snmp kuri-232

linux centos 
 1002  yum list > /tmp/yumlist
 1004  cat /tmp/yumlist | grep snmp
 1005  yum install net-snmp net-snmp-utils
 1006  chkconfig snmpd on
 1008  cd /etc/snmp/
 1009  ls -ltr
 1010  cp -pr snmd.conf snmpd.conf.orig
 1011  cp -pr snmptrapd.conf snmptrapd.conf.orig
 1012  cat snmpd.conf | grep "public" | more
 1014  cat snmpd.conf | grep "^[^#].*public" | more
 1017  sed -i 's/\(^[^#].*\)public\(.*\)/\1hirasawa\2/' /etc/snmp/snmpd.conf
 1018  diff /etc/snmp/snmpd.conf.orig /etc/snmp/snmpd.conf 
 1019  /etc/init.d/snmpd start
 1020  pgrep snmpd
 1021  service snmpd
  • snmpwalkコマンド

OIDまたはMIBシンボルを入力すると、そのOIDツリー以下を展開して表示

[root@localhost ~]# snmpwalk -On -c hirasawa -v 1 localhost .1.3 
.1.3.6.1.2.1.1.1.0 = STRING: Linux localhost.localdomain 2.6.32-279.14.1.el6.i686 #1 SMP Tue Nov 6 21:05:14 UTC 2012 i686
.1.3.6.1.2.1.1.2.0 = OID: .1.3.6.1.4.1.8072.3.2.10
.1.3.6.1.2.1.1.3.0 = Timeticks: (95036) 0:15:50.36
.1.3.6.1.2.1.1.4.0 = STRING: Root <root@localhost> (configure /etc/snmp/snmp.local.conf)
.1.3.6.1.2.1.1.5.0 = STRING: localhost.localdomain
.1.3.6.1.2.1.1.6.0 = STRING: Unknown (edit /etc/snmp/snmpd.conf)
.1.3.6.1.2.1.1.8.0 = Timeticks: (31) 0:00:00.31
.1.3.6.1.2.1.1.9.1.2.1 = OID: .1.3.6.1.6.3.11.2.3.1.1
.1.3.6.1.2.1.1.9.1.2.2 = OID: .1.3.6.1.6.3.15.2.1.1
.1.3.6.1.2.1.1.9.1.2.3 = OID: .1.3.6.1.6.3.10.3.1.1
.1.3.6.1.2.1.1.9.1.2.4 = OID: .1.3.6.1.6.3.1
.1.3.6.1.2.1.1.9.1.2.5 = OID: .1.3.6.1.2.1.49
.1.3.6.1.2.1.1.9.1.2.6 = OID: .1.3.6.1.2.1.4
.1.3.6.1.2.1.1.9.1.2.7 = OID: .1.3.6.1.2.1.50
.1.3.6.1.2.1.1.9.1.2.8 = OID: .1.3.6.1.6.3.16.2.2.1
.1.3.6.1.2.1.1.9.1.3.1 = STRING: The MIB for Message Processing and Dispatching.
.1.3.6.1.2.1.1.9.1.3.2 = STRING: The MIB for Message Processing and Dispatching.
.1.3.6.1.2.1.1.9.1.3.3 = STRING: The SNMP Management Architecture MIB.
.1.3.6.1.2.1.1.9.1.3.4 = STRING: The MIB module for SNMPv2 entities
.1.3.6.1.2.1.1.9.1.3.5 = STRING: The MIB module for managing TCP implementations
.1.3.6.1.2.1.1.9.1.3.6 = STRING: The MIB module for managing IP and ICMP implementations
.1.3.6.1.2.1.1.9.1.3.7 = STRING: The MIB module for managing UDP implementations
.1.3.6.1.2.1.1.9.1.3.8 = STRING: View-based Access Control Model for SNMP.
.1.3.6.1.2.1.1.9.1.4.1 = Timeticks: (30) 0:00:00.30
.1.3.6.1.2.1.1.9.1.4.2 = Timeticks: (30) 0:00:00.30
.1.3.6.1.2.1.1.9.1.4.3 = Timeticks: (30) 0:00:00.30
.1.3.6.1.2.1.1.9.1.4.4 = Timeticks: (30) 0:00:00.30
.1.3.6.1.2.1.1.9.1.4.5 = Timeticks: (31) 0:00:00.31
.1.3.6.1.2.1.1.9.1.4.6 = Timeticks: (31) 0:00:00.31
.1.3.6.1.2.1.1.9.1.4.7 = Timeticks: (31) 0:00:00.31
.1.3.6.1.2.1.1.9.1.4.8 = Timeticks: (31) 0:00:00.31
.1.3.6.1.2.1.25.1.1.0 = Timeticks: (98711) 0:16:27.11
End of MIB
[root@localhost ~]#
  • snmpgetコマンド

