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• Is there any way to recover a 2003 Exchange database without the domain controller?

  - by Jon

  I have access to the Exchange Server but the domain controller RAID card died and the restored backup causes the new server to reboot without even a blue screen. I have rebuilt a new domain controller and another Exchange server. What is the best way to migrate the data to the new Exchange Store from the old Exchange Server?

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• Wear and tear on server hard drive from filesystem polling by PHP script

  - by jackie

  So I'm working on a discussion platform, and various clients will visit http://host/thread.php, which will render the discussion thread to date in addition to a form to submit a new post. When a new post is submitted, I would like all of the other clients with browser windows open to have it appear in near-real-time. One of the constraints of my script is that it may not use a DBMS and it must stay in the filesystem. Additionally, I can't use any PECL/PEAR extensions like inotify or anything like that for IPC. The flow will look like this: Client A requests thread.php and the thread is so far empty, but nonetheless it opens a Server-Side Event at eventPusher.php. Client B does the same. Client A fills out a post in the form and and submits (POSTs) it to subHandler.php. ??? (subHandler stores the new submission into the main thread storefile which gets read from when a fresh, new client requests thread.php, in addition to somehow signalling to the continually-running eventPusher event-source that a new comment was posted and that it should echo the event-json to the client. How, exactly, it will send this signal I'm yet unsure of, but there are a few options that I've thought of -- this is the crux of the question, so see below for more clarification) eventPusher.php happily pushes the new event to the client and it shows up soon after it was originally submitted on all clients who have the page open's screens. Now for the #4 missing-link mystery-step, I see a few problems. I mean, either way, eventPusher is gonna be doing a while loop of some sort -- it's gonna be polling something, I think that much is clear. (If that's a bad assumption please do let me know.) Now, the simplest way would be subHandler gets invoked on the form submission, writes it to the main store in addition to newComments.xml, then exits without doing anything else. Then eventPusher checks in newComments.xml every X seconds (by the way, what would be a reasonable time interval here?) and if it finds something then it emits an event to the client. Now, my fear with this is that the server's hard drive will have to constantly start spinning up. Maybe this isn't the case, perhaps it would just get cached in RAM and the linux kernel would take care of this transparently such that filesystem access doesn't actually engage the device because the kernel knows that that particular file hasn't changed since last read. * idea #2: I have no idea how to go about this, but perhaps there is a variable scope that gets stored in general RAM on the system which can be read by any process. Like if we mega-exported a bash variable so that $new_post is normally false but it gets toggled to true by subHandler, and then back to flase once it's pushed to the client. I doubt there's such a variable scope in PHP directly, but I struggle with the concept of variable scope, I just can't seem to understand it no matter what I read on it. * idea #3: eventPusher queries ps in its whileloop for another instance of itself. If there's not another eventPusher active then it's highly unlikely that new comments will be getting submitted. It's okay if this only works =90% of the time, it doesn't need to be completely foolproof. * idea #4: eventPusher queries DMESG to see if that file's been written to recently. So to sum everything up, I need to have inter-php-script-communication in near-real-time that will work on a standard mod_php shared hosting setup without any elevated privileges, PHP addon modules, or other system adjustments that can't be done from the PHP script itself at runtime. With*out* spinning up the drive more than a few times. No SQL servers either. Apologies if my english isn't the best, I'm still trying to improve on it.

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• Currently well suited SATA2-SSDs for Laptop usage

  - by danilo

  I am looking for a solid state drive for my laptop. My dillemma: I have been waiting for the new Intel SSDs since Q3/2010, as I've heard they should be better and cheaper, due to lower memory manufacturing costs. Now it looks like the new Intel drives are very fast, but still expensive. I would still buy one of them if I could benefit from the full speed. My hardware only has a SATA-2 port though. Thus, my question: Is it worthwhile to buy one of those new Intel SSDs made for SATA-3 if I won't be able to use the full speed? Are there any other promising new SSDs that will be released soon? (Inside the next 1-2 months) If I wouldn't make a good deal buying the newer, faster drives, what drives can you recommend? I don't consider this question subjective, as I am mainly looking for answers concerning the SATA-2/SATA-3 conflict.

