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  • Can I use Veritias Storage Manager to provide HA storage using server-local storage?

    - by Paul
    I have a need to provide an high-availability ftp/http file repository. Upload will happne to one server, but the uploaded file must be immediately visisble on all other servers I can handle the failover of the servers themeselves using load balancers. But in the event of failure of one server, the other servers must see the same contents of the repository. Normally, I'd use a SAN for this, but in this case the data centre standards do not allow SAN/external storage - all storage will be local to the servers. Cam I use Veritas Storage Manager (or any other product) to manage mirroring hte contents between servers in this way? Or does that require a SAN? I couldn't tell either way from a quick look at the data sheets etc.

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  • How can I diagnose what's causing Outlook 2007 when sending an attachment to fail with error 800CCC0F even though the message was sent?

    - by James
    As the title suggests, I've got an issue where outlook 2007 is reporting it failed to send email with error 800ccc0f (unexpectedly terminated connection) but only with attachments. The email is actually sent, but outlook keeps retrying (stays in the outbox), generating more emails to the original recipient (which do get delivered) I've got QMail on the server side supporting a half dozen domains. It doesn't appear to matter which account I send from. I can successfully send attachments via alternate mail clients (webmail, thunderbird) while outlook is failing, or send messages without attachments; so it's seemingly not the accounts themselves or serverside, which leaves outlook as the culprit. There doesn't appear to be any pattern to the failures, and it's not consistent (I successfully sent an attachment as recently as 3 weeks ago) so I'm at a loss as to where to look. Qmail logs don't look any different between successes and failures. Has anybody seen this before/have a solution? UPDATE : It appears it's only PDF files that this occurs with, so I'm even more stumped. I can send html/docx/txt and zip, UNLESS the zip file contains a pdf ... whiskey tango foxtrot

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  • files appearing empty or only partially transferred on FTP server.

    - by james
    firstly, apologies if this question has been asked and answered before, but I have had a look through related queries and found nothing identical to this. I have had a website for a few years, and have never had any problem uploading any files. But today, when i went to transfer a new html file onto the server...i did so, the file arrived. so i browsed to the file in my browser to check the page as i always do, and the browser wouldn't acknowledge it. after repeated attempts to transfer it, it finally seemed to go over, but only 1/4 of the file size..4KB out of 16KB...so only the top of the page would be viewable in my browser...ive tried transferring on a number of ftp clients and no love... my expertise on this is limited and i cant really think of the next step, the server isnt full, so...im just stumped. any ideas? any and all feedback is great appreciated.

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  • Can't create LVM due to: not found (or ignored by filtering)

    - by James
    I'm planning to use LVM for KVM, and when I try to create a VG it fails, so how can I create my VG and LV ? Thanks [root@server ~]# vgcreate virtual-machines /dev/sda Device /dev/sda not found (or ignored by filtering). Unable to add physical volume '/dev/sda' to volume group 'virtual-machines'. [root@server ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda3 2.0T 929G 976G 49% / tmpfs 3.9G 124K 3.9G 1% /dev/shm /dev/sda1 194M 57M 128M 31% /boot [root@server ~]# pvscan No matching physical volumes found

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  • Windows Server 2003 (w/Exchange) move to new machine

    - by James Booker
    I have an ageing domain controller (the only one on a 10-pc network) which needs rebooting often. I have a Dell Poweredge 2850 server doing nothing, so I'd like to move the DC to that, but here's the catch - I don't have Win2k Server Std install media any more as it's been lost. I purchased "Easus Todo Backup Advanced Server" which claims to be able to recover to dissimilar metal, but it's not quite working (although I don't think it's the product's fault) I know the server and PERC RAID card are good because I installed Ubuntu on the logical drive (4 x 72GB disks RAID 5) no problems. I've booted frmo the Easus Todo backup CD (which is WinPE based) and recovered to the logical disk on the RAID (after installing driver inside the WinPE environment from a NAS drive) The problem is when I boot the server, I can get the OS selection menu, but any option results in a blank screen, with no errors. I figure this is probably because the driver wasn't installed on the old machine (which is IDE-based (i know, i know!) and doesn;t have a RAID controller) I've booted from the CD and copied the mraid35x.sys file to the c:\windows\system32\drivers folder on the recovered system, but it makes no difference. I made a boot.ini with rdisks 0-10 defined, and booting from each of these resulted in a file error (i.e. 'this isn't a real disk') - the only disk that gets any response (the blank screen) is multi(0)disk(0)rdisk(0)partition(1) which just gives me the blank black screen and no disk activity. Is there any way I can force the drvier to be installed on the source system (so i can do a full backup again), i've tried right-clicking the oemsetup.inf and clicking install, but it didn't actually do anything. I attempted to force it with the 'Add new hardware' wizard and forcing with the 'have disk' option but it still gave me no hardware to select. Also I've got an identical machine running WinXP which uses the PERC driver successfully (which was obviously done at install time) and the boot.ini settings are the same : multi(0)disk(0)rdisk(0)partition(1) Any ideas would be appreciated.

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  • Why is only one domU giving me the "time went backwards"?

