Label:Cause Analysis:For the Start menu interface in Windows 8 modern style (note: The original metro style), you can either PIN or cancel the tile. If you cancel just one tile, such as "desktop," You can still go to all apps to select and then re-pin it. Please read the procedure for details.Solution:1. Click the right mouse button in the blank Space of the Start menu screen. Then the bottom will pop up "all apps" prompt, left mouse button click;
2. In the list of all apps, find the "desktop"
1 SCAN OverviewBefore a netizen in my blog message said my RAC build did not write scan configuration, this should have been written before, but just searched a bit, did not find, just re-clean up, and do the experiment, the experiment with Oracle 12c test.Before Oracle 11g, we went to connect to a RAC cluster, all configured as follows:Dave_rac=(DESCRIPTION =(Address_list =(load_balance = yes)(Failover=on)
Grid Infrastructure single Client Access Name (SCAN) explained (document ID 887522.1)
Applies to:oracle database-enterprise edition-version 11.2.0.1 and laterExalogic Elastic Cloud x4-2 half RackInformation in this document applies to any platform.PURPOSE11gR2 Grid Infrastructure (CRS) introduced single client Access Name (SCAN) to simplify Client access to database services , this article was
OracleRAC cluster SCAN description
1 SCAN Overview
Some netizens posted a message on my Blog saying that I didn't write SCAN configuration in my RAC setup. This was supposed to have been written before, But I just searched for it and did not find it. I just sorted it out again, perform the following experiment and use Oracle 12c for testing.
Before Oracle 11g
In Oracle 11gR2, the features of the scan (single clientaccess Name) are introduced. Scan is a domain name, can resolve at least 1 IP, up to 3 scan IP, the client can access the database through this scan name, in addition the scan IP must be with the public IP and VIP in a
A scanner is a program that can automatically detect the vulnerabilities of a host's security. The scanner collects all kinds of information about the target host by sending a specific network packet, recording the response message of the target host. At present, there are many scanning software on the network, more famous scanners have Sss,x-scan,superscan and so on, the function is most powerful of course is nmap.
Nmap (Network Mapper) is an open s
NMAP provides four basic functions (host discovery, port scanning, service and version detection, OS detection) and a rich scripting library. Nmap can be used for simple network information scanning, but also in high-level, complex, specific environment: such as scanning a large number of hosts on the Internet, bypassing the firewall/ids/ips, scanning web sites, scanning routers and so on.Briefly review Nmap simple scanning method:Full Scan: nmap-t4-a
In 11gr2, the feature of scan (single Client Access Name) is introduced, and the advantage of this feature is that the
DatabaseAnd the client, added a layer of virtual service layer, is called Scan IP and scan IP listener, in the client only need to configure the scan IP TNS information, through
Author:echo Chen (Chenbin)Email:[email protected]blog:blog.csdn.net/chen19870707date:jan.4th, 2015iOS projects and clang projects can use Scan-build to implement static analysis of code to find code flaws.1. What is Scan-build?
Scan-build is a command-line tool that helps users run static analyzers to check their code to find out the flaws in the code.
Oracle 11g modifies the rac scan ip address in 11gR2 and introduces the SCAN (Single Client Access Name) feature. The advantage of this feature is that between the database and the Client, A virtual service layer is added, that is, the scan ip address and scan ip listener. on the client side, you only need to configure
graphical interface tool to Nmap.1, from the official website of nmap download Namp installation program.Official website https://nmap.org/download.html2, Installation Namp programDouble-click the installer to perform the installation, all by default. Installing Namp under the Windows platform requires the installation of a packet capture library WINPACP, which helps its callers, such as Nmap and Wireshark, to capture raw data transmitted over the network card.3. Test whether the installation i
Reference: http://www.luocs.com/archives/281.html
Http://www.oracle.com/technetwork/products/clustering/overview/scan-129069.pdf
These days to do 11g RAC experiment, only to discover the concept of Oracle 11g scan IP, at the time of installation, directly in the host file added a scan corresponding resolution, after the installation succeeded. After the search on
Tags: database oracle performance databasesWhen SQL statements are executed, the Oracle optimizer determines how tables are accessed based on statistics, and generally, there are two basic ways to access data: 1) Full scan. In a full scan (full-table scan or fast full-index scan), multiple blocks are read into an IO op
Preface:
In most cases, a table scan or index scan is not an efficient way to return a small amount of data, especially from a large table. These must be found and resolved to improve performance because the scan traverses each row, finds the eligible data, and returns the results. This kind of processing is quite time-consuming and resource-consuming. In the pe
First, the editing environment:
1. The confidential Installation Curl command, download address: https://curl.haxx.se/download.html (note: There are too many versions, we download a as long as there are curl.exe)
2. Need Jsoup jar, this search on Baidu can see a lot of.
3. Test words need to install Acunetix11, this well, the current online has not provided (anyway, I did not find) free, we first temporarily ignore this point, continue to go on, cut to the chase.
It takes 4 steps to first invo
In some cases, because it is the C/s architecture, from the previous stand-alone system to the current 11.2 of the RAC, if the client IP address to modify the workload is too large, but also unrealistic, generally recommended directly modify the scan IP address and before, so as to achieve direct business access scan IP implementation applications do not need to be individually configured. Here through a si
Due to field application needs, the newly configured Oracle RAC environment needs to be added with 2 Scanip addresses, 10.138.129.106 and 10.138.129.107.
Pre-configuration scenario:
[grid@db1 ~]$ srvctl config scan----View configuration information for scanSCAN Name:scan-ip, Network:1/10.138.129.0/255.255.255.0/eth2SCAN VIP name:scan1, IP:/scan-ip/10.138.129.105
[GRID@DB1 ~]$ srvctl Status
Release date:Updated on:
Affected Systems:AVG Anti-VirusFrisk F-Prot AntivirusVirusBlokAda Vba32 AntiVirusAVIRA AntiVirDescription:--------------------------------------------------------------------------------Bugtraq id: 51861
. Kz is the proprietary archive format of KuaiZip. Frisk F-Prot Antivirus, Avast! Antivirus, g data, Ikarus, Softwin BitDefender, Kaspersky Anti-Virus, ClamAV Panda Antivirus, CPsecure, Quick Heal, Dr. web, Sophos, emsisoft An
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