solarwinds network performance monitor

Nmon command to monitor the system resource consumption in real time:CPU, memory, disk, and network consumption are all visually displayed.Three. Generate the Nmon report.1). Collect Data:#nmon-s10-c60-f-m/home/Parameter explanation:The-S10 collects data every 10 seconds.-c60 collected 60 times, that is, the acquisition of 10 minutes of data.-F generates a data file name that contains the time when the fil

. The main functions to be implemented are as follows: 1. system status, such as cpu, memory, and swap; 2. MySQL performance and running status;Others are mainly disruptive data storage and visualization. 1. Use SNMP to capture system status SNMP is indeed a very convenient protocol. It can be used to obtain almost all the information of network devices. Both Linux and Windows can be well supported. MIB

This article describes how to install and configure MySQLMTOP to monitor MySQL running performance. MySQLMTOP has a BS graphical operation page. For more information, see I. environment description1. server role 2. system environmentCentOS 6.2 x86_64 3. environment requirements(1) MySQL 5.0 and above (used to store data collected by the monitoring system)(2) Apache 2.2 and above (WEB server running server

A monitor in front of the monitoring is defective, this article uses jmeter4.0+ version, using plug-in Sshmon Samples collector to do resource monitoring1. Download the plugin: Plugins-manager.jar, then put it in the Lib/ext directory and restart the jmeter.2. Open options--> Plugins Manager, tick Sshmon Samples Collector in the "Available Plugins" column and click Apply Change and Restart Jmeter3. The use of this plugin, the need to point the Linux S

Normally our computer card, the first thought is usually 360 security guards all kinds of cleaning. People who use computers for a long time are using Task Manager to clean up some of the more memory-taking programs, but if you can use Win7 's own performance detectors, you'll see more intuitively. 1 We can enter the performance checker by typing "perfmon" into the runtime. 2 The function of the

The quickest way to quickly view the usage of a host is as follows: 650) This. width = 650; "style =" width: 741px; Height: 461px; "Title =" 1.png" alt = "wkiol1ph2fpsi_kpaak8qmbs7g8117.jpg" src = "http://s3.51cto.com/wyfs02/M00/3E/D6/wKioL1PH2FPSi_KpAAK8qMBs7g8117.jpg" width = "1157" Height = "470"/> The following describes how to monitor a host 650) This. width = 650; "style =" width: 742px; Height: 475px; "Title =" 2.png" alt = "wkiom1ph147j8oheaam

-minute, 15-minute average load-m,-mem: Display memory condition-N,-net: Display network condition-n eth1,total: Display specified network interface-p,-proc enable process S　Tats: Enable status of the process display-S,-swap: Show swap condition-s swap,total: You can specify multiple swap-t,-time enable Timecounte: Displays the current system time--IPC: Reports on the use of IPC Message Queuing and semaphor

];//Collect error information, error script file network address, user agent information, time varurl = report_url + m.join (' | | ');//Assemble error escalation information content URL varIMG =NewImage; Img.onload= Img.onerror =function() {img=NULL; }; IMG.SRC= URL;//send data to background CGI } //Monitoring Error EscalationWindow.onerror=function(msg,url,line) {error (Msg,url,line); }Resources: http://mp.weixin.qq.com/

for new TCP connections, which defaults to 0, which means shutdown; Net.ipv4.tcp_tw_recycle = 1 indicates a fast recovery of time-wait sockets in a TCP connection, and the default is 0, which means close; NET.IPV4.TCP_FIN_TIMEOUT=30 modifies the default timeout time for the system . If the above configuration tuning performance is not ideal, you can continue to modify the configuration:Vi/etc/sysctl.confnet.ipv4.tcp_keepalive_time = #表示当keepalive

Netstat same usageNetstat-an |awk '/^tcp/{++sta[$NF]} END {for (key in STA) print key, "\ T", Sta[key]} ' can view all states(if the established is large, the system is busy, usually within 1000)Five, Linux under Grab Bag (tcpdump)Tcpdump-nn the first n means that the IP is displayed in digital form, if the hostname is not displayed,Look at the flow of data.Usually TCP, if you see a packet of UDP can be attacked. (DDOS UDP flood flood attack, if you encounter this can only access professional a