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  • PXE Booting with 2 NICs not finding DHCP server

    - by Xaver
    I have two NICs in a client PC. I have a WDS server. When I boot from PXE on client computer I receive: WdsClient: An error occurred while obtaining an IP address from the DHCP server. Please check to ensure that there is an operational DHCP server on this network segment. I think my client is trying to get an IP adress from the NIC which not connected to LAN. How to avoid this error?

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  • Making Linux smart about partition or filesystem moves with a UUID selection dialog?

    - by Luke Stanley
    It seems to me a major part of frustration n00bs have with Linux is due to UUID changes not matching peoples intuition and just working. Does anyone know a way of making GRUB and /etc/fstab just ASK PEOPLE about UUID changes, instead of just failing after people try moving hard disk? Could this be done in Bash or such? Is there a different flag or two somewhere we could simply change? Seems like this, if made to work in common practice could be a major advantage.

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  • Which web services should be integrated?

    - by Adam Matan
    Mail + Social networking? One identity for all sites? Integration between all social networks and IM services? Which web services should be integrated in the future, and why? Edit: Clarification: By "integrating", I mean that two or more services should be seamlessly connected, and that connection would benefit the user. Foe example, I would really like to have an IM application that would support many accounts on many IM providers (And IMHO, Pidgin's not ready yet).

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  • Fan Error on Lenovo R61

    - by OrangeRind
    Problem Since the last two days, my Lenovo R61 is giving me a "Fan Error" message during boot, after showing which, it powers down. It does so for 3-4 boot attempts, and after a bit of tapping and such human treatment, in the 6th or so attempt, it luckily starts. Question Why is this happening ? How do I fix it ? Thanks in Advance. :)

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  • How do you prevent spam being sent by your users?

    - by Ernie
    So, for the third time in about two weeks (maybe less), one of our customers has had their password compromised, and a spammer was sending mail with their account using our webmail. As a result, our outgoing mail server has been listed at Spamhaus, and a lot of our outgoing mail is being rejected. I can't think of any way to prevent this from happening (although now our webmail server is using Sendmail instead of SMTP, but that just limits the scope of the problem), yet the big ISPs never seem to have a problem like this.

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  • Areca 1280ml RAID6 volume set failed

    - by Richard
    Today we hit some kind of worst case scenario and are open to any kind of good ideas. Here is our problem: We are using several dedicated storage servers to host our virtual machines. Before I continue, here are the specs: Dedicated Server Machine Areca 1280ml RAID controller, Firmware 1.49 12x Samsung 1TB HDDs We configured one RAID6-set with 10 discs that contains one logical volume. We have two hot spares in the system. Today one HDD failed. This happens from time to time, so we replaced it. Upon rebuilding a second disc failed. Normally this is no fun. We stopped heavy IO-operations to ensure a stable RAID rebuild. Sadly the hot-spare disc failed while rebuilding and the whole thing stopped. Now we have the following situation: The controller says that the raid set is rebuilding The controller says that the volume failed It is a RAID 6 system and two discs failed, so the data has to be intact, but we cannot bring the volume online again to access the data. While searching we found the following leads. I don't know whether they are good or bad: Mirroring all the discs to a second set of drives. So we would have the possibility to try different things without loosing more than we already have. Trying to rebuild the array in R-Studio. But we have no real experience with the software. Pulling all drives, rebooting the system, changing into the areca controller bios, reinserting the HDDs one-by-one. Some people are saying that the brought the system online by this. Some are saying that the effect is zero. Some say, that they blew the whole thing. Using undocumented areca commands like "rescue" or "LeVel2ReScUe". Contacting a computer forensics service. But whoa... primary estimates by phone exceeded 20.000€. That's why we would kindly ask for help. Maybe we are missing the obvious? And yes of course, we have backups. But some systems lost one week of data, thats why we'd like to get the system up and running again. Any help, suggestions and questions are more than welcome.

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  • What exactly is the difference between update-manager -d and normal apt-get?

