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• OS X will not register newly installed network adapters

  - by Chris

  I have purchased an Edimax 7318USg and tested it on a Windows machine (works). The installation process for the software for this adapter runs smoothly. However, OS X simply does not recognize new network adapters. When you go to System Preferences/Network, a new network adapter should be present/there should be an alert. This is not the case. Why might this be? Is there a setting I may reset to force the operating system to recognize this? Thanks!

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• Teamed network cards on a Proliant Server

  - by Matt

  We have 4 network cards in a Proliant server with Server 2008R2 running Exchange 2010, with 1 card set to a static IP address and the other 3 set to DHCP. I just need some clarification as I have not teamed network cards. Do all the network cards need to have a static IP when I set as a team. The connection that has the static IP is the IP that I need to use for the Server. Is it possible to set the teamed cards to the same static IP or do I have to change the static IP to another IP then use it for the teamed IP? I will be using HP Network Configuration Utility to set this up.

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• How to Load Balance 2 Internet Connections on a Windows 7 machine?

  - by Jimmy Chandra

  It's sort of related to this particular question, but that one is on Mac. I am looking for similar solution on Windows 7. I have 2 network connections: (Connection A) Wireless terminal connecting to ISP A (3G / EVDO internet provider) (Connection B) Broadband wired connection connecting to ISP B (Cable internet provider) Both has access to the internet. When I try connecting to a website and checking the networking tab on my Task Manager, I only see the network traffic being routed to only Connection A. Is there a way to make the computer to utilize both network (in a sense using all the bandwidth available from both the Cable ISP and the 3G / EVDO ISP) at the same time? If so, what do I need to do to set this up ... on Windows 7? Here is a bit more info on my network connections (ipconfig /all): PPP adapter Wireless Terminal: IPv4: aa.bb.ccc.ddd(preferred) Subnet mask: 255.255.255.255 Default Gateway: 0.0.0.0 DNS: aa.ee.f.ggg aa.ee.f.hhh Primary Wins: jjj.ii.k.l Secondary Wins: jjj.ii.k.m Ethernet adapter LAN: IPv4: 192.168.1.100 (connected to a router by wired that itself connect to a cable modem) subnet mask: 255.255.255.0 Default gateway: 192.168.1.1 (the wireless router) DHCP: 192.168.1.1 (the wireless router) DNS: xxx.yy.zz.ww rr.sss.t.uuu For my own privacy, I don't believe the actual number matters, the patterns are representative of the ip numbering scheme...

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• Debian, 2 NICs load-balancing or agregating with one same gateway

  - by pouney

  Hi, I have one server, with double NICs connected to one switch with the same gateway. Behind the switch we have internet. |Debian| - eth0 - switch - internet - eth1 - same I don't understand how to load-balancing between eth0 and eth1. The inbound/outbound traffic always use eth1. This is the config: # The primary network interface allow-hotplug eth0 auto eth0 iface eth0 inet static address 192.168.248.82 netmask 255.255.255.240 network 192.168.248.80 broadcast 192.168.248.95 gateway 192.168.248.81 allow-hotplug eth1 auto eth1 iface eth1 inet static address 192.168.248.83 netmask 255.255.255.240 network 192.168.248.80 broadcast 192.168.248.95 gateway 192.168.248.81 Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.248.80 0.0.0.0 255.255.255.240 U 0 0 0 eth1 192.168.248.80 0.0.0.0 255.255.255.240 U 0 0 0 eth0 0.0.0.0 192.168.248.81 0.0.0.0 UG 0 0 0 eth1 0.0.0.0 192.168.248.81 0.0.0.0 UG 0 0 0 eth0 Ips aren't real, it's just for the example. Anybody have an idea on correct routing to use eth0 on 192.168.248.82 and eth1 on 192.168.248.83 ? I have many example for multiple gateway but here it's the same. Thanks all. Regards

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• Windows 2008, 2 NICS, routing problem

  - by Srodriguez

  Dear all, I've some questions regarding basic routing, can't seem to relate to other questions posted in this site. My architecture: Windows 2008 server with 2 nics in the server. NIC1: IP 10.198.6.xxx, submask 255.255.252.0, gateway 10.198.4.xxx NIC2: IP 192.168.168.xxx, submask 255.255.255, no gateway defined both NICS are just connected to two separate switches, with other computers. I want to be able that all the requests that have a destination of 192.168.168.xxx are redirected to the NIC2, all the other to the NIC1. I know it's possible to do it with the route command, but normally we have to specify a gateway? (route ADD 192.168.168.0 MASK 255.255.255.0 ???) How can this be archived? Thanks a lot for your help!

