For RAC databases with NAT or firewall, ORA-12545 connection Errors often occur when load balance is enabled on the server, because after the server forwards client connection requests to other nodes, the client uses the returned IP address to send a connection request again, resulting in an unrecognized IP address or host name. This article describes the problem and provides a solution.
For more information about RAC listener configurations, see
Orac
One, can be downloaded from www.gns3.com This website, can run in Windows, Linux, MacOS, is learning Cisco routers and switches a powerful simulation tool. The download good name is: Gns3-1.4.0-all-in-one.exe First double-click to install, Here is a brief description of the series of options in the installation dialog box:WinPCAP: This is a foundation for GNS3 to run and grab a bag, so this is a must-have check;Wireshark:gns3 default use of the Capture tool, it is not integrated in the GNS3 i
Juniper Old driver Experience (SRX Firewall optimization) Video course on lineEveryone in the QQ group, the forum often ask questions, many people on the SRX double machine is not very understanding, the actual work encountered too many problems, provoked a little trouble.For this I recorded a Juniper old driver experience (SRX Firewall optimization) Video course, on-line. Only 9 dollars, a nominal charge,
Android emulator is a fully functional simulator that simulates functions such as phone book and call. Even its built-in browsers and Google maps can be connected to the Internet. You can use the keyboard to enter, singlePress the simulator button and enter it. You can even use the mouse buttonClick and drag the screen to operate.
1. Differences between a simulator
Android studio uses configuration for the first time (2) create a project and install the Genymotion simulator androidgenymotion
[Development Environment]
Physical server version: Win7 flagship edition (64-bit)
Android Studio version: official version 1.1
1. Create a project:
1. Create a Project:
Open Android Studio and create a Project. The interface is as follows:
After you have set the project name and path, you can click next:
Ii. Usage of A
Batch Import images and videos to the album of the simulator
Simulator debugging is often used in iOS development. One of the main advantages of simulators isProgramStart block. The most important thing is that if there is no certificate, we can only debug it on the simulator. When using the simulator for debuggin
Android simulator BlueStacks + TCPdump analyzes APP packet capture and bluestackstcpdump
Recently, I want to analyze Android APP packet capture. I found some methods on the Internet, which is the most convenient for Android simulator + tcpdump in combination with my own conditions.
Tools required:
1. Microsoft. NET Framework 2.0 SP22. Bluestack 0.7.5.27003. Bluestack 0.7.5.2700 Root Image4. adb program for
Tutorial Navigation:
1. Daily Simulator Installation Tutorial
2. Daily Simulator install local apk files tutorial
Daily Simulator Tutorial:
1, on your computer download decompression every day simulator software, double-click the icon, into the installation.
2, choose a good installation path, click S
First, the preface
Xshell compared to GNOME terminal, both are terminal simulators (in the Xshell can also perform simple built-in commands, such as "CD", "LS", etc.), the same status. Second, the principle analysis
When it comes to garbled code, you need to understand the encoding and decoding process. Execute the command in the terminal emulator, as shown in Figure 1.
Figure 1
In the above communication process, a series of encoding and decoding processes occur at the command execution unit.
The Android mobile phone OS can be modified through some operations in the simulator to meet your needs. Here we will introduce the concepts of Android simulators in detail. The Android simulator skin has a total of four standard methods, corresponding to the HVGA horizontal/vertical screen) and QVGA horizontal/vertical screen ), you only need to use the-skin
Concepts related to the Android single-thread
Simulator 1.5: AVD creation, ADB Command StrategyDownload the android SDK or ophonesdn from Google to download the ophonesdk. decompress the SDK and create a tool folder under the root directory of the SDK. Double-click emulator.exe to directly start the simulator.Simulator 1.51. simulator appearance customization:480x320, landscape: emulator-skin HVGA-L320x480, portrait: emulator-skin HVGA-P (default)320x2
1, download and install every day simulator
2, computer desktop Right click every day simulator icon, select Open File location
2, find every day Simulator folder in the Simulator management program Tiantianmanager.exe, run the program, will be a little slower, patience
3, click on the
shutting down the firewall from the configuration menu is not working, simply do not install the firewall at the time of installationTo view the firewall status:/etc/init.d/iptables StatusTo temporarily turn off the firewall:/etc/init.d/iptables Stopprevent firewalls from starting at system startup/sbin/chkconfig--leve
Author: arm-WinCE
I have introduced the use of the wince simulator in my previous blog. It should be said that it is more convenient to debug the application on the wince simulator. Today, we will introduce how to debug applications on the wince simulator.
Here I assume that you do not have any tools on your PC and you have no money to buy them. Then you can re
Windows Mobile appProgramAt the early stage of development, you can use the simulator provided by the SDK for debugging, which provides a convenient way for our developers. For general applications, the space occupied is several hundred kb or several MB, which is not a problem in the simulator debugging. However, sometimes, if the program to be installed or the program to be debugged exceeds a certain size,
How to install the smartphone Simulator
From: http://hi.baidu.com/ruokuang/blog/item/8b2adb2aa48e1d2cd52af1c8.html
Simulator: http://bbs.at1.cn/viewthread.php? Tid = 16014
Although software and games on the SP system are not as good as that on the s60 system, it is very eye-catching to look at the various software provided by major websites. The software we want to introduce today allows us to run th
In the Android development process, found that the speed of Android simulator is not generally slow, that is mainly because the Android simulator by default is caused by the ARM processor, here are mainly available in two ways:① uses Intel virtual hardware acceleration to speed up the Android simulator to solve the problem of slow Android
The first is the official download address of the simulator:
Everyone should choose the appropriate version according to their operating system, if you do not know how many bits of your computer's operating system, you can choose 32bit first.
Click the download button to download.
After downloading the compressed package to the current folder, (PS: The path of the simulator, pleas
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