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• Full speed internal switch bandwidth but per-port set external bandwidth?

  - by garg

  I am in an environment where all the machines are behind a switch that I don't have access to. Each ethernet wall port has limited bandwidth depending on how much has been paid for each port. The problem is that some people have 10Mbps connections and some have 100Mbps connections and this causes problems with local intranet file transfers and operating system/software deployments. Operating systems can take hours to be deployed if the machine is on 10mbps. Do you know if it is possible with most switches to set a rule that would limit bandwidth coming in/going out to an extranet, but keep full bandwidth if the packets are destined to go to a local machine? For example, the internet might be limited to 10Mbps, but internal servers would get gigabit speeds? Thanks

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• OSX 10.6 integration into NIS/netgroup/automount infrastructure

  - by mdpc

  I have an existing infrastructure where accounts are maintained under NIS (yp) with no local unix accounts. Also, all the standard maps including hosts, mail aliases, netgroups, etc...are maintained in this form. Extensive use of the UNIX/Linux automounter with items scattered over the network on NFS servers. There are NO ACLs on any local or shared files. All mail needs to use basically the nullclient sendmail configuration feeding into a different system. I now have a requirement to integrate an Apple OSX 10.6 system into this environment and make it run seamlessly. My initial reading and second-hand information seems to indicate that this may not be possible on the native OSX 10.6 system. I'm concerned. Any ideas as to how to accomplish this task and make everybody happy? Thanks PS: I have never used an Apple OSX system.

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• Co-location vs. cloud hosting

  - by RainyRat

  We have a decent-sized server estate: several ProLiants, plus IBM BladeCentre and SANs running a VMWare environment. Due to an imminent premises move, we're not going to have enough space for a server room, so I've been looking at moving everything out to a colo. My boss is more keen on the idea of cloud-hosting everything, which would include a couple of high-traffic websites (about 9m pageviews/month), our Exchange sever (about a million clean emails sent/received monthly), as well as file/print/AD/all the ususal stuff. This doesn;t sound like a good idea to me, but I'm new to the ways of the cloud. Can anyone offer any advice?

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• Re-using port 443 for another service - is it possible?

  - by Donald Matheson

  The ultimate goal is to allow a remote data connection service to operate on port 443 on a the SQL server. The application accessing the connection is behind a firewall and it is because of the client's reluctance to open another port that I have been asked to try and get this working. The current environment is Windows 2003 R2 (SP2) and SQL Server 2005. IIS is not installed, but when I try and install the third party connection software (SequeLink) it won't as it reports something is still configured on/using port 443. Netstat does not show anything listening on the port and I've tried editing the system32\drivers\etc\services file removing any reference to port 443 and also using sc delete to delete the HTTP and HTTPFilter (HTTP SSL in services console) services to see if this would help. Rebooting after each change. What could still be using the port? Is what I'm trying even possible (I have my doubts but have to investigate every avenue)? Any help/pointers would be greatly appreciated.

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• Can unexpected power loss harm a Linux install?

  - by Johan Elmander

  I am developing an application on a Linux embedded board (runs Debian) e.g. Raspberry Pi, Beagle Board/Bone, or olimex. The boards works on an environment that the electricity is cut unexpectedly (it is far complicated to place PSU, etc.) and it would happen every day couple times. I wonder if the unexpected power cuts would cause crash/problem on the Linux Operation System? If it is something that I should worry, what would you suggest to prevent the damages on OS against the unexpected power cuts? PS. The application needs to writes some data to the storage medium (SD card), I think it would not be suitable to mount it as read-only.

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• Using 2-port LSI 2308-8e card to control 24 SAS HDDs

  - by GregC

  I would like to rely on a RAID-on-chip solution to control 24 SAS hard drives in a direct-attached environment. How would you approach this to get best bandwidth given that I'd like to spend less than $10,000 on the interconnect. I've read that LSI 2308 chip can easily handle 8-drive SSD RAID6 in hardware. I'd like to harness its power to control 24 SAS hard drives over an expander in an external enclosure. Currently I use an Infortrend S24S-G2240 external enclosure. It provides its own controller and expander. I'd like to use LSI 2308 controller for RAID6 somehow instead of the mystery controller in the enclosure. P.S. I tried to create SAS-expander as a tag, but my rep on this site is low.

