Oracle modify listening port 1521
In Oracle, the default listening port number is 1521. Once someone scans this port number, it will know that this server is an Oracle database server. This poses an extremely high security risk, how to modify the default port number of Oracle to 9999:
1. view the listener status
$ Lsnrctl status
2. Stop listening$ Lsnrctl sto
Ubuntu12.10 default installation php5-fpm no listening port 9000, nginx cannot link php5-fpm fix upgrade to ubuntu12.10 nginx reported 502 error, php cannot run. Netstat-an does not find listening to Port 9000. View/var/log/php5-fpm ubuntu 12.10 default installation php5-fpm no listening port 9000, nginx cannot link php5-fpm fixes
After upgrading to ubuntu 12.10,
This article mainly introduces detailed information about how to implement drag-and-drop event listening instances for applets. this method is used in many applications or software development, here we will introduce the implementation of this function by using applets. For more information, see the following article, this method is used in the development of many applications or software. here we will introduce the implementation of this function for
of the packet received just now. The customer then sends an ACK package and confirms that 2nd packets are received to end the connection process. After receiving the SYN/ACK packet from the customer, the server will wake up a receiving process waiting for data to arrive. After three handshakes are completed, the client program starts to send "useful" data to the server. Generally, an HTTP request is very small and can be fully loaded into a package. However, in the above cases, at least four pa
Issue 9th: Wav,mp3 Soft-solution player with similar listening spectrumSupporting examples:V6-916_stemwin improve the experimental _wav,mp3 soft-solution player, with similar listening spectrum (UCOS-III)V6-917_stemwin improve the experimental _wav,mp3 soft-solution player, with similar listening spectrum (FreeRTOS)Routines:http://forum.armfly.com/forum.php?mod=v
Ubuntu12.10 default installation php5-fpm no listening port 9000, nginx cannot link php5-fpm fix upgrade to ubuntu12.10 nginx reported 502 error, php cannot run. Netstat-an does not find listening to Port 9000. View the varlogphp5-fpm.log everything works. Then view etcphp5fpmpool. dwww. co ubuntu 12.10 default installation php5-fpm no listening port 9000, nginx
Analysis of cocos2d-x 2. x to 3. x event listening design change one of the reasons, cocos2d-x3.x
DionysosLai 2015/2/28
For the design of event listening, the cocos2d-x from 2. x to 3. x has undergone a fundamental change. For a long time, it simply considers how to build its own game code and does not explore the advantages and disadvantages of its two designs. Only when I was playing a new game some time
Netstat This command is commonly used in network monitoring. With this command, you can view the current system listening services and established services, as well as the corresponding ports, protocols and other information.Netstat parameter descriptionNetstat parameters, although a lot, but often not much, mainly the following several parameters:Netstat-[ATUNLP]
-a:all, indicating all connections, service
Many friends like to use thousands of listening because they like its lyrics show function. When listening to play songs, it can automatically find matching lyrics on the internet to play synchronously. But if you copy the song to another computer that doesn't have access to the Internet, the lyrics show won't work. In fact, if before the Internet can be heard in the case of songs, lyrics are automaticall
Recently occasionally found a more strange phenomenon, netstat view the listening service port, but only show the TCP6 monitoring, but the service is clearly accessible through TCP4 IPv4 address, then why does not display TCP4 monitoring it?Take the 22-port sshd Listener as an example:grep :tcp 0 00.0. 0.0: 0.0. 0.0:* LISTEN 1444/sshdtcp6 0 0 :::22 :::* LIST
The Oracle 11g listening and warning logs are both in the/u01/oracle/diag/tnslsnr/oracle/listener directory and the/u01/oracle/diag/rdbms/db1/ The DB1 directory has the following names, respectively, listener directories and DB1 directories. Both directories have the following directories: Alert Cdump HM incident incpkg IR lck metadata stage sweep traceWhere the warning log is in the alert directory, the Listener log is under the trace directory. The
Thousands of listening to the player on the net should not be unfamiliar, I do not know how long we have used the "thousands of listening", will convert the format? In fact, it can be in MP3, WMA, WAV, Nero HE-AAC, monkey ' s Audio several audio formats, such as mobile phone MP3 function can not play the WMA format of audio files, the direct use of thousands of listenin
The meaning of carrier listening (carrier sense) is:
Before sending the data, Ethernet "listens" to the cable to determine if there are other data transfers. Consider this scenario: suppose you have multiple telephones hooked up to the same phone line. If you pick up one of the phone microphones and you're ready to call, and you hear someone else talking, you have to wait until that person has finished talking. If no one else is using the line, you c
Tags: Oracle listener.log more than 4G no bootOracle Business system can not connect, check the network, check listening, no problem, tnsping also no problem, is unable to connect, do not think about it. See alert log, the following error,Fatal NI Connect error 12537, connecting to:(Local=no) VERSION Information:TNS for 64-bit windows:version 11.2.0.1.0-productionOracle bequeath NT Protocol Adapter for 64-bit windows:version 11.2.0.1.0-productionWindo
Label:The Oracle default port number is 1521. It's easy for hackers to scan and remember your database every day. So it's necessary to modify the default port number. 1. Check the listening status first Lsnrctl status 2. Turn off monitoring Lsnrctl stop 3. Modify the Listening file 1521====>10001 Sid_list_listener =(Sid_list =(Sid_desc =(Oracle_home =/u01/11g)(Sid_name = PU)))LISTENER =(Description_list =(D
Today, developers have asked me: "The code is not connected to the database occurs." After understanding some basic situations, I hope to get the clue of the problem by viewing the listening log. The first is to determine the storage path of the listening log by the following way:Lsnrctl for linux:version 10.2.0.4.0-production on 21-jun-2016 21:19:56copyright (c) 1991, Oracle. All rights reserved. Connecti
Monitoring-based event handling mechanism preface:We develop apps that need to interact with the user----that responds to the user's actions.This involves the Android event-handling mechanism;Android gives us two sets of powerful processing mechanisms:① event handling mechanism based on monitoring② Callback-based event handling mechanismIn this section, we will first introduce the listener-based event handling mechanismAll right, no more nonsense! We need to understand the model of the
Js bubble events and event listening code analysis bubble events
In js, "bubble" is not a fancy technique that can be used. It is a mechanism for executing the sequence of js events, the "bubble algorithm" is a classic problem in programming. The "bubble" in the bubble algorithm should be more accurate in exchange; the "bubble event" in js is the "bubble" in the true sense ", it traverses the tree layer by layer from the lowest DOM layer, and then att
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