1. Telnet command
(1) smooth ports
[Root @ portal_a/] # telnet 10.4.200.114 8500
Trying 10.4.200.114...
Connected to 10.4.200.114 (10.4.200.114 ).
Escape Character is '^]'.
(2) Port failure
[Root @ portal_a/] # telnet 10.4.200.114 9028
Trying 10.4.200.114...
2. NMAP command
---- Determine whether the machine port is open. View state
--------- Filtered: (filtered): it means that the firewall, filter, or other network barriers prevent the port from be
console application named "serverconsole", which represents our server. If you want to communicate with the outside world, the first thing to do is to enable listening to the port, which is like opening a "Door" for the computer ", all requests sent to this "Door" will be received by the system. In C #, follow these steps to create a system by using the local IP address and port number. net. sockets. tcplistener-type instance, and then call the START () method on the instance to enable listenin
How to effectively determine whether several sets of data range has the intersection
5000~7000
2000~6000
8000~9000
4000~8500
5000~7000
How are these random sets of data in PHP more effective in judging if there are duplicates?
Expectations are
2000~4000
4000~5000
5000~6000
6000~7000
7000~8500
8500~9000
PHP
Share to:
------Solution--------------------
Label:Today, when configuring distribution, I encountered an error, unable to open the SQL Agent, the detailed error message is as follows: SQL Server blocked access to procedure ' dbo.sp_set_sqlagent_properties ' of component ' agents XPs ' because this component is Turned off as part of the security configuration for this server. A system administrator can enable the use of the "Agent XPs ' by using sp_c
The general flashpaper supports Word, Excel, and PDF files. Therefore, there are many problems with the support for Silverlight XPS documents. This control provides a visual XPS document display, it provides zoom-in, zoom-out, print-out, search-and-Paging functions, and mainly integrates the open-source document toolkit.
1. Document toolkit is used. documentdatasource provides the data source. pagenvaig
Group in the local Windows Group; the SQL Server service account group SQLServer2005MSSQLUser $ DBSRV1 $ MSSQLSERVER in the local Windows Group; SQLServer2005SQLAgentUser $ DBSRV1 $ MSSQLSERVER in the SQL Server service account group of the local Windows Group.
2. Check whether the database login name has DBSRV1 \ SqlStartUser.
3. Check the Event Viewer application's Service Startup Process Information:
Type source description
① MSSQLSERVER user 'dbsrv1 \ sqlstartuser' is successfully reviewed.
the PS and PL sections, and this first needs to know how to customize the generic IP core, import it into PS, and then write drivers and applications to get started. I just started also confused, check Help, the official tutorial, but most of the information is just how to use the ISE provided by the off-the-shelf IP core, for how to define the user's own IP core is either not say or talk is very vague, the author personally toss more than 10 times before finally understand, the detailed proces
consul service is started, we can access, http://localhost:8500 to access the consul management background, the interface is as follows.In this admin background, you can view all the services and all host nodes registered by Consul.Registration ServicesAfter the consul service is started, we can invoke some of the appropriate APIs to register the service (related API list https://www.consul.io/api/index.html)Continue with our exampleNow we are trying
It seems that there are still a lot of people who use ATI graphics cards. It is a pity that a classic video card like 8500 cannot run 3D games under X.
!! Note 1: This article only applies to 8500 and above graphics cards. ATI does not officially mention support for radeon/7000/7200/7500.