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• Windows 2008 Domain Controller - Backup (BDC) to Primary (PDC)

  - by Klaptrap

  I have created a new domain controller with my single domain forest. I have also made it DHCP and DNS ready - all 3 services have synchronised with the existing W2K8 domain controller. I even migrated the FSMO roles and thought everything was fine. Indeed all machines on network appear to obtain DHCP and DNS from new server and the AD is working on the new server as my internal website uses it for login authentication. I have just noticed, via BgInfo - Sys Internals - that the new server is showing as "backup" and the old as "primary" - I thought I had already achieved this. Have the FSMO roles swapped back - as I have yet to have removed the old server from AD (dcpromo). Do I need to do anything before I run dcpromo on the old server? Any thoughts appreciated....

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• v2v of RHEL5 box - issues with retaining MAC address

  - by Alex Berry

  For the last week we have been troubleshooting a customer's Red Hat Virtual Machine running on ESXi. We've been using Veeam to try to create a replica off-site and have been having getting it to work on a decent schedule and recently we noticed that there were issues with orphaned snapshots while looking at the datastore. You can see several snapshots in the same folder and it's causing issues with replication and backup, so we decided the cleanest way was to v2v the machine to another datastore so that we had a clean single-vmdk setup to work with, this is where our trouble started. We first started off with a v2v using vmware converter and connecting to the powered on machine as we were having issues doing an offline v2v. This copied fine but when I tried to set a static MAC using this article http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=507 the new VM wouldn't take the address, it simply obtained a new MAC, received a dhcp lease and then would only boot up to a blank red screen, never the login screen. So the next step was to do an offline v2v, once we finally got it working. Same thing, followed the kb to the letter and still it wouldn't take the MAC. I then tried it again and upon completion I compared both old and new VMX file, copying every identifier and variable possible, then unregistered both VMs, uploaded the new VMX file and booted, only to see the same results. Finally I did the same as above but I copied the disk using DD to a second attached vmdk and then attached this to the new VM, and still no luck. After downloading the modified VMX file after the first boot and comparing it to the original I created I found that the bios uuid had changed from the one I typed in manually, so I'm assuming this may be the snagging point, but I have no idea. I've never had this issue before on a P2V and I'm just wondering if someone could shed some light on this, maybe it's to do with RHEL licencing?

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• Duplicate free/busy or full calendar information between two exchange servers

  - by Wayne Arthurton

  We have acquired a new entity with their own AD/Exchange environment. Until they fully join our domain, we need to sync their exchange calendars or minimally free/busy for users. All users in the acquisition have a new account in our organization. We have considered a number of options including CalDAV, but nothing seems to meet our needs. Even a client solutions to update the NEW server with the free/busy would be workable.

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• How to copy a windows 7 user profile when changing domains

  - by Kris

  I need to connect my machine to a new domain soon. When I do so a new user profile will be created and I would like to copy all the settings/data from the old profile to the new one. This is a local profile only (no roaming). Running Windows 7 Enterprise 64 bit. I found this previous question on the same topic, it however only seems to address Windows XP and the solutions do not seem to apply to Win7.

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• Virtualization in Ubuntu 9.10

  - by Jeff Dege

  I have an existing Centos 5 installation. I would like to upgrade to Ubuntu. Thing is, I don't want to be down for as long as it will take to get my entire environment moved over - software installed, connectivity configured, etc. I'd like to take it one step at a time. But I don't really want to keep rebooting back and forth from the new OS to the old OS. That's what I did last time I upgraded to a new OS, and it got old real fast. So, since my new MB is virtualization-ready (AMD Phenom II 945 quad-core), I figured I could create a virtual machine, under the new OS installation, that ran the old OS installation. The problem is that the documentation I've been able to find has been pretty sparse. I've found a lot of possibilities, and little info on which would be capable of doing what I want. I have a new Ubuntu 9.10 installation, and a second disk containing the Centos 5 installation. And I don't know where to go next. Any help would be appreciated.

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• Adding user to chroot environment

  - by Neo

  I've created a chroot system in my Ubuntu using schroot and debrootstrap, based on minimal ubuntu. However whenever I can't seem to add a new user into this chroot environment. Here is what happens. I enter schroot as root and add a new user.(Tried both adduser and useradd commands) The username lists up in /etc/passwd file and I can 'su' into the new user. So far so good. When I log out of schroot, and re-enter schroot, the user I created has vanished!! There is no mention of that user in /etc/passwd either. How do I make the new user permanent?

