grc scan

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

Document directory I. Software Packages I. Software Packages 1. nmap-5.21.tar.bz2 Ii. Installation Steps 1. tar xvf nmap-5.21.tar.bz2 2. cd nmap-5.21 3../configure 4. make 5. su root 6. make install 7. nmap www.sina.com Starting Nmap 5.21 (http://nmap.org) at 2010-07-15 CST Nmap scan report for www.sina.com (202.108.33.89) Host is up (0.0042 s latency ). Hostname www.sina.com resolves to 16 IPs. Only scanned 202.108.33.89 Not shown: 999 filtered po

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

Label: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 going to explain whats SCAN and how it works.SCOPEIntended audience'll be DBAs who's installi

Tags: war RAM table structure contains MPI about first ROC structureIt is not difficult to realize that the core content of the optimized statement execution is the processing of various scheduling nodes from the optimized statements described earlier, and because of the design of node representation, recursive invocation, unified interface and so on, the function of the plan node is relatively independent and the code overall process is similar. The following describes the execution of the vari

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.

WIN10 with anti-virus software Windows Defender, the default daily scheduled scan. This would have been a good thing, but when it comes to scanning, it will inevitably clash if you catch a high-speed computer operation. In fact, we can set Windows Defender plan Scan, how to set it? Open the Local Group Policy Editor (method for starting Group Policy Editor under the WIN10 System), and in the left navigatio

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

Nmap Tutorial using the Nmap command example (Nmap use method) Browse:8268 | Updated: 2014-03-29 17:23 Nmap is a very useful tool for network scanning and host detection. Nmap is not limited to collecting information and enumerations, but can also be used as a vulnerability detector or security scanner. It can be applied to operating systems such as Winodws,linux,macNmap is a very powerful utility that can be used to: Detect hosts on the network (host discovery) detect open

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

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

The port is the current computer and outside the channel, so once the hacker locks the target computer, it will scan the computer is already open port, so as to get more useful information. Scan destination computer ports generally use Superscan, X-scan, and so on.First, the principle of port scanningBefore scanning the port, the user must understand how the port

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)

Enterprise Port Scan Policy 1, the purpose of port scanning for the computer system located in the network, a port is a potential communication channel, that is, an intrusion channel. Port scanning of the target computer can get a lot of useful information to discover the security vulnerabilities of the system. It can make the system users understand what services the system is providing to the outside world, thus providing a reference means for the

Requirements Function Description: This customization requirement is produced in the context of national differences in various countries, and requires adding a new partition such as MyImage in the system to enable the storage of customized resources to meet the experience of users in different countries. For example, the new Media folder under MyImage is used to store customized audio resources, if the system myimage partition, the relevant directory or file exists in the media directory, the s

In this DocumentApplies To:Oracle server-enterprise edition-version 11.2.0.1 to 11.2.0.3 [Release 11.2]Information in this document applies to any platform.PurposeRuninstaller (OUI) reports INS-20802 while running Oracle Cluster verification Utility Post check after successful 11gR2 G Rid Infrastructure clusterware (CRS) installation or upgrade: Installation log-$ORACLE _base/orainventory/logs/installactions{$TIMESTAMP}.log INFO: PRVG-1101 :