SNMP - Configure SNMP service for Linux : Différence entre versions
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* [https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-an-snmp-daemon-and-client-on-ubuntu-18-04 Configure an SNMP daemon and client on Ubuntu 18.04]. | * [https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-an-snmp-daemon-and-client-on-ubuntu-18-04 Configure an SNMP daemon and client on Ubuntu 18.04]. | ||
* [https://net-snmp.sourceforge.io/docs/README.snmpv3.html net-snmp documentation on SourceForge]. | * [https://net-snmp.sourceforge.io/docs/README.snmpv3.html net-snmp documentation on SourceForge]. | ||
| + | * [https://doc.ubuntu-fr.org/snmp Doc UbuntuFr sur le SNMP]. | ||
| + | * [https://www.loriotpro.com/ServiceAndSupport/How_to/UCD-SNMP_ConfigSNMPv1-v1.2.php Configuration de l’agent SNMP V3 Unix]. | ||
* ... | * ... | ||
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= Install and configure the service = | = Install and configure the service = | ||
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| + | '''Note''': for the moment let's focus on SNMPv3. SNMPv2 should be documented later on. | ||
== Ubuntu / Debian == | == Ubuntu / Debian == | ||
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* snmpd | * snmpd | ||
* libsnmp-dev | * libsnmp-dev | ||
| + | * snmp-mibs-downloader | ||
Dependencies: | Dependencies: | ||
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apt-get install snmpd | apt-get install snmpd | ||
apt-get install libsnmp-dev | apt-get install libsnmp-dev | ||
| + | apt-get install snmp-mibs-downloader | ||
Service stop: | Service stop: | ||
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agentaddress 127.0.0.1,[::1],<IP of your server> | agentaddress 127.0.0.1,[::1],<IP of your server> | ||
... | ... | ||
| + | |||
net-snmp-config --create-snmpv3-user | net-snmp-config --create-snmpv3-user | ||
| + | '''Note regarding the use of MIBS downloader''': to use it, comment the line in ''/etc/snmp/snmp.conf'': | ||
| + | # mibs : | ||
'''Note regarding the user creation''': not sure this behavior is systematic but you may have to add such a line to ''/etc/snmp/snmpd.conf'' for your user to be properly created at service restart. This line may be deleted from ''/etc/snmp/snmpd.conf'' after service restart. | '''Note regarding the user creation''': not sure this behavior is systematic but you may have to add such a line to ''/etc/snmp/snmpd.conf'' for your user to be properly created at service restart. This line may be deleted from ''/etc/snmp/snmpd.conf'' after service restart. | ||
| − | + | createUser username (MD5|SHA|SHA-512|SHA-384|SHA-256|SHA-224) authpassphrase [DES|AES] [privpassphrase] | |
Service start: | Service start: | ||
Version actuelle datée du 7 mars 2023 à 15:33
Sommaire
Introduction
SNMP configuration on Linux may be complex.
Many documentation exist on Internet but they describe so many different methods it makes it difficult to identify THE best way to do it.
This article will try to identify a kind of procedure to install and configure the service.
Useful links
- SNMP et la supervision.
- snmpusm man page.
- Configure an SNMP daemon and client on Ubuntu 18.04.
- net-snmp documentation on SourceForge.
- Doc UbuntuFr sur le SNMP.
- Configuration de l’agent SNMP V3 Unix.
- ...
Useful tools
Install and configure the service
Note: for the moment let's focus on SNMPv3. SNMPv2 should be documented later on.
Ubuntu / Debian
Useful packages:
- snmp
- snmpd
- libsnmp-dev
- snmp-mibs-downloader
Dependencies:
- libsnmp-base
- libsnmp35:amd64
Packages installation:
apt-get install snmp apt-get install snmpd apt-get install libsnmp-dev apt-get install snmp-mibs-downloader
Service stop:
systemctl stop snmpd.service
Service configuration:
vi /etc/snmp/snmpd.conf ... sysLocation <location description> sysContact <your sysops contact> ... agentaddress 127.0.0.1,[::1],<IP of your server> ... net-snmp-config --create-snmpv3-user
Note regarding the use of MIBS downloader: to use it, comment the line in /etc/snmp/snmp.conf:
# mibs :
Note regarding the user creation: not sure this behavior is systematic but you may have to add such a line to /etc/snmp/snmpd.conf for your user to be properly created at service restart. This line may be deleted from /etc/snmp/snmpd.conf after service restart.
createUser username (MD5|SHA|SHA-512|SHA-384|SHA-256|SHA-224) authpassphrase [DES|AES] [privpassphrase]
Service start:
systemctl start snmpd.service
Note: think about allowing flows on the firewall you use on or around the system.
