linux系统安装snmp服务以及配置

admin

首先需要安装：

[root@controller ~]#dnf install -y net-snmp-utils net-snmp

Last metadata expiration check: 2:38:19 ago on Sun 12 Jun 2022 02:32:25 PM CST.
: n8 g8 P; x) v5 [Dependencies resolved.
===================================================================================================================================================================
; M8 C$ T7 O" w: w Package                               Architecture                        Version                                    Repository                              Size
===================================================================================================================================================================
4 `5 m# \& J* v1 }Installing:
: X. G8 _8 b' z; H# {4 H net-snmp                              x86_64                              1:5.8-25.el8                               appstream                              355 k

Transaction Summary
===================================================================================================================================================================
Install  1 Package

Total download size: 355 k
* ~+ k& {& ?' i# R5 R6 W( ^Installed size: 872 k
Downloading Packages:
net-snmp-5.8-25.el8.x86_64.rpm                                                                                                     1.4 MB/s | 355 kB     00:00   
-------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                                              561 kB/s | 355 kB     00:00     
Running transaction check
/ q% ^# q0 n) T7 M, ?& PTransaction check succeeded.
: q; h( k# [- @, E! dRunning transaction test
5 E% `* h9 {! f2 q# C$ zTransaction test succeeded.
Running transaction
  Preparing        :                                                                                                                                           1/1
  Installing       : net-snmp-1:5.8-25.el8.x86_64                                                                                                              1/1
  Running scriptlet: net-snmp-1:5.8-25.el8.x86_64                                                                                                              1/1
* \9 g2 g; ^- m5 m# t+ ~1 e  Verifying        : net-snmp-1:5.8-25.el8.x86_64                                                                                                              1/1

Installed:
* [! X: T8 k% U7 T6 D7 w  net-snmp-1:5.8-25.el8.x86_64                                                                                                                                    

Complete!

安装完成之后，启动服务：

[root@controller ~]# systemctl enable snmpd.service
( g  K! I! t2 `" ^& xCreated symlink /etc/systemd/system/multi-user.target.wants/snmpd.service → /usr/lib/systemd/system/snmpd.service.

[root@controller ~]#systemctl start snmpd.service

[root@controller ~]# systemctl status  snmpd.service
7 i6 u+ {4 r! m$ R0 c0 s● snmpd.service - Simple Network Management Protocol (SNMP) Daemon.
   Loaded: loaded (/usr/lib/systemd/system/snmpd.service; disabled; vendor preset: disabled)
+ k+ P3 c: c3 i. _* f, ~! S   Active: active (running) since Sun 2022-06-12 17:31:52 CST; 5s ago
Main PID: 114711 (snmpd)
* z& D7 E; E  ?9 M    Tasks: 1 (limit: 100963)
4 h4 F4 a. [  _   Memory: 4.8M
   CGroup: /system.slice/snmpd.service
( Y' ?3 `# s( [  h4 r& l           └─114711 /usr/sbin/snmpd -LS0-6d -f

Jun 12 17:31:51 controller systemd[1]: Starting Simple Network Management Protocol (SNMP) Daemon....
! ~$ K% E( f3 F- c: tJun 12 17:31:52 controller snmpd[114711]: NET-SNMP version 5.8
! _4 |3 ], x8 Z$ KJun 12 17:31:52 controller systemd[1]: Started Simple Network Management Protocol (SNMP) Daemon..

7 |$ N+ W7 t7 e* k4 y4 _1 D3 S

(1)使用snmpwalk命令，查看本机localhost的主机名：
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[root@controller ~]#snmpwalk -v 2c -c public localhost sysName.0
( m; m6 D- U% |! i" U6 ~+ ASNMPv2-MIB::sysName.0 = STRING: controller

