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• Dhcp server change fail after successful importing to new machine

  - by Tathagata

  I transfered the configs of a dhcp server from one server to another both running Windows Server 2003 R2 following http [://] support.microsoft.com/kb/325473. The new server has a statically configured ip(outside the scope) like the old one. Stopped the server on the old, and started up in the new server (authorized too) - but when I ipconfig /renew from a client its network interface fails with all 0.0.0.0 (or 169...*). I read somewhere I need to reconcile the scope to sync the new registry values ('ll try this tomorrow). What other troubleshooting steps can I take other than these (which didn't help)? Things work fine when the old server resurrects and the new one is taken down. The new server showed there was no requests for offer.

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• Multiple subnets behind SonicWall TZ 180

  - by Derek

  We have a SonicWall TZ180 that acts as a VPN endpoint. Right now it has one WAN IP address and a /24 assigned to the LAN interface. Our mail cluster administrator asked if it was possible to add a second private class C behind the VPN. This second subnet would be available to the other network and then we would use address objects and acls to limit access. Is this possible? I read up on PortShield but I don't know if that's what we would need to use because we're pushing all data out of one physical port into a Cisco switch that has VLANs already set up. Addendum: It appears that PortShields will do what I want with only one limitation; it requires a direct 1-1 relationship of portshield to physical port. This would then limit us to 4 PortShields on 1 TZ180. Is there a better solution than this?

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• Linux Mint on VirtualBox has no internet connection

  - by Martin

  Physical machine: Mac Mini running OSX 10.7.5 Virtual machine: Linux Mint 15 Cinnamon 64-bit Using VirtualBox. I am trying to make the linux connect to the internet. For some reason I can access the host computer with 192.168.2.100. Its set up to show me a web-page that says "It works". This I can see from the linux. But I cannot reach anything on the internet. Either FireFox says "Unable to connect" or when I run nslookup google.com I get connection timed out; no servers could be reached. My setting on VirtualBox under the Network tab are: Bridge Adapter vnic0 promiscouos Mode:Allow All`. If it makes a difference, the host has a WiFi connection to the home router. What have I missed?

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• getting the following error in installing qt creator through software center

  - by I'll sudeepdino008

  getting the following error in installing qt creator through software center. The following packages have unmet dependencies: qtcreator: Depends: libqt4-help (>= 4:4.7.1) but 4:4.8.1-0ubuntu4 is to be installed Depends: libc6 (>= 2.15) but 2.15-0ubuntu10.2 is to be installed Depends: libgcc1 (>= 1:4.1.1) but 1:4.6.3-1ubuntu5 is to be installed Depends: libqt4-declarative (>= 4:4.7.4) but 4:4.8.1-0ubuntu4.2 is to be installed Depends: libqt4-designer (>= 4:4.7.1) but 4:4.8.1-0ubuntu4 is to be installed Depends: libqt4-network (>= 4:4.7.1) but 4:4.8.1-0ubuntu4.2 is to be installed Depends: libqt4-script (>= 4:4.7.1) but 4:4.8.1-0ubuntu4.2 is to be installed Depends: libqt4-sql (>= 4:4.7.1) but 4:4.8.1-0ubuntu4.2 is to be installed Depends: libqt4-svg (>= 4:4.7.1) but 4:4.8.1-0ubuntu4.2 is to be installed Depends: libqt4-xml (>= 4:4.7.1) but 4:4.8.1-0ubuntu4.2 is to be installed Depends: libqtcore4 (>= 4:4.8.0) but 4:4.8.1-0ubuntu4.2 is to be installed Depends: libqtgui4 (>= 4:4.8.0) but 4:4.8.1-0ubuntu4.2 is to be installed Depends: libstdc++6 (>= 4.4.0) but 4.6.3-1ubuntu5 is to be installed

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• Accessing non-port80 web server using IPv6

