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• Platform to allow users to suggest and vote for ideas

  - by Simon

  I head up a support team for a software product. I am in the process of setting up a blog (Wordpress.org), a forum (PHPBB or maybe Vanilla), a means to view bugs (probably expose Jira), but would also like to allow our customers to suggest enhancement requests. Currently we have this as a 'contact form' via the blog, which feeds into a dedicated inbox, which the product manager reviews and may include some of these ideas into the product. However, I would like to give the clients more power/visibility over this. Have a look at ideas.arcgis.com. There are plenty of other similar sites as well. Users can suggest new ideas Other users can vote these ideas up or down (similar to Stack Exchange sites) Ideas that are voted highly will be given a higher priority over lower ones. We can report back on the # of ideas we implement, and potentially reject ideas with reasoning. Has anyone seen any platforms (ideally free) which would replicate something similar to this? I was half thinking of embedding Vanilla within a wordpress page, but need to look into it more.

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• Windows 7 breaks even in safe mode

  - by delenda

  Hi, I have a Dell XPS M1730 with Windows 7 installed. I noticed last night that after a few hours of use, the fans kicked into full and I couldn't do anything without it taking forever. Minimising windows, opening device manager or even opening process explorer took minutes and a game install I had just started took nearly 4 hours to complete. When procexp finally loaded, the refresh was so slow that it was mostly useless. From what I could gather, it was reporting 60% idle processes with procexp using nearly 40%. There were no hardware interrupts listed. When I rebooted, the problem went away for about 10 minutes and then the same thing happened. The issue persists in safe mode and even after I removed the graphics drivers, which have been an issue in the past, it still happens. Icons flash quite quickly on the desktop periodically and screen refresh is painfully slow. When booting now, the fans kick in to full as soon as the windows logon box comes up and it's taking 10 minutes to bring the desktop up. Chkdsk reports nothing and the raid check says that everything is fine. I'm thinking hardware failure, probably HDD but wanted some other opinions. I'm planning to try a linux live cd to see if it works without using the hard disks. If anyone has any input, it would be greatly appreciated. Delenda

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• Microsoft Deployment Toolkit 2012 Error

  - by Jacob Schaer

  I just started with MDT2012 recently in hopes of eventually getting away with using Ghost to deploy all of our department computers. When I test deploy in VirtualBox, it deploys the OS properly, but stops because of a network driver failure (it gets the "could not allocate resources" issue). On physical hardware (Latitude E6500, Optiplex 980, and an older Latitude) it gets through the multicast and stops immediately after with: "Setup was unable to create a new system partition or locate an existing system partition. See the Setup log files for more information" I've looked at the logs and never see anything really of note. Originally I was using DriverPacks from DriverPacks.net, but thinking it was a driver issue, I switched over to using Dell's cab driver packs. Still the same issue. I check and it did the HDD is all fine - it was properly partitioned, set to bootable, and was loaded with all the proper OS installer files. I'm using a flash drive to do the install - when I make changes to the deployment share I rebuild and copy the ISO to the drive, then use YUMI multiboot to start the ISO (probably irrelevant).

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• 2012 R2 services will not start after promotion to Domain Controller

  - by Cybersylum

  Having a peculiar issue promoting a Windows 2012 R2 server in a domain at 2003 domain/forest functional level. Built a new 2012 R2 server, added the following software (labtech, appassure, eset A/V, & Teamviewer). It activated and appeared to be working fine. I added the Active Directory Domain Services role, and completed the configuration (Domain/Forest Prep, and DC promotion). All appeared to go well. I rebooted the server, and that's where the peculiar stuff began. I noticed the server indicated it needed activated again; but would not accept the key. I verified the key was good. That's when I noticed the Software Protection service (as well as many other core services - Base Filtering engine, DHCP client, firewall, etc) would not start. The error message for all of them was "Access Denied". I called MS, and they wanted to troubleshoot at a service level. Their fix was to use procmon and identify the resource that needed permissions (registry key, file or folder) and add "everyone" with full control). That got the services to start; but the problem re-appeared after a reboot. Thinking the issue might have been with the anti-virus package during the promotion process, I rebuilt the DCs from scratch and removed the metadata from AD (as I could not demote the machines "rpc server unavailble"). I tried to promote the newly built machines again. The only changes to the brand new machines being critical updates. Again the promotion appeared to work fine; but upon reboot (and a long wait to allow replication to occur) similar problems began to re-appear. I have verified that the schema updates are correct (schema version is 69 - for Windows 2012 R2). I am not finding much about this issue through my own searches, so I thought I would post this to see if anyone else has seen anything similar...