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• realtek lan driver problem - win 7

  - by tango _123

  Hi, my new notebook (ACER TM 8371) with Win 7(x32) professional as OS, has strage behaviour with respect to LAN. when I plug or unplug my charger cable, or my notebook goes in stad-by, or just a do nothing, the netwrok connection is lost. All the energy savings functionbality have been in-activated. if i check the network adapter information, it says "a network cabel is unplugged or corrupted", but it is not true.....the cable is in and it is not corrupted (i tried several which works on other machines). if a tried to di-habilitate and hence re-habilitate, it allows di-habilitation and not to further re-habilitate (it says "no driver for the network card" are available). in some cases, also, the driver disappears (i cannot see it anylonger). if i restart the notebook, everything comes back to normality, but.....today in 3 hours i had to restart 6 times!!! can anyone help me? win 7 says the driver is the last one, so no need to update it. here are some techinical information aboiut network card and driver: Name [00000015] Realtek PCIe GBE Family Controller Adapter type Ethernet 802.3 Product type Realtek PCIe GBE Family Controller Installated YES ID device PNP PCI\VEN_10EC&DEV_8168&SUBSYS_02831025&REV_02\4&266E4C4F&0&00E2 last reset 20/11/2009 11:27 Index 15 Service name RTL8167 I/O Port 0x0000FF00-0x0000FFFF Memory address 0xE2500000-0xE2500FFF Memory address 0xE1400000-0xE140FFFF IRQ Channel IRQ 18 Driver c:\windows\system32\drivers\rt86win7.sys (7.3.522.2009, 164,00 KB (167.936 Byte), 28/08/2009 22:12)

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• Centos VM serving multiple public IP: how to configure network interface?

  - by Glasnhost

  I have a Centos 5.6 VM (Vsphere client) already responding to two different public IPs on eth0 and eth0:1 and I'm trying to add eth0:2. I copied the eth0 config file and restarted the network service. I don't understand which other steps are needed... ifconfig eth0 Link encap:Ethernet HWaddr 00:40:46:B9:00:41 inet addr:10.1.12.10 Bcast:10.1.12.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:163371837 errors:77 dropped:0 overruns:0 frame:0 TX packets:168210961 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1891221045 (1.7 GiB) TX bytes:855899500 (816.2 MiB) Interrupt:59 Base address:0x2000 eth0:1 Link encap:Ethernet HWaddr 00:40:46:B9:00:41 inet addr:10.1.12.11 Bcast:10.1.12.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:59 Base address:0x2000 eth0:2 Link encap:Ethernet HWaddr 00:40:46:B9:00:41 inet addr:10.1.12.12 Bcast:10.1.12.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:59 Base address:0x2000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:188976973 errors:0 dropped:0 overruns:0 frame:0 TX packets:188976973 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:2015642664 (1.8 GiB) TX bytes:2015642664 (1.8 GiB) more /etc/resolv.conf nameserver 10.1.12.1 route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 10.1.12.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0 0.0.0.0 10.1.12.1 0.0.0.0 UG 0 0 0 eth0

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• What is the fall off of subsecond throughput on Ethernet Network Interfaces

  - by Kyle Brandt

  On a network interface, speeds are given in term of data over time, in particular, they are bits per second. However, in the uber-fast world of computing -- a second is kind of a really long time. So for example, given a linear falloff. A 1 GBit per second interface would do 500MBit per half second, 250Mbit per quarter second etc. I imagine at certain units of time, this is no longer linear. Perhaps this is set by ethernet frequencies, system clock speeds, interrupt timers etc. I am sure this varies depending on the system -- but does anyone have more information or whitepapers on this? One of the main reasons I am curious is to understand output drops on interfaces. Even if the speed per second is much lower than the interface can handle -- perhaps there are spikes that cause drops for only small numbers of milliseconds. Perhaps various coalescing would hide this effect -- or perhaps increase it on the receiving interface? Do queues make a difference here? Example: So given if this is linear down to the MS we would have 1Mbit/MS, and if Wireshark isn't distorting what I see, should I see drops when I have a spike beyond 1Mbit?