  - by logain

  In a normal IPv4 network, I can go into any browser such as Firefox and browse a server on a IPv4 address not hosted on port 80: (add http:// - Super user stops "new" users from adding links)192.168.42.6:8080/ This accesses the server on Port 8080 on 192.168.42.6. However, if I try this with a IPv6 IP, I get no luck. This tries to access port 8080 on fe80::520:ff0f:ece0:1 : http://[fe80::520:ff0f:ece0:1]:8080/ Firefox will automatically "fix" this URL to: http://[www.fe80::520:ff0f:ece0:1.com]:8080/ which does not help me access it at all. So either I am doing something really wrong OR there's something really wrong with IPv6. Couldn't find anything that even remotely helped on the Internet. (And yes, there is a server running on the IPv6 in question)

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• Is there a way to force/manage file locking in windows?

  - by JPbuntu

  I have a 2 Windows machines networked and I am having trouble with simultaneous access to files. I would like only one user to be able to open a file at a time, which I thought was automatic, using file locks.... if the program used to access the file is locking the file. I believe the problem I am having is some of the programs I use, don't lock the file, and there for can be modified simultaneously by multiple users, which is very much not desired. Currently I am having this problem with only two computers, although as soon as I can figure out a solution to this problem the network is going to be expanded to 6 computers, which will include Windows 7, Vista, and XP, as well as a central file server (Samba). Is there a way to ensure that all files opened in windows get locked? Any suggestions are appreciated, thanks.

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• Windows Server 2003: Remapping external domain

  - by Chuck Harmston

  We're playing a going-away prank on a coworker, and would like to use a rule in our internal DNS server to redirect techcrunch.com to point at one of our internal development servers. Basically, I'd like to accomplish the same thing as adding a line to a Linux /etc/hosts file, only for the entire network. I have access to our DNS server. How would you go about doing this? I created an entry in the reverse lookup subnet with the 'Host Name' of techcrunch.com and the 'Host IP' of our development server, a Linux box running Debian on which I've created a virtualhost to handle requests to techcrunch.com. It doesn't appear to be working, however, and my expertise has reached its limit. Thanks!

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• virtualbox port forwarding - firewall config

  - by Roose

  i have a ubuntu host system with virtualbox running a windows server. In Virtualbox i have configured the network with a NAT interface and port forwarding for the RDP deamon running inside the vm. That works really well - i can connect to the windows rdp service over the internet. TCP *:3389 - *:3389 Now i like to restrict the access to the rdp service to only 3 public ip addresses and have no idea how to do that via iptables / shorewall. Something like: ACCEPT net:91.x.x.x fw tcp 3389 (shorewall rule) isn't working. Would be glad for any hint.

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• Windows 7 Ult machine can see XP Pro but not vice versa

  - by Chadworthington

  My new Windows 7 Ult. PC can attach to my work laptop and pull files but my work laptop cannot find my Windows 7 on the network. Is there some sort of limitation going on here? Before I got the new XP machine, my old XP Pro PC could pull files from the XP Pro laptop but not vice versa. The common thread seems to be that the work laptop cannot see other PCs, Windows 7 or not. Could it be because that PC is on a work domain? When I pull files from the work PC, I am prompted for domain credentials, which I provide.

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• Ping6 fail on linux

  - by michelemarcon

  I have 2 linux box configured with IPv4. I have tried adding IPv6 to them. I have issued this commands on box1: ip -6 addr add fd32:2d7f:f3c1::1/48 dev eth0 And I get this: inet6 addr: fd32:2d7f:f3c1::1/48 Scope:Global Then I have issued this command on box2: ip -6 addr add fd32:2d7f:f3c2::1/48 dev eth0 Back on box1 (command/response): ping6 fd32:2d7f:f3c1::1 is alive! ping6 fd32:2d7f:f3c2::1 ping6: sendto: Network is unreachable Why doesn't box1 ping box2 (of course, also box2 can't ping box1)?

