em7 network monitoring tool

Cacti tool is a set of open source web-based network monitoring and system monitoring graphics solutions. Cacti obtains data through the SNMP service and draws graphics using RRDtool, providing very intuitive data and user management capabilities. Cacti requires web, MySQL, and PHP support. Cacti is typically used to m

Ifstat Introduction Ifstat is a monitoring tool for network interfaces. Instance Default usage #ifstat eth0 eth1 KB/s in KB/s out KB/s in KB/s out 0.07 0.20 0.00 0.00 0.07 0.15 0.58 0.00 By default, ifstat does not monitor the loopback interface. The displayed traffic unit is KB. Monitor all

A Swiss army knife in a network tool that can read and write data through TCP and UDP on the network. By combining and redirecting with other tools, you can use it in a variety of ways in your script.It's amazing what you can do with the Netcat command. What Netcat do is create a link between the two computers and return two data streams, and what you can do afte

Article title: Configure SmokePing network monitoring. 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. RHEL-5.3 ========================================================== ================================ [Actual needs] As a website company, we usually require the IT depa

Recently, the company's traffic suddenly increased, after inquiring about the room, a total of two server traffic is relatively large. One is the resources to provide download upload (normal), there is a club, Member login Center traffic is very large (not normal). All install a iftop tool to see the network card, as well as the traffic accounted for by IP. Also looked up some information on the Internet. T

Nicstat is a powerful tool for monitoring network IO 1. View network card information 2. Check the network card interval 2 seconds, 2 times Time column: Represents the response times for the current sample. Lo and eth0: the NIC name. RKB/S: The number of

|grep-i ' txpackets ' |awk ' {print$6, $7} ' |tr-d ' [()] ' ) rx_before=$ (ifconfig eth0|grep-i ' rxpackets ' |awk ' {print$5} ' ) tx_before=$ (ifconfigeth0|grep-i ' txpackets ' |awk ' {print$5} ' ) sleep1 rx_after=$ (ifconfigeth0|grep-i ' rxpackets ' |awk ' {print$5} ' ) tx_after=$ (ifconfigeth0|grep-i ' txpackets ' | awk ' {print$5} ' ) rx=$ (echo scale=3 ; (${Rx_After}-${Rx_Before}) /1024 "|bc) tx=$ (echo "scale=3;" (${tx_after}-${tx_ before}) /1024 "|bc)} #报警函数Alarm () {[[$ (awk-vn1=$1-v

, the string is constantly refreshed, which is the flow of data transfer process and data packets, focusing on the third and fourth columns that represents which ip+ port is connected to which ip+ Port . Ctrl + C exits the program.The tcpdump also has the- C and- w options,-c Specifies the number of catches, and-W saves the crawl results to the specified path [Email protected] ~]# tcpdump-nn-i ens33-c 10-w/home/ask/documentation/ Besides, there are [[email protected] ~]# t

Because of work requirements, I often use a tool in Linux:Nagios Figure-Nagios Use Nagios to monitor the network of servers on the network 1. Implementation Principle Various servers in the network need to be managed and maintained, and the administrator cannot monitor the status of each server in a timely manner. At

Tool 1 SAR The SAR command is included in the sysstat toolkit and provides numerous statistics about the system. Its commands vary in different systems. Here we only talk about its network data monitoring parameters. Sar-N [Dev | EDEV | sock] interval CNT The SAR provided by some systems supports statistics based on network