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• w2k3 AD DC Demotion fails with "no other AD DC for that domain can be contacted"

  - by Kstro21

  i've a small office with a single w2k3 sp2 DC(bad idea, but it is real), now, i want to make a clean install of that pc, so, i got another one, install w2k3 sp2, add it to the domain, dcpromo and set it to be a GC, untill now everything is ok, then tried to dcpromo in the primary DC, but it fails with The box indicating that this domain controller is the last controller for the domain mydomain.com is unchecked. However, no other Active Directory domain controllers for that domain can be contacted. Do you wish to proceed anyway? If you click Yes, any Active Directory changes that have been made on this domain controller will be lost. So, i started to move all the roles to the new server as described here, when all was ok with the roles, i tried doing the same, but got the same result. Tried moving the DNS to the new server, but it doesn't make difference. Shutdown to the old server, then tried to log into a workstation, but it fails saying the domain is not available, also coudln't add new workstation to the domain, so i have to power on the old server again. So, if i successfully move all the roles and dns to the new server: why dcpromo give such message in the old server? why if i shutdown the old server the domain is not available?? if i successfully move all the roles and dns to the new server, and i click yes when dcpromo give warning in the old server, will i lose all users, computers, ou, etc.? am i missing some steps to make this work?? hope you can help me thanks

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• Forwarding emails to nonexisting users/aliases to external mail server

  - by Niclas Lindqvist

  I'm in the works of installing a postfix mailserver on a machine currently being used as web server. As of right now, I've got it working as far as that I can send and receive emails using telnet through port 25. However, as my customer is concerned with downtime, I'd like to setup all the accounts one by one over time, and making sure it works, rather than just cutting the cord to the old mail server and start creating new accounts on the new system. How can I add the domain customer.com to my mail server and just add something like [email protected] to the users and aliases-lists without the web server trying to send all emails with the @customer.com domain to the new mail server? I'm running ubuntu, using postfix and postfix-mysql on the new machine, the old mail server is on a hosted environment somewhere else, where I don't have any control.

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• Two threads in a rails initializer file seems to not run them properly

  - by Luccas

  Initially I was using one thread to listen a queue from amazon and works perfectly. aws.rb Thread.new do queue1 = AWS::SQS::Queue.new(SQSADDR['my_queue']) queue1.poll do |msg| ... but now I appended another thread to listen another queue: ... Thread.new do queue2 = AWS::SQS::Queue.new(SQSADDR['my_another_queue']) queue2.poll do |msg| ... and now it seems to not work. Only the last one receives response... I have to join the threads? I can't understand What is going on?

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• Process to replace motherboard and keep CPU

  - by jolivier

  My motherboard has been diagnosed with the Sandy Bridge issue (http://vip.asus.com/eservice/changeSandybridge_MB.aspx?slanguage=en-us) so I am asked by my reseller to send back my motherboard to have a new one compatible with the previous one. My problem is that I have a not cheap Intel CPU currently on it, with its standard heatsink/fan. I would obviously like to keep it to plug it on the new motherboard. I am quite woried about the thermal paste. I was planning to: Remove the CPU and the HSF together (I think they are sticked to each other). Try to separate the CPU and the HSF (I'm not sure how) Clean both of the surfaces When the new motherboard is here, put the CPU back on it. Have new thermal paste to put again on the CPU, put it on the CPU Add the HSF again Do you see any problem about this process? Recommendations? Is it possible to keep the CPU and the HSF together for the whole process or is it impossible to plug the CPU back on the new motherboard in this case? Thanks in advance for your answers. Olivier

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• RAID 1 not performing as expected

  - by Faken

  I recently bought a new 320Gb hard drive for my computer to set up RAID 1 on it for some added security. Installation went as smooth as could possibly be (plug in power, plug in data cable, start up computer, Intel software recognized new drive, right click create RAID 1, done!). However, for some inexplicable reason, I seem to have strange test results when using BENCH32. On my old configuration, a single 7200 rpm drive, I achieved about 60 MB/s write and 70 MB/s read. With a new RAID 1 configuration, I would expect the write to be slightly diminished but read to be significantly improved (though not exactly double speed). However, with the new configuration, I am getting 90 MB/s write and only about 80 MB/s read. I should NOT be getting improved write performance, especially NOT better than read! What's going on? My system setup is: q6600 2.4ghz CPU 4Gb DDR2 667mhz RAM on board Intel ICH9R "RAID chip" 2x Seagate 7200 RPM 320GB drives in RAID 1 Widows 7 home premium 64-bit