    - by jldugger
    The official recommendation of Ubuntu is to use sudo do-release-upgrade to do an online upgrade from one version to the next. Historically many of my Debianite friends and myself have simply altered apt's sources.list and run apt-get dist-upgrade. I follow Ubuntu's recommendations, but I've always wondered what the magic difference between these two processes is. What, exactly, does do-release-upgrade do, on say an upgrade from 9.04 to 9.10? (Examples from other releases welcome.)

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  • NTFS on the mac - worth paying for?

    - by Console
    I currently use ntfs-3g on my mac to be able to write to NTFS-formatted drives. I have seen two commercial alternatives that boast better performance and more advanced features - Tuxera (a commercial version of ntfs-3g it seems) and Paragon. Are these products really better? Any experiences, hard facts, benchmarks from real-world use?

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  • Sending output to both bluetooth headset and normal speakers - Windows 7

    - by Christian Mann
    Hey, I have a bluetooth "headset" (it's more like a speaker with a microphone on it, but it registers as a headset) and I want to play music through it. I also want to play the same music through the "normal" speakers on the laptop. Is this possible? If so, is it possible to play two different streams on each speaker? Say if I wanted to DJ a party or something, I'd want to hear the upcoming song and mix it before sending it live.

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  • Losing internet connectivity on server after installing LogMeIn Hamachi (with server set as gateway node)

    - by Kim Jong-Un
    Our domain controller (SBS 2003) completely lost internet and network connectivity yesterday after I remotely installed LogMeIn Hamachi on it and set it to be a gateway node- in an attempt to create a VPN link between the server and a remote site. I had to go in to the office to resolve the problem as, unsurprisingly, my own remote access to the server was also lost. I was only able to restore network connectivity by deleting a virtual network adapter Hamachi created when making the server the gateway node (called "Hamachi bridge" I believe), then rebooting the server. This is a repeatable problem. Every time I try to get this to work, it just takes the server offline. Why would this bridge affect regular TCP/IP connectivity on the NIC in this way? I have tried a "hub-and-spoke" configuration between the server and our PC at a remote site (server set as hub, remote site as spoke). This caused no such problems with general internet connectivity, and file transfer worked well between the two computers. However, there was a DNS issue with the VPN between the two sites- resulting in Active Directory not being able to communicate between them (could not log on using domain user accounts at remote site if they were not already cached on that machine). I only tried a "gateway" network as LogMeIn support told me: If you can get the Active Directory to work it would only be through a "Gateway" network type with the server acting as the Gateway Node. You would configure the gateway settings on the server in the Hamachi client on that machine to push whatever IP's/DNS settings you prefer and at that point AD would be able (all things being equal) communicate to the client node when it attaches. We do not have any ActiveDirectory configuration info as that's outside the scope of our support. I hope this helps. It would be fantastic if I could get Active Directory to work over a Hamachi VPN connection, without worrying about the server going offline in this way. Does anyone have any ideas how I should proceed, or any theories as to what is going on when I try to use the "gateway" network type? I want to try to narrow down what is going on here.

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  • App or apps like NetLimiter Monitor for Linux

    - by Nathaniel
    I find NetLimiter Monitor quite handy on Windows both for the realtime per-process bandwidth monitoring and the recorded data usage. What tool or tools can I use to replicate this functionality in Linux? I am okay using two separate apps for the bandwidth and the usage monitoring, but the usage monitoring is a must have.

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  • Can't connect to workgroup

    - by Bonyfus Martin
    I have two computers in my workgroup. My laptop has Windows 7 on it and desktop has Windows Server 2008 on it. I can ping and connect to the Windows Server 2008 from my laptop but I cannot ping or connect to my laptop from Windows Server 2008. Both computers are in the same workgroup, and their IP addresses use the same subnet mask. Does anyone know why I cannot connect to my laptop from the Windows Server 2008 machine?

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  • Batch add/import of a list of users to a group in Active Directory?

    - by JB
    We have two lists of users (about 1000 each) that we need to add to groups in Active Directory (Windows Server 2003...one list will be in one group, one in the other). All the users currently exist in the directory, but we just need to assign them properly. Is there an easy way to do this without scripting? If not, can it be scripted with Ruby, Perl or Python? Thanks!

