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• How do I log in to the ubuntu 10.04 server using grub2 from a remote computer/terminal with GUI running

  - by Steve Cornall

  I upgraded my server from ubuntu 8.04 to 10.04. It now uses the grub2 bootloader. In 8.04 from the grub log-in page I could select the option log in to server and thereby connect through SSH directly to my server and have the GUI running. I can currently log in to my upgraded server now from any of my 8.04 machines using grub1 with the GUI running. I cannot log in that way from a machine that uses grub2 and ubuntu 10.04. I want to upgrade my entire network to ubuntu 10.04 but cannot until I know how to log in to the network from grub2 with the gui open. I have exhausted all my ideas as to the solution to this problem. Any help would be most appreciated. Thank-you

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• Hyper-V with a single host NIC

  - by Cylindric

  I'm trying to create a simple Hyper-V test machine, and am having more problems than expected with the basic networking. All other hypervisors I've used (vmware server, vmware player, virtualbox) allow me to use the default single NIC in my machine, and then create guests with "bridged" mode so they appear like a normal machine on the network. With the Hyper-V server, when I create a Virtual Switch and set it to "external", I lose all network access from the host. The solutions I've seen online seem to rely on complex configurations requiring multiple vSwitches and RRAS on the host to get it going. Is it really that complex to get a simple, single-NIC Hyper-V server going, in such a way that I can still use the host? The host is Windows 8.

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• ethernet problems in ubuntu 12.04

  - by h4x0rj3ff

  so today i popped out my hdd with ubuntu on it and put in a fresh hdd and installed win8 (wanted to try it). i got everything installed, upp and running and decided to go back to ubuntu (for obvious reasons lol) but when i boot back into ubuntu my internet connection will not connect. i booted into a live cd of ubuntu and it still would not work. i thought i blew up my onboard port so i booted back into win8 and the internet worked without flaw. so i booted back into my ubuntu install and i have a usb to ethernet adapter that im using but i still cant get my onboard to connect. any ideas?

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• Windows Server VPN: Error 720

  - by Nikita Zernov

  I want to created vpn server on Windows Server 2012. First I installed Active Directory domain services, then Remote Access server role. Opened Gettng Started Wizard, entered configure just vpn. Then in Routing and Remote access selected Configure and Enable Routing and Remote Access. There selected custom configuration, vpn. Then created user in active directory and allowed network access permission. After this I tried to connect to vpn from windows 8. I get the following error: Error 720: A connection t the remote computer could not be established. You might need to change the network settings for this connection. What should I do?

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• How do I change the domain name of my AD DS? [closed]

  - by Gaate

  I recently set up a server with AD DC and used a mydomain.local address for it. I now would like to be able to access the server through remote desktop from outside my local network. So I have purchased a domain name that I have set up with my router for DDNS and forwarded to the IP of my server. I was wondering a few things. A) Is there a way I can forward the DDNS to point to my current AD DC x.local address so I wouldn't have to change the domain to log in from outside of local network? B) If there is not a way to do what I mentioned above, what is the easiest way to change the Domain Name (mydomain.local) in my AD DC? Should I completely remove it or is there a way to change it? I am using windows server 2012.

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• Remotely initiate windows updates

  - by TetraFlash

  I have a network with countless workstations on it and the windows updates are done through WSUS in push cycles to allow us to use a generic image and configuration and avoid network congestion. I have a number of workstations in storage that are connected once a month for a few days to recieve updates, however not all of them fall within their push cycle. I want to avoid going to each machine and clicking "check updates" as that would require me to connect a monitor, mouse and keyboard. Is there a way (preferably through powershell but im open minded) to initiate a check and install of updates on a remote system? Lets say for 1 system at a time right now, I can add a file reader and a look later. NOTE: the configuration of the WSUS server is above my pay grade, im simply being asked to ensure these machines are updated. Thanks for any help or hints

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• need help setting up a VPN for remote computer connection