    - by Paul Tomblin
    I'm setting up a replacement server for one that was working ok but is having hardware issues. The original server is i686 (Pentium III), but the new one is amd64 (Xeon). Everything is working fine, except one of the three domUs is giving me the "clocksource/0: Time went backwards" error. The Debian Wiki says what to do if all your domUs are getting this error, but not what to do if only one of them has. The "tenants" on my domUs have done some messing about with the systems I configured for them. I don't know what the user of that particular domU might have done.

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  • "SIOCSIFADDR: No such device" after restoring backup

    - by Paul Tomblin
    I bought some new hardware, and tried to restore my backup on it. When I boot, I don't get a network connection. If I type "ifup eth0" on the command line, I see the messages: SIOCSIFADDR: No such device eth0: No such device lspci shows an ethernet controller (Intel 82546GB). ifconfig does not show any controller except loopback. I tried installing bare Debian on the machine and the network worked then, but now I want to make it like my old machine was. Googling this problem only seems to find people having this problem in VMs. I'm not in a VM.

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  • How to measure TCP connection time in Linux

    - by Paul Draper
    I want to measure the overhead in creating a TCP connection. I know of many tools like hping and netperf, but they seem oriented at measuring latency. I want to know how long the 3-way handshake takes, and allocating any buffers, etc., and then closing it. So I want to open a real, legitimate TCP connection, and then close it. Are there any tools that will do that and help me measure performance?

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  • Why can't we reach some (but not all) external web service via VPN connection?

    - by Paul Haldane
    At work (UK university) we use a set of Windows servers running WS2008R2 and RRAS which offer VPN service to students in our accommodation. We do this to associate the network connections with individuals. Before they've connected to the VPN all they can talk to is the stuff thats needed to setup the VPN and a local web site with documentation on how to connect. Medium term we'll probably replace this but it's what we're using at the moment. VPN on the 2008 servers allocates client a private (10.x) address. Access to external sites is through NAT on the campus routers (same as any other directly connected client on a private address). Non-VPN connections aren't seeing this problem. Older servers run WS 2003 and ISA2004. That setup works but has become unreliable under load. Big difference there was that we were allocating non-RFC1918 addresses to the clients (so no NAT required). Behaviour we're seeing is that once connected to the VPN, clients can reach local web sites (that is sites on the campus network) but only some external sites. It seems (but this may be chance) that the sites we can reach are Google ones (including YouTube). We certainly have trouble reaching Microsoft's Office 365 service (which is a pain because that's where mail for most of our students is). One odd bit of behaviour is that clients can fetch (using wget on a Windows 7 client) http://www.oracle.com/ (which gets a 301 redirect) but hangs when asked to fetch http://www.oracle.com/index.html (which is what the first URL redirects to). Access works reliably if we configure clients to use our local web proxies (Squid). My gut tells me that this is likely to be something in the chain dropping replies either based on HTTP inspection or the IP address in the reply. However I'm puzzled about why we're seeing this with the VPN clients. Plan for tomorrow (when I'm back in the office) is to setup a web server on external connection so that we can monitor behaviour at both ends of the conversation (hoping that the problem manifests itself with our test server). Any suggestions for things we should be looking at?

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  • Mirroring a drive in Debian

    - by James Willson
    I have a drive with data on it. I dont want to use RAID, instead I want to do hourly backups to a second drive. I basically want to mirror the data drive and resync every hour. It is inefficient to re-move the data each time so really I only want to move across what changes. I.e if I add a new file to the data drive only that file will be moved across. What tools are there for doing this on the command line? I used to use luckybackup on Ubuntu but now im on commandline debian.

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  • Windows Vista Context Menu>New... does not find entries

    - by Paul
    I was trying to remove a virus and foolishly did not backup registry keys I deleted because I (thought) I only deleted entries from the folders of programs I did not care about. However, I think I have done something wrong here: Now when I open a context menu (right click) in any location and hover over the "New..." option I don't get any options. It has a greyed out box saying "(Empty)". So far I have found out the the entries themselves are still there (using the locations provided here: Windows 7 - Add an item to 'new' context menu). I have also used a program recommended in that thread which also finds the entries intact and enabled. So it seems maybe I have deleted the entry which tells Vista where to look to find the files that can be created. How can I restore this so entries are shown again? I know system restore is an option but as I have said I did this when removing a (very stubborn) virus so that is the last resort.

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  • Multi-machine backup solutions

    - by Paul
    I have a growing number of PCs and laptops in my home that need a backup solution. My question is 2 fold: Most commercial backup vendors appear to license by the machine, are there any products that give a license that can be used on all your machines, without a per machine cost? An alternative is to have a centrally controlled back up strategy controlled from a single PC with an attached hard drive that can back up other machines on the network. What backup software is suitable for this approach? Will this software be windows/Linux interoperable? I've searched for duplicate questions but don't see anything that addresses the multi machine/cost issue. OSs in network will be Windows (XP, Vista, 7) and Linux variants. Not pattern to when machines will be switched on.

