ubuntu、Centos、win2003开启snmp服务
系统介绍：
root@ubuntu:~# cat /etc/issue
Ubuntu 12.04.1 LTS \n \l
安装：
apt-get install snmpd
配置：
修改/etc/snmp/snmpd.conf文件;
屏蔽第15行
#agentAddress udp:127.0.0.1:161
打开第17行
agentAddress udp:161,udp6:[::1]:161
最下面添加如下信息：
com2sec notConfigUser default public
group notConfigGroup v1 notConfigUser
group notConfigGroup v2c notConfigUser
view systemview included .1
access notConfigGroup "" any noauth exact systemview none none
syslocation 7 floor room 192.168.1.191
syscontact Root xzy
pass .1.3.6.1.4.1.4413.4.1 /usr/bin/ucd5820stat
启动snmpd服务
service snmpd restart
安全：
为了更好做到安全策略,我们现在配置snmp只允许某个ip连接。
vim /etc/hosts.allow文件，添加如下信息：
snmpd:xx.xx.xx.xx:allow
snmpd:all:deny
系统介绍：
[root@localhost~]# cat /etc/issue
CentOS release 6.5 (Final)
Kernel \r on an \m
安装：
yum install -y net-snmp
yum install -y net-snmp-libs
yum install -y net-snmp-perl
yum install -y net-snmp-utils
启动：
service snmpd restart
修改配置文件：
cd /etc/snmp
mv snmpd.conf snmpd.conf.sav
vim snmpd.conf
###############################################################################
#
# EXAMPLE.conf:
# An example configuration file for configuring the Net-SNMP agent ('snmpd')
# See the 'snmpd.conf(5)' man page for details
#
# Some entries are deliberately commented out, and will need to be explicitly activated
#
###############################################################################
#
# AGENT BEHAVIOUR
#
# Listen for connections from the local system only
#agentAddress udp:127.0.0.1:161
# Listen for connections on all interfaces (both IPv4 *and* IPv6)
agentAddress udp:161,udp6:[::1]:161
###############################################################################
#
# SNMPv3 AUTHENTICATION
#
# Note that these particular settings don't actually belong here.
# They should be copied to the file /var/lib/snmp/snmpd.conf
# and the passwords changed, before being uncommented in that file *only*.
# Then restart the agent
# createUser authOnlyUser MD5 "remember to change this password"
# createUser authPrivUser SHA "remember to change this one too" DES
# createUser internalUser MD5 "this is only ever used internally, but still change the password"
# If you also change the usernames (which might be sensible),
# then remember to update the other occurances in this example config file to match.
###############################################################################
#
# ACCESS CONTROL
#
# system + hrSystem groups only
view systemonly included .1.3.6.1.2.1.1
view systemonly included .1.3.6.1.2.1.25.1
# Full access from the local host
#rocommunity public localhost
# Default access to basic system info
#rocommunity public default -V systemonly
# Full access from an example network
# Adjust this network address to match your local
# settings, change the community string,
# and check the 'agentAddress' setting above
#rocommunity secret 10.0.0.0/16
# Full read-only access for SNMPv3
rouser authOnlyUser
# Full write access for encrypted requests
# Remember to activate the 'createUser' lines above
#rwuser authPrivUser priv
# It's no longer typically necessary to use the full 'com2sec/group/access' configuration
# r[ou]user and r[ow]community, together with suitable views, should cover most requirements
###############################################################################
#
# SYSTEM INFORMATION
#
# Note that setting these values here, results in the corresponding MIB objects being 'read-only'
# See snmpd.conf(5) for more details
sysLocation Sitting on the Dock of the Bay
sysContact Me <[email protected]>
# Application + End-to-End layers
sysServices 72
#
# Process Monitoring
#
# At least one 'mountd' process
proc mountd
# No more than 4 'ntalkd' processes - 0 is OK
proc ntalkd 4
