Docker Series 4: Foundation of Docker Network Virtualization

1. Introduction of Network Virtualization Technology 1. What is a virtualized network A virtualized network is a network virtualized by the linux kernel. In fact, the linux kernel can emulate a variety of network devices Analog network devices: Analog network devices appear in pairs, one in containers and one in switches Analog switches: Cont ...

Posted by xeidor on Sun, 22 Dec 2019 14:34:23 -0800

Notes on the installation of Redis3.0 in CentOS 6.5

CentOS 6.5 install Redis3.0 1. Install C compilation environment First, you need to install the C environment for compiling Redis, and execute the following commands at the command line: [root@itzhouq32 tools] yum install gcc-c++ 2. Upload redis3.0 to Linux 3. Unzip redis. I unzip it to / usr/local [root@itzhouq32 tools]# tar -xvf redis-3.0.0.t ...

Posted by jwwceo on Tue, 19 Nov 2019 10:43:52 -0800

iptables setting h323 dynamic open port

iptables setting h323 dynamic open port 1. Insert h323 module In order to support the h323 protocol, the kernel needs to insert the NF conntrack, NF NAT, and h323 modules. modprobe nf_conntrack_h323 modprobe nf_nat_h323 2. Configure iptables rules h323 uses 1719, 1720 ports. But mainly use port 1720. The prototype of ip ...

Posted by bobby317 on Sat, 16 Nov 2019 09:52:19 -0800

FastDFS picture server stand-alone installation steps (Revision)

As I said before A picture of the network architecture of microservices , through this article, you can understand the stand-alone installation process in FastDFS components. Stand alone architecture The following are the installation steps of FastDFS I. environmental preparation CentOS 7.X libfastcommon Version used: libfastcommon-1.0.41.tar. ...

Posted by kelharis on Wed, 13 Nov 2019 02:00:28 -0800

Basic format of yaml file for k8s and underlying load balancing implementation principle

This article is only a summary of your own, if you need detailed information, please go around. Note: yaml files require strict indentation. By default, two spaces are indented at different levels. 1. Create a Deployment resource object using httpd mirroring [root@master ~]# vim lvjianzhao.yaml #Write yaml file kind: Deployment ...

Posted by rastem on Thu, 07 Nov 2019 04:17:01 -0800

Docker installs and configures Mysql Cluster on a server

1. Download the image of mysql5.6 from the docker hub docker pull mysql:5.6 2. Use mysql 5.6 image to run 4 mysql services, and distinguish by port number Preparatory work # Four directories are created on the local machine to store the data, logs and configuration files of four mysql services. mkdir /data/mysql cd /data/mysql mkdir mysq ...

Posted by flaab on Fri, 01 Nov 2019 01:03:30 -0700

[Centos] Mysql modifies the directory of data files or solves some errors

Reference resources: https://blog.csdn.net/qq_21573899/article/details/78843075 [refer to this document for most of this article] https://www.cnblogs.com/Mchn/p/9984186.html Technological process: 1. Install Mysql normally. The default installation directory is / usr/local/mysql data file directo ...

Posted by jek1134 on Wed, 30 Oct 2019 09:52:51 -0700

Linkerd2 proxy destination learning notes

Author: hula mesh team, keen on kubernetes, devops, apollo, istio, linker, openstack, calico and other technologies. Linker2 introduction Linkerd consists of control plane and data plane: The control plane is a set of services running in the Kubernetes namespace (linker default). These services can complete the aggregation of telemetry data ...

Posted by baitubai on Tue, 29 Oct 2019 02:59:27 -0700

Describe the advanced configuration of firewall in Linux

IP camouflage and port forwarding Firewall supports two types of network address translation IP address masquerade It can share multiple addresses in LAN and access to the Internet with a single public address IP address camouflage only supports IPv4, not IPv6 Address masquerading is enabled in the default external area Forward port Also ...

Posted by mvidberg on Wed, 23 Oct 2019 12:46:54 -0700

Startup, shutdown and view of firewall and selinux under Linux

Under CentOS7.X: 1. firewall View firewall status: [root@localhost sunan]# systemctl status firewalld.service ● firewalld.service - firewalld - dynamic firewall daemon Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled) Active: inactive (dead) Docs: man:firewalld(1) Where Active is inactive ( ...

Posted by kts on Mon, 21 Oct 2019 08:16:16 -0700