Home LAN in the use of the process, network failures will always occur, a variety of phenomena may occur.
Common failures
1. No NIC driver
Install the network card must install the driver to ensure the normal operation of the network card, generally in the purchase of network cards with the card with the NIC driver, but if the NIC driver can not find (as shown in Figure 1), how to install or set up the network card?
First, let the operating system detect if the NIC is
.
Advanced BIOS Features (Advanced BIOS feature settings)
Set the advanced features of the system.
Advanced chipset Features (Advanced chipset feature set)
Set parameters for the chipset used by the motherboard.
Integrated peripherals (external device setting)
Make the settings menu include all peripherals settings. such as sound card, Modem, USB keyboard is open ...
Power Management Setup (source management settings)
Set the CPU, hard disk, monitor and other equipment power-saving funct
performance diagram.
For the installation of pnp4nagios, we can also install pnp4nagios in source code and yum. The following describes how to install pnp4nagios.
3.1Download the pnp4nagios Software Package
To install pnp4nagios using the source code, we need to download the pnp4nagios software package. We can download it on its official website. As follows:
Http://docs.pnp4nagios.org
Http://docs.pnp4nagios.org/pnp-0.6/start
Http://sourcefo
I. Basic Concepts
Its main function isCurrent Amplification(Analog circuit) andSwitchFunction (digital circuit ).
A transistor is composed of two PN knots, and a shared electrode becomes the base pole of the transistor (represented by B ). The other two electrodes are the collector (in C) and the emission pole (in E ). Due to different combinations, a transistor is formed, which is a type of PNP and a type of PNP
PNP hardware bus drivers ). Driver development in Windows is divided into three main areas: WDM drivers, file system drivers, and Small-port drivers. See figure 1. The Small and Medium port drivers are for display devices, SCSI and network devices, and the file system drivers are for storage devices; WDM drivers are designed for the majority of computer application systems. This article discusses the general design of drivers in the WDM kernel mode.
Before the summer, please see my previous quick installation of the Nagios article.are monitoring the server-side installation configuration:Graphics Dependent Libraries#yum install Cairo Pango zlib zlib-devel freetype freetype-devel gd gd-develRrdtools relies on the use of paint.#yum Install LIBART_LGPL RRDtoolPnp4nagios lead, collect data, display graphics#yum Install Pnp4nagiosChange the display time, or there will be a 8-hour jet lag#vi/etc/php.inidate.timezone = "Asia/shanghai"#vi/etc/pnp4n
(Premium chipset feature setting) sets the relevant parameters for the chipset used by the motherboard.Integrated Peripherals (external device settings) allows the settings menu to include settings for all peripheral devices. such as sound card, Modem, USB keyboard is open ...Power Management Setup sets the energy-saving function of the CPU, hard disk, monitor and other devices.The PNP/PCI configurations (Plug and play/PCI parameter setting) sets the
When the PNP Manager detects hardware, it first references the registry to see which filter drivers will manage the hardware. If necessary (some drivers may have been loaded by the system because of the need for other hardware), it will load these drivers and invoke their AddDevice function. The last AddDevice function creates a device object and connects to the device stack. Thereafter, the PNP Manager ass
resources as they mature. However, Linux2.4 effectively curbed this trend. In a specific environment, Linux2.4 requires less memory. Of course, Linux2.4 includes more features than Linux2.2, and many new features require resources.
Support for more System buses
Linux2.2 supports all major bus in Intel hardware, including (E) ISA, VLB, PCI, and MCA. In addition, Linux2.4 supports ISA Plug-and-play devices (which makes ISA devices almost as smart as PCI) and smart input/output (I2O) devices. M
more
· NLX Intel's latest motherboard structure, the biggest feature is the motherboard, the upgrade of the CPU flexible and efficient, no longer need to update each one of the CPU motherboard design In addition to some of the above motherboard deformation structure, such as ASUS Motherboard on a large number of 3/4 Baby at the size of the motherboard structure.
Functional classification
· PnP functions with a
implement many applications, such as file monitoring, encryption, anti-virus, etc. Due to the introduction of PNP, this application will be more extensive. In fact, this hierarchical model is everywhere in Windows NT/2000/XP. If you don't believe it, run the following command to see it:
Findstr/M ioattachdevice % SystemRoot %/system32/Drivers/*. sys
Almost all listed drivers can be seen as examples of hierarchical drivers. The introduction to the hie
The IRP topic is too big. Basically, this is a box, and everything can be installed in it. I don't know how much content I have missed. In short, I can talk about it wherever I think. Irp_mn_remove_device and irp_mn_surprise_removal
Two events occur when a PNP device is deleted. One is irp_mn_surprise_removal, and the other is irp_mn_remove_device. We can see from the name that both events tellProgramThe employee's equipment is no longer there, so he
Complete analysis of computer sound card service experience and Instances
The sound card cannot be used out-of-the-box"1. Check whether the patch cord of the sound card is correct. For example, for a sound card of Apsara stack opti931, there is an implicit jumper jp3 that is not found in the specification. The short circuit is PNP. When the open circuit is opened, Windows 95 cannot recognize the sound card, but the default is open circuit when leaving
file monitoring, encryption, anti-virus, etc. Due to the introduction of PNP, this application will be more extensive. In fact, this hierarchical model is everywhere in Windows NT/2000/XP. If you don't believe it, run the following command to see it:
Findstr/M ioattachdevice % SystemRoot %/system32/Drivers/*. sys
Almost all listed drivers can be seen as examples of hierarchical drivers. The introduction to the hierarchical driver is almost full of a
typically uses a Power Transistor (also known as a transfer device) as a PNP. This transistor allows saturation, so the voltage regulator can have a very low voltage drop, usually around 200mV; in contrast, the voltage drop of a traditional linear voltage regulator using a compound power transistor is about 2 v. The negative output LDC uses the PNP as its transmission device, and its operation mode is simi
) Nagios Performance Analysis chart role nagios to the service or host monitoring is a transient state, sometimes the system administrator if need to understand the host for a period of time performance and service response status, and the formation of a chart, you need to view the log data to analyze, but this way not only cumbersome, and abstract, but luckily, PnP can help us to do the job.
(2) The concept of P
acpi bios of the PC, enumerating devices in the system and controlling their power usage. Peripheral components Interconnect (PCI) bus drivers to enumerate and configure devices on the PCI bus. The pnp isa bus driver performs similar work on Industrial Standard Architecture (ISA) devices that can use plug-and-play configurations. Stream drivers support high-bandwidth transmission of data streams for faster data processing. This class driver is often
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