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  • Local or public NTP servers?

    - by BeeOnRope
    For a relatively large network (thousands of hosts) - what are the arguments for and against running a locally managed (pool of) NTP server(s) (perhaps periodically set via some public NTP server) and having all other hosts on the network use that (pool of) NTP server(s) versus having all hosts simply use public NTP servers directly, say via ntp.pool.org? Aside from the pros and cons, What is typical best practice today?

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  • Connecting two servers together - How to?

    - by Chris
    Is it possible to connect two servers running for example Windows Server 2003/2008 together. For example they are seen on the network as one server with the combination of all HDD from each server? Example: \\Server1 - 1 x 1tb hdd \\Server2 - 1 x 1tb hdd I would like users of the network to be able to store their documents on both servers for load balancing. So basically a RAID between the two servers? Any help would be appreciated.

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  • I have an internal machine with apache that I can access by IP Address but not computer name

    - by Parris
    I have ubuntu machine running lampp. While on the machine I can type localhost or the computers name to access htdocs. From another machine I can only access the machine via its IP Address. This just started happening recently when someone rearranged the network cables and removed a hub sitting between the machine and the network, which makes me think it wasn't all the stable to begin with anyways. Any suggestions on where I should start looking?

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  • how do I make two internal networks speak with one another

    - by Nick M.
    I have two internal networks that are connected to each other 10.10.10.1 and 10.10.11.1 I am trying to make devices on the 10.10.10.1 network be able to access the devices on the 10.10.11.1 network and vice versa. My questions is what is the networking term used to "bridge/route" traffic between the two networks making each other available to one another. Also what is the process in getting this going using iptables?

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  • Windows CE Netbook wireless connection problem

    - by VG
    My Windows CE Netbook connects to wireless network at work but can't connect at home. I tried it at work just to test that the WiFi on the Netbook does actually work and it was fine (if a bit slow) It can see the connection, and the signal, tries to "Associate" with my home network but "Fails" it will sometimes retry Encryption is set to TKIP Authentication WPA-PSK EAP Type TLS I have tried all sorts of other settings but there seems to be very little to try?? My Modem is a DLink Wireless ADSL Router G604T Would appreciate some help if possible.

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  • Powershell Registry value to be used as variable

    - by CWL
    I am looking on how to return one value from the registry. I only want the AGENTGUID value from this command. $reg=reg query "\\$computer\HKLM\SOFTWARE\Wow6432Node\Network Associates\ePolicy Orchestrator\Agent" /v Agentguid $reg will return this as one line. I only need {F789B761-81BE-4357-830B-368B5B3CF5E5} HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Network Associates\ePolicy Orchestrator\Agent Aentguid REG_SZ {F789B761-81BE-4357-830B-368B5B3CF5E5}

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  • Not able to connect to game using "Game Ranger"

    - by Daud
    Every time the game is about to start it says that I have lost my connection to EA's servers with the following message: Make sure your network adapter and network cable is plugged in. Although my connection works perfectly but when it comes to online gaming it messes up everything. My System specifications: Intel(R) Core(TM) i5-2410M CPU @ 2.30GHz 4096MB RAM Windows 7 Ultimate 64-bit Internet connection of 2Mbps Can you help me to sort it out?

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  • Run batch file with custom drive mappings

    - by mwolfe02
    I want to create a "mini virtual environment" to run a program. The only difference between my normal environment and the virtual one would be the drive mappings. I have an X: drive mapped to \\some\network\location I have a program myapp.exe that expects the X: drive to be mapped to C:\local\path I need to keep my X: drive mapped to \\some\network\location throughout the process I would like to be able to run the following batch file and not have it affect the current environment: subst X: C:\local\path myapp.exe

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  • Mobile Internet Problem

    - by alskndalsnd
    I am using mobile dial up on ubuntu. However, SOMETIMES even though I am connected to the ISP, I do not have any entries in /etc/resolv.conf. I often restart network-manager or networking hoping it will change but normally it doesn't do any good. and by connected I mean I can see that the network notification icon has switched to a few bars indicating connectivity). Anyone know a good solution around this?

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  • Should I join technicians' laptops to our domain?

    - by TooFat
    I have been charged with distributing about a dozen laptops to technicians at our company that will spend almost all of their time in the field not connected to our network. They may come in for quarterly meetings and may or may not connect their laptops to the network. My question is what are the benefits or disadvantages of joining these laptops to our domain and under these circumstances (given what I describe above) what would you do?

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  • What is the probable failure - no BSOD, no event log, monitors sleeping, force reboot required

