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How to use SNMP to monitor Linux server?

Just install and configure SNMP.

The specific opinions are as follows:

First, you need to install SNMP. Please refer to the SNMP installation instructions for LINUX system. Generally speaking, SNMP services have been automatically installed in Linux. The following command can detect whether the SNMP service is installed and the installed file package.

Then you need to configure SNMP. You need to modify the /etc/snmp/snmpd.conf file as follows, modify the default community string (SNMP read password in sum), find the com2seconoconfiguuserdefaultpublic code, and modify public into the string you just know. Then remove the following # sign, # viewmib2included.iso.org.dod.internet.mgmt.mib-2fc. Then change the AccessNotConfigGroup ""any noauthexactsystemviewnone "to: AccessNotConfigGroup" "any noauthexactMIB 2None or: AccessNotConfigGroup" "any noauthexactallNone.

Then generally start and stop SNMP: servicesnmpppdstart | stop | restart command. Or: #/etc/rc.d/init.d/snmpdrestart.

Finally, you can set up a firewall. If Linux starts the firewall, please open UDP port 16 1. Ensure that the iptables firewall of Linux has opened the udp 16 1 port to access the SUM monitoring server. You can modify iptables rules by editing the /etc/sysconfig/iptables file.

How to monitor tomcat under linux?

Hello, the command to view the tomcat process under linux is: psaux|greptomcat Name: ps Permission: All users Usage: ps Description: Display the dynamic parameters of the instantaneous process: ps has many parameters. Here, only a few commonly used parameters are listed and their meanings are briefly introduced-A lists all processes-W displays more information by widening-Au displays more detailed information-AUX displays all the travel pipeline symbols "|" containing other users, and the standard output pipeline of one command can be changed into the standard input pipeline of another command. Grep command is a powerful text search tool, which can use regular expressions to search for text and print out matching lines.

How to write a graphical monitoring system in C language on linux system?

Under Linux, there are codeblocks and eclipse-cdt software for compiling C language graphical interface, and ddd, Kdbg and AffinicGUIDebugger are debuggers for graphical interface. But these graphical interface softwares are just a shell, and you still need to call the functions of gcc/gdb, which means that if you want to use these softwares, you need to install gcc and gdb in advance on your Linux system.