Description: This note completes the clone remote warehouse to the local 1 on CentOS 7 . Configure the Public key
[Root@kangvcar ~]# ssh-keygen-t rsa-c "kangvcar@126.com"
[Root@kangvcar ~]# cat. Ssh/id_rsa.pub
Note: After generating the key pair
Valgrind can check for memory leaks, crossings, etc.
Reference:
Http://www.cnblogs.com/wangkangluo1/archive/2011/07/20/2111248.html
http://blog.csdn.net/sduliulun/article/details/7732906
To use Valgrind for memory checking:
1. Copy the debug version
After the Linux pc/phone started, Dbus-daemo started.
This is if a program is started, there will be a connection mount to the Dbus-daemon, while maintaining the service of the program.
You can use the Dbus-send command to see which service is on
After reading the I2C official agreement document, take s3c2440 and EEPROM to verify it.
Originally want to use s3c2440 SDA and SCL pin Gpio to simulate, but in the absence of an oscilloscope for a week, how can not come out, finally or give up.
(i) The concept of hard disk and its composition
First of all, the concept of the hard disk: RTHK called the HDD, English name: Hard disk Drive, referred to as HDD, hard disk is one of the computer's main storage medium, consisting of one or more
Nux The Process management tool to replace top htop
This article turns from: http://www.cnblogs.com/mchina/archive/2013/03/15/2858041.html
introduction of Htop
This is htop, a interactive process viewer for Linux. It is a text-mode application
Struts2 is not an escalation of struts1, but a lineage of inherited webwork, which absorbs the advantages of struts1 and webwork.
first look at struts ' action official note (struts1.3.8 source code)
/*** an Action is an adapter between the contents
"Reading notes" to understand service routing and load Balancing, micro-services to get up
1 Basic Concepts
Soa
The public business is split up to form a shared service that maximizes the reuse of code and logic and avoids duplication of
Mini-muduo Version Transfer GateVersion 0.00 Building Muduo-1 Mini-muduo Introduction from EpollVersion 0.01 builds the muduo-2 simplest epoll from EpollVersion 0.02 adds the first class from the Epoll build muduo-3, by the way reactorVersion 0.03
With the crontab command, we can execute the specified system instructions or shell script scripts at a fixed interval of time. The unit of time interval can be any combination of minutes, hours, days, months, weeks, and more. This command is ideal
The Web-sso sample is made up of three standard web applications, compressed into three zip files and downloaded from the http://gceclub.sun.com.cn/wangyu/web-sso/. where Ssoauth (Http://gceclub.sun.com.cn/wangyu/web-sso/SSOAuth.zip) is the identity
This is the last section of UNP summary Chapter30 mainly for code practice please refer to UNP
One, Thread
This UNP thread is basically consistent with the threads in Apue, but Apue is more nuanced, so here's a list of the main things (thread data
Use DYNSRC in web development to be addressed by McAfee report Trojan virus
By Dynsrc, McAfee and other antivirus software have been blacklisted by such malicious use.
In the Web page in any case contains dynsrc these 6 letters, will be
Several ways JDBC connects to an Access database
A few days ago the teacher to make several JSP connection database example, and the connection database is an Access database, for the database itself is not too understanding, and later learned to
Recently when debugging equipment, encountered a strange problem: the WiFi module to work in the station mode and AP mode switch between, several consecutive times, the mobile phone's wireless WiFi list can no longer find the device's AP node named .
Data Architecture Design in micro-service development
Preface
Micro-service is currently a very popular technical framework, through the service of miniaturization, atomization and distributed architecture flexibility and high availability, can
Environment: Virtual machine: VMware Workstation operating system: CentOS 5.5
First, KEEPALIVED+LVS-DR mode configuration high available load balancing
The topology is as follows:
Second, server IP configuration information
1. IP_LB Host (Master):
Pvdisplay command to display the properties of a physical volume
[Root@test ~]# Pvdisplay
---Physical volume---
PV name /dev/sda2
VG name vg_test
PV Size 9.51 gib/not usable 3.00 MiB
Allocatable
Ideas:1, formatted to read the two number of files, saved in two strings.2,/proc/uptime in seconds, discard decimal. Converts the integer part to long.3, from long to date.
#include
int main ()
{
FILE *fp = NULL;
fp = fopen ("uptime.c",
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