  - by Chowdan

  I am on a low budget right now. I am currently in the process of starting a computer company. I am in need of a VPN network so I can run Dameware tools for working on customers/partners computers remotely. I will be working with Windows and some Apple and linux machines. I have desktop with an AMD Phenom II 965BE(currently running stable at 3.8Ghz) processor with 8 GB of ram and a radeon hd 6870(i know graphics aren't too useful) and about 1.5TB of HDD space. I am attempting to create a network out of my office based all on one machine that would also be secure for me to remotely connect to my partners computers so when they have issues I would be able to connect and do the diagnosing and repairs remotely. What types of servers besides a VPN server would i need to create this? I have access to all Microsoft products so I can run Windows Server 2012, Windows Server 2008 R2, or any other Microsoft Software. thanks for the help all

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• How to specify the order of startup scripts (CLI)?

  - by bcsteeve

  Startup really confuses me. It seems various methods for starting things happen in different locations all over the place. But is there a way to define the order they are loaded? Specifically... I have an issue where Plex Media Server (PMS) can't be discovered by clients if the server's VPN connection is established prior PMS starting. It was driving me nuts, but I discovered that I could solve the problem by shutting down PMS, shutting down the VPN, turning on PMS and then turning on VPN. I'm not exactly sure how PMS auto-loads itself at startup, but the VPN is something I defined by editing: /etc/network/if-up.d/slickvpn with the following: #! /bin/bash REQUIRED_CONNECTION_NAME="Wired connection 1" VPN_CONNECTION_NAME="myvpn" activ_con=$(nmcli con status | grep "${REQUIRED_CONNECTION_NAME}") activ_vpn=$(nmcli con status | grep "${VPN_CONNECTION_NAME}") if [ "${activ_con}" -a ! "${activ_vpn}" ]; then nmcli con up id "${VPN_CONNECTION_NAME}" fi That's a script I found somewhere (I think on this site) when looking for help autoconnecting a VPN. So I guess /etc/network/if-up.d/ scripts are initiated prior to the PMS service. How can I flip that? Or other solution?

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• process ksoftirqd consumes permanent 15% CPU load [closed]

  - by markus

  Possible Duplicate: Anyone else experiencing high rates of Linux server crashes during a leap second day? The process ksoftirqd/0 uses permanent 15% CPU on our debian squeeze server. 4 root 20 0 0 0 0 R 15.0 0.0 850:59.17 ksoftirqd/0 I already read that this can have various reason like Full harddisk or high network traffic. In our case we do have more or less low network traffic and enough space on hard disk. How can I analyse what causes ksoftirqd/0 to use permanently 15% CPU?

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• Kvpn on ubuntu 11.10 is stuck on 'Connecting'

  - by xupv5

  I recently installed open-vpn and it's gui, Kvpn, on my ubuntu system but after I load the configuration file and click 'Connect' it just runs through and gets stuck on 'Connecting', never actually getting connected. How do i get around this or what might i be doing wrong? The profile was set up using a .conf file and the network i'm trying to connect to needs only a username and password. I'm on a wi-fi connection, with one network card(also behind a university firewall, i suppose). Any help regarding connecting to a vpn on ubuntu would be much appreciated. Thanks!

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• Running a dhcp server on windows 7 ultimate

  - by nikhil

  I'm trying to get my HP T5740 thin clients to connect to my local network without much success. I asked a question here but haven't got any response. I think that question should have been posted on serverfault instead. I was thinking that the problem seems to be that the thin clients aren't able to get an IP address when they are connected and I can't manually set it. So if I was to somehow set up a dhcp server on the network with my server that runs a 32 bit version of windows 7 ultimate edition. How do we set up a dhcp server in windows?

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• Suggest Cisco Router for a small company of 60-100 Users

  - by user69154

  Trying to find the right router to use - we'd like to go Cisco. We have ~60 programmers that do alot of remote server work. Will grow to 100 programmers by the end of the year. We've talked to companies that sell Cisco routers. While they make recommendations, we feel that the sales guys may be selling us an overkill solution. What kind of company (that is not linked to sales of routers) can provide a service to recommend the right kind of router for our company? There are lots of network engineers out there, but am looking for some company that focuses on advising a network solution. Any suggestions of companies are welcome.

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• How to connect to two VPN connections at the same time in Mac?