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• Installing and running two postgresql versions on different ports (or two instances of same server)

  - by Andrius

  I have postgresql 9.1 installed on my machine (Ubuntu). I need another postgresql server that would run next to the old one. Exact version does not matter, but I'm thinking of using 9.2 version. How could I properly install and run another postgresql version without screwing old one (like upgrading). So those versions would run independently on different ports. Old one on 5432 and new one on 5433 for example. The reason I need this is for two OpenERP versions databases. If I run two OpenERP servers (with different versions) on single postgresql port, it crashes because new OpenERP version detects old versions database and tries to run it, but it crashes because it uses another schemes. P.S or maybe I could just run same postgresql server on two ports? Update So far I tried this: /usr/lib/postgresql/9.1/bin/pg_ctl initdb -D main2 It created new cluster. I changed port to 5433 in new clusters directory postgresql.conf file. Then ran this: /usr/lib/postgresql/9.1/bin/pg_ctl -D main2 -l logfile start I got response server starting. But when I tried to enter new cluster's template database with: psql template1 -p 5433 I got this error: psql: could not connect to server: No such file or directory Is the server running locally and accepting connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5433"? Also now when I try to stop server with: /usr/lib/postgresql/9.1/bin/pg_ctl -D main2 -l logfile start I get this error: pg_ctl: PID file "main2/postmaster.pid" does not exist Is server running? So I don't understand if server is running and what I'm missing here? Update Found what was wrong. Stupid me. I didn't notice that when I changed port in .conf file, that line was commented already. So actually I didn't change anything first time, but thought I did and it used default 5432 port.

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• change revision number in SVN

  - by Alaa Alomari

  I have a system that receives files from clients using svn, and we keep track of revision ID in one of our databases. every year we clear the svn repo, and create new repo as it gets very large size. now how can i preserve the revision id when i create new repo. in other words my repo for this year will reach 20000 revisions. how can i start my new repo from revision id 20001. I hope this can be done

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• Move OS from RAID5 array to RAID 1 arrays

  - by Antoine

  I want to give a last boost to my old ProLiant ML350 G5 server which just needs to be reliable for a few more year only ! With a defined budget of about 1500$ (I do not have more), i plan to replace the CPU (+ adding a second one), the battery cache of my raid controller (E200i), double the RAM, and change all hard drives. I have 7 HDD (SAS 10krpm, 72Gb) + 1 spare in RAID5, and my system is all FULL (no empty tray, full disks). in my current RAID5 array, I have 2 partitions: - 1 OS partition, 20Gb - 1 data partition, 350 Gb I plan to replace these 8 disks with : - 2 x 300Gb SAS 15krpm in RAID 1 (= 1 partition for OS) - 2 x 2Tb SATA 7.2krpm in RAID 1 (= 1 partition for DATA) My biggest constraint is that I have only 01 day to upgrade my server. Therefore, I'm looking for cloning all my files (OS + data partition) to my new arrays, i.e : - the OS partition shall be cloned to the RAID1 "2x300Gb array" - the data partition shall be cloned to the RAID1 "2x2Tb array" My second problem is that I need to physically remove all the old hard drives before inserting the new ones. I'm running Windows Server 2003 R2, and even if MS support will expire soon, I cannot buy a new licence and spent time in configuration. Obviously, with 1500$, I cannot also buy a new server that I could start configuring from now ! Thought about ASR (NTBackup), but I have no floppy drive (and do not really want to invest in one !) Thought about a clonezilla clone, and read this interesting link : Windows Server 2003 - move C: partition to a new SAS disk , but i'm not so confident in using Clonezilla with RAID5. What should be the best option to quickly and easily (if possible!) "copy/paste" my OS (so no need to reinstall and reconfigure all) and DATA / programs / services, etc... ? Thanks for your comments

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• Insertion of rows without changing formulas on anohter sheets

  - by julie

  I have two separate spreadsheets which feed each other (one person completes the main one so all others autofill). I have set up formulas so it autofills but when I insert new lines into the main spreadsheet the other spreadsheet takes information from the wrong line, even though the new data was put in the place of the old data. (The new inserted lines were put in where the data was before). can anyone help me to "protect" the formulas from movement? I will appreciate any help.

