上回看了platinum的"mrtg能做些什麼"貼子,很受啓發,於是也試着做了一個。但當時對snmpd不是很熟,所以沒有做成功,後來仔細看了一下snmd的有關文章和RH中的/etc/snmp/snmpd.conf文件,發現用snmp+mrtg可以很好的實現對局域網內服務器狀態的監控。
現在就以用snmp+mrtg監控一臺局域網內的redhat機器(IP:192.168.13.103)的網卡、內存、CPU、DISKIO爲例子,談一下如何實現。基本的法辦就是用一臺redhat監控機器(IP:192.168.13.105),通過snmpwalk命令去抓目標服務器的狀態數據,然後用mrtg畫出圖來。
1、首先我們要把目標snmpd.conf文件的配好。這是用snmpwalk命令一抓取數據的關健。下面是目標機器(IP:192.168.13.103)上的/etc/snmp/snmpd.conf文件部份內容,紅色的部份是我對snmpd.conf所做的改動。
[root@wy1 root]# cat /etc/snmp/snmpd.conf
####
# First, map the community name "public" into a "security name"
# sec.name source community
com2sec notConfigUser default public #定義community名稱爲 public,映射到安全名 notConfigUser。
####
# Second, map the security name into a group name:
# groupName securityModel securityName
group notConfigGroup v1 notConfigUser #定義安全用戶名notConfigUser映射到notConfigGroup組。
group notConfigGroup v2c notConfigUser
####
# Third, create a view for us to let the group have rights to: #定義一個view,來決定notConfigUser可以操作的範圍。
# Make at least snmpwalk -v 1 localhost -c public system fast again. #定義可查看的snmp的範圍。
# 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
[color=red]view all included .1[/color]
####
# Finally, grant the group read-only access to the systemview view. #給notConfigGroup組所定義view名 all 以只讀權限。
# group context sec.model sec.level prefix read write notif
[color=red]access notConfigGroup "" any noauth exact all none none[/color]#access notConfigGroup "" any noauth exact mib2 none none
# -----------------------------------------------------------------------------
# Here is a commented out example configuration that allows less
# restrictive access.
# YOU SHOULD CHANGE THE "COMMUNITY" TOKEN BELOW TO A NEW KEYWORD ONLY
# KNOWN AT YOUR SITE. YOU *MUST* CHANGE THE NETWORK TOKEN BELOW TO
# SOMETHING REFLECTING YOUR LOCAL NETWORK ADDRESS SPACE.
## sec.name source community
#com2sec local localhost COMMUNITY
#com2sec mynetwork NETWORK/24 COMMUNITY
## group.name sec.model sec.name
#group MyRWGroup any local
#group MyROGroup any mynetwork
#
#group MyRWGroup any otherv3user
#...
## incl/excl subtree mask
#view all included .1 80
## -or just the mib2 tree-
#view mib2 included .iso.org.dod.internet.mgmt.mib-2 fc
#view mib2 included .iso.org.dod.internet.mgmt.mib-2 fc
## context sec.model sec.level prefix read write notif
#access MyROGroup "" any noauth 0 all none none
#access MyRWGroup "" any noauth 0 all all all
其實配製一個snmpd.conf文件不算太難,
(1)首選是定義一個共同體名(community),這裏是public,及可以訪問這個public的用戶名(sec name),這裏是notConfigUser。Public相當於用戶notConfigUser的密碼:)
# sec.name source community
com2sec notConfigUser default public
(2)定義一個組名(groupName)這裏是notConfigGroup,及組的安全級別,把notConfigGroup這個用戶加到這個組中。
groupName securityModel securityName
group notConfigGroup v1 notConfigUser
group notConfigGroup v2c notConfigUser
(3)定義一個可操作的範圍(view)名, 這裏是all,範圍是 .1