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• Video streaming and internet browsing on different bands/frequency

  - by user47207

  I have a Netgear WDNR37000 which allows clients on a 2ghz or 5ghz to access the internet and see every client and device on the network. I have a computer with two nics, one that is in the 2ghz range and the other on the 5ghz range. My specific problem is that I would like to serve my video streams (hulu, ps3mediaserver, playon) to my ps3 on the 5ghz band while internet browsing is routed to the 2ghz band. This is so that the video streams aren't affected by general internet use. While the easiest solution would be to disable internet access on the 5ghz apn, I would like to know of a solution that would not require that.

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• What command line tools for monitoring host network activity on linux do you use?

  - by user27388

  What command line tools are good for reliably monitoring network activity? I have used ifconfig, but an office colleague said that its statistics are not always reliable. Is that true? I have recently used ethtool, but is it reliable? What about just looking at /proc/net 'files'? Is that any better? EDIT I'm interested in packets Tx/Rx, bytes Tx/Rx, but most importantly drops or errors and why the drop/error might have occurred.

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• Two network cards latency

  - by Ross W

  I'm trying to setup a network architecture where one network is a low-latency low-bandwidth tcp control system (GBit), the other is a high-bandwidth udp (maybe tcp) network that could get saturated (GBit). If I have two NICs inside a server running Linux. What happens to the low-bandwidth/low-latency network when the high-bandwidth gets saturated. Does each Ethernet card get the same amount of priority inside the kernel or would the low-latency network suffer from the high-bandwidth being saturated?

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• How do I setup Windows Server 2008 as NAT with one NIC?

  - by Hultner

  How would I setup Windows Server 2008 as NAT router with only one nic? I only have access to a server with one nic and I can't add a nic to the server.

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• Using local proxy to specify used NIC on Windows 7?

  - by Nico

  I'm running Windows 7 and have 2 NIC installed, both are connected to the Internet (nic#1 LTE, nic#2 DSL). Windows 7 will only allow me to specify a binding order and a metric on which interface to chose but i can't specify this on an application level. My Idea was to use a local proxy server and use the proxy server whenever i want to use nic#2. I tried wingate and free proxy, both applications will let me chose the interface i want to use but this setting seems to have no effect? This is how i configured the applications: http://imageshack.us/photo/my-images/69/freeproxysettings.jpg/ http://imageshack.us/photo/my-images/811/wingateproxysettings.jpg/ Is what i'm trying to do in anyway possible?

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• Does HyperV allow binding physical NIC on virtual machine with promiscues mode?

  - by MadBoy

  I have HyperV on Windows 2008 Enterprise R2 installed with some Virtual Server running that I wanted to have ISA or NTOP to monitor traffic. I've added additional physical NIC to server and wanted to use this NIC as traffic monitor (I've enabled port mirroring on switch). I can see on physical machine that runs HyperV a lot of traffic coming to the NIC so port mirroring works fine. However in virtual machine even thou I've assigned that NIC to only this one and only server it sees 0 packets. In VWMare Workstation it worked without problem and I could see mirrored traffic on VM. Should this be possible or HyperV is crippled?

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• Differentiate VMware network adapter from physical network adapters

  - by Venkat

  I have to differentiate between the real addresses and the VM addresses using any Windows API. I'm using Getadaptersaddresses API to populate a list of ipaddresses for the local machine. I need to extract only the "real" addresses apart from the addresses associated with the VMware network adapter and other addresses(auto-configuration and tunnel adapter addresses) I've not been able to find any API or any flag to differentiate this. Is there any way this can be done? PS:The IfType flag in the IP_ADAPTER_ADDRESSES structure returned by Getadaptersaddresses doesn't help me differentiate between VMware addresses and the real addresses

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• link state notification in Java

  - by wwh37

  Is there any way in Java to receive event notifications whenever link state changes on a computer (connected, disconnected, up, down, etc)? Thanks!

