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How do I change folder timestamps recursively?

- by MonkeyWrench32

I was wondering if anyone knows how to change the timestamps of folders recursively based on the latest timestamp found of the files in that folder. So for example: jon@UbuntuPanther:/media/media/MP3s/Foo Fighters/(1997-05-20) The Colour and The Shape$ ls -alF total 55220 drwxr-xr-x 2 jon jon 4096 2010-08-30 12:34 ./ drwxr-xr-x 11 jon jon 4096 2010-08-30 12:34 ../ -rw-r--r-- 1 jon jon 1694044 2010-04-18 00:51 Foo Fighters - Doll.mp3 -rw-r--r-- 1 jon jon 3151170 2010-04-18 00:51 Foo Fighters - Enough Space.mp3 -rw-r--r-- 1 jon jon 5004289 2010-04-18 00:52 Foo Fighters - Everlong.mp3 -rw-r--r-- 1 jon jon 5803125 2010-04-18 00:51 Foo Fighters - February Stars.mp3 -rw-r--r-- 1 jon jon 4994903 2010-04-18 00:51 Foo Fighters - Hey, Johnny Park!.mp3 -rw-r--r-- 1 jon jon 4649556 2010-04-18 00:52 Foo Fighters - Monkey Wrench.mp3 -rw-r--r-- 1 jon jon 5216923 2010-04-18 00:51 Foo Fighters - My Hero.mp3 -rw-r--r-- 1 jon jon 4294291 2010-04-18 00:52 Foo Fighters - My Poor Brain.mp3 -rw-r--r-- 1 jon jon 6778011 2010-04-18 00:52 Foo Fighters - New Way Home.mp3 -rw-r--r-- 1 jon jon 2956287 2010-04-18 00:51 Foo Fighters - See You.mp3 -rw-r--r-- 1 jon jon 2730072 2010-04-18 00:51 Foo Fighters - Up in Arms.mp3 -rw-r--r-- 1 jon jon 6086821 2010-04-18 00:51 Foo Fighters - Walking After You.mp3 -rw-r--r-- 1 jon jon 3033660 2010-04-18 00:52 Foo Fighters - Wind Up.mp3 The folder "(1997-05-20) The Colour and The Shape" would have its timestamp set to 2010-04-18 00:52. Thanks in advance!

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Pass --nogpgcheck to yum via puppet

- by quickshiftin

How would one get a --nogpgcheck option to yum via puppet? I've tried package { 'unsigned-package': ensure => latest, install_options => ['--nogpgcheck'], } and package { 'unsigned-package': ensure => latest, install_options => ['nogpgcheck'], } but looking at the output from an agent run, yum isn't getting that option. As an aside (and maybe the reason it's not working for me), how do I verify my puppet has the install_options feature? I'm running puppet 3.3.0-rc2.

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Portable server room air-con options

- by Bridgette

We are looking for portable industrial aircond for our server room which whould blow hot air to the sealing cavity, split-system is not an option (http://www.ikoo.com.au/Aircond.png). Something exactly like this would be ideal, but unfortunately not available in AUS: http://www.apc.com/resource/include/techspec_index.cfm?base_sku=ACPA4000&ISOCountrycode=us http://www.apcmedia.com/salestools/ASTE-6Z2RUU_R1_EN.pdf. So we pretty much looking for competing products to the APC's NetworkAIR PA4000 available in AU. ? We currently have 3 x DeLonghi Penguino PACT120, but space is limited and getting more of these is prob not ideal.

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Options for an SFTP server on a Windows Machine

- by Hythloth

We have a client who wishes to send files to us via SFTP (citing that FTP is inherently insecure). We have a Windows Environment (Windows 2003 Server). Currently, I'm reviewing copssh (OpenSSH for Windows, http://www.itefix.no/i2/copssh), and am looking for alternatives, or thoughts on copssh or any other SFTP option for Windows. The simpler to setup and administer, the better. I have never setup an SFTP host, before, so I'm curious what you all would recommend.