[root@controller ~]# snmpwalk -v 2c -c public localhost
4 d9 f2 b' R! Y% e% \& ]SNMPv2-MIB::sysDescr.0 = STRING: Linux controller 4.18.0-383.el8.x86_64 #1 SMP Wed Apr 20 15:38:08 UTC 2022 x86_64
3 l- v& s, I% C* ]; X$ m. C  pSNMPv2-MIB::sysObjectID.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (49655) 0:08:16.55
SNMPv2-MIB::sysContact.0 = STRING: Root <root@localhost> (configure /etc/snmp/snmp.local.conf)
SNMPv2-MIB::sysName.0 = STRING: controller
SNMPv2-MIB::sysLocation.0 = STRING: Unknown (edit /etc/snmp/snmpd.conf)
" t' [% {+ m6 X3 R6 |# a8 ?2 \SNMPv2-MIB::sysORLastChange.0 = Timeticks: (0) 0:00:00.00
SNMPv2-MIB::sysORID.1 = OID: SNMP-FRAMEWORK-MIB::snmpFrameworkMIBCompliance
4 v2 p5 X9 j$ b. U1 D: `  U* LSNMPv2-MIB::sysORID.2 = OID: SNMP-MPD-MIB::snmpMPDCompliance
0 B0 m+ u6 R" {3 v  sSNMPv2-MIB::sysORID.3 = OID: SNMP-USER-BASED-SM-MIB::usmMIBCompliance
SNMPv2-MIB::sysORID.4 = OID: SNMPv2-MIB::snmpMIB
" X. u8 R. R& ?# P) I9 E  ?# {; t8 SSNMPv2-MIB::sysORID.5 = OID: SNMP-VIEW-BASED-ACM-MIB::vacmBasicGroup
SNMPv2-MIB::sysORID.6 = OID: TCP-MIB::tcpMIB
0 I8 R1 c. g3 Z* WSNMPv2-MIB::sysORID.7 = OID: IP-MIB::ip
SNMPv2-MIB::sysORID.8 = OID: UDP-MIB::udpMIB
2 {2 Z' x" Q9 C! Y* GSNMPv2-MIB::sysORID.9 = OID: SNMP-NOTIFICATION-MIB::snmpNotifyFullCompliance
; ~) a7 }, b& I) m: MSNMPv2-MIB::sysORID.10 = OID: NOTIFICATION-LOG-MIB::notificationLogMIB
SNMPv2-MIB::sysORDescr.1 = STRING: The SNMP Management Architecture MIB.
SNMPv2-MIB::sysORDescr.2 = STRING: The MIB for Message Processing and Dispatching.
1 ~: V. X1 y  H, RSNMPv2-MIB::sysORDescr.3 = STRING: The management information definitions for the SNMP User-based Security Model.
1 U  J% h2 ?+ C# L2 J" d2 s9 o0 TSNMPv2-MIB::sysORDescr.4 = STRING: The MIB module for SNMPv2 entities
1 H( g% p* m+ R) YSNMPv2-MIB::sysORDescr.5 = STRING: View-based Access Control Model for SNMP.
SNMPv2-MIB::sysORDescr.6 = STRING: The MIB module for managing TCP implementations
SNMPv2-MIB::sysORDescr.7 = STRING: The MIB module for managing IP and ICMP implementations
SNMPv2-MIB::sysORDescr.8 = STRING: The MIB module for managing UDP implementations
SNMPv2-MIB::sysORDescr.9 = STRING: The MIB modules for managing SNMP Notification, plus filtering.
0 x! [2 l- i! M6 [. ~) X/ O0 u' xSNMPv2-MIB::sysORDescr.10 = STRING: The MIB module for logging SNMP Notifications.
SNMPv2-MIB::sysORUpTime.1 = Timeticks: (0) 0:00:00.00
; c4 k$ Q+ x# a* V. [  fSNMPv2-MIB::sysORUpTime.2 = Timeticks: (0) 0:00:00.00
) L5 S; S: m+ P8 Z( J" @SNMPv2-MIB::sysORUpTime.3 = Timeticks: (0) 0:00:00.00
" q. l0 K2 x4 x8 J  BSNMPv2-MIB::sysORUpTime.4 = Timeticks: (0) 0:00:00.00
SNMPv2-MIB::sysORUpTime.5 = Timeticks: (0) 0:00:00.00
; E$ ~2 r! I. nSNMPv2-MIB::sysORUpTime.6 = Timeticks: (0) 0:00:00.00
SNMPv2-MIB::sysORUpTime.7 = Timeticks: (0) 0:00:00.00
) ^6 ]9 x; k$ q4 u$ p$ }* h; |SNMPv2-MIB::sysORUpTime.8 = Timeticks: (0) 0:00:00.00
0 Z+ r! q8 u& V8 `& USNMPv2-MIB::sysORUpTime.9 = Timeticks: (0) 0:00:00.00
5 R9 E/ p6 {9 {6 w7 n% eSNMPv2-MIB::sysORUpTime.10 = Timeticks: (0) 0:00:00.00
HOST-RESOURCES-MIB::hrSystemUptime.0 = Timeticks: (2687370) 7:27:53.70
HOST-RESOURCES-MIB::hrSystemUptime.0 = No more variables left in this MIB View (It is past the end of the MIB tree)

(2)使用snmptranslate命令，检查snmp工具是否可以使用：
: d" J. H$ w' V, T

[root@controller ~]# snmptranslate -To |head
( T4 J1 C  g, i) s: N9 p.1.3
.1.3.6
.1.3.6.1
.1.3.6.1.1
.1.3.6.1.2
: r' O! G3 U7 W# S' O& I.1.3.6.1.2.1
.1.3.6.1.2.1.1
) ^4 Z. L5 I7 O# v0 F.1.3.6.1.2.1.1.1
0 _& ~- ?% Z) n5 c- V+ X.1.3.6.1.2.1.1.2
.1.3.6.1.2.1.1.3

