how to establish vpn connection

First, the discovery of problems When I tried to edit the WordPress theme of the blog site, I suddenly found that the blog site could not connect, and then prompted the error "Establish database connection error" after refreshing. The natural idea is that MySQL may be wrong, so they landed on the VPS host, trying to start the MySQL service, but prompted failed. Ii. Solutions 1. Open /var/log/mysql/error.

[] arry) {getconnection (); Try{PST=conn.preparestatement (SQL); } Catch(SQLException e) {//TODO auto-generated Catch blockE.printstacktrace (); } for(inti=0;i){ Try{pst.setobject (i+1, Arry[i]); } Catch(SQLException e) {//TODO auto-generated Catch blockE.printstacktrace (); } } Try{rst=Pst.executequery (); } Catch(SQLException e) {//TODO auto-generated Catch blockE.printstacktrace (); } returnrst; } //update function without parameters (add, mo

: Execute Regedit at the runtime to enter the Registry Start→Run→Regedit Follow the path below HKEY_LOCAL_MACHINE/system/CurrentControlSet/services/oracleorahome90tnslistener Locate oracleorahome90tnslistener (I am using Oracle9i and other versions should be oracleorahomxxtnslistener) After finding it, you will find that the key value of ImagePath does not exist. Create it: (if it exists, click Modify. The modification method is described below) Right-click and choose new key (n)> st

again, and I suddenly found out that the mistakes I had made changed. 4. The answer is surfaced the error message is as follows In other words, Sid is not found, then SID is what east, this SID should be your database name, but my database is called DRP, this is what reason, so again on the Internet to check a bit. Click to view the original URL The main reason for not showing it all here is that the SID is configured in Oracle's Listener.ora file, t

There are a number of solutions available on the Internet, mainly in the following ways:1 shut down Windows Firewall;2 Turn off IPv6 or set IPv4 preferences, specifically: In Device Manager, Show hidden devices, disable a network device beginning with "Teredo", Increase in Eclipse.ini file (last line parameter) OpenFile-vmargs-djava.net.preferipv4stack=true 3 Turn off the virtual NIC (virtual network adapter created by VMware, VirtualBox, etc.);My first do 2, 32 steps, have no success, f

/system/currentcontrolset/services/oracleorahome90tnslistenerFind Oracleorahome90tnslistener (I'm using oracle9i other version of it should be Oracleorahomexxxtnslistener)Once found, you will find that ImagePath key value does not exist, create it: (if there is, click to modify, the method is described below)Right-click, pop-up menu select New Key (N) → string value (S)Name it ImagePathSelect the ImagePath right-click and select Modify:Enter your Oracle installation directory in the value/ora90

(1) Recently depressed, using DB browser in MyEclipse but the teacher has the following problems:(2) Then hurriedly Baidu, seek the big God solves, the main solution method tries several kinds: (These methods do not have the explanation on the net)1) Change the en in MyEclipse to Zn;2) Change the computer language to Chinese;3) Modify the Listener.ora and Tnsnames.ora files in the Oracle--network--admin directory and set the IP to 127.0.0.1;4) Update your Oracle driver package;5) on the cmd comm

//Workaround://introduce a namespace:usingSystem.Security.Cryptography.X509Certificates;usingSystem.Net.Security;//define the method:Private Static BOOLRemotecertificatevalidate (Objectsender, X509Certificate cert, X509chain chain, sslpolicyerrors error) { //in order to pass certificate validation, always return True return true;}//Call method One://called in the constructor:Staticwxrequest () {//gets the callback function for the validation certificateservicepointmanager.servercertificate

To establish a remote IPC $ connection, you must meet the following conditions: 1. Over-managed passwords; 2. the Sever service is enabled on the remote machine, unless the master knows more; 3. Understand the following Net Use commands. Use X-scan to scan which hosts have ipc vulnerabilities or the hypervisor password is empty. For example, you can obtain the IP address 192.168.0.1 .. Ping it to make s

When I write a program today, I call a third-party DLL file. The local debugging is normal, but the program does not always prompt a BUG after it arrives at the server: "The basic connection has been closed: failed to establish trust relationship for SSL/TLS Security Channel ". Later, the DLL file was decompiled and an error occurred while obtaining the request. Reference WebResponse response = WebRequest.

Today, I encountered a problem when I access WebService through C #. First, I generated a call proxy class through the WSDL provided by the other party. When I tested whether the access was normal, I accessed the formal environment https://api.xxx.xx and everything was normal, when the access test environment is https://apitest.xxx.xxx, The innerexception message "Basic Connection closed: failed to establish