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• Remotely managing Hyper-V VMs from Windows 8 Client

  - by Vazgen

  Currently, I have a core Hyper-V Server hosting VMs for a domain controller and several domain-joined VDI infrastructure servers. The VMs are connected in that domain environment, but the remote management of the physical Hyper-V Server is set up using the same WORKGROUP (as the Windows 8 client I'm managing from) This makes it cumbersome to manage the VMs hosted on the physical server from my remote management Windows 8 client because I can only connect to the physical Hyper-V server and not the individual VMs hosted inside. Can I make my set up more flexible by hosting a second domain controller in a VM hosted on my Windows 8 machine and switching my remote management set up to use the same domain through? Meaning ALL physical and virtual machines including the VDI infrastructure under the same domain? I'm new to this just looking for some suggestions.

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• Can not run ifconfig like commands via browser

  - by savruk

  Hi, Problem is I cannot run "ifconfig" or similar commands via browser. Environment: Programming language : python Server : lighttpd(CGI) , running on busybox. Well machine is really small and so I am really restricted. Tried techniques: chown every script to root. But there is no differences. Why? Because lighttpd runs under another user, I mean not under root. As it is not root, when I try to run script from browser it always calls the python file with its uid. So it makes it impossible to run "ifconfig eth0 192.168.2.123" like commands via web browser. I get "ifconfig: SIOCSIFADDR: Permission denied" error. What can I do? I do not have any sudoers file, so cannot modify sudo command. Well, I don't even have "sudo" command :) Thanks for your help

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• Providing high availability and failover using MySQL on EC2

  - by crb

  I would like to have a highly-available MySQL system, with automatic failover, running on Amazon EC2 instances. The standard approach to solving this is problem Heartbeat + DRBD, but I've found a lot of posts suggesting DRBD doesn't work on EC2, though none saying exactly why. Obviously, a serial heartbeat or distinct network is out of the question in the virtualised environment. It would also be good to have the different servers be in different availability zones, but we're getting into a much harder problem there. What are peoples' opinion on having a high uptime solution in "the cloud"?

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• How can I terminate wisptis.exe in Windows XP SP2

  - by user9950

  I am working in a production environment. Basically I work on graphics oriented enviroment so I used to work on catia and windchill as well. When I am opening a part or diagram in Catia along with CNEXT .exe (catia service) wisptis.exe is starting and making the system halt and Catia will crash. So I need to restart the worksation or I need to close all applications then I need to open catia then again the same problem. So please tell me how to avoid this or stop the wisptis.exe service. If I want to work on catia I need to kill wisptis.exe service otherwise I cant work.

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• use of [!NOTFOUND=return] in nsswitch.conf

  - by Chris Phillips

  Has anyone come across the use of this config for passwd and groups config in nsswitch.conf? Where I'm working I've been told it's been shown to help situations where a group exists both locally and in ldap which was causing issues for group memberships etc. However this config seems to totally mess up nscd which will be aware of the groups and all their members but will not flip the data around to say the user is a member of all it's remote groups. Initially it seems, given a fully available environment, to be exactly the same as [FOUND=return] which is an implict default between stages anyway. However apparently a lengthy ticket with Redhat resulted in the recommended use of that configuration.

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• Why won't my Windows 7 KMS key work on my Server 2008 KMS server?

  - by Ryan Bolger

  Our Microsoft volume licensing site was recently updated to include our Windows 7 and Server 2008 R2 KMS keys. We have an existing KMS server running on Server 2008 (not R2). In an attempt to be proactive about supporting the new OSes in our environment, I unregistered the old KMS key with slmgr.vbs and tried registering the new key. The registration failed with Error 0xC004F050. The description for that error was "The Software Licensing Service reported that the product key is invalid." What's wrong? I've checked and double checked that for typos against what is listed on the Volume Licensing website.