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Virtualbox Headless Server on Ubuntu missing VRDP Options

- by The Daemons Advocate

I'm running VirtualBox headless server on an Ubuntu 64 bit host, and I want to use it remotely. However, I'm having problems connecting via RDP. The DNS names in my network show the host to be 'server', and the guest to be 'ubuntu-vm'. From the official documentation, I gather that I am to connect to server on the default RDP port in order to see the guest machine. I start the virtual machine like so: vboxheadless -startvm My_VM Then I connect on my laptop, and I get... rdesktop -a 16 server ERROR: server: unable to connect So next I consult the documentation further, and I find there are RDP flags that can be turned on (but should be on implicitly for a headless server). So I pull up information using 'vboxmanage showvminfo My_VM', and I find the VRDP property is off. VRDP Connection: not active To make things even weirder, RDP flag seems to be missing from vboxmanage. I've installed straight from the ubuntu repo's using the virutalbox-ose package, not sure how that measures up against the official docs. For instance, this command doesn't exist: VBoxManage modifyvm My_VM --vrdp on From the UI, the VM's Settings regarding Display have greyed out the 'remote Display' option. What I'm looking for is advice :). I'm open to suggestions that don't involve starting again with something like VMWare. Thanks in advance!

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RAID options for a LAMP web server

- by jetboy

I'm due to set up a LAMP web server with four drives and a RAID controller to act as a web server. The drives are 146Gb SAS, and the machine has two quad core processors and 16Gb RAM. There will be very few write operations to the MySQL database, and I'll be using as much caching as possible to reduce disk I/O. Question is: Would I be better off splitting the drives into two RAID 1 arrays, splitting up sequential and random disk I/O, or would I get better overall performance putting them all in a single RAID 1+0 array?

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Options for a site-specific-browser app

- by cbp

I would like to have our intranet site accessed through Firefox or Chrome, rather than IE. However we don't want users having access to any other internet sites apart from our intranet, unless they are using IE. I notice that Chrome has what they called 'Hosted Apps' and there is a Firefox spinoff called Prism. Does anyone know whether either of these are suitable? Can you install a Chrome hosted app without giving the user access to other sites through Google Chrome? What about Prism? Are these products stable?

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Socket options for a tcp server with 3G clients & frequent disconnections

- by Joel

I have a TCP server, written in java, sending and receiving many short messages, from 500 bytes to 100 KB long. It's a chess game and chat server, to make it simple. The server is running Debian 6. Half of the clients are connecting from 3G networks, and half over standard DSL. A portion of the 3G clients lose connection pretty often. The error I get on the server and on the client socket is Connection reset. I have come across this page at Oracle documentation: socketOpt. I am wondering what I could tune there to lower the number of disconnections from 3G clients. I don't mind about the ping or transfer rate, but just about the TCP disconnections. I am not skilled enough to understand the impact of each setting, but I sort of understood that the TCP window was important, although I don't know exactly how. So I'm asking if anyone here has an idea ? Thanks if you can help.

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Dicom: What are my options?

- by Peter Turner

After a cursory Googling, I can't find a legitimate list of DICOM vendors. I've tried DCM4Chee, Conquest, and PacsOne. Each server seems to have it's own quirks and annoyances, memory leaks, etc... I'd like to see what people use for their DICOM servers. Usually Wikipedia would have something like this at the bottom of the article, but it doesn't so I'm wondering if the SF community can create a canonical list. I must admit that whereas I do not represent any DICOM server vendor. There is a guy in my office who will buy me a huge burrito for each DICOM server I successfully install.

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Windows 7 libraries and folder redirection nightmare

- by Lobuno

Hello! In our active directory we deploy a policy to our clients where the personal directory (My documents) is redirected to a file server of ours \server\share\username\Documents In older systems everything worked fine. in Windows 7 some users are experimenting the following symptoms: The Documents library is EMPTY Where the documents library should be shown in Explorer an empty white icon is displayed. No caption. Right clicking in the Documents library to edit the folders that are part of the libraries brings the dialog up. However, that dialog is unusable. No folder is present there and clicking Add folder does nothing. Deleting the library and auto-creating it doesn't solve the problem The shared directory can be accessed via UNC paths and it can be mounted as a shared drive as well. The library is still broken. The shared drives are on a W2008 indexed server... Using the Windows Library tool utility doesn't solve the problem. What can the cause of this problem be and how can this be solved?

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Windows 7 libraries and folder redirection nightmare

- by Lobuno

Hello! In our active directory we deploy a policy to our clients where the personal directory (My documents) is redirected to a file server of ours \server\share\username\Documents In older systems everything worked fine. in Windows 7 some users are experimenting the following symptoms: The Documents library is EMPTY Where the documents library should be shown in Explorer an empty white icon is displayed. No caption. Right clicking in the Documents library to edit the folders that are part of the libraries brings the dialog up. However, that dialog is unusable. No folder is present there and clicking Add folder does nothing. Deleting the library and auto-creating it doesn't solve the problem The shared directory can be accessed via UNC paths and it can be mounted as a shared drive as well. The library is still broken. The shared drives are on a W2008 indexed server... Using the Windows Library tool utility doesn't solve the problem. What can the cause of this problem be and how can this be solved?