# name incl/excl subtree mask(optional)
view all included .1
(4)定義notConfigUser這個組在all這個view範圍內可做的操作,這時定義了notConfigUser組的成員可對.1這個範圍做只讀操作。
# group context sec.model sec.level prefix read write notif
access notConfigGroup "" any noauth exact all none none
ok,這樣我們的snmpd.conf文件就基本配成了,用service snmpd restart重啓snmpd服務。現在我們做一個測試,在監控機上打下面的命令:
[root@wy2 root]# snmpwalk -v 1 192.168.13.103 -c public system
SNMPv2-MIB::sysDescr.0 = STRING: Linux wy1 2.4.20-8smp #1 SMP Thu Mar 13 17:45:54 EST 2003 i686
SNMPv2-MIB::sysObjectID.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10
SNMPv2-MIB::sysUpTime.0 = Timeticks: (7565377) 21:00:53.77
SNMPv2-MIB::sysContact.0 = STRING: Root <[email][email protected][/email]>; (configure /etc/snmp/snmp.local.conf)
SNMPv2-MIB::sysName.0 = STRING: wy1
SNMPv2-MIB::sysLocation.0 = STRING: wy1.wuying.com (edit /etc/snmp/snmpd.conf)
SNMPv2-MIB::sysORLastChange.0 = Timeticks: (10) 0:00:00.10
``````````````````````
“Linux wy1 2.4.20-8smp”操作系統的信息已經出來了:)
現在我們在目標機上來寫一些腳本來顯標MEM、CPU、DiskIO
MEM數據的抓取腳本:
[root@wy1 root]# cat mfree.sh
#!/bin/sh
/usr/bin/free -m | grep Mem |awk '{print $4}'
/usr/bin/free -m | grep Mem |awk '{print $2}'
[root@wy1 root]# sh mfree.sh (上面一個數據是內存使用量,下面的是內存總量,M)
442
1006
CPU數據的抓取腳本
[root@wy1 root]# cat cpustat.sh
#!/bin/sh
idle=`sar -u 1 3 | grep Average | awk '{print $6}'`
used=`echo "101 - $idle" | bc -l -s`
echo $used
echo $idle
DiskIO數據的抓取腳本
[root@wy1 root]# cat iostat.sh (顯示硬盤IO,k/s)
#!/bin/sh
used1=`sar -d 1 3 | tail -1 | awk '{print $4}'`
used2=`echo "$used1 / 2" | bc -l`
echo $used2
echo $used2
好現在我們已經能得到這數據了,怎麼才能讓監控主機通過snmpd得到這些數據呢?可以在目標主機的/etc/snmp/snmpd.conf文件下面加個這些行:
exec .1.3.6.1.4.1.2021.53 mfree /bin/sh /root/mfree.sh
exec .1.3.6.1.4.1.2021.54 cpustat /bin/sh /root/cpustat.sh
exec .1.3.6.1.4.1.2021.55 iostat /bin/sh /root/iostat.sh
service snmpd restart 重啓目標主機上的snmpd服務。
這樣在監控主機上運行:
[root@wy2 root]# snmpwalk -v 1 192.168.13.103 -c public .1.3.6.1.4.1.2021.53
UCD-SNMP-MIB::ucdavis.53.1.1 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.53.2.1 = STRING: "mfree"
UCD-SNMP-MIB::ucdavis.53.3.1 = STRING: "/bin/sh /root/mfree.sh"
UCD-SNMP-MIB::ucdavis.53.100.1 = INTEGER: 0
UCD-SNMP-MIB::ucdavis.53.101.1 = STRING: "442"
UCD-SNMP-MIB::ucdavis.53.101.2 = STRING: "1006"
UCD-SNMP-MIB::ucdavis.53.102.1 = INTEGER: 0
其中UCD-SNMP-MIB::ucdavis.53.101.1 = STRING: "442" 中的442就是mfree.sh輸出的第一個數據,1006是mfree.sh輸出的第二個數據。OK,再做一下加工:
[root@wy2 root]# snmpwalk -v 1 192.168.13.103 -c public .1.3.6.1.4.1.2021.53 | grep 53.101 | awk -F\" '{print $2}'
443
1006
好,我們已經通過snmpd從監控主機上得到了目標主機上內存使用的這兩個數據了:),其它的兩個腳本也一樣:
CPU使用、空閒。
[root@wy2 root]# snmpwalk -v 1 192.168.13.103 -c public .1.3.6.1.4.1.2021.54 | grep 54.101 | awk -F\" '{print $2}'
1.17
99.83
DISK IO 狀態:
[root@wy2 root]# snmpwalk -v 1 192.168.13.103 -c public .1.3.6.1.4.1.2021.55 | grep 55.101 | awk -F\" '{print $2}'