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• Trying to retrieve data with a thermaltake blacX enclosure: Windows 7 believes the drive to be "uninitialized"

  - by Peeter Joot

  I have a laptop that won't boot. It appears to be a power problem ... laptop auto-turns-off within about 10 seconds of pressing the power button (with power buttons lighted temporarily and no display with or without external monitor). I've followed the dell troubleshooting guide which suggested reseating the memory modules and the hard drives, but that didn't help. Before trying to have the laptop serviced, I wanted to get some data off off the hard drive. I bought a thermaltake blacX enclosure, intending to use this to both use to retrieve the drive data with, and then later use as external storage. Following the instructions (insert cables, insert drive power on) goes fine, and Windows 7 on another laptop installs the device driver software. However, no drive letter shows up in 'Computer'. Under Computer-manage-storage I see the drive is there, and there's an option to "initialize" the drive. The Windows "initialize" dialog gives me the option to pick between "MBR" and "GPT" partitioning, which sounds like a good way to destroy the data on the drive. I'm thinking that I've purchased the wrong device for the job (or that my old drive is damaged). The old drive to recover info from is a Western Digital 500G/7200rpm SATA drive if that is relavent. Both the original laptop and the one I'm using for recovery are running Windows 7. Does anybody have experience with using a blacX enclosure to recover data off an already formatted drive?

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• Installed Windows 7 Ultimate on D Drive and previous Windows 7 Enterprise on C Drive has stopped starting up

  - by teenup

  Please please help! I have installed Windows 7 Ultimate on same hard drive on D Drive on my laptop and the previous Windows 7 Enterprise which was installed on C Drive is not booting up now. When I turn on my laptop, I see two Windows 7 on the screen, when I select newer one, it starts, but when I select older one which is Enterprise edition, system won't start and I get the DOS black screen with this error message: Windows Boot Manager Windows failed to start. A recent hardware or software change might be the cause. To fix the problem: Insert your Windows installation disc and restart your computer. Choose your language settings, and then click "Next." Click "repair your computer." Info: The boot selection failed because a required device is inaccessible. I notice that when I run the newer OS installed, the previous OS's drive (Which is D: now instead of C:) has become unusable and when I double click it, it asks me to format the drive. The data, that I had on my D Drive (Which is now C Drive for new OS), I had copied it to a network path and it is available. It was containing Windows 7 Users folder which I copied at that time when installing new windows. I have copied that Users folder again to the new OS's C Drive thinking it would run again, but of no use. Please please please...if someone can help...It is extremely required for me. Thanks a lot in advance.

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• INSERT DELAYED on locked tables blocks PHP processes to continue

  - by sw0x2A

  Our webservers write some tracking information into a MySQL database (using INSERT DELAYED into MyISAM table). When a huge SELECT query is executed on this table or when it is locked for another reason, the webserver processes (with INSERT DELAYED) are waiting for the database and in some cases the MaxServer limit is reached in Apaches, so they will stop serving requests. We use INSERT DELAYED because The DELAYED option for the INSERT statement is a MySQL extension to standard SQL that is very useful if you have clients that cannot or need not wait for the INSERT to complete. This is a common situation when you use MySQL for logging and you also periodically run SELECT and UPDATE statements that take a long time to complete. Quote from MySQL documentation. I am wondering why the Apache processes are waiting for the INSERT DELAYED to finish. And what can I do to just send the data and forget about it. (Since this is logging data, I do not care if we lose some entries.) Even when the table is locked the PHP script should just go on and should not wait for an answer of MySQL. (We do not want to setup Master-slave for this table but we are thinking about move this data to some NoSQL database. But for now I would like to know why INSERT DELAYED is not working as expected.)