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Unix Permissions issue with users belonging to the same group accessing a folder

- by TK Kocheran

I have a folder I'd really like to allow another user on this machine access to. I'm using mt-daapd to serve music to the network, so I'd like to enable the mt-daapd user to access my Music directory, /home/rfkrocktk/Music. The master user is rfkrocktk obviously. I've tried to set all of my permissions properly on the directory, but the mt-daapd user can't acces the files. I created a group called media-users and added both rfkrocktk and mt-daapd to it in order to give mt-daapd permission to simply read all of the files in that directory and subdirectories. If I run id on each of my users, here's what's displayed: $ id rfkrocktk > uid=1000(rfkrocktk) gid=1000(rfkrocktk) groups=1000(rfkrocktk),4(adm),20(dialout),24(cdrom),29(audio),46(plugdev),104(lpadmin),115(admin),120(sambashare),124(vboxusers),1001(jupiter),2002(media-users) $ id mt-daapd > uid=123(mt-daapd) gid=65534(nogroup) groups=65534(nogroup),2002(media-users) It definitely seems that both users are a part of the media-users group, so what could be going wrong? If I run ls -l on the actual Music directory to see its permissions, here's the output: drwxr-Sr-- 201 rfkrocktk media-users 12288 2011-01-13 12:26 Music If I run ls -l on the Music directory to get its children, here's the output: drwxr-Sr-- 3 rfkrocktk media-users 4096 2010-12-20 15:31 2DBoy drwxr-Sr-- 3 rfkrocktk media-users 4096 2010-05-25 12:50 ABBA drwxr-Sr-- 3 rfkrocktk media-users 4096 2009-12-28 15:19 Access Denied drwxr-Sr-- 10 rfkrocktk media-users 4096 2009-12-28 15:19 AC-DC drwxr-Sr-- 3 rfkrocktk media-users 4096 2009-12-28 15:19 Aerosmith drwxr-Sr-- 3 rfkrocktk media-users 4096 2010-06-04 10:45 A Flock of Seagulls drwxr-Sr-- 4 rfkrocktk media-users 4096 2010-05-28 18:13 Alestorm drwxr-Sr-- 3 rfkrocktk media-users 4096 2010-06-22 23:29 Amon Amarth drwxr-Sr-- 5 rfkrocktk media-users 4096 2009-12-28 15:19 Anberlin ... From this, it would seem that I should be able to access the folders from mt-daapd, but I can't. Running sudo -i -u mt-daapd ls -l /home/rfkrocktk/Music displays nothing, indicating to me that for whatever reason, mt-daapd doesn't have access to read the folder. What am I doing wrong?

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Options to optimize lotus notes 8.5.X

- by Jakub

Has anyone found actually useful optimization methods for the bulky, fat, eclipse giant, nuissance that is Lotus Notes 8.5? I want it to be fast, and not eat up system resources like crazy while I run it ALL day (as it is my company's corporate mail / cal / scheduling solution). I've tried various hacks for the JVM heap size (if I recall correctly). None really bring a performance improvement. I have a dual core cpu, if that helps (I tried going the route of optimizing JAVA for 2 cores in hopes it would work, but seen no speed improvement). Notes is just sooo bloated, anyone have any suggestions to optimize/mod this thing so it is more responsive and less of a resource hog. Note: I don't want to switch to the web version, or the standard stripped down versions, I am aware of those, I just cannot since we don't run those internally for the company.

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Deleting files in the windows installer folder

- by qw3n

How do you clean up the windows/installer folder on a xp machine. I looked on different forums, but the tool many mention is no longer officially supported and from what I understand not specifically for this task. Also, I was confused on which tool to use or how to use it. The reason I ask this is I have an older computer with ~86gb drive and ~80gb of is being used by the windows/installer. I'm assuming that at least some of these are glitches and shouldn't be in there. Note that the person who uses the computer mentioned trying to interrupt an install at some point and I don't know if this has anything to do with it. Also, there are not that many programs installed on this computer ~25. Also, I know that similar questions has been asked several times already, but the accepted answer Is it safe to delete from C:\Windows\Installer? is mainly talking about is it safe to delete (along with most of the duplicates). I'm asking how to find and delete the files that shouldn't be there especially since were not talking 5-10gb but something that practically fills the entire hard drive, and for those who are wondering I ran CCleaner, but it doesn't seem to check this folder.