43.00000000000000000000
43.00000000000000000000
最後是編輯監控主機上的mrtg.cfg文件,在Target[xxxx]中加入上面的命令,下面是我的mrtg.cfg文件,前面的兩個Target是我用/usr/bin/cfgmaker --global 'WorkDir: /home/httpd/mrtg/net' --global 'Options[_]:growright,bits' --ifref=ip [email protected] 命令生成的,後面的是我跟據platinum 的"mrtg能做些什麼"的貼子內的mrtg.cfg文件改的。(在精華里,大家可以看一下)。
[root@wy1 root]# cat /home/httpd/mrtg/103/mrtg.cfg
# Created by
# /usr/bin/cfgmaker --global 'WorkDir: /home/httpd/mrtg/net' --global 'Options[_]:growright,bits' --ifref=ip [email protected]
### Global Config Options
# for UNIX
# WorkDir: /home/http/mrtg
# or for NT
# WorkDir: c:\mrtgdata
### Global Defaults
# to get bits instead of bytes and graphs growing to the right
# Options[_]: growright, bits
WorkDir: /home/httpd/mrtg/103
Options[_]:growright,bits
Language: chinese
######################################################################
# System: wy1
# Description: Linux wy1 2.4.20-8smp #1 SMP Thu Mar 13 17:45:54 EST 2003 i686
# Contact: Root <[email][email protected][/email]>; (configure /etc/snmp/snmp.local.conf)
# Location: wy1.wuying.com (edit /etc/snmp/snmpd.conf)
######################################################################
### Interface 2 >;>; Descr: 'eth0' | Name: '' | Ip: '192.168.13.103' | Eth: '00-06-5b-19-9d-ea' ###
Target[192.168.13.103_192.168.13.103]: /192.168.13.103:[email protected]:
SetEnv[192.168.13.103_192.168.13.103]: MRTG_INT_IP="192.168.13.103" MRTG_INT_DESCR="eth0"
MaxBytes[192.168.13.103_192.168.13.103]: 1250000
Xsize[192.168.13.103_192.168.13.103]: 300
Ysize[192.168.13.103_192.168.13.103]: 100
#kmg[192.168.13.103_192.168.13.103]: K/s,M/s
#kilo[192.168.13.103_192.168.13.103]: 1024
Title[192.168.13.103_192.168.13.103]: Traffic for eth0 192.168.13.103 -- wy1
PageTop[192.168.13.103_192.168.13.103]: <H1>;Traffic for eth0 192.168.13.103 -- wy1</H1>;
#Options[192.168.13.103_192.168.13.103]: growright,gauge,nopercent
### Interface 3 >;>; Descr: 'eth1' | Name: '' | Ip: '172.16.0.188' | Eth: '00-06-5b-19-9d-e9' ###
Target[192.168.13.103_172.16.0.188]: /172.16.0.188:[email protected]:
SetEnv[192.168.13.103_172.16.0.188]: MRTG_INT_IP="172.16.0.188" MRTG_INT_DESCR="eth1"
Xsize[192.168.13.103_172.16.0.188]: 300
Ysize[192.168.13.103_172.16.0.188]: 100
MaxBytes[192.168.13.103_172.16.0.188]: 1250000
#ShortLegend[192.168.13.103_172.16.0.188]:
#kmg[192.168.13.103_172.16.0.188]: b/s,Kb/s
#kilo[192.168.13.103_172.16.0.188]: 1024
Title[192.168.13.103_172.16.0.188]: Traffic for eth1 172.16.0.188 -- wy1
PageTop[192.168.13.103_172.16.0.188]: <H1>;Traffic for eth1 172.16.0.188 -- wy1</H1>;
#Options[192.168.13.103_172.16.0.188]: growright,gauge,nopercent
###MEM status
Target[wy1_mem]:`snmpwalk -v 1 192.168.13.103 -c public .1.3.6.1.4.1.2021.53 | grep 53.101 | awk -F\" '{print $2}'`
#Targey[wy1_mem]: memTotalReal.0&memAvailReal.0:[email protected]