!! NOTE 2: redhat9 has good 2D support for ATI graphics cards and supports 3D acceleration to a certain extent, if you d
Reprinted from: http://www.juuluu.org/html/softDoc/2011/10/19/09/45/wtpnkjxlwt.html
The following are the implementation Notes for an Rmi project:
Environment: Firewall (XX guardian) Internet IP Address: x. x. x.135 port: 8400/8500 Intranet IP Address: x. x. x.90 port: 8400/8500
The Intranet and Internet IP addresses and ports are mapped to each other. (the Internet IP addresses are configured on the fire
in the above demonstration of several machines choose a node2 to do Consul server (consul server is best also configured to cluster mode, to achieve consul own ha, this article in order to quickly introduce the function will not be set up, only one node).It is also important to note that this article selects a business node as the running location for the Configuration Storage service, but it is generally recommended that the base service be separated from the node running the business containe
radeon 8500 is indeed not flattering. When the anti-sawtooth function is enabled, the performance will still decrease. Therefore, radeon 8500 automatically reduces the level of texture details after enabling the anti-aliasing function, thus reducing the throughput of the memory bandwidth. However, the texture quality becomes very bad. (Full screen anti-sawtooth is not enabled on 7 and 8, smoothvision 6x is
step is to use an example to show how to find a service node. Complete code See https://github.com/changjixiong/goNotes/tree/master/consulnotes.
Suppose that in a system, node A needs to access a service that has n nodes to serve, which are located in the service cluster GROUPB, and Node A only needs to connect to any node in the GROUPB to get the service.
Start consul
Consul provides a development mode for starting a single node service for development debugging, running the command consul Age
Network Programming (Socket)Here the network programming to do a simple collation, to fill the gaps in their own knowledge. If you want to know, please refer to Zhang Ziyang. The beauty of net.***Concept Storytelling
TCP: Connection-oriented transport protocol (one of the network protocols)
Remote host: Remote access for cross-process access
Sockets: The link between the transport layer and the application layer, allowing the application layer to program without concern for the transport
>consul Agent-server-ui-bootstrap-expect=3-data-dir=/tmp/consul-node=consul-2-client=0.0.0.0- Bind=192.168.80.101-datacenter=dc1-join 192.168.80.100
192.168.80.102>consul agent-server-ui-bootstrap-expect=3-data-dir=/tmp/consul-node=consul-3-client=0.0.0.0- Bind=192.168.80.102-datacenter=dc1-join 192.168.80.100
Note that in the start command for 101 and 102, there is a sentence of -join 192.168.80.100 = 101 and 102 are added to the cluster where 100 is located.After launch, the cluster b
How to preview Office files in WinForm, and how to preview office in winform
This article shares with you how to preview the Office document in WinForm. The content is as follows:
Use WinForm, WPF, and Office Components
Principle: use the Office COM component to convert Word and Excel into XPS documents, and host the WPF DocumentViewer control to WinForm for preview.
1. Create a WinForm Project
2. Create a WPF user control.
3. Edit the WPF User Contr
(); _ filename = filename ;}Private String_ Filename;Private VoidMhtreader_load (ObjectSender, eventargs e ){If(!String. Isnullorempty (_ filename) {webbrowser1.navigate (_ filename );This. Text = path. getfilenamewithoutextension (_ filename );}}}
This plan also gave up because of poor efficiency. It is really slow to open MHT files with IE. Sometimes it is unacceptable to allow script code to run without stopping the settings. Therefore, the MHT format is not converted to the RTF format in
If you use the office file format, you can study it. In addition, if you are a friend of the sharing software, you can consider the format conversion tool or class library. I found that a recent SourceForge project is doing this: http://b2xtranslator.sourceforge.net, please refer.
Office file (Doc, xls, PPT) format Official Website: www.microsoft.com/interop/docs/officebinaryformats.mspxMicrosoft Word
Word 97-2007 binary file format (.doc) specification PDF | XPSMicrosoft PowerPoint
Powerpoint 9
Since the UI of WPF is expressed in XAML, we can use this advantage to save the XAML element in WPF as a variety of files. In many cases, this operation is not required. Save the XAML as an image, string, and XPS. Here I have written some methods for your reference.
Note: Before saving the following, make sure that the canvas in the parameter is high and wide.
1. Save canvas as a text file
1: using system. Windows. markup;
2: using system. IO;
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