  - by Sallar Kaboli

  Hello, I have a problem with my vpn connections, my ISP requires me to connect to a private vpn server of it's own in order to connect to internet, im connected to main network via WiFi, but i also want to connect to another VPN network of my choice (to bypass internet limitation in my country of course), i am able to do that in Windows, but its not working in Mac OS X Snow Leopard second vpn connecion type is PPTP / CHAP How can i do that? as u see in the pic, both vpn's are connected, first one is for main internet which is working properly , second one is also connected but its not affecting anything. its just connected. http://www.freezpic.com/pics/a5231c3e80501a3c25430f43c1ef5856.png

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• For very beginning startup: home server or EC2?

  - by StCee

  The micro instance of Amazon EC2 only has ram of 613MB, my laptop got 8GB. And I suppose likewise the processing power of my computer would be better than the micro instance. My question is, what are the considerations in deciding to host yourself or on Amazon EC2, especially for a really baby startup? For example, would network speed be a problem? My computer broadband network is 100Mbs up to 1Gbs. What would Amazon compare to this? My site at these moment would just host some images and perform some php requests. I would probably also use cloudflare but seems it increases the dns lookup time considerably... And of course the overall objective is to make the best user experience.

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• Migrating IBM ClearCase to TFS

  - by Bob Hardister

  Using the Team Foundation Server Integration Tools Platform. Versions: ClearCase: 7.1.1.2 Team Foundation Server: 2012 RTM Integration Tools: 2.2.20314.1 OS: Windows 2008 R2 ENT SP1 I was able to do a simple example migration of a few files by using the following approach: Using a dynamic view Creating a view shortcut drive (i.e. Z:\) Running the tools as a UI client (not as a windows service) Running the tools UI in user mode (do not “Run as Administrator”) Using the CC detailed history adapter Selecting the view shortcut drive (i.e. Z) on the Tools UI Connect to CC dialog Selecting the “Detect Changes in CC” option on the Tools UI Connect to CC dialog Changing the DisableTargetAnalysis value to True on the Tools UI configuration view I have yet to perform actual migrations for real projects, but will update this blog as I do.

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• What is an Automated way to Access a Virtual Machine's Webserver from its Host Machine? [closed]

  - by Jonnybojangles

  As a Web-Developer what is the most efficient (automated) way to connect to a Virtual Machine (VM) running a development webserver from it’s Host Machine (the machine running the VM) when you do not have control over the networks (home, Startbucks, work, etc) you are connected to? Currently I start my VM (a VirtualBox VM running CentOS), run ifconfig to determine the VM’s current IP. I then take that IP and map it my Host machine’s host file so that I can access the VM’s webserver from the Host. I feel that this is not an efficient way to connect to my VM’s webserver because each time I connect to a new network (a few times a day) I need to repeat the IP look up and host file update, and sometimes restart the VM's network service.

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• Can OpenVPN be set up so the server doesn't have interface that is part of the VPN?

  - by BCS

  I'm looking to set up a VPN (OpenVPN is my first choice but I'm not stuck with it) in such a way that the server that hosts the VPN is not visible from within the VPN. That is; any packet that a client sends via the VPN interface will get delivered to another client's VPN interface or get dropped. In the other direction, the server shouldn't have a VPN interface at all and normal network operations shouldn't be able to send packets on the network. Can this be done? All the docs I have found have assumed that clients will connect via DHCP (this requiring that the server connect at least to that extent) but I can't think of any reason that a VPN couldn't use static IP's or that the DHCP server couldn't be implemented inside the VPN (see edit) server without setting up a VPN interface on the server. Edit: Based on the link on bridged mode from Phil Hollenback's answer it seems that OpenVPN does in fact have the "internal DHCP server" that I'm thinking of.

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• monitor internet bandwidth on LAN

  - by Dimal Chandrasiri

  I'm on a office network and there are around 12 PCs that are connected to a switch and then to a Prolink Router. Now the Internet connection is very slow and I'm the one who manage all the computers. I want to monitor bandwidth usage of each computer on the LAN. how can I achieve this using my computer. I cannot install any software on the client computers other than mine. I tried wireshark but, it only shows my network usage so there is no use with the data I get from it. Is there any specific software that I can use within my PC to get the bandwidth details of other computers. I'm on a windows 7 x64bit PC with admin privileges. Thank you.