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• iptables: How to combine DNAT and SNAT to use a secondary IP address?

  - by Que_273

  There are lots of questions on here about iptables DNAT/SNAT setups but I haven't found one that solves my current problem. I have services bound to the IP address of eth0 (e.g. 192.168.0.20) and I also have a IP address on eth0:0 (192.168.0.40) which is shared with another server. Only one server is active, so this alias interface comes and goes depending on which server is active. In order to get traffic accepted by the service a DNAT rule is used to change the destination IP. iptables -t nat -A PREROUTING -d 192.168.0.40 -p udp --dport 7100 -j DNAT --to-destination 192.168.0.20 I also wish all outbound traffic from this service to appear to come from the shared IP, so that return responses will work in the event of a active-standby failover. iptables -t nat -A POSTROUTING -p udp --sport 7100 -j SNAT --to-source 192.168.0.40 My problem is that the SNAT rule is not always run. Inbound traffic causes a connection tracking entry like this. [root]# conntrack -L -p udp udp 17 170 src=192.168.0.185 dst=192.168.0.40 sport=7100 dport=7100 src=192.168.0.20 dst=192.168.0.185 sport=7100 dport=7100 [ASSURED] mark=0 secmark=0 use=2 which means the POSTROUTING chain is not run and outbound traffic leaves with the real IP address as the source. I am thinking I can set up a NOTRACK rule in the raw table to prevent conntracking for this port number, but is there a better or more efficient way to make this work? Edit - Alternative question: Is there a way (in CentOS/Linux) to have an interface that can be bound to but not used, such that it can be attached to the network or detached when a shared IP address is swapped between servers?

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• Ubuntu + LigHTTPd: Server requests taking ages

  - by ctrl_freak

  I've had an issue since upgrading my distro a couple of weeks ago from hardy; receiving data after making a request has increasing intervals of nothing, as you can see from the picture below. http://i49.tinypic.com/2w5lvr9.png I have since reinstalled fresh from an Ubuntu 10.04 Server (i386) disk, but am still having the same issues. I'm running on a LigHTTPd, MySQL, PHP5 stack. The surprising thing is, that local browsing using lynx is super fast, as expected. Initially, after reinstalling, I copied over the old configuration files from the previous installation, but have since reinstalled LigHTTPd and rebuilt the config file from scratch. The only correlation I could find, was that I attempted installation of ionCube and Zend Optimizer for a script I was testing, however I would think that it could no longer impact seeing I had reinstalled the OS. I have also removed Suhosin just in case, however it had no impact. I'm thinking it possibly has something to do with networking, but I wouldn't know where to start. The server is manually assigned an IP by it's MAC address on the router. The fact that the time seems to be exponential (to a point) worries me. I've tried strace'ing the LigHTTPd and MySQL processes, however I couldn't see anything obvious, not that I'd really know what I'm looking for. RAM and CPU usage don't seem to be out of the ordinary, but I can't say its perfect.. I'm hoping someone has experienced the same, or can point me in a direction, as searching has proved fruitless as I don't know anything specific. Config files can be posted, if requested.

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• Locked out of our Comcast Business Gateway for seemingly no reason

  - by Tyler

  A little backstory... Last fall we migrated our ISP from AT&T to Comcast at one of our offices. At that time, we received a new modem/router from Comcast and we configured everything to our liking. We've never really had very many issues with the router aside from having to restart it every once in a while. Here's the problem... About three months ago I changed the password on the router from the default. After that, I logged into the router several times to make changes with no issue. During May I logged into the router to add two new static routes, no problems. A week ago, I tried to log into the router and could not. I tried the non-default password that I changed it to, the default, anything and everything I could think of and no luck. I restarted the router on Monday thinking it may just be locked up, but after the restart it would still not let me log in. This router is at our other office about 2 hours from here and I want to avoid having to drive down there and reset to factory defaults, reconfigure, etc. Any ideas?