admin

（3）测试远端主机是否可以获取数据。
我这里登陆了另外一台Linux主机，该主机也按照上面的步骤安装好snmp服务及snmp工具。通过这台主机，获取远端主机的数据，这时需指定远端主机的IP地址：
1 {% `  c' o6 i9 s3 b; D, H* C+ t
) }, l3 X1 |3 p# {2 u$ ]7 \5 @[root@controller ~]# snmpwalk -v 2c -c public 192.168.8.66
SNMPv2-MIB::sysDescr.0 = STRING: Linux compute01 4.18.0-383.el8.x86_64 #1 SMP Wed Apr 20 15:38:08 UTC 2022 x86_64
SNMPv2-MIB::sysObjectID.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10
" ]& E( C, G6 IDISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (101013) 0:16:50.13
SNMPv2-MIB::sysContact.0 = STRING: Root <root@localhost> (configure /etc/snmp/snmp.local.conf)
SNMPv2-MIB::sysName.0 = STRING: compute01
SNMPv2-MIB::sysLocation.0 = STRING: Unknown (edit /etc/snmp/snmpd.conf)
, }' Z: O+ T3 \" }: [8 mSNMPv2-MIB::sysORLastChange.0 = Timeticks: (0) 0:00:00.00
SNMPv2-MIB::sysORID.1 = OID: SNMP-FRAMEWORK-MIB::snmpFrameworkMIBCompliance
SNMPv2-MIB::sysORID.2 = OID: SNMP-MPD-MIB::snmpMPDCompliance
SNMPv2-MIB::sysORID.3 = OID: SNMP-USER-BASED-SM-MIB::usmMIBCompliance
: h: i1 D! i% h9 KSNMPv2-MIB::sysORID.4 = OID: SNMPv2-MIB::snmpMIB
SNMPv2-MIB::sysORID.5 = OID: SNMP-VIEW-BASED-ACM-MIB::vacmBasicGroup
SNMPv2-MIB::sysORID.6 = OID: TCP-MIB::tcpMIB
1 _4 u# z1 ?: V' X3 A0 T. }+ [SNMPv2-MIB::sysORID.7 = OID: IP-MIB::ip
+ M4 ?" }4 U( e1 n! n3 K- P& KSNMPv2-MIB::sysORID.8 = OID: UDP-MIB::udpMIB
2 u3 b3 {% ]( T& I9 USNMPv2-MIB::sysORID.9 = OID: SNMP-NOTIFICATION-MIB::snmpNotifyFullCompliance
; }% c/ J3 f6 ~7 iSNMPv2-MIB::sysORID.10 = OID: NOTIFICATION-LOG-MIB::notificationLogMIB
1 F3 X% v* ?, e* N* s# @7 B, |SNMPv2-MIB::sysORDescr.1 = STRING: The SNMP Management Architecture MIB.
+ O6 V& d# Y" @' qSNMPv2-MIB::sysORDescr.2 = STRING: The MIB for Message Processing and Dispatching.
SNMPv2-MIB::sysORDescr.3 = STRING: The management information definitions for the SNMP User-based Security Model.
SNMPv2-MIB::sysORDescr.4 = STRING: The MIB module for SNMPv2 entities
SNMPv2-MIB::sysORDescr.5 = STRING: View-based Access Control Model for SNMP.
SNMPv2-MIB::sysORDescr.6 = STRING: The MIB module for managing TCP implementations
" j6 \2 |/ G& k& W* [2 S+ v( g' QSNMPv2-MIB::sysORDescr.7 = STRING: The MIB module for managing IP and ICMP implementations
SNMPv2-MIB::sysORDescr.8 = STRING: The MIB module for managing UDP implementations
SNMPv2-MIB::sysORDescr.9 = STRING: The MIB modules for managing SNMP Notification, plus filtering.
: d7 m" ?/ @: @+ g4 eSNMPv2-MIB::sysORDescr.10 = STRING: The MIB module for logging SNMP Notifications.
" r% f3 I3 S/ c" FSNMPv2-MIB::sysORUpTime.1 = Timeticks: (0) 0:00:00.00
SNMPv2-MIB::sysORUpTime.2 = Timeticks: (0) 0:00:00.00
& p2 l; v# S: ~SNMPv2-MIB::sysORUpTime.3 = Timeticks: (0) 0:00:00.00
5 M8 a; o2 \) ^- y( GSNMPv2-MIB::sysORUpTime.4 = Timeticks: (0) 0:00:00.00
  F, c  J/ v+ S; VSNMPv2-MIB::sysORUpTime.5 = Timeticks: (0) 0:00:00.00
SNMPv2-MIB::sysORUpTime.6 = Timeticks: (0) 0:00:00.00
SNMPv2-MIB::sysORUpTime.7 = Timeticks: (0) 0:00:00.00
SNMPv2-MIB::sysORUpTime.8 = Timeticks: (0) 0:00:00.00
SNMPv2-MIB::sysORUpTime.9 = Timeticks: (0) 0:00:00.00
. Q/ b6 X2 t+ }8 JSNMPv2-MIB::sysORUpTime.10 = Timeticks: (0) 0:00:00.00
/ A& [3 t1 v; N6 |. J' M4 s4 h8 gHOST-RESOURCES-MIB::hrSystemUptime.0 = Timeticks: (2715854) 7:32:38.54
HOST-RESOURCES-MIB::hrSystemUptime.0 = No more variables left in this MIB View (It is past the end of the MIB tree)
+ G1 v8 W4 b  u* h' _, f" F[root@controller ~]# snmpwalk -v 2c -c public 192.168.8.66 sysName.0
0 y4 c1 M- B: V$ W5 R' rSNMPv2-MIB::sysName.0 = STRING: compute01

admin

以上安装完成后，使用的是snmp的默认配置，通过这些默认配置，我们只能获取主机的部分信息。但一些其他的重要信息，无法获取。如主机的CPU使用情况，内存使用情况等。

[root@controller ~]# snmpwalk -v 2c -c public 192.168.8.66 1.3.6.1.4.1.2022.06.12.0
SNMPv2-SMI::enterprises.2022.6.12.0 = No more variables left in this MIB View (It is past the end of the MIB tree)
[root@controller ~]# snmpwalk -v 2c -c public 192.168.8.66 1.3.6.1.4.1
SNMPv2-SMI::enterprises = No more variables left in this MIB View (It is past the end of the MIB tree)
. h# [2 C8 o" r; l[root@controller ~]# snmpwalk -v 2c -c public 192.168.8.66 1.3.6.1.4.1.2022.06.12.17.48.0
  s1 q( h% h* r0 f* a* Q; nSNMPv2-SMI::enterprises.2022.6.12.17.48.0 = No more variables left in this MIB View (It is past the end of the MIB tree)

如上，无法获取CPU的空闲率（注：1.3.6.1.4.1.2021.11.11.0是主机CPU空闲率的oid）。这时候，若要获取主机的一些重要信息，则要修改snmp的默认配置。

( B! u& ]/ \0 v3 f. n2 ?

