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Redhat 7.5 update yum yuan redhat 7.5 update centos yum source Installation steps (there must be a net) 1. * * view the system's own yum source and delete it** 2. * * go to the network source to download rpm package** 3. Install the downloaded yum source (find the file location and open in Terminal) 4. Create a new. repo fi ...

When you see this title, you must be thinking about the bug s caused by memory overlap. I admit that you are right, but not all of them. If you are interested in this, you can continue to look down, and you will surely get something. First of all, I will briefly introduce the background. Recently, there is a strange problem in the company's pr ...

Reference blog: Docker CE image source Reference blog: docker start exception driver not supported     1. description Before you deploy docker service, you install the latest version of docker and use docker swarm to deploy big data components. However, in a recent deployment, docker 18.06.1 was found. When using docker swarm to deploy big data ...

Environmental installation Foreplay Basic knowledge needed: Network configuration: Reference resources Share path: Reference resources Required software & Image VirtualBox: the best free virtual machine software The download address is as follows (install the software suitable for your own operating system): https://www.virtualbox.org/w ...

One preparation 1.1 complete architecture: Kickstart+DHCP+NFS+TFTP+PXE 1.2 component application Kickstart server IP: 172.24.8.12 DHCP: provide client IP, gateway, image path, etc; TFTP: sharing pxelinux.0, initrd.img, vmlinux, isolinux.cfg, boot.msg, vesemanu.c32, splash.png files NFS: share ks.cfg and all CD files Note: this ks.cfg file and a ...

Docker Network Settings Docker creates a bridged network card [docker 0]. docker has two mappings, one is random mapping and the other is specified mapping Production scenarios generally do not use random mapping The advantage of random mapping is that ports are allocated by docker and do not conflict Install nginx specified port docker pull ...

The process of making nginx image is divided into three steps1. Make dockerfile file2. Make nginx installation script of nginx.sh3. Make ngx-depolyment.yaml file Here are the details #mkdir /root/dockerfile #cd /root/dockerfile #touch Dockerfile #mkdir nginx //Making a dockerfile file root@<cc_172.16.0.2|~/dockerfile/nginx>:#cat Docker ...

I. environmental preparation: Operating system: CentOS Linux release 7.5.1804 (Core) MySQL version: mysql-5.7.24-linux-glibc2.12-x86_.tar.gzMain warehouse: 172.16.8.247Slave Library: 172.16.8.249Host name:172.16.8.247 qas-zabbix-node01172.16.8.249 qas-zabbix-node02172.16.8.248 vip 2. mysql5.7 installation and master-slave replication configur ...

CentOS7 modifying the network card name eth0 The centos7 virtual machine I installed in VMWare workstation has two network cards. The default network card names are eno16777736 and eno33554984 [root@controller ~]# ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1     link/loopback 00:00:00:00:00:00 brd 00: ...

Last blog shared mapreduce's programming ideas. In this section, the blogger will take his friends to understand the principle of wordcount program and the details of code implementation / operation. Through this section, we can have a general understanding of map reduce program. In fact, map and reduce programs in hadoop are only two of them. ...