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DNS domain name resolution service DNS domain name resolution service DNS Service Realization Principle of DNS Actual Project 1: Setting up a Domain Name Resolution Server DNS Positive and Negative Resolution in Enterprise Actual Project 2: Build two domain name resolution servers inside the enterprise to synchronize the main and auxiliary ...

task list 1. Download hg19 reference genome in UCSC; 2. Download gene annotation files from gencode database, and use IGV to view the structure of interested genes, such as TP53, KRAS, EGFR and so on. 3. Visual structure of IGV of several genes in screenshots 4. Download ENSEMBL, NCBI gtf, also import IGV to see, screenshot gene structure ...

When I was again toyed with various outbound and inbound rules, and after the search engine helped me out of the mud, I decided to write down this experience. 1. Deployment of FTP Server 1.1 Installation of vsftpd _The author uses Aliyun's ECS server (this is not an advertisement, but a reminder: P), the operating system is CentOS7. F ...

1 OverviewIn order to share resources, ftp servers need to be built. This paper will automatically install the ftp server through scripts and configure it. At the same time, it will create the ftp login account and create two folders as public folders to provide common access paths for all users.2 Conceptual Interpretation and Notices2.1 chroot ...

The Method of Setting Map Scaling Proportion in ArcGis mMapView.setViewpointScaleAsync(scale); demand Click on the zoom button (+"-) on the map and let the map zoom according to the map layer. For example, a map contains the following layers. Each layer has a zoom scale. When we click on the zoom button (+"-), we need to set t ...

zabbix introduction Zabbix is an enterprise-level open source solution based on WEB interface to provide distributed system monitoring and network monitoring functions. zabbix consists of zabbix server and optional component zabbix agent. zabbix server can provide remote server / network status monitoring through SNMP, zab ...

Preface This article mainly introduces the UI Application, UI Windows and the start-up process of the program. Through this article, I believe that you will understand the iOS application start-up process and app application level knowledge better. UIApplication Brief introduction One of the main tasks of UI Application is to process use ...

Preface FTP(File transfer Protocl), a file transfer protocol, is a standard protocol for file transfer over a network. It uses client/server mode and belongs to the application layer of the network transfer protocol.FTP services run on TCP/21 and 20 ports, typically 21 ports are connection ports and 20 ports are data ports. FTP has two working ...

1. Check basic date format var reg1 = /^\d{4}(\-|\/|\.)\d{1,2}\1\d{1,2}$/; var reg2 = /^(^(\d{4}|\d{2})(\-|\/|\.)\d{1,2}\3\d{1,2}$)|(^\d{4}year\d{1,2}month\d{1,2}day $)$/;   2. Verify password strength The strength of a password must be a combination of upper and lower case letters and numbers. No special characters can be used, and the ...

GAWK: Report Generator, Formatted Text Output 　　　　awk [options] 'program' var=value file... 　　　　awk [options] -f programfile var=value file... 　　　　awk [options] 'BEGIN{ action;... } pattern{ action;... } END{ action;... }' file ... The awk program component: BEGIN statement block, general statement block that can use pattern ...