Ubuntu 12.10 provides Apache Tomcat 7 as the default, supported version of Tomcat. Existing installations of tomcat6 will continue to function; its recommended that users upgrade to the tomcat7 package as soon as possible.
Apache Solr has been update to the latest 3.6.1 release. Apache Solr provides a horizontally scalable indexing and search platform based on Apache Lucene.
Jenkins has been updated to version 1.466.2, the latest LTS release from the Jenkins project.
Virtualisation
KVM ha
This article describes how to use MySQL in Docker and the simple internal setup steps. if you need it, refer to the virtualization technology mentioned below. I am a linuxContainer (LXC). But with the increasing popularity of Docker technology, I want to show you how to use Mysql with Docker
What is Docker?
In fact, Docker is the LXC encapsulation. It is very interesting to use. Docker uses
For example, show the time in the form:Wrong idea one: I write a dead loop in the form structure function, showing the current time every second Public FORM6 () { InitializeComponent (); while (true) { = DateTime.Now.ToString ("yyyy mm month DD day hh" mm min ss sec "); System.Threading.Thread.Sleep (+); } }structure function Write cycle display timeError reason: Structure function infinite loop, structure
---restore content starts---First, the basic part:1. What is JavaScript?is a scripting language , is a weak type (language grammar is very casual), C # is strongly typed (language syntax is very strict) (Li brainstorming Lxc)Advantages: JS execution Speed is fast2. What is the relationship between JS and Java? It doesn't matter.3, JS can do what things?Ability to control browser BOMControl Element DOMJS can't do what?Cannot manipulate files (read, cre
, in doing this, we decided to do a lightweight class virtual machine, the decision was to run the process on a machine directly, Then encountered a lot of problems, such as from the operation and maintenance system, I hope that ssh to "machine", independent IP, see their system indicators and so on, in order to solve these problems, with more than n black technology, made very sad, more sad to urge the problem is not much, so with some machines ran this mode, The result finally found here to bl
. It can be started, started, stopped, deleted. Each container is a mutually isolated, secure platform.You can think of a container as a simple version of the Linux environment (including root user rights, process space, user space, and network space) and the applications running in it.* Note: The image is read-only and the container creates a writable layer at the top level when it is started.Docker has been using Libcontainer to replace the interaction of
machine or virtualize them.2, RocketRocket (also known as RKT) is a container engine launched by CoreOS, similar to Docker, which helps developers to package applications and dependencies into portable containers, simplifying deployment tasks such as environments.3. Ubuntu (LXC)LXD is a refactoring of Ubuntu based on LXC technology, which naturally supports non-privileged and distributed containers. LXD an
capsule container containing your application," Bottomley says. As a result, with a fully tuned container system, you can have up to four to six times times more server application instances on the same hardware than using Xen virtual machines or KVM VMs, according to Bottomley.Does that sound like a good idea? After all, you can let the server run much more applications. So why didn't anyone do it before? Actually, someone has done it before. The container is actually an old concept.Containers
features to improve container technology efficiency:
NamespacesActs as the first level of isolation. Ensure that a process is running in one container and cannot see or affect other processes outside the container.
Control Groupsis an important part of LXC and has the key function of resource accounting and restriction.
UnionFS(file system) as a building block of a container. To support the lightweight and fast nature of Docker, it c
Speaking of virtualization technology, I love linuxiner iner (LXC. But with the increasing popularity of Docker technology, I want to show you how to use MySQL with Docker.
What is Docker?
In fact, Docker is the LXC encapsulation. It is very interesting to use. Docker uses LXC to virtualize each application. In the following example, we will start a mysql instanc
Docker is best installed on Centos7, centos6.5 seems a lot of troubleHere to install directly on the CENTOS7, to pre-load Epel repoYum install Docker installation on lineChkconfig Docker onService Docker startSet the Docker service to start every time you boot, and then start the Docker serviceThen you can grab a mirror from Docker pull CentOS.and Lxc slightly different is, LXC and ordinary virtual machine
executable application conflicts with the Docker package name, so we renamed Docker's RPM package name Docker-io
Yum Install Docker-io
Docker configuration file path: /etc/sysconfig/docker
Start Docker
# Join Boot
$ sudochkconfig Docker on
#开始运行 Docker Daemon
$ sudoservice Docker Start
#查看状态是否启动成功
$ sudoservice Docker status 1.2 offline installation package installation
Upload the Docker installation package and the required dependencies to the server directory.