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  • decommissioning WINS

    - by longneck
    My network has all 2008R2 domain controllers, but we are running Active Directory in Windows 2003 mode. Two of our domain controllers are configured as WINS servers. I have discovered that our copiers and fax machines are currently configured to use WINS to find their servers, so I'm in the process of configuring them to use DNS instead. How can I find out what else is actively using WINS? What procedure should I follow to decommission WINS from my network?

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  • Intermittent Disconnection of Client Computers from Domain Server

    - by dilip nagle
    The Background: I have Windows 2008 server Enterprise Version with 25 user cal licences. It has a domain and all users and a network shared HP printer in it. The Server has two network cards and both these cards as well as all client machines are on IP addressing scheme of 192.168.1.* with subnetmask 255.255.255.0. Of the two network cards viz. 192.168.1.231 and 192.168.1.233, only 192.168.1.231 is registered with DNS. In 192.168.1.233(i.e. 2nd network card) has default getway as 192.168.1.231 and dns address as 192.168.1.231. The Server has three hard disks with capacities as 500gb, 500gb and 1TB and are partitioned as (C,D,E), (F,G) and (K) with partition K having all user data into various Shared Folders. Each of these folders(On Partition K), are mapped onto each user's computer as per the right of access given to them. The Problem: The Server was installed about 6 months ago and till date not even once, the Server has Hung or has given any problem. All the Clients computers are able to run the web based software from their computers via ip address, e.g. http://192.168.1.231/webERP/default.aspx. However, occassionally, when any client computer tries to browse network mappings, it hangs. Again, there is no fixed pattern. This may happen after running smoothly for say 3 days. On each Client's machine, the network settings are as follows: IP Address: 192.168.1.* where * is 1,2,3 .... Sunnetmask: 255.255.255.0 defauly getway: 192.168.1.231 Which is a server card and DNS address. preferred DNS Server: 192.168.1.231 In Advanced Tab under Wins: LMHostLookup is Unticked and default is radio buttoned. Ideally, I would have loved to have Disabled NETBIOS over TCP/IP but some network printers do not get accessed if this option is enabled(ie. Radio Buttoned). Bacause Disabling Netbios will drastically reduce traffic of NETBIOS broadcasting to all the computers on the net to do naming resolution. On Server, I have WINs Running which I have Scavanged Records, verified Database Integrity etc, removed Tombstoned Records etc. The Critical Errors shown only once a day when the server is statred are 4224(WINS) and 12923 - Server Licencing failed to Update DNS Record. I fail to understand as why do client machines HANG when they try to browse mapped network shared folders on K Drive. Kindly Advice

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  • Win 8: Adding a boot volume to an MBR dynamic disk [NOT about changing to basic disks]

