The mysql configuration file is my. cnf, which is located according to the settings during installation.
When the mysqld service is started, the configuration file is read in a certain order by default.
[root@zhu2 ~]# /opt/mysql/libexec/mysqld
DNS domain name system
Features: 1) recursive query and iterative Query
2) Distributed Database
3) Resolve the domain name to an IP address
4) three types of DNS are available: primary DNS server, secondary DNS server, and cache DNS server.
5) 13
For more information about lvs, please refer to the blog "LVS cluster system details" http://wangziyin.blog.51cto.com/blog/6948950/1297354
Or refer to lvs Chinese site: http://www.linuxvirtualserver.org/zh/lvs4.html
System Environment: rhel6 x86_64
I haven't updated my blog for a long time. I recorded that I installed nagios3.2.0 in the production environment,
1. Install nagios
1.1 Basic Support suite
1) gcc glibc-common gd-devel xinetd openssl-devel
# Yum install-y gcc glibc-common gd-devel
LUN and Volume are two different and identical concepts:Different:1) Voume is generally used for storage. Generally, the concept of Volume is used for initial "Bare" disk operations by storage management software;2) When the disk RAID and capacity
The environment is centos5.6 windows server 2008
File Sharing between linux and windows
1. Install samba
yum install -y samba samba-client2. Change the configuration file
Vi/etc/samba/smb. conf [share] # shared name comment = Public Stuff # Generic
The nginx configuration file consists of the main section, events section, http section, sever section,
Location section and upstream section. Learn nginx modules based on this classification.
Main module: it mainly controls the user/user group to
Lab environment:
OS: Redhat 5.3 64bit
Mysql: mysql 5.5.29
The last time I wrote a blog about the installation configuration of Tcmallo-optimized Mysql memory management, this time I wrote down the installation configuration of Tcmalloc-optimized
What is nfs?
NFS is the abbreviation of NetworkFileSystem, which was first developed by Sun. Its biggest function is to allow different machines, different operating systems, and individual files to be shared through the network ). Therefore, you
1. Software Installation: place the installation CD NBUforWindowsinstalltion into the optical drive. The CD runs automatically and installs it in Wizard order. Enter the license serial number in the text box that requires the license. After
Continued: Sendmail and Dovecot enable Yimei Services 1)
When the email servers in both regions can forward emails in their own domains, you need to make other modifications to enable email sending for users in different regions.
Edit the sendmail
1. Download Xenserver
You can download xerserversoftware from http://xenserver.org/and the latest version is 6.2.
2. Install Xenserver
Download the package and install it as follows.
1. Put the downloaded Xenserver iso image and start the machine.
Two days ago, because of too many spam comments, Akismet was opened. When Akismet was enabled, it was found that the effect was good, and I didn't take a look At Akismet settings too carefully, click here today to check that the connection status of
Because there is a Hyper-V project recently, I want to test it on my computer. When windows server 2012 is installed in VMware workstation 10 and Hyper-V function is installed, an alarm is reported:
650) this. width = 650; "src ="
5. Command completion
Internal commands are built-in with shell;
An external command is in a path with the same executable name as the command.
Program;
6. hash table, which allows you to quickly search for historical cache content;
-R:
1. grep: Global RE Printing
Regular Expression
Text filtering tool, which can perform row-by-row search based on the specified pattern)
The content of the file and the matched lines are displayed;
Mode: it is a matching condition consisting of
Every linux user will encounter this dilemma when installing linux: How to accurately evaluate and allocate the capacity of each hard disk partition when partitioning the system, because the system administrator should not only consider the capacity
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