mellanox nic

First, configuration scenario: Due to machine aging, considering the reliability of the machine, decided to replace the server, because the old server is 3 network (telecommunications, Unicom, mobile), so on the new machine needs to configure 3 network connection 3 GatewaySecond, the configuration steps1. Configure the IP address on the three NICDescription: Use 192.168.1.x 192.168.2.x 192.168.3.x instead of 3 public network[Email protected] ~]# cat/etc/sysconfig/network-scripts/ifcfg-eth1device

VMware cloning CentOS modifies Linux MAC addressDevice eth0 does not seem to be present, delaying initializationFailure background:In VMware Workstation, a virtual machine that has completely cloned an existing CentOS is discovered and the NIC is not started after booting. Restart the Network service and find the error message "Device eth0 does not seem to be present, delaying initialization."Www.2cto.comCauses of failure:Because of the cloning of vir

Root cause:Reverse route checking is enabled by default on LinuxIf 2 network cards are inside a LAN, then the server may find the gateway from eth0 or eth1, if a packet from eth0 into the gateway on eth1, then from the eth1 is out of the way, it will not pass. The reverse route check asks where it came from to go back.Turn off reverse route checking (replace the network card name of the second third row, depending on your situation):echo 0 >/proc/sys/net/ipv4/conf/all/rp_filterecho 0 >/proc/sys/

Small white Record:After installing Xshell, connect CentOS6.3 baseservice version, not connected, service network Restart only two OK,Baidu find information--Get the conclusion: after the network card is set, the default is not turned on, you need to set onboot= "Yes".Begin:Enter the system,LandingEnter Vi/etc/sysconfig/network-scripts/ifcfg-eth0,Note: After VI there is a space,then enterThen use the arrow keys to move the cursor to the back of the onboot (of course, I have modified this, before

To edit the network card configuration file[Email protected]/]# vi/etc/sysconfig/network-scripts/ifcfg-eno16777736hwaddr=00:0c:29:b8:40:8dType=ethernetBootproto=dhcp # #dhcp: Auto get ip,static: Static Ip,none: No protocolDefroute=yesPeerdns=yesPeerroutes=yesIpv4_failure_fatal=noIpv6init=yesIpv6_autoconf=yesIpv6_defroute=yesIpv6_peerdns=yesIpv6_peerroutes=yesIpv6_failure_fatal=noname=eno16777736Uuid=5e66154a-c337-4dfa-a555-9b8ae0bd27edOnboot=yes # #启动network服务时是否启用该网卡, yes is enabledRestart Netw

SCP upload Ifenslave.tar package, unpack tar xvf ifenslave.tar Install this software 650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/6E/E8/wKioL1WLlqegWN-DAABC_iLKvlM727.jpg "title=" 1.png " alt= "Wkiol1wllqegwn-daabc_ilkvlm727.jpg"/>3. Modify the configuration file vim/etc/network/interfacesTo comment out unwanted messages like eth0 or eth1.650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/6E/E8/wKioL1WLlxuRSJ3SAAGf4tkFfpM788.jpg "title=" 2.png " alt= "Wkiol1wllxu

The function of the following code is to obtain the corresponding local IP address according to the name of the incoming network card, the local net address obtained before is always 127.0.0.1 the following is the correct LAN address char* hostname_to_ip (char * ifaname) {struct Ifaddrs *ifaddr, * IFA; int family, s; Char Host[ni_maxhost]; std::string str; if (Getifaddrs (ifaddr) = =-1 ) {//Perror ("Getifaddrs");//exit (exit_failure); } for (IFA = IFADDR; IFA!) = NULL; I

When the Vmbox virtual machine is configured, the operation of replicating virtual machines is often used for convenience, but the replicated virtual machines are not able to connect to the local area network even if they adopt the way of bridging networks.Later on-line check, can re-set ETHFirst look at the file /etc/udev/rules.d/70-persistent-net.rules content similar to the following: #thisfile Wasautomaticallygeneratedbythe/lib/udev/write_net_rules#program,run bythepersistent-

Added a new NICCat/etc/udev/rules.d/70-persistent-net.rulesView the network card information as follows# PCI Device 0x1022:0x2000 (Pcnet32)subsystem== "NET", action== "Add", drivers== "? *", attr{address}== "00:0c:29:aa:49:a0", attr{type}== "1", kernel== "eth*" , name= "Eth0"# PCI Device 0x1022:0x2000 (Pcnet32)subsystem== "NET", action== "Add", drivers== "? *", attr{address}== "00:0c:29:aa:49:aa", attr{type}== "1", kernel== "eth*" , name= "Eth1"The eth1 in the second paragraph is both our newly

