists some that I will look at.

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• Multi serial devices on one port

  - by adopilot

  I am developing one software for managing parking lot. System is designed to use four HID RFID devices for authorization clients on gates. Each device should be connected to server by Serial port RS232. Now I wondering is there some device or method to join all that devices on one device and after that to I have only one RS232 cable connected to server. My problem is in that RFID card readers are simple (stupid) devices and there I am not able to change anything, but Ill like to know from which specific device is coming input. What Ill want to do with that new device which need to join four readers is to add suffix or prefix to string that sent from RFID card reader. So I can identify device that is sending card number to my server. I am developing my system on Win platforms.

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• xauth error with ssh X Forwarding

  - by bdk

  From my (Debain) Desktop machine, I am trying to ssh into a Debian Server with ssh -X remote-ip After logging into the remote host, I get: /usr/bin/X11/xauth: creating new authority file /root/.Xauthority /usr/bin/X11/xauth: (stdin):1: bad display name "unix:10.0" in "remove" command /usr/bin/X11/xauth: (stdin):2: bad display name "unix:10.0" in "add" command And the X Forwarding doesn't work. From my Desktop I can ssh -X into other Debian servers and it works fine. I found a lot of threads discussing similar issues on google, but they all seem to fade out without a solution, and the simple things suggested there like exporting DISPLAY or setting xhost + don't seem to make a difference.

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• Can't enable Windows XP file sharing

  - by colemanm

  The "sharing and security" option in the right-click context menu on a folder is no longer there. The File and Print sharing option is "installed" and turned on in the TCP/IP properties, but the ability to share any folders has disappeared, along with all previously shared folders. Where should I check to see what the issue is here? EDIT From comments below: "Server" service is not starting, see comment below for more... Firewall is completely disabled, too. This is XP Pro, Simple File Sharing is turned on. We've discovered that the "Server" Windows service is not starting on bootup for some reason. When attempting manual start, we get "error 2001: specified driver is invalid."

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• How can private IPV4 addresses get past iptables NAT (tcp RST,FIN)

  - by gscott

  I've got a router performing simple NAT translation using iptables iptables -t nat -o -j MASQUERADE This works fine almost all of the time except for one particular case where some TCP RST and FIN packets are leaving the router un-NAT'd. In this scenario I setup 1 or 2 client computers streaming Flash video (eg www.nasa.gov/ntv) At the router I then tear down and re-establish the public interface (which is a modem) As expected the Flash streams stall out. After the connection is re-established and I try to refresh the Flash pages, I see some TCP RST and [FIN,ACK] packets leaving the public interface (I assume as Flash attempts to recover its stream). I don't know how these packets can leave the router non-NAT'd

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• How to add PTR record for a /16 IP block in BIND using $GENERATE directive?

  - by yegle

  I'm trying to reverse map a block of IP using PTR record to some special name so their usage can be easily reflected by a simple nslookup. For example, here's a nslookup result: # nslookup 172.17.201.101 Server: 10.253.33.1 Address: 10.253.33.1#53 101.201.17.172.in-addr.arpa name = for.internal.use.only. And I learned that I can add PTR record for a /24 block by using $GENERATE directive $GENERATE 0-254 $.201.17.172 PTR for.internal.use.only. So here's the question: Am I doing right exposing infomation of IP address by adding PTR record? Any better idea? If the question above is YES, then how to add PTR record for a /16 IP range? I know I can write 255 lines of $GENTERATE directive but any better solution?

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• Qmail/Plesk email help

  - by Dotty

  Hay Guys. I'm using plesk with Qmail as an outgoing server. I've never used my plesk setup before to send emails. I usually use my ISP. I'm having a little trouble settng this up. I've created a simple email account, [email protected]. All is well, i setup my POP account in my mail client (apple mail) and i can receive mail. However i can't send any. These are the details im using smtp.mycrazydomain.com standard auth (i've tried SSL and non SSL) username: [email protected] password: mypassword However nothing has happened. Anyone got any ideas?

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• persistant data in tor browser bundle?

  - by Snesticle

  What sort of persistent data is generated by bundled Tor? I recently did an experiment using the Tor Browser Bundle for GNU-Linux. I created two directories, A and B, and placed an identical copy of Tor in each one. Next I placed a simple python script in directory A that both launched the vidalia package and, when exiting the network, deleted the entire contents of A with the exception of itself and rebuilt the bundle from the original archive. What surprises me is that after about ten hours of browsing each, A and B now show a distinct difference in startup time. Also curious is that I get a message in the log of B that never shows up in A: new control connection open which is a notice level advisory. This has nothing to do with what I was originally testing but now I'm interested in what exactly is going on. By the way I do not have to rely on Tor for my personal safety as many are forced to do so even if you just have a hunch I'd be interested in hearing it.

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• redirect on a Domino HTTP server?