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  • wget recursive limited within subdomain

    - by Paul Seangwongree
    I want to download the following subdomain with the recursive option using wget: www.example.com/A/B So if that URL has links to www.example.com/A/B/C and www.example.com/A/B/D, these two should also be downloaded. But I don't want anything outside the www.example.com/A/B subdomain to be downloaded. For example, if www.example.com/A/B/C has a link back to www.example.com, the page www.example.com should not be downloaded. What wget command should I use?

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  • Maximum filename length shorter in search windows than same file in original folder

    - by Paul
    Why can a mp3 file-name be 165 characters long in its original folder, but when searching that folder, the search results window only allows editing of the first 130 characters of that same mp3 filename? This did not happen in XP! The problem occurs with both local and external drives. The act of searching doesn't somehow add to the file-name's path does it? I need to edit filenames in the search window (as I did with XP successfully) but now the search window results suddenly cannot be edited.

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  • How can I access cpu temperature readings using c#?

    - by Paul
    For a programming project I would like to access the temperature readings from my CPU and GPUs. I will be using C#. From various forums I get the impression that there is specific information and developer resources you need in order to access that information for various boards. I have a MSI NF750-G55 board. MSI's website does not have any of the information I am looking for. I tried their tech support and the rep I spoke with stated they do not have any such information. There must be a way to obtain that info. Any thoughts?

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  • When RAID 10 is SLOWER than RAID 1, why?

    - by Paul
    We have a Dell 2950 with PERC and 14 external SAS 15K 73GB drives. An Oracle database job takes 3 hours to run with the drives set as hardware RAID 10 (striped across 7 mirrored pairs). The same job with the drives in RAID 1 takes only 1 hour. OS is Win 2008 R2 I think. Before we change the RAID level (with considerable downtime) on the production box, does anyone know why we're seeing this odd result, and if there's a better way to fix it?

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  • Move email off Small Business Server to Google Apps, retain other SBS functions?

    - by Paul S.
    Recently, an in-house Microsoft Small Business Server 2011 was installed where I work. Unfortunately, our buildings have a bad electrical power supply and we suffer frequent outages. We have a large percentage of staff working off-site. Now when the power goes off here, everyone everywhere loses email functionality. I have been assigned to research the possibility of routing our email to Google Apps while maintaining LAN functions on the SBS. I haven't worked with Microsoft products for several years now, so do not know how SBS is structured. Can anyone here tell me if this is possible, or point me to good resources that explain our options?

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  • script runtime errors

    - by james
    i have checked disable scripting (both) in IE tools (and it stays checked) and am still getting frequent runtime error boxes. it happens with chrome open, but not IE. any ideas? thanks

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  • strange Kernel Process Threads taking over my AIX box....

    - by Paul
    When I check the Running Stats of my box I get the following: CPU User% Kern% Wait% Idle% Physc 0 37.5 57.4 0.0 5.1 0.01 2 0.0 18.3 0.0 81.7 0.00 3 0.0 22.5 0.0 77.5 0.00 4 0.0 17.0 0.0 83.0 0.00 5 0.0 20.5 0.0 79.5 0.00 6 0.0 33.7 0.0 66.3 0.00 7 0.0 4.4 0.0 95.6 0.00 8 0.0 19.3 0.0 80.7 0.00 9 0.0 22.3 0.0 77.7 0.00 10 0.0 19.2 0.0 80.8 0.00 1 0.0 1.3 0.0 98.7 0.00 11 0.0 21.8 0.0 78.2 0.00 21 0.0 62.9 0.0 37.1 0.00 12 0.0 21.1 0.0 78.9 0.00 13 0.0 22.7 0.0 77.3 0.00 14 0.0 18.1 0.0 81.9 0.00 15 0.0 21.2 0.0 78.8 0.00 16 0.0 19.1 0.0 80.9 0.00 The Kern% seems high to me and I cannot find a reason for this much Kernel activity.... Doing a deep dive into what User processes are doing I find nothing with significant CPU utilization even though TOPAS and SAR both show the same thing.... One CPU with 30-60 % user and every processor with 5-30% Kernel % utilization... What is my box doing??? here is a second sample of CPU % from TOPAS CPU User% Kern% Wait% Idle% Physc 0 67.8 31.4 0.1 0.7 0.14 2 0.0 18.2 0.0 81.8 0.00 3 0.0 20.3 0.0 79.7 0.00 4 0.0 17.3 0.0 82.7 0.00 5 0.0 20.7 0.0 79.3 0.00 6 0.0 39.2 0.0 60.8 0.00 7 0.0 5.0 0.0 95.0 0.00 8 0.0 17.9 0.0 82.1 0.00 9 0.0 22.0 0.0 78.0 0.00 10 0.0 18.0 0.0 82.0 0.00 1 0.0 0.7 0.0 99.3 0.02 11 0.0 21.7 0.0 78.3 0.00 21 0.0 21.7 0.0 78.3 0.00 12 0.0 17.0 0.0 83.0 0.00 13 0.0 21.1 0.0 78.9 0.00 14 0.0 17.8 0.0 82.2 0.00 15 0.0 21.8 0.0 78.2 0.00 16 0.0 17.6 0.0 82.4 0.00 Any ideas to help identify what is running in the Kernel Space would be great....

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