# At least one 'sendmail' process, but no more than 10
proc sendmail 10 1
# Walk the UCD-SNMP-MIB::prTable to see the resulting output
# Note that this table will be empty if there are no "proc" entries in the snmpd.conf file
#
# Disk Monitoring
#
# 10MBs required on root disk, 5% free on /var, 10% free on all other disks
disk / 10000
disk /var 5%
includeAllDisks 10%
# Walk the UCD-SNMP-MIB::dskTable to see the resulting output
# Note that this table will be empty if there are no "disk" entries in the snmpd.conf file
#
# System Load
#
# Unacceptable 1-, 5-, and 15-minute load averages
load 12 10 5
# Walk the UCD-SNMP-MIB::laTable to see the resulting output
# Note that this table *will* be populated, even without a "load" entry in the snmpd.conf file
###############################################################################
#
# ACTIVE MONITORING
#
# send SNMPv1 traps
trapsink localhost public
# send SNMPv2c traps
#trap2sink localhost public
# send SNMPv2c INFORMs
#informsink localhost public
# Note that you typically only want *one* of these three lines
# Uncommenting two (or all three) will result in multiple copies of each notification.
#
# Event MIB - automatically generate alerts
#
# Remember to activate the 'createUser' lines above
iquerySecName internalUser
rouser internalUser
# generate traps on UCD error conditions
defaultMonitors yes
# generate traps on linkUp/Down
linkUpDownNotifications yes
###############################################################################
#
# EXTENDING THE AGENT
#
#
# Arbitrary extension commands
#
extend test1 /bin/echo Hello, world!
extend-sh test2 echo Hello, world! ; echo Hi there ; exit 35
#extend-sh test3 /bin/sh /tmp/shtest
# Note that this last entry requires the script '/tmp/shtest' to be created first,
# containing the same three shell commands, before the line is uncommented
# Walk the NET-SNMP-EXTEND-MIB tables (nsExtendConfigTable, nsExtendOutput1Table
# and nsExtendOutput2Table) to see the resulting output
# Note that the "extend" directive supercedes the previous "exec" and "sh" directives
# However, walking the UCD-SNMP-MIB::extTable should still returns the same output,
# as well as the fuller results in the above tables.
#
# "Pass-through" MIB extension command
#
#pass .1.3.6.1.4.1.8072.2.255 /bin/sh PREFIX/local/passtest
#pass .1.3.6.1.4.1.8072.2.255 /usr/bin/perl PREFIX/local/passtest.pl
# Note that this requires one of the two 'passtest' scripts to be installed first,
# before the appropriate line is uncommented.
# These scripts can be found in the 'local' directory of the source distribution,
# and are not installed automatically.
# Walk the NET-SNMP-PASS-MIB::netSnmpPassExamples subtree to see the resulting output
#
# AgentX Sub-agents
#
# Run as an AgentX master agent
master agentx
# Listen for network connections (from localhost)
# rather than the default named socket /var/agentx/master
#agentXSocket tcp:localhost:705
com2sec notConfigUser default XXX
group notConfigGroup v1 notConfigUser
group notConfigGroup v2c notConfigUser
view systemview included .1
access notConfigGroup "" any noauth exact systemview none none
syslocation 7 floor room XXX
syscontact Root xzy
pass .1.3.6.1.4.1.4413.4.1 /usr/bin/ucd5820stat
安全：
修改服务器iptables防火墙：
vim /etc/sysconfig/iptables
-A INPUT -s xxxx/xx -p udp -m udp --dport 161 -j ACCEPT
修改snmp的允许连接的ip：
vim /etc/hosts.allow
snmpd:xx.xx.xx.xx:allow
snmpd:all:deny
系统介绍：
安装：
开始-->控制面板-->添加或删除程序
添加/删除Windows组建(A)-->管理和监视工具
简单网络管理协议(SNMP) 打勾-->确定
中途可能会提示放入光盘，在光驱内放入win2003光盘即可
配置：
我点电脑-->右键-->管理
服务和应用程序-->服务
找到右边的SNMP Service服务双击选择属性-->安全分别添加团体名和信任主机ip
安装配置完成
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