OIDまたはMIBシンボルを入力すると、そのOIDツリーに相当するオブジェクトの値を表示

OIDをもつオブジェクトが（配列ではなく）単一値をとるときには、後ろに「.0」を付けてアクセスする決まり

[root@localhost ~]# snmpget -On -c hirasawa -v 1 localhost .1.3.6.1.2.1.1.4.0
.1.3.6.1.2.1.1.4.0 = STRING: Root <root@localhost>
 (configure /etc/snmp/snmp.local.conf)
  • snmptranslate
[root@localhost ~]# snmptranslate -Td .1.3.6
SNMPv2-SMI::dod
dod OBJECT-TYPE
  -- FROM	SNMPv2-SMI, RFC1155-SMI
::= { iso(1) org(3) 6 }
[root@localhost ~]# snmptranslate -Td .1.3.6.1.2.1
SNMPv2-SMI::mib-2
mib-2 OBJECT-TYPE
  -- FROM	SNMPv2-SMI, RFC1213-MIB
::= { iso(1) org(3) dod(6) internet(1) mgmt(2) 1 }
[root@localhost ~]# snmptranslate -Td .1.3.6.1.2.1.1
SNMPv2-MIB::system
system OBJECT-TYPE
  -- FROM	SNMPv2-MIB, RFC1213-MIB
::= { iso(1) org(3) dod(6) internet(1) mgmt(2) mib-2(1) 1 }
[root@localhost ~]# snmptranslate -Td .1.3.6.1.2.1.1.4
SNMPv2-MIB::sysContact
sysContact OBJECT-TYPE
  -- FROM	SNMPv2-MIB, RFC1213-MIB
  -- TEXTUAL CONVENTION DisplayString
  SYNTAX	OCTET STRING (0..255) 
  DISPLAY-HINT	"255a"
  MAX-ACCESS	read-write
  STATUS	current
  DESCRIPTION	"The textual identification of the contact person for
            this managed node, together with information on how
            to contact this person.  If no contact information is
            known, the value is the zero-length string."
::= { iso(1) org(3) dod(6) internet(1) mgmt(2) mib-2(1) system(1) 4 }
[root@localhost ~]# snmptranslate -Td .1.3.6.1.2.1.1.4.1
SNMPv2-MIB::sysContact.1
sysContact OBJECT-TYPE
  -- FROM	SNMPv2-MIB, RFC1213-MIB
  -- TEXTUAL CONVENTION DisplayString
  SYNTAX	OCTET STRING (0..255) 
  DISPLAY-HINT	"255a"
  MAX-ACCESS	read-write
  STATUS	current
  DESCRIPTION	"The textual identification of the contact person for
            this managed node, together with information on how
            to contact this person.  If no contact information is
            known, the value is the zero-length string."
::= { iso(1) org(3) dod(6) internet(1) mgmt(2) mib-2(1) system(1) sysContact(4) 1 }
[root@localhost ~]#