When we use FreeBSD as a gateway or firewall, we require two network cards to be installed in the system, spanning two networks, one card for the external network, and the other for the internal network. Well, as you know, it's time to get the system to support these new devices, and for the network adapters, FreeBSD is supported by a custom kernel. Of course, first let the kernel understand the hardware resources used by the device, for the NIC using
In order to improve the high availability of the system, we can bind two or more network cards into a virtual network card, using the same IP address, to ensure that a link is broken, another link can be activated at any time, improve the stability of the system.
Dual NIC enabled in virtual machine
Finish
Dual network card when working as a virtual network card (BOND0), the virtual NIC also needs to
follow the oraclesupport online steps to further refine the process and the environment is rhel6.2-64 oracle11.2.0.31, First install the IB network card and driver, and use the command to view the installed network card:[Email protected] bin]# ifconfig-aIb0 Link Encap:infiniband hwaddra0:00:01:00:fe:80:00:00:00:00:00:00:00:00:00:00:00:00:00:00inet addr:192.168.12.65 bcast:192.168.12.255 mask:255.255.255.0Inet6 ADDR:FE80::F652:1403:86:3AE1/64 Scope:linkUp broadcast RUNNING multicast mtu:2044 met
Tags: vim div def WAP nic name Grub Linux default etcThe default NIC names for the newly installed Ubuntu16.04 and Centos7 are ens33. Want to change to eth0.First, CentOS:
Modify/etc/sysconfig/grub file (backup before modification)Add 2 parameters (Net.ifnames=0 biosdevname=0) for the grub_cmdline_linux variable, and the modification is done as follows:grub_cmdline_linux= "Crashkernel=auto rd.lvm.l
Quick approach:Cat/etc/sysconfig/network-scripts/ifcfg-eth0Sed-i '/uuid/d '/etc/sysconfig/network-scripts/ifcfg-eth0Sed-i '/hwaddr/d '/etc/sysconfig/network-scripts/ifcfg-eth0>/etc/udev/rules.d/70-persistent-net.rulesReboot===========================================================VMware cloning Centos6.4 virtual machine NIC does not start problemIn the old boy's teaching process, found that some students encountered the following problems can not be
Tags: add workload name kernel eth1 inet6 RAC problem driverDirectory
VMware replicated intact Linux directory after NIC operation
Modify/etc/udev/rules.d/70-persistent-net.rules
Modifying the network card configuration file
Restart view
VMware replicated intact Linux directory after NIC operation
In order to reduce the workload, it is now necessary to rep
will pass through all the bundled network card output, only one of the network card is selected when receiving data. If the NIC that is being used to receive data fails, it is taken over by other network cards, and the network card and the NIC driver are required to get speed information through the Ethtool command.Balance-alb or 6: Adapter input/Output load Balancing mode, on the basis of "mode 5", while
This method is used to solve the problem where the new Nic is changed to eth1 and the source Nic name is eth0, which cannot be used by the new Nic. It can also be used to rename a nic. After the nic mac address is changed, find the NIC
Article Title: kernel learning-Linux NIC Driver Analysis. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
Learning should first simplify the problem and complicate the problem. Starting from the very beginning, we began to deal with complicated problems, which would inevitably make people feel stunned and stretched
Before Windows Server 2012 we were on the server if we were to implement a dual-NIC binding, we would need the appropriate software for the server manufacturer, but now the advent of the powerful Windows Server 2012 saves us all the hassle, Because the operating system itself has a dual-NIC binding function, how to achieve this function, the following we use the experiment to explain to you:The following tw
The Linux Nic is changed from eth0 to eth1. how can I fix the problem of installing linux using wmware? after the installation is successful, the NIC is eth0 without eth1. However, after a period of time, you do not know why eth0 cannot be used, but the system automatically generates the eth1 Nic. you can use the ifconfig command to view it... the Linux
An Ethernet NIC consists of two layers of the OSI (open-party system interconnection) model. Physical Layer and data link layer. The physical layer defines the electrical and optical signals, line statuses, clock baselines, data encoding, and circuits required for data transmission and receiving, and provides standard interfaces to data link layer devices. The data link layer provides addressing mechanisms, data frame construction, data error check, t
This is the 6th chapter in the OpenStack implementation experience sharing series.
In the implementation of the project, often there is the need to add delete NIC. For example, a running database instance, initially only a network card, database services and backup shared this NIC, and later to improve performance and compliance requirements need to add a network card dedicated to backup. For a long time,
Windows Server 2012 supports up to 32 network cards in a "dual live" mode, which increases throughput by 32 times times.Group mode:switch-independent (Switch independent):This is the default when configured, this mode does not require the switch to participate in the combination configuration, because the switch in standalone mode does not know that the NIC is a part of the host,the NIC in the teaming group
This problem is often encountered. The old network card is broken and a new network card is changed. When you set the previous ip address, the pop-up always conflicts with the existing ip address. Although it does not affect usage, it affects mood. I found a solution post on the Internet and used 2nd methods to solve the problem. So make a note to facilitate future callsThe following is a post:The old Nic of the machine conflicted. the problem that th
Editor's note: In the network system, although the network card is small, it is not enough if it is missing. These two articles talk about The Troubles caused by network cards. I would also like to remind you that if there is a problem with the network, you should not only consider the switch or something. Maybe your bad network card is secretly enjoying it.Attackers cannot access the Internet.
In the usual network management work, many network faults occur, and of course many network card fault
In Windows 7, how to adjust the NIC priority click Start> set> control panel, double-click Network and sharing center, and then click manage Nic settings on the left ", press Alt in the "Network Connection" folder to display the menu. Select "advanced"> "Advanced Settings", and select the corresponding network adapter under "connection in the order accessed by network services, click the up or down button o
After CentOS6.3 is installed as a server, the NIC cannot be loaded or cannot be connected to the NIC at startup. 1. after CentOS6.3 logs on to CentOS6.3 using text, the ifconfig command finds that only one local loopback Nic can be found, etho cannot be found, so www.2cto is used. comifupeth0.0...
After CentOS6.3 is installed as a server, the
[Group chart] dual Nic binding, real m speed! Step by step teach you how to bind and use !!
Preparations:Material: m Nic two (any brand), Nic express performanise4.0 (can be downloaded in http://www.ah8888.com), one switch with trunk (smart switch generally with this function)System Support: Windows9X, me, 20
Change the NIC name after cloning CentOS from vmware
I. Causes of obsessive-compulsive disorder
2. Configure the eth1 Nic properly
3. Change the NIC name eth1 to eth0
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I. Causes of obsessive-compulsive disorder
When cloning a VM using VMware workstation, the NIC name is always cha
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