Common methods of python string parsing
This is some of the common methods I summarized in my study of python about strings.
In this paper, the built-in help document of Python version 3.5 is quoted, roughly translated, and several small experiments are added.
isalnum
Return True when all characters in the S. isalnum () - > bool # string are letters or numbers, or False if not.
R ...
Posted by timj on Thu, 31 Jan 2019 10:57:16 -0800
lvs load balancing cluster (DR mode)
DR mode cluster. In fact, it should be the IP of the Internet. Here we simulate the phenomenon. Packet back directly from the web to the client.
Problems that may arise
1. Cluster addresses (web backpack IP is different from client requests) require vip to be established.
2. Router ARP request (need to turn off web1, web2 par ...
Posted by magic2goodil on Mon, 28 Jan 2019 20:15:14 -0800
Centos7 Builds Samba Server
1. Preparations
Close the firewall
Close selinux
systemctl stop firewalld.service
setenforce 0 && getenforce && \cp /etc/selinux/config{,.ori} && grep -q "SELINUX=disabled" /etc/selinux/config || sed -i 's%SELINUX=enforcing%SELINUX=disabled%g' /etc/selinux/config
2.Yum installs Samba packages ...
Posted by stockdalep on Sun, 27 Jan 2019 00:03:16 -0800
Centos 6.9 Load Balancing Scheme Complete Configuration (lvs+keepalived+pxc+nfs+business system)
Preliminary preparation:
NFS server: computer name nfsserver, IP address 192.168.1.103, used to store business system data.
Noe1: Computer name PXC01, IP address 192.168.1.105, installation of pxc system and business system.
Noe2: Computer name PXC02, IP address 192.168.1.106, installation of pxc system and business system.
Noe3: Computer name ...
Posted by dirkadirka on Sat, 26 Jan 2019 15:45:15 -0800
Linux Network Related Knowledge
Mission 25 October
10.11 Linux Network Related
10.12 firewalld and netfilter
10.13 Netfilter 5 Table 5 Chain Introduction
10.14 iptables grammar
Linux network related commands
View network card information: ifconfig
Installation: Yum install-y net-tools
[root@centos7 ~]# ifconfig
ens33: flags=4163<UP,BROADCAST,RUNNING,MUL ...
Posted by jenniferG on Sat, 19 Jan 2019 09:18:13 -0800
Install Mysql Galera Cluster - Install MySQL Galera Cluster Offline offline
Install Mysql Galera Cluster - Install MySQL Galera Cluster Offline offline
Install Mysql Galera Cluster - Install MySQL Galera Cluster Offline offline
0. preparation
1. Prepare the server
1.1. Disable mysqld SELinux
1.1.1. disable SELinux for mysql
1.1.2. Disable SELinux directly
1.2. Firewall settings
1.2.1 ...
Posted by fr@nkie on Wed, 09 Jan 2019 14:12:10 -0800