Xsize[wy1_mem]: 300
Ysize[wy1_mem]: 100
Ytics[wy1_mem]: 7
MaxBytes[wy1_mem]: 1006
Title[wy1_mem]:Memory State of WY1 IP 192.168.13.103 Server
PageTop[wy1_mem]:<H1>;Memory State of WY1 IP 192.168.13.103 Server</H1>;
ShortLegend[wy1_mem]: MB
kmg[wy1_mem]: MB
kilo[wy1_mem]:1024
YLegend[wy1_mem]: Memory Usage
Legend1[wy1_mem]: 可用內存
Legend2[wy1_mem]: 總內存量
Legend3[wy1_mem]: 可用內存
Legend4[wy1_mem]: 總內存量
LegendI[wy1_mem]: 可用內存
LegendO[wy1_mem]: 總內存量
Options[wy1_mem]: growright,gauge,nopercent
###cpu status
Target[wy1_CPU]:`snmpwalk -v 1 192.168.13.103 -c public .1.3.6.1.4.1.2021.54 | grep 54.101 | awk -F\" '{print $2}'`
#Targey[wy1_CPU]: memTotalReal.0&memAvailReal.0:[email protected]
Xsize[wy1_CPU]: 300
Ysize[wy1_CPU]: 100
Ytics[wy1_CPU]: 7
MaxBytes[wy1_CPU]: 100
Title[wy1_CPU]:CPU State of WY1 IP 192.168.13.103 Server
PageTop[wy1_CPU]:<H1>;CPU State of WY1 IP 192.168.13.103 Server</H1>;
ShortLegend[wy1_CPU]:
kmg[wy1_CPU]: %
#kilo[wy1_CPU]:1024
YLegend[wy1_CPU]: CPU Usage
Legend1[wy1_CPU]: 已用CPU:
Legend2[wy1_CPU]: 可用CPU:
LegendI[wy1_CPU]: 已用CPU:
LegendO[wy1_CPU]: 可用CPU:
Options[wy1_CPU]: growright,gauge,nopercent
###iostat
###cpu status
Target[wy1_IO]:`snmpwalk -v 1 192.168.13.103 -c public .1.3.6.1.4.1.2021.55 | grep 55.101 | awk -F\" '{print $2}'`
#Targey[wy1_IO]: memTotalReal.0&memAvailReal.0:[email protected]
Xsize[wy1_IO]: 300
Ysize[wy1_IO]: 100
Ytics[wy1_IO]: 7
MaxBytes[wy1_IO]: 10000
Title[wy1_IO]: DISK IO State of WY1 IP 192.168.13.103 Server
PageTop[wy1_IO]:<H1>;DISK IO State of WY1 IP 192.168.13.103 Server</H1>;
ShortLegend[wy1_IO]:
kmg[wy1_IO]: K/s,M/s
kilo[wy1_IO]:1024
YLegend[wy1_IO]: DISK IO SPEED
Legend1[wy1_IO]: IO速度:
Legend2[wy1_IO]: IO速度:
LegendI[wy1_IO]: IO速度:
LegendO[wy1_IO]: IO速度:
Options[wy1_IO]: growright,gauge,nopercent
用indexmaker -o /home/httpd/mrtg/103/index.html /home/httpd/mrtg/103/mrtg.cfg 生成網頁,在crontab 中加入*/5 * * * * mrtg /home/httpd/mrtg/103/mrtg.cfg
OK,這樣我們就能通過mrtg生成的圖來監控我們linux的機器的狀態了。在IE中打入[url]http://192.168.13.105/mrtg/103[/url],mrtg的監控網頁就出來啦(/home/httpd/是我appache的主目錄)。當然我們也能用snmpwalk命令來得到安裝有snmp服務的win2000機器的狀態的數據:
如:
[root@wy1 103]# snmpwalk -v 1 192.168.1.5 -c public HOST-RESOURCES-MIB::hrStorage
HOST-RESOURCES-MIB::hrMemorySize.0 = INTEGER: 3800424 KBytes
HOST-RESOURCES-MIB::hrStorageIndex.1 = INTEGER: 1
HOST-RESOURCES-MIB::hrStorageIndex.2 = INTEGER: 2
HOST-RESOURCES-MIB::hrStorageIndex.3 = INTEGER: 3
HOST-RESOURCES-MIB::hrStorageIndex.4 = INTEGER: 4
HOST-RESOURCES-MIB::hrStorageIndex.5 = INTEGER: 5
HOST-RESOURCES-MIB::hrStorageIndex.6 = INTEGER: 6
HOST-RESOURCES-MIB::hrStorageType.1 = OID: HOST-RESOURCES-TYPES::hrStorageRemovableDisk
HOST-RESOURCES-MIB::hrStorageType.2 = OID: HOST-RESOURCES-TYPES::hrStorageFixedDisk
HOST-RESOURCES-MIB::hrStorageType.3 = OID: HOST-RESOURCES-TYPES::hrStorageFixedDisk