修改团体名

在配置文件中找到修改成如下：

com2sec notConfigUser  default       simware

7 _" N; Z1 g' b$ v& n. ^

修改查看设备节点的权限

添加：

view    systemview    included   .1

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+ D  C( G1 R, S# M9 Y1 y

修改Process checks的配置

去掉下面三个参数的#号

) t7 j! R% K- \0 {7 R7 z

#  Make sure mountd is running
proc mountd

#  Make sure there are no more than 4 ntalkds running, but 0 is ok too.
& r1 [4 B/ Q6 e: p& a5 b; tproc ntalkd 4

#  Make sure at least one sendmail, but less than or equal to 10 are running.
proc sendmail 10 1

修改Executables/scripts配置

' O2 t: T# D" X

以及exec的#号

exec echotest /bin/echo hello world

  W; a  x2 }  `  W

修改disk checks配置

5 ]# T) A/ i2 a8 |+ {

disk / 10000

修改load average checks配置

load 12 14 14

保存修改，重启snmp服务

systemctl restart snmpd.service

* q: n. J8 z# Z; |/ y* w[root@controller ~]# snmpwalk -v 2c -c simware 192.168.8.65 1.3.6.1.4.1.2021
7 K  f1 B0 o5 e! y( d- c! qUCD-SNMP-MIB::prIndex.1 = INTEGER: 1
UCD-SNMP-MIB::prIndex.2 = INTEGER: 2
) d: e0 e$ P+ w; }2 N# ^UCD-SNMP-MIB::prIndex.3 = INTEGER: 3
- T$ v; N: ~" a# `( g, cUCD-SNMP-MIB::prNames.1 = STRING: mountd
UCD-SNMP-MIB::prNames.2 = STRING: ntalkd
UCD-SNMP-MIB::prNames.3 = STRING: sendmail
UCD-SNMP-MIB::prMin.1 = INTEGER: 1
$ Q9 |  ]$ n- V! IUCD-SNMP-MIB::prMin.2 = INTEGER: 0
UCD-SNMP-MIB::prMin.3 = INTEGER: 1
UCD-SNMP-MIB::prMax.1 = INTEGER: 0
UCD-SNMP-MIB::prMax.2 = INTEGER: 4
, |2 O) O. D% J# q/ QUCD-SNMP-MIB::prMax.3 = INTEGER: 10
6 n( G: E! y' YUCD-SNMP-MIB::prCount.1 = INTEGER: 0
UCD-SNMP-MIB::prCount.2 = INTEGER: 0
UCD-SNMP-MIB::prCount.3 = INTEGER: 0
UCD-SNMP-MIB::prErrorFlag.1 = INTEGER: error(1)
* [$ i# W! b/ J( p- V6 GUCD-SNMP-MIB::prErrorFlag.2 = INTEGER: noError(0)
UCD-SNMP-MIB::prErrorFlag.3 = INTEGER: error(1)
# X2 U" X8 Z5 A0 n5 l4 B+ L$ J& jUCD-SNMP-MIB::prErrMessage.1 = STRING: No mountd process running
, \( `+ }0 ~$ C! A: `% Q5 DUCD-SNMP-MIB::prErrMessage.2 = STRING:
UCD-SNMP-MIB::prErrMessage.3 = STRING: No sendmail process running
, n( E1 c0 d- n) r. LUCD-SNMP-MIB::prErrFix.1 = INTEGER: noError(0)
$ Z. [9 b8 ]" ?% FUCD-SNMP-MIB::prErrFix.2 = INTEGER: noError(0)
UCD-SNMP-MIB::prErrFix.3 = INTEGER: noError(0)
UCD-SNMP-MIB::prErrFixCmd.1 = STRING:
! n  |" |7 P' Y  w3 h5 D' fUCD-SNMP-MIB::prErrFixCmd.2 = STRING:
UCD-SNMP-MIB::prErrFixCmd.3 = STRING:
6 Q" x5 I+ u2 j$ S1 f; rUCD-SNMP-MIB::memIndex.0 = INTEGER: 0
UCD-SNMP-MIB::memErrorName.0 = STRING: swap
UCD-SNMP-MIB::memTotalSwap.0 = INTEGER: 33554428 kB
% R. @- C; [+ oUCD-SNMP-MIB::memAvailSwap.0 = INTEGER: 33554428 kB
UCD-SNMP-MIB::memTotalReal.0 = INTEGER: 16193940 kB
UCD-SNMP-MIB::memAvailReal.0 = INTEGER: 3250196 kB
2 U* }! k, g! O7 J! l1 t% N  y2 nUCD-SNMP-MIB::memTotalFree.0 = INTEGER: 36804624 kB
UCD-SNMP-MIB::memMinimumSwap.0 = INTEGER: 16000 kB
/ Q* k- E7 R, q: RUCD-SNMP-MIB::memShared.0 = INTEGER: 132832 kB
UCD-SNMP-MIB::memBuffer.0 = INTEGER: 3172 kB
UCD-SNMP-MIB::memCached.0 = INTEGER: 1210084 kB
+ Q; j) f+ Z8 N, e0 O6 E/ FUCD-SNMP-MIB::memTotalSwapX.0 = Counter64: 33554428 kB
UCD-SNMP-MIB::memAvailSwapX.0 = Counter64: 33554428 kB
UCD-SNMP-MIB::memTotalRealX.0 = Counter64: 16193940 kB
7 U$ i; |' l* a1 w+ _( FUCD-SNMP-MIB::memAvailRealX.0 = Counter64: 3250196 kB
UCD-SNMP-MIB::memTotalFreeX.0 = Counter64: 36804624 kB
UCD-SNMP-MIB::memMinimumSwapX.0 = Counter64: 16000 kB
UCD-SNMP-MIB::memSharedX.0 = Counter64: 132832 kB
UCD-SNMP-MIB::memBufferX.0 = Counter64: 3172 kB
UCD-SNMP-MIB::memCachedX.0 = Counter64: 1210084 kB
6 q# w# a& B( rUCD-SNMP-MIB::memSwapError.0 = INTEGER: noError(0)
UCD-SNMP-MIB::memSwapErrorMsg.0 = STRING:
UCD-SNMP-MIB::extIndex.1 = INTEGER: 1
) {* D( T; E" m" Q/ ?UCD-SNMP-MIB::extNames.1 = STRING: echotest
6 e& s( ~8 ]. J$ r0 E% G* |0 N5 dUCD-SNMP-MIB::extCommand.1 = STRING: /bin/echo hello world
UCD-SNMP-MIB::extResult.1 = INTEGER: 0
9 |9 l# U, g1 }( DUCD-SNMP-MIB::extOutput.1 = STRING: hello world
UCD-SNMP-MIB::extErrFix.1 = INTEGER: noError(0)