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• Is Winpcap able to capture all packets going through a Gigabit NIC without missing any packets?

  - by Patrick L

  I want to use Winpcap to capture all network packets going through a Gigabit NIC of a server. Assuming that I am able to utilize the network link up to 100%, the maximum network speed is 1000Mbps. If we exclude the TCP/IP headers, the maximum TCP data rate should be roughly 940Mbps. Let's say I send a 1GB file through the NIC at 940Mbps using TCP destination port 6000. I use Winpcap to capture all network packets going through the NIC and then dump it to a pcap file. If I use Wireshark to analyze the pcap file and then check the sum of packet size for all network packets sent to TCP port 6000, am I able to get exactly 1GB from the pcap file? Thanks.

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• How to test Laptop NIC's throughput using a router and PC - without be bounded?

  - by 0x90

  My setup includes: Cisco router An i-7 PC running windows A laptop with high speed wifi nic, which I want to check its throughput. I would like to run an FTP server on the PC. hook the router over cables to the PC. I would like to have the PC create its own subnet accessible via the cisco router that would be hooked directly to the PC's nic. From the laptop I want to connect via wifi to the PC's wireless router and connect to the ftp server on the PC. is it possible? how do i connect the router to the PC nic and make it broadcast a subnet via wifi for my laptop to connect to? how do i configure an FTP server to operate only on this subnet?

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• Disable IPV6 on specific NIC via PowerShell using a Com Object on Windows Server 2008 R2?

  - by user1256194

  I need to script some Windows Server 2008 R2 builds, preferably in PowerShell. I need to disable or uncheck IPV6 on a specific NIC (the same NIC every time). Currently, I have to set it manually. I do not want to disable IPV6 completely for the entire server other things may use that in the future. Is there an object I can reference in a PowerShell command specifying my NIC "Intel(R) PRO/1000 MT Network Connection" and disable IPV6? Unfortunately, Group Policy is not an option says the boss. I've tried finding an appropriate WMI object via "PowerShell Scriptomatic" but failed to find the difference between an enabled setting versus disabled on the Intel NIC. Thanks in advance.

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• Realtek RTL8168/8111E onboard NIC not recognized - the everlasting problem?

  - by Nikioko

  I used the newest vendor driver for my onboard NIC (board: ASUS M5A97 Pro) and those sites to get it running on kernel 3.0: http://www.twm-kd.com/linux/realtek-rtl81688111e-and-ubuntu-linux/ The problem now is, that this doesn't work with either kernel 3.1 or 3.2: https://code.google.com/p/r8168/issues/detail?id=6 My question is: does anyone have a solution to get it run on the newest kernel? Or is this a plaque I have to carry forever?

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• Real server, Multiple IP Addresses, HyperV Virtual Server, How to partition IPs across real and Virtual NICs

  - by Steven_W

  This is a slightly difficult problem to explain without same basic background information - I'll try and refine the question later as necessary Originally, I have a single hosted server (Win 2008R2) with the following range of 8 IP addresses. - Single NIC - IP: x.x.128.72 -> x.x.128.79 - Subnet: x.x.255.192 - GW: x.x.128.65 After installing Hyper-V and setting up a single virtual server on the same box, I then wanted to assign one of the IP addresses to the virtual server, leaving everything else running normally. -- Firstly, I tried using the "External" network, but (even after setting IPs on the "Virtual Adapter" similar to Here but struggled to get networking running at all. I needed to keep the server running (otherwise I would have spent more time pursuing this approach) Q1 ... Was this a sensible thing to do ? Should I have carried on down this route ? -- I then decided to try different approach - Set the HyperV network to "Internal" (visible to Management OS) - Physical NIC - IP: x.x.128.72 -> x.x.128.75 - Subnet: x.x.255.192 - GW: x.x.128.65 - Virtual NIC - IP: x.x.128.78 - Subnet: x.x.255.252 - GW: x.x.128.72 ... { The same as the IP of the physical NIC ) - Virtual OS-NIC - IP: x.x.128.77 - Subnet: x.x.255.252 - GW: x.x.128.78 ... { The same as the IP of the host virtual-NIC ) -- Surprisingly enough, this approach actually worked, and I was able to connect from all the following: - Internet to/from physical NIC (x.x.128.72) - physical NIC (x.x.128.72) to virtual-OS-NIC (x.x.128.77) e.g. testing via ping + FTP - Internet to/from virtual-OS-NIC (x.x.128.72) -- The problem I have is that this approach seems to only last for a short while (a few hours). After this time, it seems that I lose the ability to connect from Virtual-OS-NIC to/from the internet (but I can still connect from the host-OS to the virtual-OS and from the host-OS to the internet) I have re-tested this a couple of times with the same results ... I leave the server on for a few hours (e.g. overnight), and when I come back in the morning, the Virtual-OS loses the ability to route to the internet -- I'm not quite sure what to look at next (or whether I'm going about this completely the wrong way ) One "possible relevant item" is that the host-OS is also running RRAS (Routing and Remote Access), but this is only to run a simple VPN -- Q2 - Wheat should I be looking at next ? (Any good references / recommendations of what to try) Would appreciate any thoughts or comments (even if you tell me I'm going about this the wrong way)