    - by Stilez
    (This is NOT aiming to convert to basic disk. In this question, the disk stays dynamic but becomes bootable) There doesn't seem to be a clear, well stated answer I can find, for the question "What are the criteria for Windows 8 to successfully boot from an MBR dynamic disk", or "how do I fix a dynamic MBR partition that's failing boot"? I've tried to educate myself but can't find crucial information to clear it all up. My existing HDD/SSD setup: DISK 0 ~ 60GB SSD/MBR/basic: (350MB recovery)(60GB windows 8 bootable) DISK 1 ~ 512GB SSD/MBR/dynamic: (350MB recovery)(60GB unallocated)(410GB mirrored data) DISK 2 ~ 512GB SSD/MBR/dynamic: (350MB recovery)(60GB unallocated)(410GB mirrored data) DISKS 3, 4, 5: (ignored for simplicity: 2xHDD RAID1 + caching SSD) I'm heavy duty on data crunching and virtualisation, just maxxed out 32GB RAM @ 2133 and moved to 4960X + 64GB. Disk 0 is a pure system disk of little value, and virtualisations runs off mirrored SSDs (Samsung 840 Pro 512 x 2) for double speed reading and so they snapshot in reasonable time. I'm using 4 SATA3 ports and the board only has two decent Intel ports (onboard Marvell are poorer quality). I'm wary of choosing between LSI, HighPoint and other 3rd party controllers as I'm unfamiliar with the maze of decent RAID cards (that's a whole other issue!). I want to cut down my SSD needs by moving the boot volume and caching volume to the 840 pros, giving a setup with 2 fewer SSDs: DISK 0 ~ 512GB SSD/MBR/dynamic: (350MB recovery)(60GB boot)(410GB mirrored data) DISK 1 ~ 512GB SSD/MBR/dynamic: (350MB recovery)(30GB cache for the ICH10R mirror)(30GB temp)(410GB mirrored data) DISKS 2, 3: (2xHDD RAID1) Intel's RST allows this, Win 8 allows booting off a MBR/dynamic disk, and the two 60GB SSDs are hardly the fastest SSDs anyway, they'll get repurposed. Moving the caching volume is easy. Moving the boot volume has me stumped. The difficulty is, I'm hitting a wall of knowledge here. I have a UEFI Asus motherboard with an previous traditional MBR/basic boot disk, and I want it to boot from a disk and volume that's MBR/dynamic. The disk copy is physically ok (Partition Wizard Server will copy to dynamic volumes) but then hits a light blue 0xc000000e boot error. No real surprise, I expected to have some boot fixing, but had expected Windows to boot-fix it (all drivers exist), or the usual manual fixes to work. Specifically, I don't know enough, to know what's got to be manually checked and perhaps corrected for the disk to boot (legacy/uefi/bios, odd partitions, boot tables, disk IDs, hidden boot files, oh my!), or if I need to change any of this secure boot/UEFI/legacy stuff in the bios, convert a 512 SSD to basic and then back to dynamic when working, or if the issue is pure OS config using "diskpart", "bootsect" and "bootrec" from the Win8 DVD. The old system disk still boots but I don't know enough to figure what to fix, to make the system boot as I want. The answers probably aren't hard but the real issue is my confusion and missing information. Thanks for helping!

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  • Brand new Mac Pro tower fan suddenly runs full-tilt

    - by Caffeine Coma
    My Quad-Core Mac Pro tower is two days old. Initially, I was impressed with how quiet it was compared to my older Macbook Pro. Then on day two, for some reason it started running very loudly. It's not just a "little" loud- my wife walked into the room and asked what the noise was. At first I thought this was just because I was hitting the CPU a bit (importing my iPhone library into iLife '09, and running Eclipse). But now that that's done, Activity Monitor shows a virtually idle CPU; there's nothing running that ought to be causing this, as far as I can tell. I tried powering it off & letting it cool down for a few minutes to no avail; about 10 seconds after powering up, the box gets loud again. I took a look at it with the side cover off, and it seems to be the fan near the top middle, between the power supply and the disk drive. It can't be a dust issue, as the machine is only 2 days old (and I peeked inside anyway just to be sure- clean). I did do a software update over the past 24 hours or so, but I can't say that it occurred immediately after that. I also did a migration of my old apps and data from my MBPro, for what it's worth. Why is it suddenly so loud? How can I monitor the fan speed and various system temperatures? Here's a link to my temps and fan speeds. UPDATE 1: Took it to the Apple Store. They took it in the back (where it's presumably quieter) and ran a fan diagnostic; no problems were found. The guy also told me that it was "a little loud", but normal. I don't buy it. It was virtually silent the first 24 hours I was using it. They would not replace/service it in the store (grrr... that's why I went there, as directed by Apple Care) but said I could get a replacement from the online store, as it was just purchased. I think I will try that. UPDATE 2: Apple is letting me send it back for a replacement. Glad to see so many responses to this question mentioning that the MacPros are usually silent; it's not all just in my head. :-)

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  • How to move Exchange 2003 mailbox or store from 2003 to 2007 on separate networks?

    - by David
    I have an exchange sever 2003 installed and working. I have a new exchange 2007 server on another network. The two networks are completely separate with no connection. How can I take the 2003 mailboxes and put them on the new 2007 system? The move mailbox normal option on 2007 will not be able to see the old 2003 exchange server. I was hoping I could just copy the database and mount it, but this doesnot seem to work. Thanks

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