UCD-SNMP-MIB::extErrFixCmd.1 = STRING:
. Z1 ^4 I2 p& r; J: zUCD-SNMP-MIB::dskIndex.1 = INTEGER: 1
UCD-SNMP-MIB::dskPath.1 = STRING: /
UCD-SNMP-MIB::dskDevice.1 = STRING: /dev/mapper/cs-root
UCD-SNMP-MIB::dskMinimum.1 = INTEGER: 10000
) G/ [* f, Z9 K! }$ [" o: CUCD-SNMP-MIB::dskMinPercent.1 = INTEGER: -1
' s1 f9 {* c: k* K+ ~/ TUCD-SNMP-MIB::dskTotal.1 = INTEGER: 453557884
UCD-SNMP-MIB::dskAvail.1 = INTEGER: 421956392
UCD-SNMP-MIB::dskUsed.1 = INTEGER: 31601492
UCD-SNMP-MIB::dskPercent.1 = INTEGER: 7
UCD-SNMP-MIB::dskPercentNode.1 = INTEGER: 0
% ~2 n, n7 K% z$ eUCD-SNMP-MIB::dskTotalLow.1 = Gauge32: 453557884
UCD-SNMP-MIB::dskTotalHigh.1 = Gauge32: 0
( P; r* {! s4 K2 D  e# Y/ @& ZUCD-SNMP-MIB::dskAvailLow.1 = Gauge32: 421956392
$ U8 _. ?2 p( P& d0 iUCD-SNMP-MIB::dskAvailHigh.1 = Gauge32: 0
7 J2 V+ Q* O/ T3 }8 EUCD-SNMP-MIB::dskUsedLow.1 = Gauge32: 31601492
UCD-SNMP-MIB::dskUsedHigh.1 = Gauge32: 0
UCD-SNMP-MIB::dskErrorFlag.1 = INTEGER: noError(0)
1 k. I5 Y9 K, V8 P, R" R( b9 \" B/ ^UCD-SNMP-MIB::dskErrorMsg.1 = STRING:
5 Z8 D& l4 S* y% k3 ^8 jUCD-SNMP-MIB::laIndex.1 = INTEGER: 1
6 U' t: z4 Q, ?% i; z! p) `UCD-SNMP-MIB::laIndex.2 = INTEGER: 2
UCD-SNMP-MIB::laIndex.3 = INTEGER: 3
) A9 b& ]( W+ e8 r5 L5 oUCD-SNMP-MIB::laNames.1 = STRING: Load-1
: A# I% r8 x3 j8 n- f  F, `UCD-SNMP-MIB::laNames.2 = STRING: Load-5
0 Y6 t; w/ N  F9 DUCD-SNMP-MIB::laNames.3 = STRING: Load-15
UCD-SNMP-MIB::laLoad.1 = STRING: 0.72
UCD-SNMP-MIB::laLoad.2 = STRING: 0.43
UCD-SNMP-MIB::laLoad.3 = STRING: 0.36
UCD-SNMP-MIB::laConfig.1 = STRING: 12.00
UCD-SNMP-MIB::laConfig.2 = STRING: 14.00
UCD-SNMP-MIB::laConfig.3 = STRING: 14.00
3 A* }9 |6 V# z, e6 CUCD-SNMP-MIB::laLoadInt.1 = INTEGER: 72
: z% |+ A! Z/ M% bUCD-SNMP-MIB::laLoadInt.2 = INTEGER: 43
5 r; X9 x/ G1 {! \" b# y4 UUCD-SNMP-MIB::laLoadInt.3 = INTEGER: 36
UCD-SNMP-MIB::laLoadFloat.1 = Opaque: Float: 0.720000
' B6 J' d/ e8 C# yUCD-SNMP-MIB::laLoadFloat.2 = Opaque: Float: 0.430000
' B, O7 V1 M3 x& t. fUCD-SNMP-MIB::laLoadFloat.3 = Opaque: Float: 0.360000
UCD-SNMP-MIB::laErrorFlag.1 = INTEGER: noError(0)
- k0 I. f9 y4 S, l% \UCD-SNMP-MIB::laErrorFlag.2 = INTEGER: noError(0)
$ ]# A" [; X" \3 b& YUCD-SNMP-MIB::laErrorFlag.3 = INTEGER: noError(0)
$ E+ x5 \1 m4 z/ y( x3 X* n) rUCD-SNMP-MIB::laErrMessage.1 = STRING:
UCD-SNMP-MIB::laErrMessage.2 = STRING:
UCD-SNMP-MIB::laErrMessage.3 = STRING:
& D6 q5 L, z/ W/ [0 |3 L" b, jUCD-SNMP-MIB::ssIndex.0 = INTEGER: 1
UCD-SNMP-MIB::ssErrorName.0 = STRING: systemStats
UCD-SNMP-MIB::ssSwapIn.0 = INTEGER: 0 kB
UCD-SNMP-MIB::ssSwapOut.0 = INTEGER: 0 kB
& S. A. O" T% f. Z- cUCD-SNMP-MIB::ssIOSent.0 = INTEGER: 293 blocks/s
UCD-SNMP-MIB::ssIOReceive.0 = INTEGER: 0 blocks/s
. \, v$ q  Z1 a" GUCD-SNMP-MIB::ssSysInterrupts.0 = INTEGER: 5681 interrupts/s
1 |. k. A, x! W+ P: dUCD-SNMP-MIB::ssSysContext.0 = INTEGER: 8348 switches/s
' Z8 l3 H/ z4 D9 qUCD-SNMP-MIB::ssCpuUser.0 = INTEGER: 2
0 D+ m) @- J' T. i: ]- {  e5 r# _2 j3 BUCD-SNMP-MIB::ssCpuSystem.0 = INTEGER: 0
$ o9 s/ f$ _+ d' fUCD-SNMP-MIB::ssCpuIdle.0 = INTEGER: 96
UCD-SNMP-MIB::ssCpuRawUser.0 = Counter32: 3105282
, ~% d3 X# P1 ^, u' c, D: c1 [* JUCD-SNMP-MIB::ssCpuRawNice.0 = Counter32: 1008
UCD-SNMP-MIB::ssCpuRawSystem.0 = Counter32: 476167
UCD-SNMP-MIB::ssCpuRawIdle.0 = Counter32: 18691124
# L  X& {6 Y1 TUCD-SNMP-MIB::ssCpuRawWait.0 = Counter32: 103942
UCD-SNMP-MIB::ssCpuRawKernel.0 = Counter32: 0
UCD-SNMP-MIB::ssCpuRawInterrupt.0 = Counter32: 92177
UCD-SNMP-MIB::ssIORawSent.0 = Counter32: 6495402
UCD-SNMP-MIB::ssIORawReceived.0 = Counter32: 1800440
UCD-SNMP-MIB::ssRawInterrupts.0 = Counter32: 155799825
% l+ l! ^8 y( l; P4 f2 A' |2 ^UCD-SNMP-MIB::ssRawContexts.0 = Counter32: 361920370
+ w9 q8 Q2 O" h8 k6 o' _; NUCD-SNMP-MIB::ssCpuRawSoftIRQ.0 = Counter32: 24716
# x/ @1 E5 b2 o6 D- m* M* l" d1 S7 rUCD-SNMP-MIB::ssRawSwapIn.0 = Counter32: 0
( U& e2 h. f+ [; ?( z* `UCD-SNMP-MIB::ssRawSwapOut.0 = Counter32: 0
UCD-SNMP-MIB::ssCpuRawSteal.0 = Counter32: 0
