Secondary IP Addressing secondary IP addressing. Secondary addressing uses multiple networks or subnets on the same data link. By using more than one subnet in the same Layer 2 broadcast domain, you increase the number of available IP addresses. show…

APIPA APIPA(Automatic Private IP Addressing,自动专用IP寻址),是一个DHCP故障转移机制.当DHCP服务器出故障时, APIPA在169.254.0.1到 169.254.255.254的私有空间内分配地址,所有设备使用默认的网络掩码255.255.0.0.客户机调整它们的地址使用它们在使用ARP的局域网中是唯一的.APIPA可以为没有DHCP服务器的单网段网络提供自动配置TCP/IP协议的功能. 默认情况下,运行Windows 98/Me/2000…

linux下ip地址除了primary外,还有两种:1. ip alias(子接口)2. secondary ip(辅助ip) 都可在一块物理网卡上添加,alias由ifconfig添加,ifconfig查看时以子接口如eth0:1的形式显示;secondary ip由ip命令所支持. 1. ip alias(子接口)# ifconfig eth0:1 10.10.56.33/24 up #添加到内存中并立即生效,ifconfig和ip addr sh可查看.也可到/etc/sysconfig/…

IP Addressing(处理) Each host on Internet has unique 32 bit IP address Each address has two parts: netid and hostid netid(网络号) is unique & administered(管理) by Internet registration(注册) netid facilitates(促进) routing and reduces routing table A separate…

提供 ZStack社区 内容简单介绍 Heartbeat是一款开源程序,负责将集群基础设施容量--包括集群成员与消息收发--交付至客户server. Hearbeat在高可用性server基础设施其中扮演着关键性角色. 我们通常须要将Heartbeat与Pacemaker等集群资源管理器(简称CRM)相结合.从而实现完整的高可用性设置. 只是在今天的教程中.我们将演示怎样利用Heartbeat与DigitalOcean Floating IP轻松创建一套双节点高可用性server设置. 假设大家…

更流畅 IP 别名和辅助 IP 地址 2017-01-25 12:05             838人阅读             评论(0)             收藏              举报                                  分类:         云计算(3)                                              作者同类文章X   目录(?)[+] 概述 原理 配置多个 IP 地址时源 IP 的选择 Keep…

The TCP/IP Guide [Page 44, 45, 46] Structure and Organization of The TCP/IP Guide | TCP/IP指南的组织结构 You may have already noticed that the TCP/IP Guide is organized in a way that is very different from most books. I believe this structure will help you…

转:https://blog.csdn.net/xiewen99/article/details/54729112?utm_source=itdadao&utm_medium=referral IP 别名(IP Alias),辅助ip地址(Secondary IP Address) IP alias 是由 ifconfig 程序来创建和维护的,而 secondary IP address 则是由 ip 程序来创建和维护的.ip addr add 创建的 secondary IP address…

今天一个老外在邮件列表上问了一个问题,就是ip addr add和ifconfig的区别,我给他进行了解答,可能因为英语不好吧,解答的很简单,因此我还是要在这里详细说明一下.其实它们之间没有什么区别,只 是表述方式不同罢了.如果你非常理解网络协议的原理以及网络的分层架构那么我想你就不会有这个问题,实际上,每一个网卡设备都有一个mac地址,但是却可 以有多个网络层地址,比如IP地址,然而这个事实无法很好地像用户提供操作接口,所以就引出了ip别名(IP aliases)和辅助ip(secondary…

原文: https://technet.microsoft.com/en-sg/library/cc958821.aspx 1. 主机到网络层 2.网络互连层(互连这个翻译好) ---------------------------------------- TCP/IP Protocol Architecture TCP/IP protocols map to a four-layer conceptual model known as the DARPA model , named afte…

1.网络基本概念 1.1 什么是网络:一些网络设备按照一定的通讯规则(网络协议)进行通讯的系统. 1.2 VPN(虚拟私有网络)加密,相当于专线,从分支机构到总部. 1.3 资源共享的功能和特点: 数据和应用程序 资源 网络存储 备份设备 1.4 常见的网络物理组件: 1.5 用户应用程序对网络的影响: 批处理应用程序: FTP.TFTP.库存更新 无需直接人工交互 带宽很重要,但并非关键性因素 交互式应用程序: 库存查询.数据库更新 人机交互 因为用户需等待响应,所以响应时间很重要,但并非关键…

很明显,以下的文字来自微软MSDN 链接http://msdn.microsoft.com/en-us/library/windows/desktop/ms681382(v=vs.85).aspx MSDN上分成了几个部分,查起来费事,统一放在这里了. 用kernel32.dll里的FormatMessage可以得到支持多语言的返回消息 有人把这些错误代码整理成了类,供参考 http://www.cnblogs.com/Sabre/p/3929264.html Note The informat…

Configuring Network in CentOS 6.3 Virtual Box + Screenshots Posted: May 23, 2013 in Uncategorized Tags: /etc/sysconfig/network-scripts/ifcfg-eth0, centos 6.3, centos 6.5, command line, configure network, internet, ip address, terminal, virtual box, w…

openvpn Section: Maintenance Commands (8)Index NAME openvpn - secure IP tunnel daemon. SYNOPSIS openvpn [ options ... ]  INTRODUCTION OpenVPN is an open source VPN daemon by James Yonan. Because OpenVPN tries to be a universal VPN tool offering a gre…