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• Log connections to program

  - by Zac

  Besides for using iptables to log incoming connections.. Is there a way to log established inbound connections to a service that you don't have the source to (suppose the service doesn't log stuff like this on its own)? What I'm wanting to do is gather some information based on who's connecting to be able to tell things like what times of the day the service is being used the most, where in the world the main user base is, etc. I am aware I can use netstat and just hook it up to a cron script, but that might not be accurate, since the script could only run as frequently as a minute. Here is what I am thinking right now: Write a program that constantly polls netstat, looking for established connections that didn't appear in the previous poll. This idea seems like such a waste of cpu time though, since there may not be a new connection.. Write a wrapper program that accepts inbound connections on whatever port the service runs on, but then I wouldn't know how to pass that connection along to the real service. Edit: Just occurred to me that this question might be better for stackoverflow, though I am not certain. Sorry if this is the wrong place.

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• does leaving the laptop cord in break the cord?

  - by firedrake

  i recently got a new cord for my laptop because the cord i had before broke.im not sure how it got messed up, but one moment it charged my laptop and the next moment it didn't. i then got a new cord. the new cord worked perfectly fine until now, and it has only been a month. the cord wont work unless i am pressing it into the socket, which i am currently doing. the only thing i can find in common with the cords is that i leave them plugged in 24/7. my brother says that is the problem, but i do not think it is.any tips or hints? im going to use duct tape to keep the pressure on the cord till i can find a better solution(im also thinking it could be the hole i plug it into on the back of my computer, but im focusing on the other idea for now.if i wiggle the plug part in the socket of my computer it will stop charging unless im pressing it in or to the side) any help or ideas are appreciated. not sure if this will help but i use a gateway with windows vista. thanks

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• Did my hard drive fail or is it something else?

  - by Julian

  Last night while I was watched a movie on my laptop the external monitor just went blank and the built-in display froze. Weird I thought, so I restarted it only to be greeted with this heart-breaking message. "No Operating System Found". After a few panicked restarts I accepted the fact that my hard drive might be done :(. Being the resourceful technie that I am, I whipped out Ubuntu Live on my old Flash Drive and was up and running before day break. I cannot access the hard drive through Ubuntu (which I expected) but I also cannot access my DVD drive either! This got me thinking that it might not be the hard drive and some other component that they hdd and the dvd uses. Hopefully this is the case. Which component is the most likely culprit? What tools can I use from Ubuntu Live on my USB flash drive to find out? I'm in a bad place without my hdd, thanks in advance for any assistance provided! P.S. My laptop makes a weird noise when I try to access or eject my DVD within the slot. Also my HDD makes a weird noise sometimes. Not sure how to describe it. System Specs: Dell 1558

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• Assembly Level Language? Unlock iPhone 3GS with latest Baseband. Need Opinion

  - by getkenny

  Hi Guys, So its more like advice i need. I got 2 iPhone 3GS (Bootloader 06.02 and BB 05.11) which are lying around useless cause it was bought it from US and now i am in Dubai. Cannot use the phone because there is no unlock. Now rather than waiting and relying on other people to provide a unlock for the baseband , i was thinking of learning what it takes to unlock a iPhone. I currently don't even know what i got to learn to do this. I understand from soem reading around that i will need to learn ARM to understand the baseband and try to find a exploit: is it correct? I really want to help people out in getting their iPhones working. Also the iPhones cost was $645 each (16GB) so its not like Apple is going to loose any money of it, the person who bought it for me thought that if your not buying with an AT&T contract it means that it is unlocked but it is not true. I need help, i am willing to learn and you guys are the best bunch around to give me advice. Regards.

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• How to script GPO in Windows computers without Active Directory?