- n8 T5 Q( v2 bUCD-SNMP-MIB::ssCpuRawGuest.0 = Counter32: 0
UCD-SNMP-MIB::ssCpuRawGuestNice.0 = Counter32: 0
0 O4 s3 v- O! NUCD-SNMP-MIB::ssCpuNumCpus.0 = INTEGER: 8
+ y+ ~! K4 g; g6 q# I: z3 g$ m$ Q; nUCD-DLMOD-MIB::dlmodNextIndex.0 = INTEGER: 1
: E) q' A1 c3 O# ]UCD-DISKIO-MIB::diskIOIndex.1 = INTEGER: 1
8 N( ^- C' _8 ?; t# `UCD-DISKIO-MIB::diskIOIndex.2 = INTEGER: 2
7 h2 n0 o% _9 [7 Q* w2 U$ [UCD-DISKIO-MIB::diskIOIndex.3 = INTEGER: 3
9 q6 v9 e" _1 z( FUCD-DISKIO-MIB::diskIOIndex.4 = INTEGER: 4
UCD-DISKIO-MIB::diskIOIndex.5 = INTEGER: 5
UCD-DISKIO-MIB::diskIOIndex.6 = INTEGER: 6
# T& b# S9 P8 C6 ~+ k$ X5 V: ~( ]UCD-DISKIO-MIB::diskIOIndex.7 = INTEGER: 7
; S+ F: n9 \9 F3 w% P  z& u, K5 u6 \UCD-DISKIO-MIB::diskIODevice.1 = STRING: sdc
UCD-DISKIO-MIB::diskIODevice.2 = STRING: sda
UCD-DISKIO-MIB::diskIODevice.3 = STRING: sda1
1 I7 d. |* {" H- S! Q# s2 IUCD-DISKIO-MIB::diskIODevice.4 = STRING: sda2
9 h( F: b* j; U/ h) V: X+ z; ^! {UCD-DISKIO-MIB::diskIODevice.5 = STRING: sdb
$ [* }/ z  |6 p2 \+ |UCD-DISKIO-MIB::diskIODevice.6 = STRING: dm-0
0 V( I0 a; [5 c# l* R9 ~UCD-DISKIO-MIB::diskIODevice.7 = STRING: dm-1
; X, M* ?3 c9 a3 Y5 pUCD-DISKIO-MIB::diskIONRead.1 = Counter32: 3212288
2 a- H" N3 K( D; ^5 A# sUCD-DISKIO-MIB::diskIONRead.2 = Counter32: 915387904
UCD-DISKIO-MIB::diskIONRead.3 = Counter32: 45785088
* p. ]. i. e! k; ~UCD-DISKIO-MIB::diskIONRead.4 = Counter32: 867734016
UCD-DISKIO-MIB::diskIONRead.5 = Counter32: 3228672
UCD-DISKIO-MIB::diskIONRead.6 = Counter32: 862110208
UCD-DISKIO-MIB::diskIONRead.7 = Counter32: 2273280
UCD-DISKIO-MIB::diskIONWritten.1 = Counter32: 0
+ h/ L& f* Y# c1 G4 [) ?) LUCD-DISKIO-MIB::diskIONWritten.2 = Counter32: 3326260224
+ Q$ c& v  X0 oUCD-DISKIO-MIB::diskIONWritten.3 = Counter32: 2097152
UCD-DISKIO-MIB::diskIONWritten.4 = Counter32: 3324163072
+ [; Q$ j5 t9 [$ dUCD-DISKIO-MIB::diskIONWritten.5 = Counter32: 0
UCD-DISKIO-MIB::diskIONWritten.6 = Counter32: 3324163072
UCD-DISKIO-MIB::diskIONWritten.7 = Counter32: 0
- H+ b8 d) r8 a) [# ]9 uUCD-DISKIO-MIB::diskIOReads.1 = Counter32: 111
UCD-DISKIO-MIB::diskIOReads.2 = Counter32: 27909
UCD-DISKIO-MIB::diskIOReads.3 = Counter32: 2279
1 m5 _. t# C7 n( lUCD-DISKIO-MIB::diskIOReads.4 = Counter32: 25577
& Z4 `* K, o2 p' M7 B$ w! \* K9 QUCD-DISKIO-MIB::diskIOReads.5 = Counter32: 107
9 _# R& E: n+ sUCD-DISKIO-MIB::diskIOReads.6 = Counter32: 25542
UCD-DISKIO-MIB::diskIOReads.7 = Counter32: 98
+ m/ h6 i$ h8 hUCD-DISKIO-MIB::diskIOWrites.1 = Counter32: 0
+ P( T, \$ U. k$ l/ F5 hUCD-DISKIO-MIB::diskIOWrites.2 = Counter32: 255695
UCD-DISKIO-MIB::diskIOWrites.3 = Counter32: 2
' |  b4 y( t2 v3 y# uUCD-DISKIO-MIB::diskIOWrites.4 = Counter32: 185172
. x1 N& ]* P+ b% v. ]UCD-DISKIO-MIB::diskIOWrites.5 = Counter32: 0
- f5 ^4 L1 e, W6 }UCD-DISKIO-MIB::diskIOWrites.6 = Counter32: 266194
UCD-DISKIO-MIB::diskIOWrites.7 = Counter32: 0
* ~- y4 W- L" k( f4 _. q2 s# L1 bUCD-DISKIO-MIB::diskIOLA1.1 = INTEGER: 0
UCD-DISKIO-MIB::diskIOLA1.2 = INTEGER: 10
UCD-DISKIO-MIB::diskIOLA1.3 = INTEGER: 0
UCD-DISKIO-MIB::diskIOLA1.4 = INTEGER: 5
: @' \$ I% H/ r  Z! I8 ]UCD-DISKIO-MIB::diskIOLA1.5 = INTEGER: 0
5 W- k0 c8 q+ b; J/ c5 j* D# VUCD-DISKIO-MIB::diskIOLA1.6 = INTEGER: 10
UCD-DISKIO-MIB::diskIOLA1.7 = INTEGER: 0
UCD-DISKIO-MIB::diskIOLA5.1 = INTEGER: 0
' ~3 x. r( @* Q, M& dUCD-DISKIO-MIB::diskIOLA5.2 = INTEGER: 5
UCD-DISKIO-MIB::diskIOLA5.3 = INTEGER: 0
6 q' p1 S& a( H1 `+ w2 M$ pUCD-DISKIO-MIB::diskIOLA5.4 = INTEGER: 2
- e( t- u  [) \5 C7 n# n) t' l6 GUCD-DISKIO-MIB::diskIOLA5.5 = INTEGER: 0
UCD-DISKIO-MIB::diskIOLA5.6 = INTEGER: 5
UCD-DISKIO-MIB::diskIOLA5.7 = INTEGER: 0
" E9 _9 q5 }+ I, b+ {% T  _UCD-DISKIO-MIB::diskIOLA15.1 = INTEGER: 0
UCD-DISKIO-MIB::diskIOLA15.2 = INTEGER: 2
UCD-DISKIO-MIB::diskIOLA15.3 = INTEGER: 0
UCD-DISKIO-MIB::diskIOLA15.4 = INTEGER: 1
UCD-DISKIO-MIB::diskIOLA15.5 = INTEGER: 0
5 F: h- J8 d% f0 G- A4 F! [UCD-DISKIO-MIB::diskIOLA15.6 = INTEGER: 2