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Default Gateway solution on NAT'd network (best options)

- by kwiksand

I've recently changed a network from a bunch of machines exposed to the net on a network to a more security conscious Firewall-fronted network with a DMZ for public services. Everything's mostly working perfectly now, but I've got the old problem of NAT Loopback where a machine within the LAN wants to access a public service via the public/external IP. I've solved this problem previously in a small/SOHO environment simply using NAT loopback features of the router in use or a simple iptables rule to do the same, but I want to make sure I make the most resilient choice with the least concern. It seems I can: Use iptables as I've said to DNAT and MASQUERADE the change source/destination so the connection works correctly i.e iptables -A PREROUTING -t nat -d ip.of.eth0.here -p tcp --dport 8080 -j DNAT --to 192.168.0.201:8080 iptables -t nat -A POSTROUTING -s 192.168.0.0/24 -p tcp --dport 8080 -d 192.168.0.201 -j MASQUERADE Use split DNS, with internal mappings for public IP's Potentially do some route nastyness by setting the Default Gateway to use a different externally exposed IP to then come back in the public route (messy) Someone mentioned putting the Default Gateway within the DMZ as well (on serverfault), but I can't find the post again. I'm sure this is a common issue for many with NAT'd networks, but I've not really seen the perfect solve all when it comes to fixing this problem. What is your opinion?

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Options for installing software on Amazon EC2 Windows instances

- by gareth_bowles

I've been running Linux servers on Amazon EC2 for a while now; the experience has been great. I've recently needed to bring up a Windows server to run some Windows-only software that our product needs to use, and am running into a problem figuring out how to install the software, which is only available on DVD. With Linux I can just install packages from a Web-based repository and take advantage of EC2's fast network throughput, but so far on the Windows instance I've had to upload my ISO images to EC2 and mount them from the Windows EC2 instance. For some reason I'm getting really slow upload speeds to EC2, even though the regular upload speed from our office is pretty good (around 7Mbps). I've also tried mounting the DVD drive on my machine as a local drive on the EC2 instance via Remote Desktop, and then running the software install from the local drive, but I run into the same slow upload speed issue. Does anyone have a better way to install software from physical media onto an EC2 instance ?

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Options for EC2 ec2-create-snapshot and family

- by shabda

I am trying to use the various tools provided by ec2-ami-tools Eg, ec2-create-snapshot -h .... -K, --private-key KEY Specify KEY as the private key to use. Defaults to the value of the EC2_PRIVATE_KEY environment variable (if set). Overrides the default. -C, --cert CERT Specify CERT as the X509 certificate to use. Defaults to the value of the EC2_CERT environment variable (if set). Overrides the default. -K and -C are two required values, and I cant understand what values are these expecting? If I create a Keypair from Elasticfox, I get only one file to download and a fingerprint. So which of this need to get where?

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Very slow browsing shared folder XP client/host

- by Ickster

I have a pretty straightforward setup where I'm storing media files on an XP pro machine, and sharing the folder to be accessed by other XP pro machines around the house. (Typically, there's only one client accessing the share at a time, although there may be several with the share mounted.) It's been working just fine for years, but I've recently started having some problems. A couple of days ago, the host PC had power disconnected while it was running. It was restarted and everything seemed fine initially, but since then browsing the shared folder from client machines has been extremely slow and actually reading data is all but impossible. The problem exists in every access method I've tried: Windows Explorer, VLC dialogs, command line, etc. My first thought was that the disk was experiencing problems, but there are no problems viewing the files locally on the host machine. My second thought was that there was a network problem on the host machine, so I removed and reinstalled drivers for the NIC with no change. My third thought was that there might've been a problem elsewhere on the network, so I swapped out hardware to no avail. I'm regrouping and trying to come up with a methodical approach to figuring out what might be wrong. I would of course be thrilled if you can suggest specific problems (Microsoft KB articles, etc.) that I might check, but I'm not expecting a silver bullet. If you can help me outline an approach to identify the problem (including recommended tools, e.g., disk checkers, network analyzers, etc.) I'd greatly appreciate it.

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What are the best options for a root filesystem hosted on SSD under Linux

- by stsquad

I'm working on an embedded system which is going to be booting and hosting it's rootfs on an SSD disk. We are currently looking at using Intel X-18M SSDs. The file system structure will have a fairly static /usr section (modulo software upgrades) and an active /var and /var/log for maintaining state and logging. Given the wear-levelling done by the underlying flash does having separate partitions help or hinder? As modern SSDs appear as straight block devices and hide their mapping magic behind their firmware is there any point trying to optimise the choice of file-system that sits on-top of the SSD? Finally does enable SMART monitoring make any sense in this context or are their SSD specific ways of determining the underlying health of the storage hardware?