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• Upgrade SQLServer 2008 hardware

  - by John

  Forgive me if I'm not able to be totally clear here. It is not intentional, I'm a senior level developer in a very small company having to act like a manager at the moment. Anyway, the story is that we have 2 older dell servers with SQL Server 2008 Standard in a "cluster". I put that in quotes because I'm still not 100% clear what that means. We have 2 brand new blade servers and want to move the existing databases to the new hardware. Ok, so here is the gotcha. We need to do this with little or no down time. I'm being told that we can evict the passive node, then pull in one of the new servers. But I'm also being told that this is a dangerous step because something could go wrong that would cause the cluster to fail and then we would be left with nothing because the active server would not be able to come back up. Does anyone have any thoughts on how to handle this? I'm being told that the only way to ensure success is to have at least a day of down time where we bring up a new cluster on the new hardware and then migrate the databases 1 by 1.

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• How to stop iPhone's safari browser from silently dropping tabs when you open a 9th tab?

  - by MattH

  Currently in the iPhone safari mobile browser, if you have 8 tabs open and open a new tab, the new tab opens as requested, but one of the existing tabs is silently discarded. Is there any known way to change this behaviour, e.g. to prompt me first and allow me to choose which tab to close, or to open the 9th tab, or to at least have visibility of what tab was closed? When I open something in a new tab it's because I want to come back to the previous tab later, so this conflicts with the way I usually browse the web. My current workaround is to manually monitor the tab count -- i.e. to check that the count is 7 or less before opening a new tab.

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• Why doesn't VisualSVN enforce credentials correctly?

  - by mrt181

  I have a svn repository that is managed by VisualSVN. I have created a new group and added two new users to that group. When i attach this group to an existing repository and set the rights to Read/Write, these rights do not work on subdirectories. i have to set the rights on every subdirectory. but even then, the users of this group can only read the repository, they can't write anything to it. It works for the new users when i create a new repository. The users use tortoisesvn and get a message like this when they try to write to this repository for example https://myserver:8443/svn/subdir/Application/trunk access to /svn/subdir/!svn/act/76a4c6fd-fa15-594a-a419-18493dacaf51' forbidden

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• Does UNC work between two Intranet domains?

  - by mjustin

  We have some servers which will move to a new Windows 2008 domain, and some Windows 2000 servers which I would prefer to keep in their current domain for a while (until we have the resources to test and reinstall them as Windows 2008 systems in the new domain too). Can UNC still be used to connect to file server resources on the new system from the old servers? Or is UNC limited to work only within one domain? I'll do tests on Monday but every feedback would be very welcome.

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• ZeroDowntime deployment of configuration in Tomcat 7

  - by pagid

  looking at the things which can be done with the Parallel deployments in Tomcat 7, I wonder how new or changed configuration could be provided to these various versions of the application. In a nutshell - what parallel deployment offers is that pushing a new version of a war file to the webapps dir (with filenames like "App##01.war, "App##02.war") and ever user with a new session will get the newer version, all others stay with the old version. So how could one provide different or additional configuration (properties) to the various versions? Cheers.

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• 27 days after domain transfer name servers not propogated

  - by Thom Seddon

  We recently bought the domain: embarrassingnightclubphotos.com 7 days after accepting the transfer the domain finally transferred to our registrar and we immediately changed the name servers from ns*.netregistry.net to amy.ns.cloudflare.com and cody.ns.cloudflare.com 20 days after changing the name servers, the majority of tests show that both old and new nameservers are still being reported: http://intodns.com/embarrassingnightclubphotos.com http://www.whatsmydns.net/#NS/embarrassingnightclubphotos.com We are now ready to launch the new site but this issue is plagueing us as a high proportion of the traffic is still receiving the old nameserves and so hitting the old server. You can tell if you have hit the old or new server as the old server has the value "A" for the meta tag "Location" and the new server has "U". (The old server just has an iframe too!) I have never had this problem before - who is causing this and how should we go about reaching a resolution? Thanks

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• Windows 7: Can I use my 64 bit serial / activation on 32 bit version of Windows 7

  - by Rogue

  My new computer shipped with a 64 bit version of Windows 7 but I want to install a 32 bit version of it (I have the 64 bit DVD). I also have a 32bit DVD which I bought a copy of for my laptop. Can I install the 32 bit Windows on my new computer and use the 64bit serial to activate it or would I have to purchase a new 32 bit Windows OS?

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