    - by Tyler
    Every 3 to 15 days, my PC freezes. This typically happens when the computer is idle, I'm coming home from work, back from vacation, etc. It's never happened while using my computer. The monitors are in power save mode The Caps Lock light on the (wireless) keyboard doesn't work Ctrl-alt-del has no effect, mouse (wireless) has no effect The hardware reset button and single press of power putton have no effect Computer does not appear on the network No BSOD, no memory dump Event logs have no errors or indications of problems near the time of crash. Only messages after reboot indicating that there was a reboot without a clean shutdown. Windows is set to never put the computer to sleep (just the display) Here are the vital stats of the build: OS Windows 8 Pro 64-bit CPU Intel i5-2400 Mobo Intel BOXDP67DE Micro ATX GPU MSI N460GTX Cyclone768D5/OC RAM CORSAIR XMS3 8GB (2 x 4GB) CMX8GX3M2A1333C9 PSU SeaSonic X Series X650 Gold System Drive Samsung 840 Pro 256 GB SSD Data Drive 2 x Western Digital WD20EARS 2TB in hardware RAID 1 Optical Lite-On DVD burner IHAS424-98 And here is the story of how the problem developed and what I've done to diagnose: January 2011, system built with Windows 7 64-bit, runs great. March 2011, Intel replaced the mobo because of the bad sata controllers. October 2012, upgrade to Windows 8 (problems start shortly after). January 2013, system freezes and causes network to fail for the whole house. Unplug the network cable and other devices and PCs can use the internet. Plug it back in, internet goes away for everyone. Reboot and everything is fine. March 2013, install Intel Gigabit CT PCI-E NIC, disable mobo nic in bios. Network strangeness goes away. Freezes are less frequent. Memtest shows no problems (20 passes). Early June 2013, replace Antec PSU with SeaSonic PSU. Mid June 2013, replace OCZ Vertex 2 SSD with Samsung SSD. Late June 2013, get frustrated and hope the community has some good ideas (I'm running out of budget to replace parts). My next plan of attack is setting "Turn off display" to Never and using a screen saver to see how that reacts on the next freeze. It makes me sad to waste power for up to 15 days though. Has anyone out there seen a problem like this? Any ideas on what kind of malfunction would act this way? Ideas of other diagnostic steps to take?

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  • question about IP address

    - by baddogai
    i know how IP basically works, and knows that an IP address composed of a network ID portion and a host ID portion, but when I type a IP address ,say "8.8.8.8" into the web browser, i DIDN'T supply any subnet mask information, so how does the browser know where the dividing line is between the network ID and host ID? since 8.8.8.8 may mean 8.8.8.8/8, 8.8.8.8/24 etc. In a nutshell, the IP address I supplied is ambiguous.

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  • How to combine AWS and dedicated external servers?

    - by rfw21
    I have an extensive network of servers all currently hosted on AWS EC2. For reasons of cost I plan to gradually migrate to dedicated servers where possible. So: How can I best combine AWS and non-AWS servers in my network? Ideally, I should be able to assign internal IP addresses to the external servers, include them in AWS security groups and ensure that all private traffic between my AWS servers and external servers is secure.

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  • Running Radius on a Novell Backbone

    - by YsoL8
    Hello I am a rookie network engineer and I've been asked to create a secure wireless system intergrated with an existing network. So far I'd decided to use 802.1x secuity with a Radius enabled server over a Novell backbone. My question is: does Novell still support this type of server setup? I heard rumours it is at the end of it's supported life and I'd like some confirmation. Also can I get some recommendations on better backbone / server providers. Cheers

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  • What's a good(affordable) business router that can limit traffic to certain machines(ips/ports)?

    - by Ryan Detzel
    We are using the basic Verizon router but it sucks so we're looking for a new one that allows us to limit users and our hadoop cluster to certain limits. Our problem is one person can start downloading something and kill the network and every hour we download logs into our cluster but it floods the network unless we rate limit it. Ideally we want to be able to say: total: 35 mbps Hadoop Cluster (15 mbps) Phones (1 mbps) Office(25 people) (19mbps but no one machine can have more than 5mbps)

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  • Issues in Fedora detecting on board NIC card

    - by Vivek27
    Basically I have two NIC cards (on-board + Added in PCI slot) on my Linux machine running Fedora 12.By default the OS detects the NIC card in the PCI slot but it fails to detect the on board network card.Following are few details of the same Linux Vivek 2.6.32.26-175.fc12.i686.PAE #1 SMP Wed Dec 1 21:45:50 UTC 2010 i686 i686 i386 GNU/Linux ifconfig -a doesen't show the on board NIC card.Any thoughts for it please? Since it is also related to network configuration. I posted it here.

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  • Cant see my wireless internal card on BackTrack 5

    - by Tomer
    I have BackTrack 5 R3 installed on VMware and its on bridged connection so it gets its own ip on my network and it works I get internet connection but there is no ethernet cable connected yet somehow when I do iwconfig I cant see wlan0 and no other wireless card but etho is connected to the network somehow.... cant it be that eth0 is my wireless card which somehow misconfigured? Its an intel centrino advanced n 6205

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  • Enterprise Wireless Authentication without Active Directory

    - by ank
    We are in the process of redoing our wireless access network and would like to know if there is any method to get Windows clients/users access to the network using 802.1x WITHOUT having an Active Directory server for authentication and WITHOUT installing additional software on each and every client. Note that we already use Radius servers, LDAP servers (all on CentOS). Users employ a variety of clients including Windows, Mac, Linux, Android, iOS.

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  • Free, web based alternative to Visio?

    - by Lars
    I have used Visio to map out my network structure, and have used the export function to create an HTML page that is searchable by IP, hostname etc. This is a really nice tool and I use it often. However, I would like for users who do not use Internet Explorer to be able to use the search features. What are some alternatives to Visio here? I want to draw a network diagram where objects are searchable. Thanks!

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  • Add the "SAMBA File Server" role to a server running SCO Unix?

    - by I.T. Support
    We're trying to get network access to a hard drive on a server running SCO Unix from Windows Servers. I beleive we need to add the role "SAMBA File Server" to the server so we can mount the drive as a network share that we can access from Windows. Is it possible to add the SAMBA role to a SCO Unix operating system? Are there any gotchas or concerns? Thanks

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  • OS X: How to force traffic through a specific SOCKS proxy on a per-app basis?

    - by GJ.
    I'm running a certain desktop app (actually via AIR if it makes any difference) which doesn't have any built-in proxy configuration settings. I need to get all traffic just from this app directed through a secure SOCKS proxy. This implies I can't use the global network preferences, as these would affect many other apps. Is there any way to force all network communication through a given SOCKS proxy on a per-app basis?

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