HOST-RESOURCES-MIB::hrStorageType.4 = OID: HOST-RESOURCES-TYPES::hrStorageFixedDisk
HOST-RESOURCES-MIB::hrStorageType.5 = OID: HOST-RESOURCES-TYPES::hrStorageCompactDisc
HOST-RESOURCES-MIB::hrStorageType.6 = OID: HOST-RESOURCES-TYPES::hrStorageVirtualMemory
HOST-RESOURCES-MIB::hrStorageDescr.1 = STRING: A:\
HOST-RESOURCES-MIB::hrStorageDescr.2 = STRING: C:\ Label: Serial Number 581e89fe
HOST-RESOURCES-MIB::hrStorageDescr.3 = STRING: D:\ Label:New Volume Serial Number 1cde6e55
HOST-RESOURCES-MIB::hrStorageDescr.4 = STRING: E:\ Label:DATA_BAK Serial Number 30d29147
HOST-RESOURCES-MIB::hrStorageDescr.5 = STRING: F:\
HOST-RESOURCES-MIB::hrStorageDescr.6 = STRING: Virtual Memory
HOST-RESOURCES-MIB::hrStorageAllocationUnits.1 = INTEGER: 0 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.2 = INTEGER: 4096 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.3 = INTEGER: 4096 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.4 = INTEGER: 4096 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.5 = INTEGER: 0 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.6 = INTEGER: 65536 Bytes
HOST-RESOURCES-MIB::hrStorageSize.1 = INTEGER: 0
HOST-RESOURCES-MIB::hrStorageSize.2 = INTEGER: 2050287
HOST-RESOURCES-MIB::hrStorageSize.3 = INTEGER: 15703529
HOST-RESOURCES-MIB::hrStorageSize.4 = INTEGER: 53263499
HOST-RESOURCES-MIB::hrStorageSize.5 = INTEGER: 0
HOST-RESOURCES-MIB::hrStorageSize.6 = INTEGER: 89444
HOST-RESOURCES-MIB::hrStorageUsed.1 = INTEGER: 0
HOST-RESOURCES-MIB::hrStorageUsed.2 = INTEGER: 1233681
HOST-RESOURCES-MIB::hrStorageUsed.3 = INTEGER: 591593
HOST-RESOURCES-MIB::hrStorageUsed.4 = INTEGER: 23583930
HOST-RESOURCES-MIB::hrStorageUsed.5 = INTEGER: 0
HOST-RESOURCES-MIB::hrStorageUsed.6 = INTEGER: 50611
HOST-RESOURCES-MIB::hrStorageAllocationFailures.1 = Counter32: 0
HOST-RESOURCES-MIB::hrStorageAllocationFailures.2 = Counter32: 0
HOST-RESOURCES-MIB::hrStorageAllocationFailures.3 = Counter32: 0
HOST-RESOURCES-MIB::hrStorageAllocationFailures.4 = Counter32: 0
HOST-RESOURCES-MIB::hrStorageAllocationFailures.5 = Counter32: 0
HOST-RESOURCES-MIB::hrStorageAllocationFailures.6 = Counter32: 0
上面顯示的是192.168.1.5這臺win2000SERVER的磁盤信息,可以看到盤符、每個分區的空間總量、使用量等。其它的相應建值還有:
Diskused: HOST-RESOURCES-MIB::hrStorageUsed
CPU: HOST-RESOURCES-MIB::hrProcessorLoad
RUN Proc: HOST-RESOURCES-MIB::hrSWRunName
SYS Uptime: HOST-RESOURCES-MIB::hrSystemUptime SNMPv2-MIB::sysUpTime
SYS Date: HOST-RESOURCES-MIB::hrSystemDate
SYS Device: HOST-RESOURCES-MIB::hrDeviceDescr
SYS Descr: SNMPv2-MIB::sysDescr
SYS Name: SNMPv2-MIB::sysName
netcard speed: IF-MIB::ifSpeed
netcard physcal address: IF-MIB::ifPhysAddress
這樣我們就可以用一臺linux主機通過snmp+mrtg來監控多臺局域網內的linux/win2000SERVER了:)。
現在我最關心的是如何讓snmp包穿過防火牆,(我用snmpwalk試了一下,抓不到公司在IDC防火牆後的SERVER的snmp數據)。不然,我就可以用snmp去監控公司在IDC防火牆後的SERVER的狀態了。聽說perl能實現,但不知用什麼樣的方法來實現?