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• Download - Upload is too slow on Centos

  - by Mehdi

  My download/upload in server and out of server is too slow (around 50 KB/s !) ! Did I miss some configuration ? Some information: CentOS release 6.3 uptime load average: 0.17, 0.32, 0.37 Memory free -m total used free shared buffers cached Mem: 24009 21988 2021 0 806 18098 -/+ buffers/cache: 3083 20926 Swap: 4095 28 4067 lshw -C network *-network description: Ethernet interface product: 82574L Gigabit Network Connection vendor: Intel Corporation physical id: 0 bus info: pci@0000:02:00.0 logical name: eth0 version: 00 serial: 00:25:90:70:17:4a size: 100MB/s capacity: 1GB/s width: 32 bits clock: 33MHz capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=off broadcast=yes driver=e1000e driverversion=1.9.5-k duplex=full firmware=2.1-2 ip=108.175.8.123 latency=0 link=yes multicast=yes port=twisted pair speed=100MB/s resources: irq:16 memory:fb900000-fb91ffff ioport:e000(size=32) memory:fb920000-fb923fff ethtool ethtool eth0 Settings for eth0: Supported ports: [ TP ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supports auto-negotiation: Yes Advertised link modes: Not reported Advertised pause frame use: No Advertised auto-negotiation: No Speed: 100Mb/s Duplex: Full Port: Twisted Pair PHYAD: 1 Transceiver: internal Auto-negotiation: off MDI-X: off Supports Wake-on: pumbg Wake-on: g Current message level: 0x00000001 (1) Link detected: yes dmesg |grep e1000e dmesg |grep e1000e e1000e: Intel(R) PRO/1000 Network Driver - 1.9.5-k e1000e: Copyright(c) 1999 - 2012 Intel Corporation. e1000e 0000:02:00.0: Disabling ASPM L0s e1000e 0000:02:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 e1000e 0000:02:00.0: setting latency timer to 64 e1000e 0000:02:00.0: irq 33 for MSI/MSI-X e1000e 0000:02:00.0: irq 34 for MSI/MSI-X e1000e 0000:02:00.0: irq 35 for MSI/MSI-X e1000e 0000:02:00.0: eth0: (PCI Express:2.5GT/s:Width x1) 00:25:90:70:17:4a e1000e 0000:02:00.0: eth0: Intel(R) PRO/1000 Network Connection e1000e 0000:02:00.0: eth0: MAC: 3, PHY: 8, PBA No: FFFFFF-0FF e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: None e1000e 0000:02:00.0: eth0: 10/100 speed: disabling TSO e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: None e1000e 0000:02:00.0: eth0: 10/100 speed: disabling TSO e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: None e1000e 0000:02:00.0: eth0: 10/100 speed: disabling TSO e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: None e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: None e1000e 0000:02:00.0: eth0: 10/100 speed: disabling TSO e1000e 0000:02:00.0: eth0: 10/100 speed: disabling TSO e1000e 0000:02:00.0: eth0: Unsupported Speed/Duplex configuration e1000e: eth0 NIC Link is Up 10 Mbps Full Duplex, Flow Control: None e1000e 0000:02:00.0: eth0: 10/100 speed: disabling TSO e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: None e1000e 0000:02:00.0: eth0: 10/100 speed: disabling TSO e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: None e1000e 0000:02:00.0: eth0: 10/100 speed: disabling TSO e1000e 0000:02:00.0: Disabling ASPM L1 e1000e 0000:02:00.0: eth0: changing MTU from 1500 to 9000 e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: None e1000e 0000:02:00.0: eth0: 10/100 speed: disabling TSO e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: None e1000e 0000:02:00.0: eth0: 10/100 speed: disabling TSO e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: None e1000e 0000:02:00.0: eth0: 10/100 speed: disabling TSO