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• Can one use Airport (Time Capsule) with an external DHCP server?

  - by DNS

  I currently share my DSL connection using a wireless router with DHCP disabled, and dnsmasq running on a Mac Mini serving DHCP & DNS. This setup is important because I have clients doing PXE boot, and I need the control over DHCP that dnsmasq provides. There is also a Time Capsule on the network that's used purely as a backup device; its wireless functions are disabled. The wireless router is starting to get a little flaky, and since it doesn't support 802.11n I'd like to replace it. Rather than buying a new router, I'd like to just use the Time Capsule. But I see no way to disable its DHCP server; when I set the connection type to PPPoE, it insists on serving DHCP. Is there any way to use Airport PPPoE with a DHCP server elsewhere on the network?

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• My ethernet connection is not working but it is detected by my computer

  - by smithy545

  I'm setting up an old computer with ubuntu server 12.04. I wiped the drive and went through the installation fine but afterwards the ethernet would not work. It's physically connected to the router and the card is recognized by lspci(SiS 900) but it won't connect at all. I've plugged in and installed the drivers for a wifi adapter and it's worked with the same router. Just so you know I've turned it on and off plenty of times. Any help would be appreciated.

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• Can I create an Infrastructure access point from built-in WiFi (as opposed to Ad-Hoc) on Windows XP?

  - by evilspoons

  I want to use my Windows XP laptop as an access point. What I am trying to achieve is possible under Windows 7 with a myriad of utilities, but the wireless driver stack was different before Windows 7 and those specific APIs don't exist on XP. The reason behind me wanting to do this is that I would like my Android phone to be able to connect via WiFi to a network that is only hard-wired (reverse tethering). Unfortunately, my Android device (Galaxy S Captivate) does not support ad-hoc networks without a serious amount of screwing around. Is it possible to create an "Infrastructure" network with my Dell Latitude D830's built-in WiFi - a "Dell Wireless 1395 WLAN Card", which I am assuming is probably rebadged Broadcom, or is there some fundamental difference between a wireless adapter and an access point that would prevent this?

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• Battery died when updating from 12.04 to 12.10

  - by Aksh BriZmohun

  I started the update and went to sleep but I forgot to plugin AC adapter. When i woke up, laptop was off. I plugged in the AC cord and turned it on. Ubuntu boots and it is on 12.10 but may items are missing and neither gnome nor unity seem to work properly. It's also very slow and freezes sometimes. Is there a way to correct all those issues ? or revert back to 12.04 then re update to 12.10 without losing my data ?

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• How can I connect Ubuntu Server 10.04 virtualbox without router from my local computer?

  - by kjaja70

  I installed vbox I installed ubuntu server 10.04 on my vbox I want to connect from my win 7 desktop with putty to my server. On the settings in my vm vbos I choose - network. enable network - bridged adapter. I fount in ifconfig the ip address. Putty cant connect to the server. Why? How can I connect Ubuntu Server 10.04 virtualbox from my local computer? p.s. I dont have router - I have modem. Thanks a lot.

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• How can I install a scanner by IP?

  - by user54266

  I'm trying to install a scanner by IP the same way you would install a printer by IP. I don't want to install the horrible HP Solution Center software but I don't know how to install a network scanner without the software. I'm having a hard time googling this because when I search for things like "install network scanner" or "install scanner by IP" all the results are for things like Angry IP Scanner which is clearly different than what I'm trying to get. Thanks in advance. This is for Windows Vista, but Windows 7 instructions will do.

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• SmartSync Printing In ASP.NET Scheduler Reporting v2010.1

  Check out this new SmartSync printing feature of the ASPxScheduler that helps you to print a scheduler report in a Tri-fold style. Hows It Work? If several scheduler report controls are placed on the same report, the scheduler adapter on the report coordinates how the controls will iterate through the schedule data. The view control on the report that has the smallest period becomes the 'principal' or 'driving' control. It starts the iteration, and other controls on the page are...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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