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• Configuring Apache for multiple clients

  - by Chris_K

  Last week I had a question here about suexec / suphp but I tried to accomplish too much. I'm going to narrow the scope a bit and try again. I'd like to configure a LAMP server to host multiple clients. I'd like it to seem (from the client's viewpoint) just like any other shared hosting environment. Web sites in their home directory, no need to muck around with file ownerships to get pages served, etc. It would seem that a configuration that involves suexec and suphp is the way to go(?) I'm specifically looking for a current/modern guide on how to accomplish this (I'll be using CentOS if it matters) and I'm afraid I need more than a link to Apache docs. Are there any good How-To's out there? The few I've found have been pretty out of date, but it is quite possible my search was weak.

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• Best practices for re-IP'ing / migrating servers and applications

  - by warren

  Some of this question would be highly application-specific, but what approaches do you take when looking to migrate applications from one server/platform to another and servers form one network segment to another? For applications that can't be re-IP'd (many exist in this category), the general answer is to nuke and pave (or extend a clusterable application, then remove the segment that needs to be "moved"). For "normal" applications (httpd, mail, directory services, etc), what are the checks ou perform before, during, and after a move to ensure the health of the migrated app/server? An example with Apache: backup httpd conf directory change httpd conf files to use new IP address of server change (or add) IP of server restart Apache verify web server still serves pages reboot server verify environment comes back up healthy

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• What are the challenges when my enterprise desires to move the processing component of an applicatio

  - by Berkay

  Assume that i have an enterprise accounting application that consists of a front-end interface, a processing tier, and a back-end database. This is an application that contains private business data, and thus is traditionally run in a secure private network environment within the enterprise. What are the challenges that appear when my enterprise desires to move the processing component of this application to a cloud computing data center in order to achieve greater scalability or to reduce IT costs ? Pls note: do i have to make significant changes to my own infrastructure to enable external access to formerly private resources? do i have to modify the application code to handle new network topology ? thanks, if you give your answers in a simple manner, really appreciated.

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• I can't access phpmyadmin on ubuntu after successfull installation

  - by Rana

  I have ready LAMP environment on my amazon Ec2 micro instance(Ubuntu). I have installed phpmyadmin distribution of ubuntu. selected apache2 as the server, then selected 'yes' for 'db-common-config' option. after its completed, I suppose to access it via http://server/phpmyadmin, right? But I can't access it. Is there any way to verify whether its been installed properly and running properly plz? Or do I have to do anything further? Thanks in advance.

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• PostgreSQL didn't install on Ubuntu 11.04

  - by peanut

  On a new copy of Ubuntu 11.04 server I am trying to install PostgreSQL server by apt-get install postgresql. But in the end of installation log I saw: Error: could not create default cluster. Please create it manually with pg_createcluster 8.4 main --start When I ran this command I saw this message: perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = "en_US:en", LC_ALL = (unset), LC_CTYPE = "UTF-8", LANG = "en_US.UTF-8" are supported and installed on your system. perl: warning: Falling back to the standard locale ("C"). Error: The locale requested by the environment is invalid. And no PostgreSQL server started :( What I need to do to become happy on this?

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• Virtual DNS recommended setup...

  - by luison

  Hi. We are new to virtualization which we are setting up with Proxmox VE (OpenVZ + KVM). I am a bit lost about the recommended DNS forwarder config specially in the OpenVZ (Virtuosso type) of enviroiment. Our intention was to have a small dnsmasq running in one of the VM acting as backup DHCP server and serving our in-office local addresses (and PCs) by an additional resolve.conf file which dnsmasq supports, but I've read that all VM should share DNS pointing to the host machine in which case it would make more sense having it there. My problem is that I would like to have as least as possible apps in the host so a reinstall of the environment (porxmox ve) and a machine restore can be as quick as possible. Does anyone have a similar setup? Does it make sense to have the 1st virtual machine running the local dns forwarder? Also... dnsmasq seems to want to have root permissions when running on an OpenVZ container... are there any work arrounds anyone knows for that.

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• Converting mp3 to ogg, suggestive?