  - by Peteris Krumins

  Does anyone know how to script GPO for users in a Windows computer that is not on any Active Directory network? I can't use GPMC because it doesn't work without a domain. I have been searching the net for the last couple of hours and all the solutions that I find are related to GPMC. I'd imagine there are some objects in the GPO that are accessible via WMI? Does anyone know anything about that? I was unable to find any information about that. Here is the situation I am trying to script: I have 10 users on the machine, and I want to restrict what they are able to do on the machine. So I created 10 GPOs for each one of them. Now I want to apply a common policy to all of them. The only way to do it is to go through each of the GPO and do it manually. This is too time consuming, therefore I am seeking for a simpler solution. I was unable to find a way to copy GPO from a user to a user. That would make it much easier, I would create a GPO for 1st user, then copy it over to all the other users, but no luck, couldn't find a way to copy GPOs. The other method I tried was creating a GPO for the whole user group but it turns out you can't apply GPO to a group unless you use GPMC, which I can't cause the computer is not on any domain. So I am thinking about scripting this whole process, but again I can't find any examples of how to access particular GPO objects for particular users and modify properties through WMI. Any suggestions on the issue I am having? Thanks!

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• HP/IBM alternative to Buffalo iSCSI TerraStation?

  - by Robin Day

  I'm looking at virtualising some of our infrastructure in order to allow for more resiliance and future expandability. We have successfully virtualised on single servers with Direct Attached Storage and are now looking for a more future proof solution using a high powered host (or two) and a SAN (or two). I'm thinking that the host machine will probably be an HP ProLiant DL360 G7 (all of our exisiting infrastructure is HP). Unfortunately, I am new to the world of SANs. From what I can see, the Buffalo Terrastation III is all I would need in order to setup an iSCSI SAN for VMWare to use. However, I'm a little reticent to go that way as it's a bit too "entry level" for my liking. In particular I would be very keen for more redundancy, power, networking, etc. I'm also very aware that you "get what you pay for". Therefore, can anyone reccommend equivalents from the big boys? HP/IBM? I have searched high and low on the HP site and seen many options but am struggling to work out if it is all the hardware I will need. Some options appear to need separate controllers from disk enclosures, etc.

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• Why just splitting an Ethernet cable does not work?

  - by Sin Jeong-hun

  I thought the Ethernet is logically one-line communication bus (for argument's sake, I am excluding hubs). All machines attached in the bus hears the same signals and the machines themselves try to avoid collisions by randomly backing off. http://computer.howstuffworks.com/ethernet6.htm If so, why splitting one Ethernet line from my home router into two and connecting two computers would not work? Why do I have to add a switch to it? *What the Internet said would not work. [4 port home router] ------[one Ethernet cable]-----[simple splitter]======[two computers] *What the Internet said I should do [4 port home router] ------[one Ethernet cable]-----[switch]======[two computers] Is this because of the signal degradation (reduced electric current)? Thank you for all the answers! The reason why I did not just use the two ports of my home router is... The 4-port gigabit router is in my room and I had put a computer in another room (also my room, though). Since wired network is far more reliable and secure, I had bought a long Ethernet cable and and connected the computer to the router. Now I was thinking about adding another computer to that room. I could buy another long Ethernet cable, but then there will be two cables between the rooms. The one line already is a minor annoyance, so I thought if I could share the one line between the two computers in that room. A switch would work, but it requires power and is a little bit pricey. That is why I wondered why it would not work to simply split the physical Ethernet cable. Apparently I do not completely understand how Ethernet and a switch work. I just have some bit of knowledge I heard in my college class.

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• TCP/UDP hole punching from and to the same NAT network

  - by Luc

  I was wondering if tcp/udp hole punching would still work when you are in the same network (behind a NAT), and what the packet's path would be. What happens when using hole punching on the same network, is that it will send a packet out with the same destination and source address. Only the source and destination port would differ. I imagine a router with NAT loopback enabled will handle this as it should, but how about other routers? Would they drop the packet, or would a router (the first?) from the ISP bounce the packet back after which it gets handled okay? I'm wondering because I was thinking about using this technique to circumvent a block between peers in a network (like a school network where clients can only access the internet, but any contact with each other is blocked). The only other option is to use a man in the middle as proxy (tunnel?). The disadvantage of this is that you have to have a server with significantly more bandwidth than one that would only do hole punching. Also the latency would increase significantly.