  - by oidsman

  Simple question but:- We have a server running Domino Http server on port 80. We have another apache server running on 8081. We want to set a DNS entry (say 'Things') to point to a page on the 8081 server. As I see it we need to do some kind of redirect on the Domino server to say that any traffic from hostname 'Things' gets a redirect to "http://server:8081/content/". So, in summary, if I type in "http://Things" on my browser I get redirected to "http://server:8081/content/" Does anyone know how to do this on the Domino Http server? Thanks in advance for your help!

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• I'm receiving an SSL error in various browsers, but I can't find non-SSL content

  - by Scott Vercuski

  I'm receiving an error with my SSL connection. Using google chrome I see the following error: Your connection is encrypted with 128-bit encryption ... however this page includes other resources which are not secure I've scoured the source code, scripts and rendered code in the browser but cannot find where an http:// call is made. I've also used Fiddler2 to examine the traffic and everything is coming across via HTTPS. Has anyone run into this issue before and if so how did you go about finding the culprit. The website is running ASP.NET MVC3 in C#. The page in question is a simple payment page. The only external call is the google analytics tracking code. The page appears to load correctly, all images and scripts are in place.

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• Perform shell operation through secure shell

  - by Ben

  Is it possible to perform a shell operation from a bash script through a secure shell. Here is an example of why you may want to do this. Lets say you have a simple unix operating system that you need only build and run on, but you want to do all of the development on another machine. I want to write a bash script that has the following functionality: scp file to location on other machine ssh to other machine cd into correct directory make run program scp results to file on original computer exit ssh Is this remotely possible? (Pardon the Pun :p)

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• Unable to access published programs on TS web access - win server 2008 OS

  - by varun

  I am using the TS Web Access feature provided by windows server 2008 to publish programs so that they can be accessed over internet using RDC client. I am able to access the programs from the intranet domain . However, when i try from outside the college network, i am only able to see the published programs but not connect to them as i get an error saying "Remote computer cannot be connected. The certificate subject name and the gateway address requested do not match." . pls note that i have created a self -signed certificate and installed on server myself. Also, i am using the direct IPAddress of the server as the gateway address. Since i am able to access programs from with domain , i suspect it to be a simple setting with gateway or certificate. Please let me know if any further info is required on this..any help is appreciated..

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• Cisco IOS ACL types

  - by cjavapro

  The built in command help list displays access list types based on which range. router1(config)#access-list ? <1-99> IP standard access list <100-199> IP extended access list <1100-1199> Extended 48-bit MAC address access list <1300-1999> IP standard access list (expanded range) <200-299> Protocol type-code access list <2000-2699> IP extended access list (expanded range) <700-799> 48-bit MAC address access list dynamic-extended Extend the dynamic ACL absolute timer rate-limit Simple rate-limit specific access list router1(config)# What are each of the types? Can multiple types of ACLs be applied to a given interface?

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• Chatbox/shoutbox/forum with the following features.

  - by Mick

  I would like to set up a simple forum for a small number of users. The features I would like are the following, in order of priority: logging on not compulsory for posting. A single thread. All the messages are immediately visible - no need to "open" them. most recent message at the top by default. The ability to give selected users the power to delete spam messages. The ability to upload photos. Avatars. Configurable skins/size/shape. So far the closest I have come is www.tag-world.com but there are no avatars and no photos.

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• Is it possible to mount a TrueCrypt volume to a NTFS mount point?

  - by Anthony

  The question is simple really. Under Linux etc.. you can mount TrueCrypt volumes, files or partitions, to any mount point of your choosing whereas in Windows the interface only shows drive letters. I'm wondering if I can mount the volume, a partition in this case, un-encrypted to a NTFS mount point, or folder, instead of using drive letters. The reason I ask is I am running out of letters :(. I'm using Server 2008 with the latest TrueCrypt install. Note: I know how to mount a volume directly to an NTFS folder mount point but doing so, and navigating to the mount point, prompts a notice saying the volume is not formatted - to be expected as the volume is not un-encrypted at this stage.

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• Compress, encrypt and upload a directory to an FTP server in Linux

  - by Kristoffer L

  I want to accomplish something rather simple (at least it would seem to be): Compress a directory Encrypt the compressed file Upload the compressed & encrypted file via FTP I also want to accomplish this in an automated fashion on Linux server. TrueCrypt is not really an option in this case as it seems it can't compress a single file. Instead you have to make a volume that you mount and move the files into. This question answers how to do the the upload and I know how to compress a directory. It is just the encryption that's giving me problems.

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• VMware - I/O error - how to fix?

  - by Maya-G

  I'm running XP pro on VMware - it mounts and runs just fine. However, if I power down the VM and try to copy it, or even if I try to do a simple Mac Backup (using Carbon Copy Cloner), I get an i/o error at one very specific VMDK file. Here's a sample of the error - this from CCC: "12/20 22:49:30 Detected input/output error 12/20 22:49:33 rsync: read errors mapping "/Users/blahblah/Documents/Virtual Machines.localized/WindowsXP-Professional150G.vmwarevm/WindowsXP-Professional150G-000001-s065.vmdk": Input/output error (5)" How can I regain my ability to do backups of my Mac without this I/O error?

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