All-Around system monitoring tool dstat 1. what is dstat? With man help, we can see that the official definition of dstat is: versatiletoolforgeneratingsystemresourcestatistics ). The information obtained is similar to dstat, an all-around System monitoring tool. 1. what is dstat? With man help, we can see that the off
After installing the COLLECTD tool on the host, you can obtain data such as cpu,memery,if-traffic of the virtual machine on the host by using the COLLECTD tool. Monitoring of these data can be achieved through Nagios monitoring scripts.The following is a simple monitoring vi
There are many open-source network monitoring tools available on the web for Linux operating systems. For example:You can use the command iftop to check bandwidth usage, netstat to view interface statistics reports, and other tools BANDWIDTHD, speedometer, nethogs, Darkstat, Jnettop, Ifstat, Iptraf, Nload and ntop and so on.But these tools are statistical card access data, if you want to find a like 360 security guard on Windows, can be in real-time s
many other diagnostic tools, you can see through what the database is doing, and even know the performance load of any time zone in the last 30 days and what the database is doing.Although there are excellent monitoring tools like "zabbix,pmm" in MySQL, they can only reflect some performance data curves of database history, for example, TPS is high, temporary tables are used more, there are innodb deadlocks, but for MySQL then Doing , I can only say
I. Overview Jstat is a lightweight gadget that comes with the JDK. Full name "Java Virtual machine Statistics monitoring Tool", which is located in the Java Bin directory, mainly using the JVM built-in instructions to The resources and performance of Java applications are monitored in real time on the command line, including the Heap size and garbage collection status. Visible,Jstat is a lightweight, JVM-
single, enable Excel macros, open a generated Nmon file:2.2 ZabbixZabbix now use more, its configuration ioPS monitoring template has ready-made, direct import can, the plot effect is as follows:2.3 CactiThis is not the introduction of CACTI,CACTI as an established tool, the deployment of documents online is more mature. Its ioPS template:Http://forums.cacti.net/about8777.htmlInstallation steps See:1. Unzi
using Memcache in PHP1. Test codeThis is memcache official test memcache code2. Under Windows detection Memcache: http://download.csdn.net/detail/wujiangwei567/8571637Tool description Detailed Address: http://www.cnblogs.com/xffy1028/archive/2013/02/01/2861706.htmlThe use of memcache in PHP and the Memcache monitoring tool in Windows
. Number of Lookup requests 20 IP (commonly used to find the source of attack) Netstat-anlp|grep 80|grep Tcp|awk ' {print $} ' |awk-f: ' {print '} ' |sort|uniq-c|sort-nr|head-n203. Use tcpdump to sniff 80 ports with the highest number of IPTcpdump-i ETH0-TNN DST Port 80-c 1000 | Awk-f "." ' {print $1″. ' $2″. " $3″. " $4} ' | Sort | uniq-c | Sort-nr |head-104. Find more time_wait connectionsNetstat-n|grep Time_wait|awk ' {print $} ' |sort|uniq-c|sort-rn|head-n105. Check for more SYN connections
main cache mode: Buffer Cache and Page cache. The former is for the disk block read and write, the latter for the file inode read and write. These caches can effectively shorten the time for I/O system calls (such as read,write,getdents). Remember that the memory is for use, not to take a look. Unlike windows, no matter how much of your real physical memory, he will have to take the hard disk swap files to read. This is why Windows often prompts for a lack of virtual space. You think, how borin
displayed, and each item can be consulted. Need to observe the value of the ID (idle), generally speaking, he should be close to 100%, indicating that the system is rarely used resourcesLines Fourth and fifth: represents the current use of physical memory and virtual memory (MEM/SWAP).after line sixth: This is where the state is displayed when the command is entered in the top program. The picture below the top is the resource situation used by each process.By default, only the more important P
First, the official: http://dag.wieers.com/home-made/dstat/#downloadOr to the 51CTO download, install the time to note that the Linux system is 5 or 6, with different packages.Second, the installation is very simple, only need a RPM command to complete.Third, the use of methods #dstat--helpIv. Common Command # Dstat-cdlmnpsy--output xin.csvNote:-cdlmnpsy parameter--output output FileFile name of the output CSV format650) this.width=650; "Src=" Http://s5.51cto.com/wyfs02/M01/87/B7/wKioL1ffxyjQNut
the core Httpry program was a set of parsing scripts for mining information out of generated log files. Most of these scripts is written as plugins for a core parsing script and include functionality for extracting search ter MS, searching for specified terms within client flows, and outputting the logs in XML among other things. It is relatively straightforward to write custom plugins for additional parsing tasks.Latest NewsThe latest release adds a number of useful features and tweaks. VLAN t
Sysstat monitors CPU usage, hard disk, and network throughput data. The collection and analysis of these data helps us determine whether the system is running normally, it is an effective assistant to improve system operation efficiency and secure operation of servers.
Sysstat writes the plan log in/etc/cron. d/sysstat. The log is recorded every 10 minutes, and the log process of the day is summarized and cut.
The SAR command displays the CPU running status by default.
SAR Command Options
-B
The simplest and most direct method is to add
-VVParameters to print the request and corresponding information of each client on the console, which is very suitable for development. Another direct method is to use Telnet. For example, if the server is a port 11211 of the local machine, you can use
Telnet local host 11211
And then use
StatsTo view the server status.
In addition, a better choice is to use some specialized monitoring tools. Some e
Monitor weblogic server, Very simple to use, weblogic monitoring, inspection, fault simple tool, monitorweblogic1. I developed a simple small program to monitor weblogic running conditions. You can download it and try it. You don't have to log on to the console to know the running status of the server, including jvm, thread, jdbc, status jms, etc. For a simpler option, select "warning" from the drop-down li
Iptraf: A Practical TCP/UDP Network Monitoring Tool
Iptraf is an ncurses-Based ip lan monitor that generates statistics including TCP information, UDP count, ICMP and OSPF information, Ethernet load information, node status information, IP checksum and error, and so on.
The ncurses-based user interface saves you from the tedious command line switch.
Features
IP traffic monitor is used to display IP traffi
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.