/************************************************************************* ** winerror.h -- error code definitions for the Win32 API functions ** ** Copyright (c) Microsoft Corp. All rights reserved. ** ***********************************************…

http://www.briandunning.com/error-codes/?source=Windows Windows Error Codes List All Error Codes | Search Errors: FileMaker Error Codes Lasso Error Codes MySQL Error Codes Windows System Errors About this databaseThis is a free public resource. It is…

源代码及NVMe协议版本 SPDK : spdk-17.07.1 DPDK : dpdk-17.08 NVMe Spec: 1.2.1 基本分析方法 01 - 到官网http://www.spdk.io/下载spdk-17.07.1.tar.gz 02 - 到官网http://www.dpdk.org/下载dpdk-17.08.tar.xz 03 - 创建目录nvme/src, 将spdk-17.07.1.tar.gz和dpdk-17.08.tar.xz解压缩到nvme/src中,然后用Open…

SOLUTION VERIFIED September 13 2016 KB1248793 Environment Red Hat Enterprise Linux 7 NetworkManager teamd Issue Would like to configure a VLANs with Teaming in RHEL 7. Need to know how to make VLANs like team0.10 for a team0 device with RHEL and Netw…

SOLUTION VERIFIED September 13 2016 KB2620131 Environment Red Hat Enterprise Linux 7 NetworkManager teamd Issue Would like to configure a basic Team in RHEL 7. Need to know how to make team0 with RHEL. Resolution For steps to use Teaming with VLANs,…

not on top of a bond Environment Red Hat Enterprise Linux 7 NetworkManager Issue Need an 802.1q VLAN in RHEL 7 when using NetworkManager. Resolution Remove any existing connection profiles for the interface which will have the VLAN(s). Assuming this…

SOLUTION VERIFIED October 13 2015 KB39674 KB741413 environment Red Hat Enterprise Linux 4 Red Hat Enterprise Linux 5 Red Hat Enterprise Linux 6 Red Hat Enterprise Linux 7 question Suppose I want a VLAN ID of 192 for the eth0 on a RHEL 5 or 6 system.…

学习 Neutron 系列文章: (1)Neutron 所实现的虚拟化网络 (2)Neutron OpenvSwitch + VLAN 虚拟网络 (3)Neutron OpenvSwitch + GRE/VxLAN 虚拟网络 (4)Neutron OVS OpenFlow 流表 和 L2 Population (5)Neutron DHCP Agent (6)Neutron L3 Agent (7)Neutron LBaas (8)Neutron Security Group (9)Neutro…

本系列会分析OpenStack 的高可用性(HA)概念和解决方案: (1)OpenStack 高可用方案概述 (2)Neutron L3 Agent HA - VRRP (虚拟路由冗余协议) (3)Neutron L3 Agent HA - DVR (分布式虚机路由器) (4)Pacemaker 和 OpenStack Resource Agent (RA) (5)RabbitMQ HA (6)MySQL HA 1. 基础知识 1.1 虚拟路由冗余协议 - VRRP 1.1.1 概念 路由器是整…

html,body { } .CodeMirror { height: auto } .CodeMirror-scroll { } .CodeMirror-lines { padding: 4px 0px } .CodeMirror pre { } .CodeMirror-scrollbar-filler,.CodeMirror-gutter-filler { background-color: white } .CodeMirror-gutters { border-right-width:…

From Wikipedia, the free encyclopedia An overlay network is a computer network that is built on top of another network. Nodes in the overlay network can be thought of as being connected by virtual or logical links, each of which corresponds to a path…

http://wenku.baidu.com/link?url=tWdw-Kgn_Ncr52ooBSL2J0y_ZJy3SvAXGv9Lu5UOKB333frE48hmkQ_5Pj9CJeCtGm7_tRb206BhbDJ1uXidkXTqJOKwwycvNWZW9FX-G7K A (address) resource record / A(地址)资源  记录 AAL, ATM adaptation layer / ATM 适配层 ABR, area border router / 区域边界路由…

RAC: Frequently Asked Questions [ID 220970.1]   修改时间 13-JAN-2011     类型 FAQ     状态 PUBLISHED   Applies to: Oracle Server - Enterprise Edition - Version: 9.2.0.1 to 11.2.0.1 - Release: 9.2 to 11.2 Purpose Frequently Asked Questions for Real Applicatio…

系统环境: ************************************************************ 两台服务器都装了 CentOS-5.2-x86_64 系统 Virtual IP :                    192.168.30.20 Squid1+Real Server 1 :       网卡地址 (eth0):192.168.30.12 Squid2+Real Server 2 :        网卡地址 (eth0):192.168.30…

http://www.gpxz.com/diannao/hulianwang/80526.html 一  VRRP简介< xmlnamespace prefix ="o" ns ="urn:schemas-microsoft-com:office:office" /> 1.1 VRRP(Virtual Router Redundancy Protocol) 在VRRP协议中,有两组重要的概念:VRRP路由器和虚拟路由器,主控路由器和备份路由器.VRRP路…

Questions that are independent of programming language.  These questions are typically more abstract than other categories. Free Language Agnostic Programming Books 97 Things Every Programmer Should Know Algorithms and Data-Structures (PDF) Algorithm…