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• VPN service for 4in6

  - by Deshene

  I have a local network with internet access. But unfortunately IPv4 internet connection speed is limited to 1mbps, which is realy sad. Fortunately I have a native IPv6, and there is no connection speed limit over IPv6. So, in order to get a good internet connection I made a plan: connect to the VPN-service over IPv6, and pass all IPv4 traffic through IPv6 tunnel, or something like that, I think you get the idea. I suggested to use service like HideMyAss.com, but unfortunately they don't support IPv6. The question is: Is there any existing VPN service that will make my dreams come true, and is easy to use, which I could connect over PPTP or OpenVPN (I want to set up connection to VPN in my router settings).

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• xen hotplug can't add vif to eth0: operation not supported

  - by John Tate

  I am new to xen and I am trying to get a domU running but I am having problems with it. I think my network card might not support bridging which is bizarre. This is the error I get when trying to create the domU [root@hyrba ~]# xm create sardis.secusrvr.com.cfg Using config file "/etc/xen/sardis.secusrvr.com.cfg". Error: Device 0 (vif) could not be connected. Hotplug scripts not working. All the xen kernel modules are loaded... xen_pciback 52948 0 xen_gntalloc 6807 0 xen_acpi_processor 5390 1 xen_netback 27155 0 [permanent] xen_blkback 21827 0 [permanent] xen_gntdev 10849 1 xen_evtchn 5215 1 xenfs 3326 1 xen_privcmd 4854 16 xenfs I get this error in /var/log/xen/xen-hotplug.log RTNETLINK answers: Operation not supported can't add vif2.0 to bridge eth0: Operation not supported can't add vif2.0-emu to bridge eth0: Operation not supported

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• Social Media Stations for Partners

  - by Oracle OpenWorld Blog Team

  By Stephanie Spada One of our exciting additions to this year’s Oracle Partner Network Exchange @ OpenWorld are Social Media Stations.  Partners have the opportunity to get customized, face-to-face expert advice on how they can better engage their customers and find new prospects online using social media tools.When: Sunday, September 30Time: 3:00 p.m.–5:00 p.m.Where: Moscone South, Esplanade levelWhen: Monday, October 1Time:  9:30 a.m.–6:00 p.m.Where: Moscone South, OPN Lounge, Exhibitor levelEach customized social media consultation will take only 25 minutes. Here’s how it works:·    Partners check in with a Social Media Rally coordinator who will assess needs and make the right connections for each session·    Partners go to the Photo Station, where a headshot will be taken that can be used on social profiles, Websites or for articles and posts across the Web·    Partners meet with the One-2-One consultants who will walk them through how they’re using social media today and what next steps could beSocial media channels/methods discussed can include Google+, Google Alerts, Google Analytics, Facebook, LinkedIn, Search Engine Optimization, Twitter, and more.  With so many choices, partners can decide how to focus their time.To get the most out of the Social Media Stations, partners should:·    Wear appropriate attire for the headshot photo·    Bring log-in information for social platforms they want to discuss·    Come prepared with questions for the One-2-One consultation so session time can be maximizedFor questions, or to schedule a session ahead of time, partners should send an email to: [email protected].

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• Copy Ubuntu distro with all settings from one computer to a different one

  - by theFisher86

  I'd like to copy my exact setup from my computer at work to my computer at home. I'm trying to figure out how to go about doing that. So far I've figured this much out. On the source computer run dpkg --get-selections > installed-software and backup the installed-software file Backup /etc/apt/sources.list Backup /usr/share/applications/ to save all my custom Quicklists Backup /etc/fstab to save all my network mounts Backup /usr/share/themes/ to save the customization I've done to my themes I'm also going to backup my entire HOME directory. Once I get to the destination computer I'm going to first do just a fresh install of 11.10 Then I'll copy over my HOME directory, /etc/apt/sources.list, /usr/share/appications, /etc/fstab and /usr/share/themes/ Then I'm going to run dpkg --set-selections < installed-software Followed by dselect That should install all of my apps for me. I'm wondering if there's a way/need to backup dconf and gconf settings from the source computer? I guess that's my ultimate question. I'd also like any notes on anything else that might need backed up as well before I undertake this project. I hope this post is legit, I figured other people would be interested in knowing this process and I don't see any other questions that seem to really document this on here. I'd also like to further this project and have each computer routinely backup all the necessary files so that both computer are basically identical at all times. That's stage 2 though...

