How to set up the experiment environment of Varnish reverse agent

Construction of Varnish experimental environment 1. Download the 6.5 image and configure the network yum source on the host yum install httpd -y systemctl start httpd systemctl enable httpd mkdir /var/www/html/rhel6.5/ mount /iso/rhel-server-6.5-x86_64-dvd.iso /var/www/html/rhel6.5/ 2. Create a master disk: (1) open Virtual ...

Posted by psionicwrath on Tue, 26 Nov 2019 10:39:56 -0800

Separation of reading and writing of mysql database by maxscale

Mysql read write separation The query request and write request of client accessing data are processed by different database servers respectively. Why data read-write separation Reduce the concurrent access pressure of single server and improve the utilization of machine hardware The server that pro ...

Posted by alireza on Sat, 26 Oct 2019 12:12:36 -0700

Linux system oraclelinux redhat centos ubuntu debian mirror Download

1,Oracle Linux(Download address) (1)OracleLinux-Release6-Update0-x86_64-dvd.iso(2)OracleLinux-Release6-Update1-x86_64-dvd.iso(3)OracleLinux-Release6-Update2-x86_64-dvd.iso(4)OracleLinux-Release6-Update3-x86_64-dvd.iso(5)OracleLinux-Release6-Update4-x86_64-dvd.iso(6)OracleLinux-Release6-Update5-x86_64-dvd.iso(7)OracleLinux-Release6-Update6-x86 ...

Posted by Stickybomb on Sun, 06 Oct 2019 07:52:23 -0700

Linux Service Control and Running Level

How to control the running state of the service? How to switch different levels of operation? service control ntsysv Imitating graphical interactive interface, centralized configuration of various service startup status level 35: Manage services at the specified runlevel, not just at the current runlevel. [root@localhost ~]# ntsysv --level ...

Posted by miha on Sat, 05 Oct 2019 10:53:10 -0700

LVM Logical Volume Management

From Wechat Public Number Let the Code Fly Rhel Topic 2: LVM Logical Volume Management - Disk Management (2) 2017-05-07 Let the Code Fly 1. Add 20G hard disk and create three new main partitions, size 5G, 5G and 10G respectively. If you are not familiar with partitioning, you can take a look at basic storage management. Change the syst ...

Posted by public-image on Tue, 02 Jul 2019 15:53:27 -0700

Introduction to the Use of System CTL Tools

Systemctl is a system D tool, which is mainly responsible for controlling the system D system and service manager. Systemd is a collection of system management daemons, tools, and libraries that replace the initial process of System V. Systemd's function is to centrally manage and configure UNIX-like systems. In the Linux ecosystem, ...

Posted by Yucky on Fri, 24 May 2019 15:33:34 -0700

How to use yum to install software

background yum (all called Yellow dog Updater, Modified) is a Shell front-end package manager in Fedora, Red Hat and SUSE. Based on RPM package management, RPM packages can be downloaded and installed automatically from designated servers, dependency relationships can be handled automatically, and all dependent software packages can be instal ...

Posted by 2tonejoe on Mon, 20 May 2019 12:48:47 -0700

PXE Pre-Start Execution Environment

PXE What is 1 pxe? PXE(preboot execute environment, pre-boot execution environment) is Intel company The latest technology developed, working in Client/Server network mode, support Workstation The image is downloaded from the remote server through the network and the operating system is booted through the network. During the ...

Posted by TheBrandon on Wed, 15 May 2019 01:59:44 -0700

Docke implements cross-host communication using Open vSwitch

- xxong personal verification At present, flannel, weave, Pipework, Open vSwitch and so on are the main solutions in the market. Open vSwitch is relatively simple, mature and powerful, so it is very suitable as a tool to s ...

Posted by wei on Fri, 29 Mar 2019 19:39:28 -0700

Linux page allocation failure problem handling - zone_reclaim_mode

Label PostgreSQL, Linux, page allocation failure, memory background Linux kernel allocation fails. After using a certain amount of memory, HANG. There may be similar errors in dmesg, system HANG live, can not connect, need to restart to solve. page allocation failure Oct 24 11:27:42 kernel: : [21289.479063] python2.6: page allocati ...

Posted by kaen on Thu, 07 Feb 2019 20:30:17 -0800