SNMP installation and use under Linux

Installing SNMP

Confirm that the SNMP agent is installed

Rpm-q NET-SNMP

If not installed, install SNMP

Yum Install Net-snmp

Set up auto-run SNMP on boot

/sbin/chkconfig snmpd on configuring SNMP

Modifying a configuration file

Back up the original configuration file, edit the/etc/snmp/snmpd.conf, simple configuration as follows

# First, map the community name ' public ' into a ' security name '

# Sec.name Source Community

Com2sec notconfiguser Default Public

####

# Second, map the security name into a group name:

# GroupName Securitymodel Securityname

Group Notconfiggroup v1 Notconfiguser

Group Notconfiggroup v2c Notconfiguser

####

# Third, create a view for us to let the group has rights to:

# make at least SNMPWALK-V 1 localhost-c public system fast again.

# Name INCL/EXCL subtree mask (optional)

View SystemView included. 1.3.6.1.2.1.1

View SystemView included. 1.3.6.1.2.1.25.1.1

####

# Finally, grant the group Read-only access to the SystemView view.

# Group Context Sec.model sec.level prefix read Write Notif

Access Notconfiggroup "" Any noauth exact systemview none None

Start SNMP

/ETC/INIT.D/SNMPD start

Restart the SNMP service if it is started

/ETC/INIT.D/SNMPD restart

Testing SNMP

To see if the port is open

Netstat-ln | grep 161

Installing the SNMP test tool

Yum Install Net-snmp-utils

Native Test SNMP data (modify monit for configured community name)

Snmpwalk-v 2c-c public localhost system

Snmpwalk-v3-u username-l auth-a md5-a password localhost

Create SNMP (v3) users

Net-snmp-config--create-snmpv3-user-ro-a MD5 Lyceemsnmp lyceem.com

Remotely test SNMP data (modify IP for Server ip,snmpwalk command requires installation of NET-SNMP)

Snmpwalk-v 2c-c Public IP system

So it is often handled

Error exclusion if the local test SNMP has data, the remote test SNMP is numerous because the server firewall prohibits the external Access server UDP 161 port:

Modify/etc/sysconfig/iptables (or:/etc/sysconfig/iptables-config) to add the following rule:

-A rh-firewall-1-input-p udp-m state cstate new-m UDP cdport 161-j ACCEPT

Restart Iptables

/etc/init.d/iptables restart

This article is from the "Lonely (Technology Group: 1991706)" blog, please be sure to keep this source http://304076020.blog.51cto.com/7503470/1545302

SNMP installation and use under Linux