CentOS-related technical articles

Install nginx su yuening in CentOS. Published in 2015-01-0610: 13: 491nginx installation Step 1.1 install the development component yuminstallpcre-devel-y dependent on the perl extension's regular expression yuminstallopenssl-devel-yyuminstallgd-devel-ygd library is the image filter processing module yuminstallgcc-yC, C ++ editing

Install nginx under CentOS su yuening published on 10:13:49 1 nginx installation Step 1.1 install the development component yum install pcre-devel-y dependent perl extension Regular Expression yum installopenssl-devel-y yum install gd-devel-y gd library is the image filter processing module yum install gcc-yC, C ++

Install nginx in CentOS

Su yuening published on 10:13:49

1 nginx installation Step 1.1 install the development component yum install pcre-devel-y dependent on the perl extension's regular expression yum installopenssl-devel-y yum install gd-devel-y gd library is image filter processing module yum install gcc-yC, C ++ compiler groupadd-r-g 110 nginx Add a nginx group as the system group us... Enter

PHP compilation GMP Extension

IT Chen Yi published on 06:31:39

CentOSPHP

GMP is The gnu mp Bignum Library and is an open-source mathematical computing Library. It can be used for mathematical operations with any precision, including signed integers, rational numbers, and floating point numbers. It has no precision limit, but only depends on the hardware of the machine. Environment: PHP 5.3.27 [code snippet] installed Enter

VPS OpenVPN

IT Chen Yi published on 09:20:21

CentOSOpenVPN

VPN is a virtual private channel that provides secure data transmission between enterprises or individuals and companies. OpenVPN is undoubtedly a pioneer in open-source VPN in Linux, provides good performance and friendly user GUI. (Does it look amazing ....) 1. Make sure you are a Root user or a user with the permission to do things (the first thing is Yum) [code snippet] 2. download and install the lzo Library (For details, refer: centOS6.5 compile and install OpenVPN... Enter

CentOS6 system openssl Certificate generation and self-signed certificate

Bear posted on 07:40:01

CentosLinux

The process of generating certificates and self-signed certificates through openssl in CentOS6 is recorded. This article is based on CentOS 6 64bit. [Code snippet] 1. Generate the private key (key file) of the server [code snippet]. A message is displayed, indicating the password (PEM pass phrase, required ), this password is used to encrypt key Files (the des3 parameter refers to the encryption algorithm ). In the future, whenever you need to read this file (through commands or APIs provided by openssl), you need to enter a password (PEM pass phrase... Enter

LC_CTYPE: cannot change locale (UTF-8)

IT Chen Yi published on 14:35:22

CentOS

Non-harmonious information:-bash: warning: setlocale: LC_CTYPE: cannot change locale (UTF-8): No such file or directory like this OK: [code snippet] reprinted copyright: IT Chen Yi LC_CTYPE: cannot change locale... Enter

Deployment of Shadowsocks server and client

KeenWon was published on 07:30:02

I haven't written a blog for a long time. Recently I 've been tossing around some things and I am not very good at summing up myself. Many technologies have not yet reached the point where I can be a teacher, the writing quality is not too high, so it is not ugly. Yesterday, just because the goagent on the company's machine could not be used, I planned to deploy a Shadowsocks on my own. The server was a m centos server. After a full night of tossing and suffering from various problems, here, I will record it a little and give a reference to my friends who have encountered the same problem. In addition, I follow the official documents on the company's virtual machine... Enter

Install and configure the Mysql database in centos

Fowler Zhang posted on 03:03:29

MySQLcentos

I. mysql introduction speaking of databases, we mostly think of relational databases, such as mysql, oracle, and sqlserver. These database software is very convenient to install on windows, if you want to install a database on Linux, We have to first recommend the mysql database, and the first version of the Mysql database is released on Linux. MySQL is a relational database management system developed by MySQL AB in Sweden and currently belongs to Oracle. M... Enter

Zabbix monitoring Tomcat

IT Chen Yi published on 10:44:57

CentOS

Using Zabbix to monitor Tomcat I used Zabbix's built-in template in the early days. Because the data obtained was not very useful, I used to call the jmap output. Now I run the script every three minutes, the value is obtained every 30 seconds. PSPermGeneration and PSOldGeneration are used as alarm standards. the monitoring figure is as follows: The zabbix-jmap code is as follows. A Dict is generated by executing jmap heap to process heap information. To achieve this, you must rely on c... Enter

Nginx status information record [HttpLogRequestSpeed]

IT Chen Yi published on 07:53:35

Centosng.pdf

This module can find the so-called web page bottleneck, but the actual use is not obvious. Nginx's ability to process static files can be said to be unquestionable, but I still tested this module, the official provision of a module source code and an analysis script, the script is pl. Module: [code snippets] re-/re-compile [code snippets] Nginx configuration [code snippets] log examples (the output domain name has been modified): [code snippets] use... Enter

Zabbix database table structure

IT Chen Yi published on 08:28:29

CentOS

When we see the structure of the Zabbix data table, we can see that the data volume is large and the performance is worrying. However, when we export reports based on the Zabbix database or run reports automatically, you have to understand the structure of zabbix's data table. You have to know where XX is to find XX. Since XX is available, it is no problem to visualize its data, to put it bluntly, open limit 0, Hosts table [code snippets] 1, groups table [code snippets] 3, hosts_gro... Enter

Prompt for Nginx compilation errors in Centos

Magento programmers posted on 04:55:55

When we compile Centos to manually compile Nginx, various compilation failures may occur. Generally, these errors are caused by the lack of components in the system, I will summarize the common error prompts here: 1. Error prompts. /configure: error: the HTTP rewrite module requires the PCRE library Cause: the PCRE component is not installed solution: Install pcre-devel [code snippets] or manually compile and install the PC... Enter

Install and configure LDAP in CentOS 6

Bear posted on 07:18:55

CentosLinux

I. What is LDAP? With the deepening of national informatization construction, various enterprises and institutions have successively developed multiple management information systems for their actual application. However, most application systems follow the traditional development model, that is, each application system has its own independent user authentication module, and use an independent authentication mechanism to authenticate users in their respective databases. This user authentication mode has many drawbacks: 1. The traditional development mode is mostly based on the user authentication information management model of relational databases. The reading speed is slow and the portability is poor; 2, the user must store in every application system... Enter