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• How do I set up DNS with nic.io to point to an AWS EC2 server?

  - by Chad Johnson

  I purchased a domain one week ago via nic.io. I have elected to provide my own DNS [because they provided no other option]. I'm trying to point my .io domain at my EC2 server instance. I've allocated an elastic IP and associated it with the instance. I can SSH into the instance and access point 80 via the IP address just fine. The IP is 54.235.201.241. nic.io support said the following: "You have selected to provide your own DNS and therefore if there is an issue with the set-up of the name servers you will need to contact your DNS provider." So, I created a Hosted Zone via Route 53 in AWS. This created NS and SOA records. I then set the Primary and Secondary servers at nic.io's domain admin page to the SOA record domains. Additionally, I set the optional servers to the NS domains. I did this two days ago, and I can't access the server via the domain. I ran a DNS check here...still not sure what I need to do: http://mydnscheck.com/?domain=chadjohnson.io&ns1=&ns2=&ns3=&ns4=&ns5=&ns6=. I have no idea what I'm supposed to do. Does anyone have any ideas?

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• How to connect a VM running on an ESXi host to that host via a VMKernel NIC?

  - by Zac B

  Say I have an ESXi (5.0) host that runs a Linux distribution which hosts iSCSI targets, which contain the images for other VMs which the host will run. When it's used, I'll start the host first, then the iSCSI server, and then refresh all storage targets/HBAs in order to see the provided shares as online. I know it's a strange puzzle-box solution, but I was told to implement it. The ESXi host itself has a gigabit NIC which connects to the outside world. The guest OS (CentOS) supports VMXNet3, however, and if I can, I'd like to use its VMXNET3 NIC to host iSCSI for the ESXi host. How should I go about doing this? I went to create a new virtual network, and selected "VKernel", as it suggested that I use that type of network for SAN traffic, but it is apparently not set up for "self-hosted" SAN hosts, as the new network did not appear as an option to attach the CentOS box's VMXNET3 NIC to. How should I best connect an iSCSI host out to its "parent" ESXi host, if I need a) a 10gb connection, and (optionally) b) a VMKernel network for it?

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• Getting Server 2008 R2 to ignore all traffic from Internet-facing NIC, leaving it to a VM

  - by Wolvenmoon

  I got in to Server 2008 R2 via Dreamspark and would like to start learning on it. I don't have much option but to put it on a system sitting between the Internet and my home LAN due to electricity bills and the fact that 3 computers in an 11x11 space in 102 degree weather is pretty stygian. Currently I use a ClearOS gateway to manage everything, what I'd like to do is take my server 2008 R2 box, which has two NICs, and drop it at the head of my network. I'd want Server 2008 R2 to ignore all traffic on the external facing NIC and pass it to a virtual ClearOS gateway, and to put all its Internet traffic through its other NIC - which will face the rest of my network and be the default gateway for it. The theory is to keep the potentially vulnerable Server 2008 R2 install as tucked behind a Linux box as possible, without sacrificing too much performance. This is a home network that occasionally hosts dedicated game servers and voice chat servers, so most malicious activity is in the form of drive by non-targeted attacks, however, I don't trust Windows Server because I don't know the OS well enough, yet. So, three questions: How do I do this, am I going to be reasonably more secure doing this than if I just let the Server 2008 R2 rig handle all the network traffic and DHCP (not an option), and should I virtualize the Server 2008 R2 rig instead and if so in what? (Core 2 Duo e6600 w/ 5 gigs usable RAM)

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