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• How can I shut down all my Virtual Machines when my UPS kicks in?

  - by Tim

  I have a Dell T610 running ESXi4, an APC Smart UPS 1000VA and a local "console" machine running Vista and the vSphere 4 Essentials pack. A dedicated management network is in place between the T610 and the Vista machine. We have 4 VMs: SBS 2003, Server 2003 running Terminal Services, and two XP Machines. Ideally, when the UPS is forced to use battery power [for a set number minutes], I would like to gracefully shutdown all the VMs, then the ESXi, then the console machine. The latter two are not strictly a priority, but the VMs within ESXi are. Google provided lots of deprecated scripts that used to work on ESXi 3.x or similar, however I am unable to find what they were deprecated by. What do I need to be able to do this? I have Powerchute Express as supplied with the UPS, but would be willing to pay for software if required.

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• Remote desktop solution for controlling a remote OS X machine in Linux

  - by synic

  The "server" (the host I'm trying to connect to) is Snow Leopard. The "client" is Ubuntu 10.04. I want something like a remote desktop server running on OS X that I can connect to and control from the Linux machine. Something cheap or free would be best. Something that always runs on the OS X machine so that I never have to attach a monitor or a keyboard. I don't want to use VNC, because, well, VNC sucks over this network. Any ideas?

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• ubuntu 12.04 - keep getting "Server not found" for some websites

  - by android developer

  ever since last week , i've noticed that many websites cannot be accessed , and it doesn't matter if i use firefox or chromium as a web browser . as an example of such a website is: http://tutorials-android.blogspot.co.il/2011/05/layout-animation-in-android.html all i get is a "Server not found" error page . sometimes after a few refreshes it works just fine . i've checked it on a windows OS machine that is connected to the exact same LAN network , and the website is shown just fine . i've also checked the /etc/hosts file and it doesn't contain anything suspicious . what is going on? how can i fix it?

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• Debian crashed, file system is read-only and cannot backup - How Do I find/mount a USB drive?

  - by Spiros

  We have a Debian server (vm's) here at work and the server crashed after a power failure. I can only boot the system in maintenance mode, and the whole file system is set to read only. I can run fsck though maintenance mode, however I would like to get a backup of some files before I do. Problem: I cannot access the net since there is no network connectivity in maintenance mode, and for some reason I try to add a USB flash drive to the computer but I can't find it through the console. Question: how to you find/mount a usb drive on Debian? I have tried several resources from the internet but nothing worked. Is there any other way I could get a backup of my files? I cannot start networking since the filesystem is set to read only. Any help would be appreciated.

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• Full Access user removed from NTFS Share

  - by TJ

  I don't know how it happened but for some reason one of the sub folders in the Network shares (call the share Market and the sub folder Support) no longer has any groups or users with full permissions on the share. The Market top level has users and groups with these permissions and everything is set up for folder inheritance but it's not inheriting permissions from the top level and only has modify permissions for the single group that is in the Access List for the sub folder Support. I can see items in the sub folder but I can not add, edit, or delete permissions to the Support folder. What are my options so I can once again manage permissions?

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• Apache: How can I make my localhost on 192.168.1.101 visible from 192.168.1.102?

