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