ubuntu network monitoring tools

Introduction to Linux monitoring tools a brief introduction to top tools for viewing process activity status and some system conditions such as vmstat for viewing system status, hardware and system information iostat for viewing CPU load and hard disk status sar integrated tools, view system status mpstat view multi-pr

NETXMS 2.0.6 released, updated as follows:-Fixed random server crash If ODBC database driver is used-Fixed incorrect reading of long text fields by MS SQL database driver-Fixed issues: #1052, #1063For more information, see: Changelog: http://www.netxms.org/download/NETXMS is a new, fast-growing system monitoring tool that is released under the GPL2 license. It can be used to monitor the entire IT infrastructure (Tengyun technology ty300.com), from SNM

"Turn" original source: ? tecmint-kuldeep Sharma??? Translation Source: Linux story- cold weather ??? Welcome to share the original to Bó Lè headlines in terms of monitoring system resources, system performance, and usage activity, Sysstat is indeed a handy tool. Sysstat packages are used more or less in our everyday basic tools . It also provides a tool that can be scheduled to run with Cron to colle

interrupt related rate data-L: Displays statistics related to load average (average load)-M: Show memory-related statistics-N: Shows the rate of data sent to and from the network-P: Show process-related statisticsRate of-R:I/O requests-S: Show data about swap-Y: Displays system-related data, including interrupts and process transitions2. Other options--TOP-CPU: Show CPU-intensive processes--top-bio: Displays the process of the most consumed block dev

monitoring, the report output is 3 seconds apart, and the report outputs 10 results, you can run the following command:There are many parameters available in the Dstat command, which you can view with the Man Dstat command, and most of the commonly used parameters are:Versatile tool for generating system resource Statisticsdstat options:-C,--cpu enable CPU stats-c 0,3 , total include cpu0, CPU3 and total-d,--disk enable disk stats-d Total,hda includ

file system Disk Adapter Network I/O speed, transmission, and read/write ratios Page space and page speed CPU and AIX specification The process that consumes the most resources IBM HTTP Web Cache User-defined Disk groups Computer details and resources asynchronous I/O, only for AIX Workload Manager (WLM), available only for AIX IBM totalstorage®enterprise Storage Server® (ESS) disk, only available for AIX

[O M engineer _ 02] 20 built-in Linux system monitoring tools: vmstat and netstat. This article is the second article and the first article of O M engineer on the road. See: [O M tips _ 01] 20 built-in monitoring tools for Linux systems: top gossip, reading and writing O ~ (2) If vmstat is written in front, here Roc

1. Daemon Thread The Java threading mechanism is divided into two types, the user thread and the daemon thread (Daemon thread). User threads: Runs in the foreground, performing specific tasks. For example: The main thread of the program, the child thread that connects the network. Daemon Thread: Running in the background, serving other threads. Example: Garbage collector thread Thread similarities and differences: Once all the user threads are running

1) Tool DescriptionDstat is a tool for replacing Vmstat,iostat Netstat,nfsstat and Ifstat commands, and is an all-purpose system Information statistic tool. Compared with Sysstat, Dstat has a color interface, which is easy to observe when manually observing performance conditions; and Dstat support instant refresh, such as input Dstat 3, which is collected every three seconds, but the latest data will be refreshed every second. As with Sysstat, Dstat can also collect the specified performance re

/Jims/zope/log/Z2.log is executed every three seconds. 8. Sysctl Use sysctl-a to display all running kernel parameters, and use sysctl-w fs. file-max = 10240 command can be modified fs. file-max Kernel Parameter Value, and make the parameter take effect immediately. However, after the system is restarted, the parameter settings will expire, because the command line can only modify the running kernel parameters. If you want to fix the parameters, you can write the kernel parameters to the/etc/sys

, and the following shows the current state of each thread and is a dynamic change. The first line shows the host name, and so far MySQL The Run time ( in days hour:minutes:seconds format ) . the second to third line shows the Qps: Requests per second, Slow: number of slow queries, se/in/up/de (%): Read and write ratio. the fourth line of Key Efficiency is that Myisam Key-Value buffer usage ratio ( cache hit Ratio ) , Bps: Current network traffic. The