#include Linux get NIC Information

When you do the experiment, you may need more than one virtual host, if you have to install from scratch is certainly unreasonable. There are two ways to do this: the first is to copy a virtual host directly into the folder and then import it into VMware.650) this.width=650; "Src=" Http://s2.51cto.com/wyfs02/M00/84/53/wKiom1eNgtbzFlrUAAAlyeF2czk359.png-wh_500x0-wm_3 -wmp_4-s_1982224013.png "title=" () 3@w]7nwjvgdo3c]980~h0.png "alt=" Wkiom1engtbzflruaaalyef2czk359.png-wh_50 "/> Clone a virtual

://s3.51cto.com/wyfs02/M01/86/D8/wKioL1fNFfexX3lhAAAoLs_fTc4351.png "title=" 2016-09-05_144848.png "alt=" Wkiol1fnffexx3lhaaaols_ftc4351.png "/>Because the two network cards are disconnected, so no one to provide services, let us once again to connect the eth0, and then ping the host again650) this.width=650; "src=" Http://s1.51cto.com/wyfs02/M01/86/D9/wKiom1fNFkTxYnGgAAAhePHQ8fI855.png "title=" 2016-09-05_145006.png "alt=" Wkiom1fnfktxynggaaahephq8fi855.png "/>650) this.width=650; "src=" Http:/

. Log in as Root2. Modify the configuration file/etc/sysconfig/network-scripts/ifcfg-eth0The contents of the file are as follows:\device=eth0Hwaddr=00:0c:29:a2:8c:b2Onboot=yesType=ethernetnetmask=255.255.255.0ipaddr=192.168.1.11, modified to 192.168.1.12gateway=192.168.1.1RebootThis section more highlights: http://www.bianceng.cn/OS/Linux/ifconfig eth0 New IP then edit/etc/sysconfig/network-scripts/ifcfg-eth0, modify IPifconfig eth0 New IPThen edit/etc/sysconfig/network-scripts/ifcfg-eth0, modif

Pairphyad:0Transceiver:internalAuto-negotiation:onSupports WAKE-ON:UMBGWake-on:dLink Detected:yes2) [[email protected]/]# ethtool-i eth1driver:e1000Version:5.0.43-k1firmware-version:n/abus-info:06:08.13) [[email protected]/]# ethtool-s eth1NIC Statistics:rx_packets:58068300tx_packets:87124083rx_bytes:1589713008tx_bytes:2165825901rx_errors:0tx_errors:0rx_dropped:0tx_dropped:0multicast:0collisions:0rx_length_errors:0rx_over_errors:0rx_crc_errors:0rx_frame_errors:0rx_fifo_errors:0rx_missed_errors:

Q:route Print command mean? A:metric is in decimal. It represents which route windows prioritizes when multiple routes to the same prefix appear. The metric value is about the higher the small priority value. For example, for 172.16.0.0/16 this network, if one of the routes has a metric of 40 and the other is 39, then Windows takes precedence over the metric route 39. If at some point the route is not valid (for example, a network outage), then the route with metric is 40. If the route to metr

Reset NIC Error Do not know when, there is a failure to reset the network card error, you can not obtain the IP address from DHCP. Execution: Ipconfig/release, appearing: Windows IP Configuration An error occurred while releasing the interface local connection: The RPC server is not available. Error in releasing interface loopback Pseudo-Interface 1 o'clock: The system could not find the specified file. The address is not divided, but the dial-u

The following settings are passed under the Host:winpro SP2 GUEST:RH9 environment. First in the setting, the virtual machine's NIC is set to Host-only. (1) Check the properties of your network card connected to the network, select the "Advanced" tab, set it to allow sharing, and set the allowed network interface to VMNET1. (2) again to look at the properties of your VMnet1, look at the TCP/IP protocol settings, you found that has been automatically

Symptom Description: After starting the local connection normal, but not the Internet, open Task Manager on the network prompts "cannot find the active network card." Solution: On the boot, press F8 (some computer is F2) into Safe mode, right click on "My Computer"--> "Properties"--> "Hardware"--> "Device Manager", expand the "network adapter" item, uninstall the NIC, then restart the computer, the boot will automatically load the driver, If you cann

The driver wizard's friends know that the driver wizard is used to repair the computer hardware software, everyone in the internet when there is a computer network card driver display is "yellow exclamation mark", and then the Web page can not open, small series encountered such a situation, this time everyone first thought must be the NIC driver has a problem, How do you solve it? Sometimes it may need to be updated, sometimes to reinstall, small set

Method One, 1, first double-click on the desktop computer icon, and then in the Open interface, click the top of the "Uninstall or change program" option; 2, then in the bounce out of the program and function, select the driver needs to uninstall (here to uninstall Realtek NIC driver as an example), find the name with Realtek Ethernet Controller name of the software, and then click on the right click to select "Uninstall", follow the on-