Building of redis 3.2.8 cluster environment
Environmental preparation
centos6.7
redis3.2.8
Installation steps
Step 1: Download the redis 3.2.8 installation package https://redis.io/download
Step 2: Decompress the compressed package to the middle/inner_dev_env/redis-3.2.8
[root@allere /inner_dev_env/redis-3.2.8]# pwd
/inner_dev_env/redis-3.2.8
Step 3: Create a new directory: redi ...
Posted by WesPear on Mon, 01 Jul 2019 11:56:25 -0700
Firewall D Concise Guide on CentOS
Original address: https://linux.cn/article-8098-1-rel.html
FirewallD Yes.
The front-end controller of iptables is used to implement persistent network traffic rules. It provides command line and graphical interfaces, which are available in most Linux distribution repositories. There are two main differences between using Firewall D and d ...
Posted by stonecold on Mon, 17 Jun 2019 15:54:45 -0700
Python File System Function: os Module
Python File System Function: os Module
1. Classification of OS Module Method
(1) Catalogue:
chdir() changes the working directory
chroot() sets the root directory of the current process
listdir() lists all file names in the specified directory
mkdir() Creates the specified directory
makedirs() Create multilevel directories
...
Posted by williamZanelli on Sun, 16 Jun 2019 16:21:57 -0700
Remote access of l2tp/ipsec server in vpn
brief introduction
PPTP and L2TP are our most commonly used vpn. Before we used pptp, we found that the new version of ios system does not support PPTP protocol. Another client can not connect VPN after connecting the hotspot of iphone. In order to facilitate office work, we need to build l2tp/ipsec vpn.
Realization
I. Installation of s ...
Posted by Valdhor on Mon, 03 Jun 2019 20:55:51 -0700
Samba client configuration
First, record how the linux client accesses the shared folder of windows or linux with commands
The first step is smbclient-L//192.168.100.5-U public (smbclient is the command-L is to list which shared files the server has-U followed by the user name)
The second step is to enter the password and see the folder shared by the server. Then you e ...
Posted by martincrumlish on Sat, 01 Jun 2019 15:13:50 -0700
Upgrade mysql 5.5.19 to 5.6.33 (architecture: mysql dual master replication + keepalive)
First: experimental environment
Operating System: CentOS release 6.5 (Final)
mysql dual master replication + keepalive achieves high availability:
master1:10.192.203.201
master2:10.192.203.202
vip 10.192.203.203
Virtual ip is currently on master 1. The program writes vip.
2. Experimental steps
2.1 Upgrade Mas ...
Posted by Sindarin on Thu, 23 May 2019 11:21:34 -0700
iptables use implicit extensions to manage related services
iptables release sshd services for local access
First look at filter rules
[root@server23 ~]# iptables -t filter -L -n
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
Chain OUTPUT (p ...
Posted by pradeep79 on Fri, 17 May 2019 21:36:52 -0700
The Preview Task of Lesson 0416 + Classroom Notes
10.12 firewalld and netfilter
selinux temporarily closed
[root@arslinux-01 ~]# setenforce 0
[root@arslinux-01 ~]# getenforce
Permissive
selinux permanently closed
[root@arslinux-01 ~]# vi /etc/selinux/config
permissive doesn't block, it reminds, it doesn't show, it just records information.
· CentOS 7 used netfilter firewalls before ...
Posted by neoboffins on Sat, 11 May 2019 01:04:12 -0700
Reference of common configuration methods of firewalld firewall in Centos 7 system
Firewall is a new generation of system firewall management tools under Linux. Compared with the old iptables tools, Firewall provides more management functions, such as zone-based access authorization management, dynamic loading rules and so on. But there are many advanced functions that we don't have a chance to use in our dail ...
Posted by rckehoe on Sat, 27 Apr 2019 13:42:36 -0700
Construction of FastDFS Cluster Edition
What is FastDFS
FastDFS is an open source distributed file system written in c language. FastDFS is customized for the Internet. It fully considers the mechanism of redundant backup, load balancing, linear expansion, and pays attention to high availability, high performance and other indicators. Using FastDFS, it is easy to build a high-perform ...
Posted by daneilair on Wed, 17 Apr 2019 13:39:32 -0700