checkMK

https://www.youtube.com/@checkmk-channel/videos

https://www.youtube.com/watch?v=opO-SOgOJ1I
https://www.youtube.com/watch?v=b4B4x417OQM

# w!get https://download.checkmk.com/checkmk/2.2.0p1/check-mk-raw-2.2.0p1_0.kinetic_amd64.deb

# ls -al

# sudo apt install libevent-dev

# sudo apt install ./check-mk-raw-2.2.0p1_0.kinetic_amd64.deb

# sudo omd create rosehosting

# omd start rosehosting

# sudo apt update -y && sudo apt upgrade -y
# apt install python3-pip
# pip3 install docker

# cd /opt

# w!get https://download.checkmk.com/checkmk/2.1.0p2/check-mk-free-2.1.0p2_0.jammy_amd64.deb

# sudo apt install ./check-mk-free-2.1.0p2_0.jammy_amd64.deb

# sudo apt-get install -f
# sudo omd create trtest
# sudo omd start trtest

http://lab-master/trtest/

cmkadmin/qModsvkq

# apt install ./check-mk-agent_2.1.0p2-8b82df7b81521ee8_all.deb

—————— > Install SNMP in Ubuntu < ———————–

# sudo apt-get -y install snmp snmpd libsnmp-dev
# sudo service snmpd stop

# sudo net-snmp-config –create-snmpv3-user -ro -A zafar@123 -X CryptoPa$$w0rd -a MD5 -x AES zafims

# vi /etc/snmp/snmpd.conf

Search for “sysLocation” Change it :
Search for “sysContact” Change it :

–> Add a # to the beginning.

#agentAddress udp:127.0.0.1:161

–> and uncomment it

agentAddress udp:161,udp6:[::1]:161

# service snmpd start

–> Test with

# snmpwalk -v3 -a MD5 -A zafar@123 -X CryptoPa$$w0rd -l authNoPriv -u zafims localhost

—————— > Install SNMP in RHEL/CentOS and Cisco < ———————–

# yum install net-snmp-utils net-snmp-devel
# service snmpd stop

# net-snmp-create-v3-user -ro -A zafar@123 -a MD5 -x DES zafims

# service snmpd start

# snmpwalk -u zafims -A zafar@123 -a MD5 -l authnoPriv 192.168.1.2 -v3

# iptables -A INPUT -s 192.168.1.100/32 -p udp –dport 161 -j ACCEPT
# iptables -A INPUT -s 192.168.1.101/32 -p udp –dport 161 -j ACCEPT
# iptables -A INPUT -p udp –dport 161 -j DROP

—> Configure SNMPv3 on Cisco Switches and Routers

## global config mode ##
ip access-list standard SNMP_ACL
permit 192.168.1.100
permit 192.168.1.100

—- global config mode ———————
## With ACL ##
snmp-server group v3Group v3 auth access SNMP_ACL

## Without ACL ##
snmp-server group v3Group v3 auth
————————————————

snmp-server user zafims v3Group v3 auth md5 zafar@123 priv aes 128 zafar@123

–> Testing SNMPv3
### privileged EXEC mode ##
show snmp user

—> in Linux machine

# snmpwalk -u zafims -A zafar@123 -a MD5 -l authnoPriv 192.168.1.3 -v3