system monitoring software

[2]-(ip [0] 0xf) Show all FTP sessions. Enter: # Tcpdump-I eth1 'dst 202.54.1.5 and (port 21 or 20' Show all HTTP sessions to 192.168.1.5 # Tcpdump-ni eth0 'dst 192.168.1.5 and tcp and port http' Use wireshark to view details in the dump file. Enter: # Tcpdump-n-I eth1-s 0-w output.txt src or dst port 80 #15: strace-system call Trace system calls and models, which are useful for debugging Web servers and

the ZigBee network by the Coordinator, after the successful establishment, each node will send data from ZigBee to the coordinator, then transfer to the computer, then save in the database, the administrator can switch the light operation according to the actual situation, With the expansion/selection circuit, each lamp can be specified. Under normal circumstances, the system is in automatic control state. Classroom node in every day after the classr

The following is a keyword matching algorithm based on KWIC (implemented in pipeline + filter mode)The key part of the pipeline + filter software system implementation, in many of the keyword search platform using this cycle SHIFT + sort output keyword matching algorithm:The specific requirements are as follows:1, using the pipe-filter style:Each filter processes the data and then sends the result to the ne

Date: 2004/08/07 Author: zcatlinux Source: zclinux The following script is mainly used to monitor the logs generated by the system. As long as some of the logs can be added for monitoring, and the desired log files can be generated in real time for future reference! Note: If the system's log function has been damaged, this method will be invalid. Vi run_log.sh #! /Bin/bash While [true];DoDATE = 'date + % Y

1.0 performance monitoring Performance Tuning is a process of finding system bottlenecks and adjusting the operating system to eliminate these bottlenecks. Many System Administrators think that performance tuning is like cooking with recipes: simply setting a few system para

DirectoryI. Introduction to the use of htop toolsIi. Introduction to the use of Dstat toolsThis blog post for Linux system introduced two commonly used system performance monitoring software basic use, for Linux system we generally want to monitor the object has process, CPU

MAC OS x provides terminal (in the Application-> Utility folder), which is the terminal program as the command-line interaction interface. The way the command line works does make some work easier, such as management and monitoring of some systems, and simple viewing and processing of configuration text. Many users may have experience in terminal using some basic commands, such as LS,RM,MKDIR,RMDIR,CP and so on. This paper introduces some terminal co

Python uses the WMI module to obtain the hardware information of the Windows system: hard disk partition, usage, memory size, CPU model, current running process, self-starting program and location, and system version. Python uses the WMI module to obtain the hardware information of the Windows system: hard disk partition, usage, memory size, CPU model, current ru

Build Nagios monitoring under LinuxOne, what is Nagios1.nagios IntroductionNagios is a monitoring system that monitors the system's operational status and network information.Nagios can monitor the specified local or remote host and service, as well as provide exception notification functionality.Nagios runs on top of the Linux/unix platform, while providing an o

is responsible for operating system control and scheduling tasks, and the other is responsible for processing computing intensive tasks. The two cores work together to form a powerful multimedia processing platform. Based on the dvevm hardware of Texas instrument, we have determined the hardware structure of the video transmission system, designed and developed the sof