[ 本帖最後由 llzqq 於 2005-12-9 19:52 編輯 ]
platinum 回覆於:2004-01-15 07:57:28
我喜歡這種精神,我給你頂:)
zor 回覆於:2004-01-15 11:50:55
到 perl CPAN 查找 Net-SSH-Perl 這個包就可以實現加密穿過防火牆了。
[url]www.cpan.org[/url]
我用過這個,很好用。
lyking 回覆於:2004-01-15 12:00:49
支持樓主,頂
我愛臭豆腐 回覆於:2004-01-15 12:01:57
好文章支持:)
redeyes 回覆於:2004-01-22 04:08:42
as root,
1) edit /etc/snmp/snmpd.conf, and add the following:
rocommunity public
2) then, in the section "process checks", edit
#proc mountd
to
proc httpd ( if you want to monitor httpd processes)
or
proc java ( if you want to monitor java processes)
3) then, in section "disk checks", edit/add
disk /
disk /var
( to monitor / and /var partitions)
4) restart SNMP daemon
# /etc/rc.d/init.d/snmpd restart
5) now, SNMP is running with a read-only community string of public to answer snmp queries
嘿嘿,×××貼就送給你了,,,要請客給紅包的
q1208c 回覆於:2004-01-22 08:59:24
鼓勵一下。
zhangweibo 回覆於:2004-03-08 20:51:54
snmpwalk -v 1 ip地址 -c public system
顯示如下錯誤
Timeout: No Response from 210.51.0.123
服務確信起來,沒有防火牆,配置跟上面一摸一樣,爲什麼?
牙齒曬太陽 回覆於:2004-09-28 11:34:28
snmpwalk
command not found
zd724 回覆於:2004-09-29 00:38:17
ding
78020281 回覆於:2004-10-29 13:22:40
snmp 是161端口,防火牆有沒有過濾這個端口? 或者使用防火牆映射到別的端口上呢?
ijimp 回覆於:2005-07-08 14:58:03
我是深圳一菜鳥,現在要用net snmp,eagerlinuxer可否留個email或者是電話聯繫。急需你的幫助。謝謝
海鷹 回覆於:2005-10-27 11:45:30
引用:原帖由 "platinum"]我喜歡這種精神,我給你頂:)
發表:
ssssssssss :evil: :twisted:
phpcool 回覆於:2005-12-08 11:09:32
[root@dbserver sh]# snmpwalk -v 1 localhost -c public .1.3.6.1.4.1.2021.57
UCD-SNMP-MIB::ucdavis.57.1.1 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.57.2.1 = STRING: "cpustat"
UCD-SNMP-MIB::ucdavis.57.3.1 = STRING: "/bin/sh /home/Linux/mrtg/sh/cpustat.sh"
UCD-SNMP-MIB::ucdavis.57.100.1 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.57.102.1 = INTEGER: 0
UCD-SNMP-MIB::ucdavis.57.103.1 = ""
奇怪,我得到的數據是這樣的!怎麼回事。。。。。
phpcool 回覆於:2005-12-08 12:48:42
頂一下。
phpcool 回覆於:2005-12-08 21:21:26
實在找不出問題所在.做過的進來看看..............
phpcool 回覆於:2005-12-09 18:18:26
機子上安裝snmp的都可以試試.!一起討論.
llzqq 回覆於:2005-12-09 19:54:42
發貼是記得禁用表情,不然滿篇都是笑臉
phpcool 回覆於:2005-12-10 22:37:41
改成rh9就OK了。現在用的fc3就是不行。大家分析一下是什麼問題。難道高版本配製上有什麼特殊的要求。
xy-coordinate 回覆於:2005-12-23 16:19:48
1.RH9 192.168.167.167
引用:[root@localhost root]# rpm -qa net-snmp
net-snmp-5.0.6-17
[root@localhost root]# snmpwalk -v 1 192.168.167.68 -c public .1.3.6.1.4.1.2021.53
-bash: snmpwalk: command not found
2.RH8.2 192.168.167.68
引用:[root@localhost root]# rpm -qa net-snmp
net-snmp-5.0.1-6
[root@localhost root]# snmpwalk -v 1 192.168.167.167 -c public .1.3.6.1.4.1.2021.53
Timeout: No Response from 192.168.167.167
PS:
防火牆都關閉了!
RH8與RH9都能互相ping通!!!
都service snmpd start
:em12::em12::em12:
爲什麼呀???
[ 本帖最後由 xy-coordinate 於 2005-12-23 16:40 編輯 ]
zxpxyz 回覆於:2006-02-07 15:21:56
-bash: snmpwalk: command not found 是因爲snmpwalk需要安裝額外的軟件包 net-snmp-utils
Timeout: No Response 是因爲以下4種原因:1、安全映射名(還有別的叫法,反正默認的就是public)。2、防火牆。3、系統沒有啓動服務。4、您自己寫的蒐集狀態的腳本運行時間較長。第四種原因還沒有證實,目前我碰到的情況應該就是第四種。
PS 多長時間就算超時?
