Difference between revisions of "Simple Network Management Protocol"
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= SNMP = | = SNMP = | ||
SNMP is among the blackest of magical arts. | SNMP is among the blackest of magical arts.<br> | ||
<br> | |||
'''Changes to the configs are not committed until clean restart or SIGHUP!'''<br> | |||
== v3 User Management == | == v3 User Management == | ||
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<code>snmpusm [auth options] localhost delete <targetuser></code><br> | <code>snmpusm [auth options] localhost delete <targetuser></code><br> | ||
<br> | <br> | ||
== v2c Communities == | |||
/etc/snmp/snmpd.conf: | |||
<code>rocommunity PASSPHRASE [SOURCE_IP]</code><br> | |||
<code>rwcommunity PASSPHRASE [SOURCE_IP]</code><br> | |||
== Take a Walk== | |||
<code>snmpwalk -v2c -c PASSPHRASE TARGET_IP</code><br> | |||
<code>snmpwalk -v3 -l priv -u <user> -a <authmode> -A <authpass> -x <encrmode> -X <encrpass> TARGET_IP</code><br> | |||
Revision as of 18:40, 16 October 2024
SNMP
SNMP is among the blackest of magical arts.
Changes to the configs are not committed until clean restart or SIGHUP!
v3 User Management
Create
net-snmp-create-v3-user -a <authmode> -A <authpass> -x <encrmode> -X <encrpass> <firstuser>
net-snmp-create-v3-user -a SHA-512 -A 12345678 -x AES128 -X 12345678 default
Clone
snmpusm -v3 -l priv -u <firstuser> -a <authmode> -A <authpass> -x <encrmode> -X <encrpass> localhost create <template>
snmpusm -v3 -l priv -u default -x SHA-512 -X 12345678 -a AES128 -A 12345678 localhost create template
snmpusm -v3 -l priv -u <template> -a <authmode> -A <authpass> -x <encrmode> -X <encrpass> localhost create <newuser> <clonefrom>
snmpusm -v3 -l priv -u template -x SHA-512 -X 12345678 -a AES128 -A 12345678 localhost create newuser template
Test
Add new users to /etc/snmp/snmpd.conf:
rouser <username>
rwuser <username>
snmpstatus -v3 -l priv -u <username> -a <authmode> -A <authpass> -x <encrmode> -X <encrpass> localhost
Change Passwords
Auth:
snmpusm -v3 -l priv -u <user> -a <authmode> -A <authpass> -x <encrmode> -X <encrpass> -Ca localhost passwd <oldauthpass> <newauthpass> <user>
Encr:
snmpusm -v3 -l priv -u <user> -a <authmode> -A <authpass> -x <encrmode> -X <encrpass> -Cx localhost passwd <oldencrpass> <newencrpass> <user>
Delete
snmpusm [auth options] localhost delete <targetuser>
v2c Communities
/etc/snmp/snmpd.conf:
rocommunity PASSPHRASE [SOURCE_IP]
rwcommunity PASSPHRASE [SOURCE_IP]
Take a Walk
snmpwalk -v2c -c PASSPHRASE TARGET_IP
snmpwalk -v3 -l priv -u <user> -a <authmode> -A <authpass> -x <encrmode> -X <encrpass> TARGET_IP