PXE+Kickstart unattended installation

PXE one key installation PXE(Preboot eXecute Environment) is mainly used to boot the client host to install the Linux operating system in the unattended installation system. Kickstart is an unattended installation method. Its working principle is to save the parameters that need to be filled in manually by the operation and ma ...

Posted on Thu, 02 Jan 2020 03:27:10 -0500 by asy1mpo

Learn to use vsftpd services in linux

Main points: 1. Overview of vsftpd 2. Four differences of ftp, sftp, vsftp and vsftpd 3. Anonymous users log on to ftp 4. Log on to ftp using local users 5. Set up virtual user accounts using ftp 1. Overview of vsftpd vsftpd is the abbreviation of "very secure FTP daemon", security is one of its biggest features.vsftpd is the name ...

Posted on Wed, 25 Dec 2019 12:37:20 -0500 by theverychap

Linux-Process Observation

16.1.1 Processes and Programs   Program: Usually a binary program, placed on storage media (e.g. hard disks, discs, floppy disks, tapes, etc.), which exists as a form of physical files; Process: When a program is triggered, the permissions and attributes of the executor, the program code and required data of the program are loaded into m ...

Posted on Sat, 21 Dec 2019 18:41:45 -0500 by Atiq

centos7 installation configuration vsftpd

1. installation Check if FTP is installed: RPM - qa|grep vsftpdInstall: yum -y install vsftpdchkconfig vsftpd on Start vsftpd: systemctl start vsftpd.service There are several kinds of vsftpd users: local user, virtual user and anonymous user. Active mode, passive mode: PORT active FTP mode:Command connection: client > 1024 port - > se ...

Posted on Fri, 06 Dec 2019 08:37:01 -0500 by saeeddeep

Regular expression three swordsmen and file processor in shell programming

Preface: Basic regular expression Extended regular expression How to use sed tool How to use awk tools One: regular expression I have learned the basic usage of Shell script before, and I can edit Shell script with conditional judgment, loop and other statements. Next, we will introduce a very important concept - regular expression (RE). Reg ...

Posted on Fri, 06 Dec 2019 01:25:35 -0500 by zc1

vsftp virtual user based

I. components required for online installation of vsftpd [root@k8s-node01 home]# yum -y install vsftpd* [root@k8s-node01 home]#yum -y install pam* [root@k8s-node01 home]# yum -y install db4* [root@k8s-node01 home]# yum -y install db4-utils II. Establishing virtual users [root@k8s-node01 home]#vi /etc/vsftpd/vftpuser.txt Add a virtual user n ...

Posted on Sat, 16 Nov 2019 10:11:23 -0500 by Nirvana

Regular expression and programming The Three Swordsmen (grep, sed, awk) command is detailed

Blog Outline:1. Regular expressions(1) Definition of regular expressions(2) Use of regular expressions1. Basic Regular Expressions(1) grep command tool2. Extending regular expressions2. Text Editing Processor1.grep Command Tool2.sed Command Tool3.awk Command Tool 1. Regular expressions (1) Definition of regular expressions Regular expressio ...

Posted on Sat, 09 Nov 2019 12:39:54 -0500 by Labbat

PowerShell saves clipboard pictures and constructs a MarkDown statement

target Recently learning to write documents with MarkDown, I hate passing pictures.Prepare to build your own wheel with PowerShell, but also search ahead and find a lot of Big Brother's documents. The whole process to do is Copy Clipboard Picture with Mouse Enter program processing logic Processing clipboard pictures, saving cost local file ...

Posted on Thu, 07 Nov 2019 16:45:36 -0500 by titel

Installation and configuration of development environment under linux system

Installation system environment CentOS 6.8 64 bit jdk version 7u80 64 bits Tomcat version Tomcat7 maven version Apache Maven 3.6.0 vsftpd version vsftpd-2.2.2-24.el6.x86_64 Nginx version nginx-1.14.2 mysql version mysql-server-5.1.73-8.el6_8.x86_64 git version git version 2.18.0 Alisource configuration #backups [root@192 yum.r ...

Posted on Sun, 03 Nov 2019 09:18:28 -0500 by T Horton

Build extended ACL practice

The topology of this experiment is as follows: Objective: Complete the establishment of extended ACL on R1 route, and achieve the experimental requirements: Allow PC1 to access Linux web services; Allow PC2 to access the ftp service of Linux; PC1 and PC2 are forbidden to access other Linux services; Allow PC1 to connect PC2 Experimental st ...

Posted on Tue, 15 Oct 2019 12:55:53 -0400 by nike121