* SNMP
1. snmpd 다운로드 및 설치
# apt-get install snmp-mibs-downloader snmp snmpd |
2. snmpd.conf 설정
# cp /etc/snmp/snmpd.conf /etc/snmp/snmpd.conf.orig # vi /etc/snmp/snmpd.conf |
(centos)
41: com2sec not ConfigUser default COMMUNITY |
(ubuntu)
15: #agentAddress udp:127.0.0.1:161 17: agentAddress udp:161,udp6:[::1]:161 |
3. MIB의 모든 정보 가져오기
# snmpwalk -v2c -c COMMUNITY HOST SNMPv2-MIB::sysDescr.0 = STRING: Linux dev 3.10.0-514.2.2.el7.x86_64 #1 SMP Tue Dec 6 23:06:41 UTC 2016 x86_64 |
4. snmpget으로 MIB Instance 가져오기
# snmpget -v2c -c COMMUNITY HOST sysContact.0 SNMPv2-MIB::sysContact.0 = STRING: Root <root@localhost> (configure /etc/snmp/snmp.local.conf) SNMPv2-MIB::sysContact = No Such Instance currently exists at this OID |
5. snmpgetnext로 MIB Instance 가져오기
# snmpgetnext -v2c -c COMMUNITY HOST sysContact.0 SNMPv2-MIB::sysName.0 = STRING: dev # snmpgetnext -v2c -c COMMUNITY HOST sysContact SNMPv2-MIB::sysContact.0 = STRING: Root <root@localhost> (configure /etc/snmp/snmp.local.conf) |
6. tcpdump 확인
# tcpdump -i eth0 -vvv -A -T snmp -s 0 dst port 162 or dst port 161 |
참조: 9C/http://blog.alghost.co.kr/snmp-%EB%9E%80-%EA%B0%84%EB%8B%A8%ED%95%9C-%EB%84%A4%ED%8A%B8%EC%9B%8C%ED%81%AC-%EA%B4%80%EB%A6%AC-%ED%94%84%EB%A1%9C%ED%86%A0%EC%BD%9C/
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