how to make cat5 connection

The error is as follows: Org. PostgreSQL. util. psqlexception: the connection is rejected. Check the host name and port number and make sure that the postmaster can accept the TCP/IP connection. At Org. postgreSQL. core. v3.connectionfactoryimpl. openconnectionimpl (connectionfactoryimpl. java: 136) at Org. postgreSQL. core. connectionfactory. openconnection (con

The best answer is:Http://www.zhihujingxuan.com/23124.htmlTCP connection, HTTP connection, and socket connectionHttp://www.blogjava.net/thisliy/archive/2009/11/08/301615.htmlThe TCP/IP protocol-based socket communication between the Android and server terminalshttp://blog.csdn.net/ryantang03/article/details/8274517CDMA wireless terminal with embedded TCP/IP protocolHttp://www.ednchina.com/ART_24871_29_20027

First, connect the database 1. Mysql_connect: Open MySQL Link Mysql_connect (' host ', ' username ', ' password ') 2. mysql_select_db: Open a Database mysql_select_db (' database name ', $ link identifier)//link identifier not filled by default is the last open connection 3, mysql_query ("Set names ' GBK '") to solve the problem of Chinese garbled; mysql_query ("Set Names ' code (UTF8 or GBK) '")//utf8 cannot have "-" Second, query data 1, mysql_query

OpenVPN is a very powerful VPN server software, and some netizens want to know how to make Windows connection use OpenVPN. So, today's small series for everyone in particular to organize a related article. Before learning this tutorial, please users to download OpenVPN client, and then follow this tutorial to learn and operate! 1, first open the OpenVPN folder, in addition to prepare the OpenVPN line confi

Oracle 64-bit PL/SQL connection error Make sure you have the 32 B... oracle OraDb11g_home 64-bit under Windows 64-bit server. PLSQL Developer has the following problems: 1. The Database drop-down box is blank. 2. Enter the user name, password, and Database. The logon prompt is displayed: initialation error cocould not initialize ".... "Make sure you have the 32 b

Problem:Start Python prompt error:IDLE ' s subprocess didn ' t make connection. Either IDLE can ' t start a subprocess or personal firewall software is blocking the connection.Reason:That's usually means that your firewall was blocking IDLE, so enable it in your firewall. If that's doesnt work, does this to fixIt (with some disavantages):Workaround:1. Open c:/python24/lib/idlelib/pyshell.py (Python installa

1. Error descriptioncaused By:org.hibernate.HibernateException:Unable to make JDBC Connection[jdbc\:mysql\://localhost\:3306/school]2. Cause of ErrorWhen you configure the database path in Hibernate.cfg.xmlJdbc\:mysql://localhost\:3306/school3. SolutionsModify the above configuration toJdbc:mysql://localhost:3306/schoolcaused By:org.hibernate.HibernateException:Unable to

Android uses the network framework Volley recommended by Google to make the connection network easier. androidvolleyHello everyone, with the advancement of technology and the development of technology, few applications are stand-alone. Most of them require online access servers. We used them in the past.Httpclient and httpurlconnection feel very troublesome, but Google has launched Volley for developers, so

\systemfileassociations\.py \shell\edit with IDLE (py3) \command Setting the value to:c:\python33\pythonw.exe c:\python33\lib\idlelib\idle.pyw-e%1 T Hen edit with Idle is back and I-ran the program from IDLE and it worked! I can ' t thank you enough for responding to my question and nailing it, I really appreciate it. Wish would let me vote upThis is the answer of some of these netizens, come from: http://stackoverflow.com/questions/15888186/ Cant-run-python-via-idle-from-explorer-2013-idles-

To connect to a SQL Server database in. NET, you need to introduce the System.Data.SqlClient namespace:1, the simplest way to connect:1 New SqlConnection (); 2 @" Data Source=.;i ntegrated security=true;initial catalog=time"; 3 Conn. Open ();where "Data source=." Indicates a connection to the local database, "Integrated security=true" means Windows Authentication, "Initial catalog=time" means connecting to th

Deploy Windows Mobile 6.5 when connecting devices todaySmartphone ApplicationProgramThis error occurs. "The device security configuration does not allow connection. Make sure that you have the appropriate certificate for the device you are developing. For the correct security settings for connecting to this deviceAn error occurred while checking the SDK documentation. There are two solutions:1. Run the foll

You can think of WebSocket as an HTTP protocol. In order to support a large patch of long connection, it and HTTP have some commonality, is to solve the HTTP itself can not solve some problems and make an improved design. In the previous HTTP protocol, the so-called keep-alive connection refers to the completion of multiple HTTP requests in a single TCP

Small make up just change Win7 system, because no one teaches and oneself also quite understand the system, so ah for face, Half-day can't find local connection also can only own silently look for. I really can't find it in the end. 1 Why do you want to find a local connection: Because small knitting computer can only on QQ, can't browse the webpage, play the

there is no connection string value at all. I got the information "cannot find the connection string" TDL "". After several gritted teeth, I found that (thanks to the help of David Ebbo) Elements placed in web. config Errors are swallowed up. Obviously, that part is quite loose to the element, and it does not understand-the system. web part is certainly loose. In any case, we hope it will save

Python IDLE error: IDLE's subprocess didn't make connection solution, pythonsubprocess Python IDLE error description: Subprocess Startup ErrorIDLE's subprocess didn't make connection. Either IDLE can't start a subprocess or personal firewall software is blocking the connection