Setup configuration for SNMP

How to setup monitoring using BangDB for SNMP V3

RedHat / CentOS

1. Install RPM
// For RedHat
sudo yum install net-snmp-utils net-snmp

// For CentOS
yum install net-snmp-utils net-snmp-libs

2. Open Port 161

Ensure that port 161 is open and snmp service is added.

sudo firewall-cmd --zone=public --add-service snmp

3. Stop snmpd service
sudo service snmpd stop

4. Create snmp v3 user
sudo net-snmp-create-v3-user -ro -A myauthpass -X myprivpass -a SHA -x AES bangdbuser

5. Start the service
sudo service snmpd start

// Or you may use these as well
sudo systemctl restart snmpd
sudo systemctl enable snmpd

6. Test locally
snmpwalk -v3 -u bangdbuser -A myauthpass -a SHA -X myprivpass -x AES -l authPriv 127.0.0.1

7. Test remotely

Now using the right IP address of the server where we just configured the snmp, if you get Timeout then it means the port 161 is not open.

snmpwalk -v3 -u bangdbuser -A myauthpass -a SHA -X myprivpass -x AES -l authPriv 34.12.34.98

Ubuntu / Debian

1. Install libraries
sudo apt-get install snmp snmpd libsnmp-dev

2. Stop the services
sudo service snmpd stop

3. Add v3 user
sudo net-snmp-create-v3-user -ro -A myauthpass -X myprivpass -a SHA -x AES bangdbuser

Edit the file /etc/snmp/snmpd.conf and comment out as shown, then add the line as highlighted below

sudo vim /etc/snmp/snmpd.conf

#  Listen for connections from the local system only - COMMENT THIS
   agentAddress  udp:127.0.0.1:161

#  Listen for connections on all interfaces (both IPv4 *and* IPv6)
   agentAddress udp:161,udp6:[::1]:161,tcp:161,tcp6:[::1]:161

4. Install necessary MIBs
sudo apt-get install snmp-mibs-downloader
sudo download-mibs
sudo sed -i 's/mibs :/# mibs :/g' /etc/snmp/snmp.conf

Edit the snmpd.conf file and add following [ sudo vim /e etc/snmp/snmpd.conf] includeAllDisks 10% for all partitions and disks

5. Start the service
sudo service snmpd start

# Or you may use these as well

sudo systemctl restart snmpd
sudo systemctl enable snmpd

6. Test locally
snmpwalk -v3 -u bangdbuser -A myauthpass -a SHA -X myprivpass -x AES -l authPriv 127.0.0.1

7. Test remotely

Now using the right IP address of the server where we just configured the snmp, if you get Timeout then it means the port 161 is not open

snmpwalk -v3 -u bangdbuser -A myauthpass -a SHA -X myprivpass -x AES -l authPriv 34.12.34.98

How to setup monitoring using BangDB for SNMP V1/2

RedHat/ CentOS

1. Install snmp
// For RedHat
sudo yum install net-snmp-utils net-snmp

// For CentOS
yum install net-snmp-utils net-snmp-libs

Edit the /etc/snmp/snmpd.conf and add following

rocommunity bangdb

mv /etc/snmp/snmpd.conf /etc/snmp/snmpd.conf.old

rocommunity <CommunityString>

2. Start the service
sudo service snmpd start

# Or you may use these as well

sudo systemctl restart snmpd
sudo systemctl enable snmpd

Ubuntu / Debian

1. Install snmp
sudo apt-get install snmpd

Edit the /etc/snmp/snmpd.conf and add following

rocommunity bangdb

mv /etc/snmp/snmpd.conf /etc/snmp/snmpd.conf.old

rocommunity <CommunityString>

2. Edit the snmpd file and do following :

Comment out following line or similar

SNMPDOPTS='-Lsd -Lf /dev/null -u snmp -p /var/run/snmpd.pid'

Add the following like

SNMPDOPTS='-Lsd -Lf /dev/null -u snmp -I -smux -p /var/run/snmpd.pid -c /etc/snmp/snmpd.conf'

3. Install necessary MIBs
sudo apt-get install snmp-mibs-downloader
sudo download-mibs
sudo sed -i 's/mibs :/# mibs :/g' /etc/snmp/snmp.conf

Edit snmpd.conf file and add

includeAllDisks 10% for all partitions and disks

4. Start the service
sudo service snmpd start

# Or you may use these as well

sudo systemctl restart snmpd
sudo systemctl enable snmpd