[ 本帖最後由 zxpxyz 於 2006-2-7 15:23 編輯 ]
xujian200412 回覆於:2006-03-01 10:46:23
兄弟,太感謝你了,正好有用!:D:em02:
9394952 回覆於:2006-05-30 13:59:01
已按此文成功配置多臺RH8.RH9的監控了。謝樓主
langhaihhu 回覆於:2006-12-18 10:33:14
在局域網中能實現遠程監控嗎?我按照樓主的配置了,監控時確出現Timeout: No Response 。
hhxxttxs 回覆於:2007-08-10 19:44:18
真是好東西,我把我的服務器給弄好了,可以檢測到好多數據了,呵呵!
123freebird 回覆於:2007-08-13 10:23:17
snmp用的 是udp161端口
Kobe520 回覆於:2007-08-28 11:51:32
我是個新手,現在要爲公司做網絡監控系統,在網上搜到了你的文檔,認真的看了下覺得你寫的跟我要做的差不多極其佩服欣賞你的才能,並按照此文檔在服務器上配置了,但是出現了這些問題不知道是什麼原因了,請樓主務必幫忙解決下!!!
我的郵箱是:[email][email protected][/email]
我的目標主機腳本是:[root@synchronizer snmp]# cat cpustat.sh
#!/bin/sh
idle=`sar -u 1 3 | grep Average | awk '{print $6}'`
used=`echo "101 - $idle" | bc -l -s`
echo $used
echo $idle
[root@synchronizer snmp]# sh cpustat.sh
97.50
3.50
[root@synchronizer snmp]# cat iostat.sh
#!/bin/sh
used1=`sar -d 1 3 | tail -1 | awk '{print $4}'`
used2=`echo "$used1 / 2" | bc -l`
echo $used2
echo $used2
[root@synchronizer snmp]# sh iostat.sh
0
0
[root@synchronizer snmp]# sh mfree.sh
11
2026
[root@synchronizer snmp]# cat mfree.sh
#!/bin/sh
/usr/bin/free -m | grep Mem |awk '{print $4}'
/usr/bin/free -m | grep Mem |awk '{print $2}
目標snmp文件添加了:
exec .1.3.6.1.4.1.2021.53 mfree /bin/sh /etc/snmp/mfree.sh
exec .1.3.6.1.4.1.2021.54 cpustat /bin/sh /etc/snmp/cpustat.sh
exec .1.3.6.1.4.1.2021.55 iostat /bin/sh /etc/snmp/iostat.sh
我的監控機器用“snmpwalk"命令去抓取目標機器上腳本的數據:
[root@source snmp]# snmpwalk -v 1 192.168.0.218 -c public system
[root@source snmp]# snmpwalk -v 1 192.168.0.218 -c public system
SNMPv2-MIB::sysDescr.0 = STRING: Linux synchronizer 2.6.8-1.521smp #1 SMP Mon Aug 16 09:25:06 EDT 2004 i686
SNMPv2-MIB::sysObjectID.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10
SNMPv2-MIB::sysUpTime.0 = Timeticks: (13234) 0:02:12.34
SNMPv2-MIB::sysContact.0 = STRING: Root <root@localhost> (configure /etc/snmp/snmp.local.conf)
SNMPv2-MIB::sysName.0 = STRING: synchronizer
SNMPv2-MIB::sysLocation.0 = STRING: Unknown (edit /etc/snmp/snmpd.conf)
SNMPv2-MIB::sysORLastChange.0 = Timeticks: (1) 0:00:00.01
SNMPv2-MIB::sysORID.1 = OID: IF-MIB::ifMIB
SNMPv2-MIB::sysORID.2 = OID: SNMPv2-MIB::snmpMIB
SNMPv2-MIB::sysORID.3 = OID: TCP-MIB::tcpMIB
SNMPv2-MIB::sysORID.4 = OID: IP-MIB::ip
SNMPv2-MIB::sysORID.5 = OID: UDP-MIB::udpMIB
SNMPv2-MIB::sysORID.6 = OID: SNMP-VIEW-BASED-ACM-MIB::vacmBasicGroup
SNMPv2-MIB::sysORID.7 = OID: SNMP-FRAMEWORK-MIB::snmpFrameworkMIBCompliance
SNMPv2-MIB::sysORID.8 = OID: SNMP-MPD-MIB::snmpMPDCompliance
SNMPv2-MIB::sysORID.9 = OID: SNMP-USER-BASED-SM-MIB::usmMIBCompliance
SNMPv2-MIB::sysORDescr.1 = STRING: The MIB module to describe generic objects for network interface sub-layers
SNMPv2-MIB::sysORDescr.2 = STRING: The MIB module for SNMPv2 entities
SNMPv2-MIB::sysORDescr.3 = STRING: The MIB module for managing TCP implementations
SNMPv2-MIB::sysORDescr.4 = STRING: The MIB module for managing IP and ICMP implementations
SNMPv2-MIB::sysORDescr.5 = STRING: The MIB module for managing UDP implementations
SNMPv2-MIB::sysORDescr.6 = STRING: View-based Access Control Model for SNMP.
