I. Purpose and preparation
Use gns3 and VMWare to simulate the real environment and use prtg to monitor the status of Cisco Routers
Preparations: gns3 simulation routing software and VMWare virtual software, prtg.
Ii. Experiment steps
1) Build the following topology Environment
650) This. width = 650; "Title =" wps23f6. TMP "style =" border-top: 0px; border-Right: 0px; Background-image: none; border-bottom: 0px; padding-top: 0px; padding-left: 0px; bo
Recently a friend asked me such a question, his computer for a while and then closed, not too long after the screen black screen, display no signal input. His problem is actually very simple, that is, the VGA line sent. This question is also a more common problem. Such problems are frequently encountered by many computer users. In fact, as long as you have some understanding of the working principle of the computer, these devices can not damage the simple failure of their own hands to eliminate.
First step: monitor color is not normal, we recommend that you first use the elimination method, as far as possible to eliminate some simple problems, because the display color display is not normal for many reasons, such as monitor color Control Panel is not set up, the display of wire rod contact bad or rust can lead to such problems occur.
The second step: If you are newly bought
This article illustrates how to monitor the occurrence of deadlock in DB2 UDB through concrete examples. There are two types of monitors in the DB2 UDB: The snapshot Monitor and the event monitor. A snapshot, as its name suggests, is a slice of the database's continuous state, and through the snapshot monitor, you can
This article is the nineth of the SQL Server replication series, please refer to the original text for more information.
Replication Monitor allows you to view the health status of the replication configuration component. This assumes that you are following the first eight articles, and that you already have a merge publication and a transactional publication.start the Replication MonitorReplication Monitor
First, check whether the notebook has dual-screen display (DualView) function.Opens the settings item in the Display Properties dialog box, indicating that the video card supports dual-screen display (DualView) If there are two display icons, and if there are no two display icons, see only the shrinking icon on the desktop, indicating that the graphics card does not support dual-screen display (DualView).Next, the notebook computer expanded into a dual-screen display settings are as follows:Conn
Many readers are interested in System Safety Monitor (SSM. It is a Russian system monitoring software that monitors system-specific files (such as registries) and applications.
Program To protect system security. Some features are more powerful than the winpatrol we have previously introduced.
Install and start (you can manually run syssafe.exe) SSM in the installation directory, click Close this windows (Close Window) in the pop-up logo window t
Here we will introduce the C # Lock keyword. It can define a piece of code as a critical section. A mutex can only be executed by one thread at a time, while other threads must wait.
C # language is worth learning a lot. Here we mainly introduce the C # Lock keyword, including the locking of an object in the monitor class.
C # provides a lock keyword, which defines a piece of code as a critical section. A mutex section allows only one thread to
Zabbix and MPM monitoring MySQL
Environment DescriptionA: 192.168.1.190, CentOS 6.3, Zabbix Server deployedB: 192.168.1.191, CentOS 6.3, Zabbix Agent, MySQL 5.5.29 (MySQL Slave)
MPM/Zabbix monitoring structure and deployment stepsMPM/Zabbix monitoring structure:Follow these steps to monitor MySQL using MPM/Zabbix:
Install and deploy Zabbix
Download and install MPM (Performance Monitor for MySQL)
The Framework provides three locking mechanisms: the Monitor class, the Lock key word, and the Mutex class.
In general, lock and monitor can lock objects or functions, while mutex is generally used to lock functions and ensure that functions are synchronously called between different threads, without being affected by the thread priority. When the lock and monitor
One. Monitor usage Maintenance: 1. Display should be placed as far as possible away from the strong magnetic field, such as High-voltage wire, speakers, etc., otherwise the picture tube is easily magnetized. 2. Use the display to orient the monitor as far as possible, because the display factory adjustment is orient-oriented, so that the monitor is affected b
In the article "Synchronizing multiple threads with the lock statement," Use the lock statement to synchronize access to the critical resource in multithreaded threads.The code that uses the lock statement is as follows.Private static Object o = new Object (); Lock (o) { if (account >=) { thread.sleep (10);//cash machine took a nap. Account- =-N; Pocket + + +; }}Use the ILDASM tool to view the IL code corresponding to the above code:It can be found that the lo
Many users will encounter the boot when the monitor does not display, showing no signal status, there are many kinds of reasons.
In the first case, it is true that your monitor is broken, so how do we judge it? Only the simplest Exchange method is used to confirm. Take a different monitor and switch to this host to see if there is a display. If there are not m
the power supply short circuit (especially the line scanning circuit short-circuit), the +80v output of the line scanning circuit is disconnected, from the power output end of a 40w/220v bulb, the power-on, monitor power supply indicator light, indicating power short circuit fault is excluded. The test field scanning circuit power supply +50v, the digital circuit +15v, the control circuit +25v, the video amplifying circuit +80v all is normal.
Detect
Sometimes our monitor will appear ambiguous situation, this kind of situation is more common, encounter this kind of situation, what should we deal with the malfunction of the monitor when we encounter the ambiguity?
The display of the content is ambiguous that the CRT focus is not good, resulting in poor focus on the main reason is the picture tube aging, or the anode high pressure is too low, or focus (f
Http://zhidao.baidu.com/link?url=Kqav4qkQSprC5FnpHPOGJvhqvY9fJ9-Vdx9g_ SWH4W5VOUSDRJO4VL7QIDRG4LWRJVRAB9S9UIPTVOGP7NJVLGIXIAXWWJQZ5LP0TX_IXYCHow does the Process Monitor monitoring progress Operation registry be implemented? Report | Share | 2014-09-14 14:485203751 | Browse 1092 times Operating SystemProcess Monitor This tool is a tool for Microsoft to monitor
Using process_monitor.sh to monitor the crontab configuration of the Hadoop process
You can find process_monitor.sh from the following links:
https://github.com/eyjian/mooon/blob/master/common_library/shell/process_monitor.sh
---------------------------------------------------------Script Content--------------------------------------------------------
#!/bin/sh
# https://github.com/eyjian/mooon/blob/master/common_library/shell/process_monitor.sh
Recently, there is a project to delete the Nginx service generated cache files, because it is not very understanding of the Nginx cache generation strategy, on the internet did not look closely, after discussion, eventually want to introduce the Liunx inotify function, monitoring a liunx directory of various events ( Create,delete,access, etc.).
To find out more about INotify's friends, please refer to the following two posts:
1. http://www.ibm.com/developerworks/cn/linux/l-inotify.html uses ino
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