freeware network monitoring tools

Glances is a Linux, BSD open Source command-line system monitoring tool, which uses the Python language development, uses the Psutil library to collect the system data, can monitor the CPU, the load, the memory, the disk I/O, the network traffic, the file system, the system temperature and so on information. Compared to top/vmstat/iostat and other old monitoring

Nethogs IntroductionNethogs is an open-source, free, terminal network traffic monitoring tool that monitors the network traffic of Linux processes or applications. Nethogs can only monitor the network bandwidth consumption of the process in real time. Nethogs supports IPV4 and IPV6 protocols, supports local

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.

Today introduced a Linux under the monitoring of real-time broadband use of software iftop,iftop can view the flow of dynamic, to help you solve, find the network slow problem.Of course, check the network card traffic tools and Iptraf, nethogs and so on, the main recommended today iftop!Software Installation: cd/byrd/

I/O wait for Linux system monitoring and diagnosis tools Directory 1. Problem:2. troubleshooting:2.1 vmstat2.2 iostat2.3 iotop3. The last words: a different path1. Problem: Recently, log real-time synchronization was performed. Before the release, the online log stress test was performed. The message queue and the client and the local machine are normal, but I did not expect that after the second log is upl

the file for changesDetecting binary and System tool files used by rootkitsDetect the signature of a Trojan horse programDetects if the file attributes of a common program are abnormalTesting system-related testsDetecting hidden filesDetection of suspicious core modules lkmDetecting the listening port that the system has startedRkhunter Download: wget https://sourceforge.net/projects/rkhunter/files/latest/download--no-check-certificateInstallationTar XF rkhunter-1.4.2.tar.gzCD rkhunter-1.4.2./i

[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

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,

Unix system performance monitoring tools-SAR System Environment: Operating System: AIX 5.3.9 Oracle: Oracle 10gR2 SAR can be used to monitor Unix system performance and help us analyze performance bottlenecks. The sar tool is used in the form of "sar [Option] intervar [count]", where interval is the statistical information sampling time, and count is the number of samples. RH442 strategy SAR Understanding o

A fully running Linux system consists of many subsystems (introduction, Cpu,memory,io,network, ...). ), monitoring and evaluating these subsystems is part of the performance monitoring. We often need macroscopic view of the whole system state, also need microscopic look at the operation of each subsystem. Fortunately, we don't have to reinvent the wheel to monito

During O M, people often experience server performance problems, such as I/O, CPU, memory, and network bottlenecks. So how can system O M be done? The following tools are helpful for refreshing your mind ~ (@ ^ _ ^ @)~ (1) Top Here, Rocky wants to clarify one point, and believes that the best practice of top is: "Find the process that consumes the most CPU resources" After finding it, press [p] and forc

Testing tools are the means to achieve automated testing. The rational use of testing tools can not only improve the network diagnostic capability, but also facilitate network management. Generally, broadly speaking, network testing tool