Useful Commands/System Status: Difference between revisions

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| 觀察 CPU 使用狀態,每個 core 數據分開 ||
| Cet CPU usage by core. ||
<syntaxhighlight lang="bash">
<syntaxhighlight lang="bash">
vmstat -P 1    # FreeBSD
vmstat -P 1    # FreeBSD
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| 取得 SNMP v3 資訊<br/>(認證與傳輸都加密) ||
| Get info of SNMP v3 with encryption ||
<syntaxhighlight lang="bash">
<syntaxhighlight lang="bash">
snmpwalk -v 3 -l authPriv -u ${USERNAME} \
snmpwalk -v 3 -l authPriv -u ${USERNAME} \
   -a SHA -A ${PASSWORD} \ # 密碼加密方式與密碼 (摘要演算法)
   -a SHA -A ${PASSWORD} \ # hash
   -x AES -X random123 \ # 傳輸加密方式與密鑰 (對稱加密演算法)
   -x AES -X random123 \   # cipher
   ${HOST} \
   ${HOST} \
   ${OID}
   ${OID}
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[http://www.alvestrand.no/objectid/top.html OID 查詢系統]
[http://www.alvestrand.no/objectid/top.html OID Query]
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|-
| 取得 SNMP v2 資訊 ||
| Get info of SNMP v2 ||
<syntaxhighlight lang="bash">
<syntaxhighlight lang="bash">
snmpwalk -v2c -cpublic 192.168.93.172 system
snmpwalk -v2c -cpublic 192.168.93.172 system
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Latest revision as of 03:56, 22 July 2026

Purpose Command
Get Ubuntu version
lsb_release -a
Cet CPU usage by core.
vmstat -P 1     # FreeBSD
mpstat -P ALL 1 # Linux
Get info of SNMP v3 with encryption
snmpwalk -v 3 -l authPriv -u ${USERNAME} \
   -a SHA -A ${PASSWORD} \ # hash
   -x AES -X random123 \   # cipher
   ${HOST} \
   ${OID}

OID Query

Get info of SNMP v2
snmpwalk -v2c -cpublic 192.168.93.172 system