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• Running WAMP (XAMPP) and LAMP from One SSD, On 64-bit Windows and Linux Machines

  - by nicorellius

  I have an solid state drive that I develop websites on. The reason I do this is because I work on a few different computers. Historically, I created separate developing environments to use for each machine. This was OK, but if the system changed for some reason, eg, new OS install, it was a pain. So I bought a USB 3.0 enclosure and put a solid state drive in there and it's pretty darn fast, which is good. I was working with three Windows machines and I could simply hook up the drive, launch my XAMPP server and away I went, developing websites: using Dreamweaver, Komodo, Notepad++, Eclipse, etc. Recently, however, one of my Windows machines' hard drive went down and instead of going back to Windows in this case, I went with Ububntu 12.04. I have several Ubuntu workstations and servers and I like Linux, so I thought his was a great opportunity to transition. I went to work installing and trying to set up a LAMP server and, besides from XAMPP 64-bit compatibility out of the box, I'm seeing other issues with getting this Linux server running. I will keep trying to resolve this, but in the meantime... my question is, has anyone ever successfully run both WAMP and LAMP from the same SSD (formatted to NTFS)? I'm sure there are lots of barriers to this happening, like local file system, OS libraries, dependencies, etc. But I was thinking it would be cool if it could be done. I'm no expert, so if this is just plain old stupid, please don't hesitate to let me know.

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• Transfer of ownership of Windows 7

  - by ziggy

  I am thinking of purchasing a copy of Windows 7 via either ebay or GumTree. I am unsure as to how the product key works. A close friend of mine is warning me against buying it from ebay as he is suggesting that once it has been used, the operating system registers itself on microsoft servers using the serial number of the motherboard of the system where it has been installed. This means once installed on one machine you wont be able to install it on another machine. Now i am struggling to believe that an operating system can only be installed on one machine. Can someone please explain exactly how this works. I can see a lot of copies being sold on Ebay which are used. I used the 'Ask a question' option and the majority of the users are saying that i should be able to use it. If someone buys Windows 7 from the shop, installs it on his PC but then decides that he wants to sell it can he not sell it? Will the person buying it not be able to use it? Does the person selling it have to somehow unregister it first? What do i need to look out for if buying it from Ebay? Thanks

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• NFS on top of GFS2 - does it work?

  - by Matthew

  We're currently using a NoSQL derivative called Splunk to receive our data. The software supports something called "search head pooling" in which the job-dispatching engine is housed on several servers which share a common storage point. Originally our intention was to use a clustered filesystem like GFS2 because of low latency, stability, and ease of setup. We set up GFS2, and it's working with no issues. However when trying to run the software, it's trying to create lock files, and a bunch of other things that their support team can't quite explain. Ultimate feedback from them was that they only support NFS. Our network administration team heavily frowns on NFS (lack of stability, file lock issues, etc). So, I was thinking about the possibility of setting up NFS on each server in the cluster to act as a wedge layer between the GFS2 filesystem and the software. Basically configure each server to export the GFS2 filesystem's mountpoint via NFS, and then tell each server to connect to that NFS share. That way we aren't introducing any single-points-of-failure should a dedicated NFS server go down, but the vendor gets their "required" NFS share. I'm just brainstorming ways around, so please tear this apart :)

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• Windows 7 automatically logs out when logging in

  - by Luke

  A Windows 7 HP x64 computer is set to automatically log in (no password), but once it starts logging in, it starts to load the desktop after the welcome screen, but before icons or background images are loaded, it goes to the Welcome screen saying 'Logging Off'. I can log in with Safe Mode, and I ran a couple different virus scans, with no detections. I also tried checking the userinit.exe file in System32 (as suggested by MANY users for Windows XP), but it's the same version as a working system. I also checked the registry under HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon for the SHELL and UserInit values, but they look normal. I tried to disable all startup items (through MSCONFIG) to select Diagnostic boot, but then I get a blue screen about the video driver not loading. Any other ideas? EDIT I created a new user, and it could log in no problems. I am thinking it's the NTUSER.DAT file. I just renamed it to NTUSER.DAT.old, then tried logging in as the problem user. I could log in, but as a TEMP profile. His profile folder is now C:\Users\TEMP, and his old folder is still accessible but in the wrong location. EDIT 2 I can't seem to turn off the TEMP profile, so I'm open to other suggestions. Copying the folders (i.e. Documents, Music, etc) does not work, as it creates an additional TEMP.000 then TEMP.001 folder each time the user logs in.

