What Is Loopback Interface

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Deep analysis of the namespace technology behind Docker

I believe you have seen in many places "Docker based on Mamespace, Cgroups, chroot and other technologies to build containers," but have you ever wondered why the construction of containers requires these technologies?   Why not a simple system call? The reason is that the Linux kernel does not have the concept of "Linux container", the container is a user state concept. Docker software engineer Michael Crosby will write some blog posts and dive into Docke ...

FortiOS 5.2 Expert Recipe: BGP over a dynamic IPsec VPN

This example shows how to create a dynamic IPsec VPN tunnel and allowing BGP peering through it.

Ubuntu System configuration Your Hosts file

The Hosts file is just a list of IP addresses and corresponding server names. The server typically checks this file before querying DNS. If a name with a corresponding IP address is found, DNS is not queried at all. Unfortunately, if the IP address of the host changes, you must also update the file. This is not a big problem for a single machine, but it's tough to update the entire company. For ease of administration, it is usually in the file to place only the loopback interface and the local machine name records, and then use the centralized HTTP://WWW.A ...

What is the path and host name after the Linux user logs in?

When we use putty, SECURECRT, or other terminals to log on to Linux, how do we know the path and host name after landing? Examples are as follows: [Root@localhost ~]# pwd/root [root@localhost ~]# hosthttp://www.aliyun.com/zixun/aggregation/11696.html] > Name Localhost.loca ...

FortiOS 5.2 Expert Recipe: Hub-and-spoke VPN using quick mode selectors

This article describes how to set up a large number of spoke VPNs by using quick mode selector source definitions on the spoke FortiGates and the dialup VPN configurations on the hub FortiGates.

Linux network card Configuration ifconfig call syntax detailed

&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; The Ifconfig command makes the Linux core aware of some network interfaces such as software loopback and Nic so that Linux can use them. In addition to the usage described above, the ifconfig command is used to monitor and change the state of the network interface, and can also carry many command-line arguments. Here is a IFCO ...

hadoop2.6 Distributed Environment

1. The foreword builds a distributed Hadoop environment in 3 system centos6.5 Linux virtual machines, the Hadoop version is 2.6, and the node IP is 192.168.17.133 192.168.17.134 192.168.17.135 2 respectively. Configure the Hosts file to configure Hosts files on 3 nodes, as follows: 192.168.17.133 master 192.168.17.134 slave1 ...

The Hadoop cluster is built in detail

1, Cluster strategy analysis: I have only 3 computers, two ASUS notebook i7, i3 processor, a desktop PENTIUM4 processor. To better test zookeeper capabilities, we need 6 Ubuntu (Ubuntu 14.04.3 LTS) hosts in total. The following is my host distribution policy: i7: Open 4 Ubuntu virtual machines are virtual machine name memory hard disk network connection Master 1G 20G bridge master2 1G 20G ...

Ubuntu ADSL (PPPOE) dialing method

Ubuntu Linux is supported by an ADSL Dial-Up Networking (pppoehttp://www.aliyun.com/zixun/aggregation/3280.html > Modem), but it is not as convenient as Windows allocated. In fact, Ubuntu under the ADSL Internet is not very difficult, currently in China ADSL home users mostly, here is an introduction to Ubuntu under the ADSL (PPPOE) Dial-up method. Configure ADSL U ...

Four steps to improve the security of IP hosting network

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall first, guarantee the security and stability of the route.   The main means is to use reliable routing authentication mechanism, through reasonable routing information filtering mechanism to avoid the release of unnecessary routes.   Second, to ensure the security of network equipment. The main measures include strengthening the router, enhancing the users of the equipment and ...

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