  - by takpar

  Hi, I've setup a Apache web server on Ubuntu Linux. I can see http://localhost well. But I can't see localhost from other machines in my network using IP address: http://192.168.1.101 I added the lines below to my apache conf: `Allow from 192.168.1` but it did not work. It says "the connection has timed out". what should i do? PS: adp@adp-desktop:~$ sudo netstat -ap | grep apache tcp 0 0 *:www *:* LISTEN 10581/apache2 tcp 0 0 localhost:www localhost:46017 ESTABLISHED 10586/apache2

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• Cannot connect Windows 7 PCs to a Windows 2011 SBS domain

  - by Alexander Miles

  I can connect XP machines just fine to our new domain, however, I get the following error when I try to bind any Windows 7 box on our network to the 2011 SBS domain: An attempt to resolve the DNS name of a DC in the domain being joined has failed. Please verify this client is configured to reach a DNS server that can resolve DNS names in the target domain. I am wondering if part of the problem might be related to the fact we still have our Win2k DC active (and running DNS) until this server is set up for good? Any help on this would be much appreciated.

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• Cannot resolve a single A Record from client machine

  - by Alex

  I set up a simple Bind server on my VPS and it is working properly. The problem occurs with my local windows machines, which are connected to internet through the home router. I created an A-record named 'dev' and it is invisible from my local network for some reason, though people from other locations can resolve dev.mydomain.com. Ironically, dev.mydomain.com cannot be resolved for myself only. If I add another A-record, say, 'gamma' then it becomes visible from my local windows machines instantly. So this is just for that particular 'dev' name. The only difference is that I had dev.mydomain.com server on another IP but that was a month ago; all nameservers have been changed since then. I tried to reboot my router and flushed dns cache on windows machines: no result. Thank you in advance.

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• Multiple SMTP servers in Thunderbird3

  - by ldigas

  Situation: 2 mail accounts - each with its own pop3 and smtp servers, accesed normally. Except, when using Vodafone mobile network (you know, those usb or pcmcia cards ...) in which case mails are send using Vodafone's SMTP server. I configured both accounts in thunderbird for their default servers, and then added under multiple identities, another called Name of User (mobile) for each account. And it works. Except, I don't like the fact that when I send mail using mobile smtp server it sends them under Name of User (mobile) <-- the mobile part being important. I could of course, delete that part, but then when sending mail, I'd have no way of differenting between the two. They'd both look as Name of User email@address_of_user.com. So, what would be the easiest way to solve this ? It is not a major problem, but it is annoying.

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• Is there any way to distribute x264 encoding jobs across multiple computers (to increase the encodin

  - by Breakthrough

  Does anyone know of a current, active solution to encoding x264 videos across many computers (via the network) to increase encoding FPS? I heard in the past of the project x264farm; unfortunately, it is not actively developed anymore, and isn't compatible with newer x264 builds. I'm looking for a current solution, which is compatible with newer builds of x264. Just to note this, I'm a Windows user, so I'm only looking for Windows solutions (or at the very least, Linux). I've also seen the ELDER distributed encoder, but the quality varies depending on the settings you use - I'd prefer a solution similar to x264farm as noted above (the documentation outlines the encoding process), but one that is compatible with new(er) x264 builds, and is preferably actively developed. Final Edit: Unfortunately, the bounty for this question has expired, and I haven't found a decent solution for this. So if at any time someone finds a new, distributed encoding solution for x264 (or any h.264 coded, for that matter) - please answer this question! I'd love to discover an ideal method to make this work!

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• How do you explain ethernet cable problems to non networking people?

  - by Bryan McLemore

  We've recently been doing a large network migration in our datacenter. We've had a few cables in this start to deliver really bad pings (in excess of 500ms on a LAN) before they could be replaced. The cables we were replacing weren't made the best. They where all hand made and the runs were so short on some of them that the bend radius was definitely too tight. Some of them ran in bundles right in front of the heat exhaust of the power supplies. The cables were running ok until we started pulling the ones surrounding them out. Then a few started having the problem I mentioned above degrading performance and causing reliability issues. I'm trying to figure out the best way to explain this to non networking people. Is there any documentation that people could recommend or other methods?

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