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• MBR seems to be gone

  - by bobobobo

  So, horror story for everyone. I bought two spanking new HDD's. MM!! Gbitage. I removed all my old HDD's, physically labelled them, and was preparing to install all new HDD's (fresh sys install included!) To make sure what HDD was what, I popped each OLD HDD (data filleD!) into a Thermaltake Blacx toaster.. surprisingly BOTH couldn't be read. I didn't have static on my hands! I'm certain of it. I touched metal, touched wood, before beginning this all. Thinking that was strage, I hauled up the new sys, installed Win XP (of course!) on the new HDD, and now the two OLD HDD's (data filled!) that were entered into the toaster cannot be read. And they had tons of data on them. I read about MBR's being nuked and it sounds like that is what it is. But I'm at a loss what to do. There are so many MBR recovery programs out there, I kind of feel overwhelmed. I don't want to lose my data by just pikcing one, yet it seems so close within reach, I'm not panicking anymore.. Anybody have a play by play that I could follow? I just don't want to spend $900 on data recovery centers if I can do this myself..

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• File corruption (bad checksums) in large files copied to VMware guest

  - by AllanA

  In setting up a development lab, I've got a desktop system running ESXi 4.1.0 (free license) on SATA RAID 0 (already purchased and configured when I started this job; I'm open to hardware input as it pertains to my problem.) Its guests so far include two Win2008 Server R2 64-bit VMs and on Ubuntu 10.04 64-bit VM. I'm installing onto the Windows servers. We've been copying off some fairly large files (over a gigabyte) for an installation, hoping to install more quickly from a (virtual) hard drive than from the network for from BD-ROM. The problem is that they keep coming up with different checksums from the originals. The file sizes are the same, but md5sum reports different numbers (and so does the installer, as it refuses to continue when the checksums don't match.) I've tried copying directly from the BD-ROM (attaching the OS drive to the host system's physical drive). I've tried copying the large files onto a co-worker's Windows machine from his Blu-Ray drive; when I do that, the checksums match. But when I copy from his machine to the VM guest over a network share, the checksums no longer match. Thinking this meant a corrupt destination drive, I deleted it in vSphere and added another freshly created drive. The problem persists. I'm not sure what to try next.

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• PHP potential issues with compiling 5.3.8 extensions against RHEL 6 / CentOS 6 PHP 5.3.3 package

  - by user101203

  I'm working on getting a Red Hat 6 LAMP server going and while the PHP that comes with it has many extensions we use, it doesn't have all of them. To solve this, I was thinking about either compiling the PHP extensions which come in the ext folder of the downloadable source code of PHP 5.3.3 from php.net same as #1, but using the extensions from the latest PHP version (currently 5.3.8). Do #1 but manually decide which updates to backport from the latest version of the PHP extensions into the older version and then compile the backported result A drawback to #1 is that security and bug fixes come out which we wouldn't be able to take advantage of. A drawback to #3 is that it might be a lot of work Does anyone know what the drawbacks to #2 are? I don't want to go down that route if it might result in some unexpected negative outcomes. Also, are there any other drawbacks to the other options or a better way to go altogether? I want to use the PHP 5.3.3 which comes with the Linux distro because I don't want us to get to a place again where we are forced to upgrade to a new version of PHP to stay on top of security updates like from PHP 5.2.x to 5.3.x and there be backwards incompatible changes (this is the situation we're in now with PHP 5.2.x no longer being supported).

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