0 y4 @9 S& X' V2 J. TUCD-DISKIO-MIB::diskIOLA15.7 = INTEGER: 0
  `6 E2 p# T9 O' X/ d4 `8 [UCD-DISKIO-MIB::diskIONReadX.1 = Counter64: 3212288
UCD-DISKIO-MIB::diskIONReadX.2 = Counter64: 915387904
- B6 G, \1 t* ^/ F+ fUCD-DISKIO-MIB::diskIONReadX.3 = Counter64: 45785088
, z4 [7 z" }5 Y) s" m0 l3 V- m  f$ |UCD-DISKIO-MIB::diskIONReadX.4 = Counter64: 867734016
UCD-DISKIO-MIB::diskIONReadX.5 = Counter64: 3228672
. [0 y8 M, V5 B3 a4 [1 N7 L1 c: fUCD-DISKIO-MIB::diskIONReadX.6 = Counter64: 862110208
UCD-DISKIO-MIB::diskIONReadX.7 = Counter64: 2273280
" r+ O/ t  q4 F' Z) g: jUCD-DISKIO-MIB::diskIONWrittenX.1 = Counter64: 0
UCD-DISKIO-MIB::diskIONWrittenX.2 = Counter64: 3326260224
UCD-DISKIO-MIB::diskIONWrittenX.3 = Counter64: 2097152
UCD-DISKIO-MIB::diskIONWrittenX.4 = Counter64: 3324163072
# N( X" x* k% A% S4 b  LUCD-DISKIO-MIB::diskIONWrittenX.5 = Counter64: 0
UCD-DISKIO-MIB::diskIONWrittenX.6 = Counter64: 3324163072
! S/ A6 W  \: j* M& Q: RUCD-DISKIO-MIB::diskIONWrittenX.7 = Counter64: 0
UCD-DISKIO-MIB::diskIOBusyTime.1 = Counter64: 288000
, _- ~3 d$ {+ g$ [. `3 WUCD-DISKIO-MIB::diskIOBusyTime.2 = Counter64: 2846627000
UCD-DISKIO-MIB::diskIOBusyTime.3 = Counter64: 4984000
: `* ], d9 Z  E* V& n; ~0 k  \7 cUCD-DISKIO-MIB::diskIOBusyTime.4 = Counter64: 1470115000
0 w( j+ Z. G8 JUCD-DISKIO-MIB::diskIOBusyTime.5 = Counter64: 1267000
UCD-DISKIO-MIB::diskIOBusyTime.6 = Counter64: 2832976000
' n4 S7 r5 Y, C6 [2 K! V+ KUCD-DISKIO-MIB::diskIOBusyTime.7 = Counter64: 2092000
LM-SENSORS-MIB::lmTempSensorsIndex.1 = INTEGER: 1
  k+ X5 Y. y+ P- k: D4 b1 [LM-SENSORS-MIB::lmTempSensorsIndex.2 = INTEGER: 2
4 T( ^* @: F5 o4 s" a7 U0 L. B$ oLM-SENSORS-MIB::lmTempSensorsIndex.3 = INTEGER: 3
LM-SENSORS-MIB::lmTempSensorsIndex.4 = INTEGER: 4
LM-SENSORS-MIB::lmTempSensorsDevice.1 = STRING: Core 0
/ O9 V% d3 I' \9 |' vLM-SENSORS-MIB::lmTempSensorsDevice.2 = STRING: Core 1
1 X" @1 v* w. ~LM-SENSORS-MIB::lmTempSensorsDevice.3 = STRING: Core 9
LM-SENSORS-MIB::lmTempSensorsDevice.4 = STRING: Core 10
LM-SENSORS-MIB::lmTempSensorsValue.1 = Gauge32: 38000
LM-SENSORS-MIB::lmTempSensorsValue.2 = Gauge32: 33000
5 ]6 }( ~- W) I) u. w2 xLM-SENSORS-MIB::lmTempSensorsValue.3 = Gauge32: 36000
6 @" a# P. M/ q" ~# K. @* A7 ?* bLM-SENSORS-MIB::lmTempSensorsValue.4 = Gauge32: 36000
UCD-SNMP-MIB::logMatchMaxEntries.0 = INTEGER: 250
( B0 R( v- |* d$ K; Y+ R" nUCD-SNMP-MIB::versionIndex.0 = INTEGER: 1
UCD-SNMP-MIB::versionTag.0 = STRING: 5.8
# c! t* S3 P9 xUCD-SNMP-MIB::versionDate.0 = STRING: $Date$
UCD-SNMP-MIB::versionCDate.0 = STRING: Sun Jun 12 18:00:21 2022
UCD-SNMP-MIB::versionIdent.0 = STRING: $Id$
. |/ f; [9 F% sUCD-SNMP-MIB::versionConfigureOptions.0 = STRING:  '--build=x86_64-redhat-linux-gnu' '--host=x86_64-redhat-linux-gnu' '--program-prefix=' '--disable-dependency-tracking' '--prefix=/usr' '--exec-prefix=/usr' '--bindir=/usr/bin' '--sbindir=/usr/sbin' '--datadir=/usr/share' '--includedir=/usr/include' '--libdir=/usr/lib64' '--libexecdir=/usr/libexec' '--localstatedir=/var' '--sharedstatedir=/var/lib' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--disable-static' '--enable-shared' '--enable-as-needed' '--enable-blumenthal-aes' '--enable-embedded-perl' '--enable-ipv6' '--enable-local-smux' '--enable-mfd-rewrites' '--enable-ucd-snmp-compatibility' '--sysconfdir=/etc' '--with-cflags=-O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection' '--with-ldflags=-Wl,-z,relro -Wl,-z,now -l
UCD-SNMP-MIB::versionClearCache.0 = INTEGER: 0
UCD-SNMP-MIB::versionUpdateConfig.0 = INTEGER: 0
UCD-SNMP-MIB::versionRestartAgent.0 = INTEGER: 0
" m' D' e: D7 WUCD-SNMP-MIB::versionSavePersistentData.0 = INTEGER: 0
UCD-SNMP-MIB::versionDoDebugging.0 = INTEGER: 0
  e$ {9 S# O  ?0 E, hUCD-SNMP-MIB::snmperrIndex.0 = INTEGER: 0
# Q5 D% n1 P1 U! J  X2 w2 OUCD-SNMP-MIB::snmperrNames.0 = STRING: snmp
UCD-SNMP-MIB::snmperrErrorFlag.0 = INTEGER: noError(0)
UCD-SNMP-MIB::snmperrErrMessage.0 = STRING:


/ R  e8 B1 R- M. ^; X. {
/ G) n& u  M, Y% T
1 y$ ^0 E) j. q0 s+ Y  y: a

admin

snmpwalk -v3 -l authNoPriv -u <USER> -A <PASSWORD> <HOST> <OID>

admin

There are lots of options (this post is a very basic howto. You can read the manpage for further information), but basically I use snmpwalk this way depending on the SNMP version:

1 l8 ^( m, R" [* s2 O; M6 jsnmpwalk -v1 -c <COMMUNITY> <HOST> <OID>
# S" S7 U( e* t/ E- S1 T: x# ~, Z' @snmpwalk -v2c -c <COMMUNITY> <HOST> <OID>
snmpwalk -v3 -l authNoPriv -u <USER> -A <PASSWORD> <HOST> <OID>

Examples of snmpwalk usage:
; `' y; T3 g' _! Q( h; k
$ B# _/ ~. C0 }0 s0 |; aIronport queued mails (query with single value return):
, l8 \3 v! r9 h( e& p
# snmpwalk -v1 -c public IRONPORT1 1.3.6.1.4.1.15497.1.1.1.11
$ }/ W, M. ~% TSNMPv2-SMI::enterprises.15497.1.1.1.11.0 = Gauge32: 0
$ D6 f2 S2 M. L9 WGSA Google Search Appliance disk health (query with single value return):
1 R" Q8 r4 V4 K" t" x1 x
# /usr/bin/snmpwalk -v1 -c public GSA1 system.gsaDisk.diskHealth
3 [) }2 q9 ~( Z6 h6 DGSA-MIB::diskHealth.0 = INTEGER: green(0)
9 j: h0 R* r! r: ^Checkpoint VSX fans status (query with single value return):

1 A! K. W& o) _
# snmpwalk -v3 -l authNoPriv -u fwadmin -A ******** VSX1 .1.3.6.1.4.1.2620.1.6.7.8.2.1.fanSpeedSensorStatus

& Q4 @' l4 e# v( y( NCHECKPOINT-MIB::fanSpeedSensorStatus.1.0 = INTEGER: 0
CHECKPOINT-MIB::fanSpeedSensorStatus.2.0 = INTEGER: 0
  B1 @; U3 V. ]CHECKPOINT-MIB::fanSpeedSensorStatus.3.0 = INTEGER: 0
CHECKPOINT-MIB::fanSpeedSensorStatus.4.0 = INTEGER: 0
Note in this case we can get one of the fans status value by appending the fan ID to the OID…
' X" o- S5 S+ d# Y) o: Z( a1 q2 C
0 N: d  M: _( G- N' x- @' ]  r
Checkpoint VSX fan 3 status (query with single value return):

# snmpwalk -v3 -l authNoPriv -u fwadmin -A ******** VSX1 .1.3.6.1.4.1.2620.1.6.7.8.2.1.fanSpeedSensorStatus.3
CHECKPOINT-MIB::fanSpeedSensorStatus.3.0 = INTEGER: 0
, {" a8 e. u, rUPS Output powers in watts (Query with multiple value return):

$ e# U$ D- a) m" ~* T( z# snmpwalk -v1 -c public SA1 1.3.6.1.4.1.534.1.4.4.1.4
SNMPv2-SMI::enterprises.534.1.4.4.1.4.1 = INTEGER: 1956
SNMPv2-SMI::enterprises.534.1.4.4.1.4.2 = INTEGER: 1567
  D! e8 z/ R  g! E4 }+ zSNMPv2-SMI::enterprises.534.1.4.4.1.4.3 = INTEGER: 1675
/ y4 f; J" E1 I9 EUPS Output power 2 in watts (Query with single value return):
+ P2 m6 o* B- ~" l' H$ H5 P& E1 j
# snmpwalk -v1 -c public SAI1 1.3.6.1.4.1.534.1.4.4.1.4.2
# ~3 O# Y  c0 W9 [6 |SNMPv2-SMI::enterprises.534.1.4.4.1.4.2 = INTEGER: 1567