Linux

Reprint please explain the source: http://blog.csdn.net/cywosp/article/details/21126161Some time ago, when developing a system that uses SSD for caching, a large number of disk caches may occur during high-speed data writing. If too many disk caches

The previous article introduced how to install Nagios Core. This article will share with you how to add a remote Linux server to the monitoring scope. Part 1: Install Nagios Plugins and NRPE on remote Linux Step 1: Download The Nagios Plugins and

Wait (waiting for the sub-process to be interrupted or terminated)Header file # include # include define the pid_t wait (int * status) function. Function Description: wait () temporarily stops the execution of the current process until a signal

1. For Linux system calls, the FILE descriptor uses an integer, and the library function Access FILE uses a FILE pointer to point to the description FILE; 2. database functions do not change with the system platform, that is, both Windows and Linux

Finally, Nosql products are used. We are using mongodb, which is currently popular. Of course it is not just a large stream, but a product that uses geospatial indexes.This is my configuration process: 1, download the version you need, I use a

2013-02-23 Uncomfortable (>_ I am a referenceHereInstalled, Ubuntu-12.10-Desktop-AMD64.iso, protested available. Ubuntu can be installed in both the primary partition and logical partition, which is the result of my partition in Windows. However,

  However, the habit of using port 80 as the default HTTP port has continued since the MS era. What should I do? Some people talk about using NginX as a reverse proxy on the Internet. In fact, I don't think it is necessary to be so exaggerated. I

? Disable Ctrl + Alt + Delete # Vi/etc/inittab Change "ca: ctrlaltdel:/sbin/shutdown-r-t 4 now" to "ca: ctrlaltdel:/bin/true ", run "init q" to make the update take effect. ? Session Timeout limit Edit the/etc/profile file: ReadonlyTMOUT = 90;

Sometimes a WEB Service is deployed under tomcat as an interface. Due to frequent access, access logs under/var/log/tomcat7 are greatly expanded, affecting server performance. Here, my method is to disable access logs. The method is to comment out

This problem occurs because system restricts the number of files opened by the program.Use the ulimit-a command to viewHtml-------------------------------------------------------------After the above settings, log out of shell and log on again, but

Sun_path []; The path name in the sun_path array must end with a space character. The SUN_LEN macro provided by the implementation takes a pointer to the sockaddr_un structure as the parameter and returns the length of the structure, including the

Hostent * gethostbyname (* The non-null pointer returned by this function points to the following hostent structure: *h_name; **h_aliases; h_addrtype; h_length; **h_addr_

1. First install gnome-tweak-tool Command Line execution: [root@localhost Downloads]# yum install gnome-tweak-tool2. After the installation is successful, enable the Tweak Tool and enable "Desktop" on the left-side menu bar to open Icons on Desktop.

Preface Two problems recently encountered: 1. ubuntu disappears after windows is reinstalled. 2. I also installed centos. I want to set centos as the default boot system. So I checked the information and recorded it. This article is

1. Nic binding: Step 1: Create an ifcfg-bondX # Vi/etc/sysconfig/network-scripts/ifcfg-bond0 DEVICE = bond0 BONDING_OPTS = "mode = 0 miimon = 100" BOOTPROTO = none ONBOOT = yes BROADCAST = 192.168.0.255 IPADDR = 192.168.0.180 NETMASK = 255.255.255.0

Sctp_bindx (sockfd, sockaddr * addrs, addrcnt, -- success, --- Error Sockfd is the set of interface descriptions returned by the socket function. Addrs is a pointer to a compact address list. Each set of interface address structure follows the

Zookeeper has forgotten the root password when using the inux system. What if this happens? Is the system reinstalled? Of course not! Change the root password in single-user mode. How to enter. 1. Restart linux Press enter within 3 seconds. The

In linux, there are 7 startup levels:#0-halt (Do NOT set initdefault to this)#1-Single user mode#2-Multiuser, without NFS (The same as 3, if you do not have networking)#3-Full multiuser mode#4-unused#5-X11#6-reboot (Do NOT set initdefault to

Ubuntu 14.04 Beta 1 is released. This version includes: Kubuntu 14.04 Beta 1, Ubuntu GNOME 14.04 Beta 1, Xubuntu 14.04 beta 1, Lubuntu 14.04 beta 1, Edubuntu 14.04 beta 1, ubuntu Kylin 14.04 beta 1, Ubuntu Cloud 14.04 beta 1, and Ubuntu Studio 14.04

Preface Most function sets require a pointer to the address structure of the set interface as a parameter. Each protocol family defines its own interface address structure. The names of these structures start with sockaddr _ and end with a unique