  - by watain

  I'm thinking about converting my mp3 based music library to ogg, due to ogg being a free and open standard format (I guess there are other reasons too). As far as I know there's a chance of losing some sound quality when converting mp3 to ogg and vice versa (?). Would you suggest converting mp3 to ogg, or is it such a bad idea that I'd have to rip all CDs to ogg instead of converting? (if this would turn up I'd rip to flac anyway I guess). How would I be able to convert mp3 to ogg the easiest way, copying ID3-Tags too? (on a *nix-based environment) Best regards!

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• IMAP and Folder Subscriptions

  - by tom

  Hey guys I'm trying to figure out how folder subscriptions work with IMAP Clients and, in my case, in an Exchange 2007 environment. I have managed to deduce, I think correctly, that the folder subscription settings for individuals are stored centrally on the mailbox (At least, having configured 2 profiles on thunderbird, on 2 different machines, they subscribe to the exact same folders and dont display the exact same ones). The point of this being that I have had 2 or 3 different people in the past day report to me that they are having problems subscribing to certain folders, and having certain folder subscriptions remembered (particularly sub-folders). This is across both Thunderbird 2 and 3. can anyone suggest anything? Tom

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• Mouse cursor in Terminal?

  - by marienbad

  I use Mac OS X Terminal.app. But the answer to this would probably apply to any typical UNIX-ish terminal emulator in a graphical environment. Question -- what do I do to: Use my mouse cursor to click on a character-position in the current line of the terminal, and have the terminal's cursor jump to that spot? Typically, you have to hold down an arrow key to move to the correct cursor position. If you're pasting in a long string of text at the shell prompt, or working in an editor like VI, this can take a long time. I know editors have other navigation keys like jump-words, but I like my mouse cursor.

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• Screenshot before windows starts: without another computer?

  - by Nano8Blazex

  I'm pretty sure that this must have been asked before, but haven't found a duplicate question, thus I shall ask again... Is it possible to take a screenshot of my computer before the OS boots up WITHOUT an external computer or virtualization software like VMWare?? e.g. at the BIOS, or the "Windows is Loading" screen, even at the login screen? Is it possible to take screenshots of BSODs as well? EDIT: I'm using a desktop pc running Windows 7 Ultimate in a home environment. Thanks.

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• How can I register a custom protocol with xdg ?

  - by julien

  I've been struggling this morning trying to associate an application with a custom protocol, namely emacsclient and org-protocol. I'm calling this protocol from a webbrowser bookmarklet, and I get the following behaviour : In chromium, the "Launch Application" dialog comes up, and calls xdg-open org-protocol://... which ends up firing a new chromium frame. In firefox, I've tried setting network.protocol-handler.app.org-protocol to an empty string or my emacsclient path, anyhow I get the following error message : "Firefox doesn't know how to open this address, because the protocol (org-protocol) isn't associated with any program" without even showing any external application selection dialog. I'm not using any desktop environment, so I need to make this work strictly with xdg, however, despite reading the shared mime info spec etc, I still can't fathom a working configuration.

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• Autocorrect for "fat fingers" - MS Word

  - by Jamie Bull

  I'm wondering if anyone knows of a plug-in for MS Word which can handle key-presses of surrounding keys when typing at speed (rather like iPhone or Android autocorrect)? My use case is in transcribing interviews where I need to type quickly (even with the playback at half speed) - but I don't do this often enough to become a proficient touch typist. I will also be paying close attention to the text produced in subsequent analysis so I have a reasonable expectation that I'll catch any "hilarious" autocorrect errors. Any pointers to plug-ins which work at either a system level or within MS Word would be great. Even in an open source word processor at a pinch, though I'd miss the MS Word environment and my macros. Thanks.

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• HOWTO Catch/Redirect all outgoing e-mails on Win2K and Redhat Enterprise

  - by John

  Background: I am integrating two separate web application that are developed in ASP .NET and JSP/Struts. As such, they are hosted on two different server technologies, namely Win2K3 and Redhat Enterprise Server 5.5. Problem: There is a copy of production data in my test environment with real e-mail addresses. I need to test the e-mail functionality of these applications, but I do not want them to send out actual e-mails. Is there a way to catch and redirect all outgoing e-mails? Ideally, I would like to send all outgoing e-mails to another e-mail (i.e., [email protected]) so my testers can look at them. Thanks for the help in advance!

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