SNMPv2-MIB::sysORDescr.7 = STRING: The SNMP Management Architecture MIB.
SNMPv2-MIB::sysORDescr.8 = STRING: The MIB for Message Processing and Dispatching.
SNMPv2-MIB::sysORDescr.9 = STRING: The management information definitions for the SNMP User-based Security Model.
SNMPv2-MIB::sysORUpTime.1 = Timeticks: (0) 0:00:00.00
SNMPv2-MIB::sysORUpTime.2 = Timeticks: (0) 0:00:00.00
SNMPv2-MIB::sysORUpTime.3 = Timeticks: (0) 0:00:00.00
SNMPv2-MIB::sysORUpTime.4 = Timeticks: (0) 0:00:00.00
SNMPv2-MIB::sysORUpTime.5 = Timeticks: (0) 0:00:00.00
SNMPv2-MIB::sysORUpTime.6 = Timeticks: (0) 0:00:00.00
SNMPv2-MIB::sysORUpTime.7 = Timeticks: (1) 0:00:00.01
SNMPv2-MIB::sysORUpTime.8 = Timeticks: (1) 0:00:00.01
SNMPv2-MIB::sysORUpTime.9 = Timeticks: (1) 0:00:00.01
[root@source snmp]#snmpwalk -v 1 192.168.0.218 -c public .1.3.6.1.4.1.2021.53 (下面是我內存的數據,可以正常抓取到)
UCD-SNMP-MIB::ucdavis.53.1.1 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.53.2.1 = STRING: "mfree"
UCD-SNMP-MIB::ucdavis.53.3.1 = STRING: "/bin/sh /etc/snmp/mfree.sh"
UCD-SNMP-MIB::ucdavis.53.100.1 = INTEGER: 0
UCD-SNMP-MIB::ucdavis.53.101.1 = STRING: "25"
UCD-SNMP-MIB::ucdavis.53.101.2 = STRING: "2026"
UCD-SNMP-MIB::ucdavis.53.102.1 = INTEGER: 0
UCD-SNMP-MIB::ucdavis.53.103.1 = ""
[root@source snmp]# snmpwalk -v 1 192.168.0.218 -c public .1.3.6.1.4.1.2021.54 (問題出現在CPU這了,抓到一半沒有數據返回,並提示”Timeout: No Response from 192.168.0.218“不知道什麼原因了?????哪位高手如果知道的話請給個提示,是不是我目標機器上腳本的問題,但我用SH打開它時又能正常顯示數據,真是奇怪了!!!!是不是還有別的問題????????)
UCD-SNMP-MIB::ucdavis.54.1.1 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.54.2.1 = STRING: "cpustat"
UCD-SNMP-MIB::ucdavis.54.3.1 = STRING: "/bin/sh /etc/snmp/cpustat.sh"
UCD-SNMP-MIB::ucdavis.54.100.1 = INTEGER: 0
Timeout: No Response from 192.168.0.218
[root@source snmp]# snmpwalk -v 1 192.168.0.218 -c public .1.3.6.1.4.1.2021.55 (同樣的,我的DISK也跟CPU一樣無法抓取數據只有內存能正常抓取到)
UCD-SNMP-MIB::ucdavis.55.1.1 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.55.2.1 = STRING: "iostat"
UCD-SNMP-MIB::ucdavis.55.3.1 = STRING: "/bin/sh /etc/snmp/iostat.sh"
UCD-SNMP-MIB::ucdavis.55.100.1 = INTEGER: 0
Timeout: No Response from 192.168.0.218
防火牆和SNMP服務都起來了,確定擁有權限!