Shell programming syntax and Application

brief introduction Shell scripts are similar to batch processing under Windows/Dos, that is, they are pre-loaded into a file with various commands to facilitate one-time execution of a program file, mainly for administrator setup or management purposes.However, it is more powerful than batch processing under Windows and more efficient than pro ...

Posted on Sun, 21 Jun 2020 18:11:48 -0400 by theweirdone

Linux remote desktop tool vnc, how to use Linux remote desktop tool vnc, Linux configuration vnc.

A brief introduction of linux remote desktop tool vnc iis7 remote desktop management software is a green, compact and functional remote desktop tool with simple interface and convenient operation. It can view multiple hosts remotely at the same time, and multiple servers can switch freely, supporting split screen and group control operation. It ...

Posted on Sat, 06 Jun 2020 07:12:10 -0400 by lalloo

NAT address translation

1: Experimental environment1.1: Huawei ensp software1.2: PC, router and switchThe PC in the initialization state and the router in the initialization state are connected as shown in the figure, and the switch is turned on2, Experiment requirements, R2 provides NAT service; server page access3: Experimental process3.1: configure SW1 switch vl ...

Posted on Fri, 29 May 2020 10:34:30 -0400 by hillbilly928

DHCP relay service

1: Experimental environment1.1: Huawei ensp software1.2: PC, router and switchPC in initialization state and router and switch in initialization state2, Experiment requirements, realize the whole network interworking and DHCP relay on R43: Experimental process3.1: equipment configurationIn the ensp, the PC, router and switch are ready and st ...

Posted on Thu, 28 May 2020 11:09:52 -0400 by alemapo

k8s deployment apollo configuration center

Convenient for online k8s to automatically obtain the latest configuration from apollo when deploying pod Architecture diagram flow chart Deploy database 1.1 four mysql deployments MKDIR - P / data / Apollo / MySQL Apollo PRD / data / Apollo / MySQL Apollo test / data / Apollo / MySQL Apollo dev / data / Apollo / MySQL Apollo / MySQL Apoll ...

Posted on Tue, 26 May 2020 10:28:01 -0400 by alwaysinit

nginx lua scripts manipulate pits in file directories or default paths to files

BUG s have recently appeared online, and it is after server migration that a lua script that finds nginx cannot collect log data for nginx After sorting, it was found that because lua could not find the corresponding file, the nginx data could not be written to the file.That is, lua cannot create the create file directory and therefore cannot f ...

Posted on Fri, 22 May 2020 23:54:39 -0400 by davidx714

SLS machine learning best practice: timing anomaly detection

On the SLS platform, machine learning functions can be used to detect related time sequence exceptions. Specific related functions can be used to detect exceptions, to help users improve the efficiency of patrol inspection and analysis. The specific function list is as follows, and the specific address is as follows: https://help.aliyun.com/doc ...

Posted on Fri, 22 May 2020 06:37:28 -0400 by j.bouwers

Three layer link bundle instance

1, Experiment of link bundling to realize redundant function1. Set two ordinary routers, two switches and four PC s on the Huawei simulator enspFirst, open ensp, create two routers and two pc users, and connect them with network cables, as shown in the following figure Configure LSW1 LACPConfigure lacp [SW1]lacp priority 1000 [SW1]int Eth-Tru ...

Posted on Wed, 20 May 2020 11:07:40 -0400 by Japher

Let's talk about this open source project, how to make GitHub popular step by step!

At the beginning of 2010, influenced by foreign saas suppliers such as salesforce and zoho, more and more enterprises began to invest in CRM research and development. In order to find its own brand direction, Wukong team took openerp (odoo) as the benchmark, began to explore on the road of open source, and invested in it for nearly ten years. F ...

Posted on Tue, 19 May 2020 05:37:34 -0400 by JNettles

centos7 implementation of network card binding technology

1.centos7 Implementation of network card binding technology one point one introduce Binding multiple network cards to the same IP address to provide external services can achieve high availability or load balancing. It is not allowed to directly set the same IP address for two network cards. Through binding, a virtual network card provides ext ...

Posted on Tue, 19 May 2020 04:24:03 -0400 by JovanLo