Perform the following instructi
open source application container engine that allows developers to package their apps and dependencies into a portable container, and then publish it to any popular Linux machine or virtualization.
2, Rocket
Rocket (also known as RKT) is a container engine launched by CoreOS, which is similar to Docker, helping developers pack applications and rely on packages to portable containers to simplify the deployment of environments.
3, Ubuntu (LXC)
LXD is a
Article Title: from pressing the power switch to the bash prompt. Linux is a technology channel of the IT lab in China. Including desktop applications, Linux system management, kernel research, embedded systems and open source, and other basic categories. This section describes the process of linux from pressing power to displaying bash prompts. Understanding these details is very helpful when you encounter problems or want to configure the system.
1. Preface
I find many things happen on my li
. msg_iovlen indicates the size of the structure array. msg_control and msg_controllen are the two variables used to receive and send control data. msg_flags specifies the operation options for receiving and sending control data. the options are the same as those of recv and send.
6.4 socket disabling
There are two functions for closing the socket: close and shutdown. close is the same as closing the file.
6.5 shutdown
Int shutdown (int sockfd, int howto
receiving and sending control data. the options are the same as those of recv and send.
9. Socket disabling
There are two functions for closing the socket: close and shutdown. close is the same as closing the file.
Shutdown
Int shutdown (int sockfd, int howto)
TCP connections are bidirectional (read/write). When we use close, all read/write channels are closed. Sometimes we only want to close one direction, in this case, we can use shutdown. for
sent by Ip_queue and read it to the buffer.Ipq_message_type (3)Determines the type of message inside the buffer.Ipq_get_packet (3)Gets a packet message from the buffer.Ipq_get_msgerr (3)Gets an error message from the buffer.Ipq_set_verdict (3)A decision is placed on a packet, optionally, to replace its contents.IPQ_ERRSTR (3)Returns an error message associated with an internal ipq_errno variable.Ipq_perror (3)Print the error message to StdErr's helper function.Ipq_destroy_handle (3)Destroys the
*/size_t Iov_len;/*the length of the buffer*/ };Msg_name and Msg_namelen when sockets are non-connection-oriented (UDP), they store the address information of the receiving and sending parties.Msg_name is actually a pointer to a struct sockaddr.Msg_namelen is the length of the structure. These two values should be set to NULL when the socket is a connection-oriented.Msg_iov and Msg_iovlen indicate which buffer content to accept and send. Msg_iov is a struct pointer, Msg_iovlen indicates t
=articleid=ad081901Databinding and XML http://www.aspnextgen.com/tutorials.aspx?tutorialid=12Databinding custom classes http://www.dotnetjunkies.com/tutorials.aspx?tutorialid=328Dataformatstrings attributesDataGrid and checkboxes http://aspalliance.com/das/datagridcheckbox.aspxDataGrid and Column Binding http://www.aspng.com/learn/columnbinding.aspxDataGrid code samples for beginners http://www.dotnetbips.com/displayarticle.aspx?id=62DataGrid events (sort, edit, delete) http://www.aspng.com/lear
SDKIn Microsoft Windows Script technologies, this section describes the concept, background, architecture, and call steps of the activity script.
If you need sample code, you can search for the kbaxscript keyword in the Microsoft Knowledge Base (KB. Below are some examples
Q223139 HOWTO: add support for hosting VBScript to an ATL Application
Q182138 sample: axsh.exe demonstrates implementing ActiveX script hosts
Q168214 sample: mfcaxs.exe impleme
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