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remotely running find -exec options

- by Michael Merchant

I'm trying to setup a bash process for deploying my django project onto a linux server. Through cygwin, I'm running a script that is calling scp to copy my files over. Is there a similar command to delete *.pyc files. As of now, I've only been able to accomplish this locally after using ssh with: find . -name "*.pyc" -exec rm -rf {} \; I'm looking for some kind of command to call remotely that would be equivalent.

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passing on command line options in bash

- by bryan

I have a question. I have a script, a kind of long script written in bash aprox. 370 lines. That has several functions and in those functions the user has to enter information which is then stored in files. ( This is suppose to represent a MySQL database, with the functions INSERT, UPDATE, SELECT, SELECT where x=y.) I created this myself in bash, now the only thing that rests me is that I need to be able to pass arguments on the command line to the script, that will do the same as the script does. I know that bash has positional parameters such as $1 $2 $3 $* $@ $0 ( refers to the name of the script) etc. I know how I can use these parameters in a simple if function. This is not enough for my script. I basicly need to do the same thing that the script does, but then from the command line. I have been struggling with this for a couple of days now and I cannot think of a way to get it to work. Maybe someone here can help me with this? If you want to have the script. That can be possible, but I don't think I can paste it in here... EDIT: Link to script, http://pastebin.com/Hd5VsDv2 Note, I am a beginner in bash scripting. EDIT: This is in reply to Answer 1. As I said I hope I can just replace the if [ "$1" = "one" ] ; then echo "found one" to if [ "$1" = "one" ] ; then echo SELECT where SELECT is the function I previously had in my script(above) http://pastebin.com/VFMkBL6g LINK to testing script

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Chat client/server that offers certain options.

- by MrStatic

A few friends of mine and including me for the past few years have hosted an irc server on one of our dedicated servers. We use it for just personal reasons. We like the aspect of it that it allows private messages and chat rooms. Plus the ability to send/receive files and is cross platform (Linux/Mac/Windows/Mobile). Our domain is about to expire and we are looking to move onto something new. So we are looking for a chat client / server that offers the following: Chatroom (multiple people chatting together in the same box) File transfers Private messages Cross Platform (especially mobile ie: Blackberry and Android) We don't have to host it but that isn't out of the question Logging on the client side (we say a lot of crap and like to go back and quote said crap) SSL/TLS Some sort of encryption some of the stuff said/sent is of a sensitive nature ie: business nature

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network boot options hosted on windows (xp or 7)

- by Crash893

I'm looking to setup a quick and dirty network boot server to install xp on a beatup laptop that has a bad cdrom but the option to "network boot" (compaq pasario 700) 1) what is the diffrence between pxe and Ris 2) which one is most likely to be the one used on the laptop mentioned above 3) is there a windows program to run a boot server 4) what files will i need to have can i jut use the cd or do i need to rip it to files or and iso? thanks Rob

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Network Diagramming software options?

- by Zak

I've used The Dude to map my network, but I can only export the network map as a graphics file. I've also used Dia and Vision to manually diagram portions of my network. Does anyone out there have a solution where I can do automatic network mapping using a tool like "The Dude", then pull that file over to a manually editable format for cleaning up and/or enhancing in Visio or Dia?

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Break all hardlinks within a folder

- by Georges Dupéron

I have a folder which contains a certain number of files which have hard links (in the same folder or somewhere else), and I want to de-hardlink these files, so they become independant, and changes to their contents won't affect any other file (their link count becomes 1). Below, I give a solution which basically copies each hard link to another location, then move it back in place. However this method seems rather crude and error-prone, so I'd like to know if there is some command which will de-hardlink a file for me. Crude answer : Find files which have hard links (Edit: To also find sockets, etc. that have hardlinks, use find -not -type d -links +1) : find -type f -links +1 A crude method to de-hardlink a file (copy it to another location, and move it back) : Edit: As Celada said, it's best to do a cp -p below, to avoid loosing timestamps and permissions. Edit: Create a temporary directory and copy to a file under it, instead of overwriting a temp file, it minimizes the risk to overwrite some data, though the mv command is still risky (thanks @Tobu). # This is unhardlink.sh set -e for i in "$@"; do temp="$(mktemp -d ./hardlnk-XXXXXXXX)" [ -e "$temp" ] && cp -ip "$i" "$temp/tempcopy" && mv "$temp/tempcopy" "$i" && rmdir "$temp" done So, to un-hardlink all hard links (Edit: changed -type f to -not -type d, see above) : find -not -type d -links +1 -print0 | xargs -0 unhardlink.sh

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