ubuntu network monitoring tools

Need to monitor Linux server system performance? Try these tools built in or attached to the system below. Most Linux distributions are equipped with a large number of monitoring tools. These tools provide metrics that can be used to obtain relevant information and system activities. You can use these

Article Title: use of commercial server AIX resource monitoring and modulation tools. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Performance Optimization and determining the performance bottleneck in the system are one of the main tasks of the system administrator.

free -- number of remaining swap partitions2028132 k cached -- swap the cache size in the PartitionPID -- pid value of the processUSER-the USER who runs the processPR -- Process PriorityNI -- nice value (negative value indicates high priority, positive value indicates low priority)VIRT-virtual memory used by the ProcessRES -- physical memory used by the ProcessSHR-share the internal sizeS -- Process status% CPU -- percentage of CPU used by processes% MEM -- percentage of memory used by the Proc

detailed write read/write (IO) information of the monitored process. It can also be used with tcpdump to monitor network conditions. If you know that some actions are being performed on port 80, you can use this command to view more port details. The most useful information to list is the disk write column, from which we can see how many K/s each process IO is. For installation, see: $ Sudo apt-get install iotop Screenshot: Apachetop-display real-tim

[O M personnel? Why? 02] 20 built-in monitoring tools for Linux: vmstat and netstat? Communications Administration? Song? Too many ?? Yellow? Argon? [O M personnel? Why? 01] 20 built-in monitoring tools for Linux systems: top-level gossip, Reading Zhao Hao ( amp; cap; _ amp; cap;) O ~... [O M personnel? Why? 02] 20

Want to get a clearer picture of your network? There's no better use than these free tools.Network and system monitoring is a broad category. There are solutions for monitoring servers, network devices, applications that work properly, and for tracking these systems and equipment performance and providing trending perf

to limited time, in the latter several blog, will detail the real-time priority process, static priority process.Introduced a half-day, process and thread, mainly to introduce two system monitoring tools and a process viewing tool.1, real-time system monitoring Tool Dstat,1DSTAT[-AFV] [options:] [Delay [Count]]-A: Display cdngy-C: Displays statistics of CPU perf

: Number of bytes sent per secondRXCMP/S: Compressed packets received per secondTXCMP/S: Compressed packets sent per secondRXMCST/S: Multicast packets received per secondb) Sar-n Edev 2 10Linux 2.6.18-53.el5pae (Localhost.localdomain) 03/29/200901:42:18 AM IFACE rxerr/s txerr/s coll/s rxdrop/s txdrop/s txcarr/s rxfram/s rxfifo/s txfifo/s01:42:20 AM Lo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0001:42:20 AM eth1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0001:42:20 AM sit0 0.00 0.00 0.00 0.00 0.00

Linux operations-aware performance monitoring and debugging tools1 NagiosNagios is an open source monitoring solution, and I think he can monitor everything, and can look at my previous article: NAGIOS2 PS #用来查看程序的运行情况Ps-ef |grep svr.py|grep-v grep |awk ' {print $} ' #查看svr. PY process PID Number145543 free# View the system's physical (RAM) and swapped memory information [emailprotected]:~> free-mto #MB值显示

Network monitoring tools are an important feature for businesses of any size. The objectives of network monitoring may vary widely. For example, the goal of monitoring activities can be to ensure long-term

The following is the CentOS network management and network configurationWe set the network properties for the NIC in two ways, manually configured and automatically configured. The automatic configuration is obtained from the DHCP server on the host network and has at least one DHCP server. Manual configuration is avai

Linux system monitoring and diagnostic tools-lsof usage Overview 1. lsof introduction lsof is a very practical system-level monitoring and diagnostic tool in linux. It means List Open Files. It is easy to remember that it is a combination of "ls + ~It can be used to list the File Information opened by various processes. Remember: "Everything is a file" in linux,

the same time. and cannot be used when the load is largeSPAN, a matrix switch is used to ensure that the monitoring tool is running properly. And more network sniffer tools can be connected to the above analysis. The matrix switch is moreTAPMore is the use of the built-in filtering feature, which allows OPS to select specific data flows over the specified tool.

easy to use and supports a very large number of files that can be overwritten with the way we can see the use of files. swapon: Displays the swap device usage, if you start the swap device. D, network I/O related Common tools:netstat,tcpdump,Route,iptarf,netperf, Nicstat, Ping/traceroute netstat: is a very useful tool for monitoring TCP/IP network, it can dis