HackMD
LibreNMS
- 從 ICMP 做裝置是否連線中的檢測
- 以 SNMP 進行較深的資料採集，進一步安裝 Agent 可以取得作業系統發行版本資訊等更詳細的資訊。
- 針對特定的應用提供了 Application 功能來對應的效能數據擷取方式
- 在不同服務的狀況監控則使用名為 Service 的機制去監視各個服務的運作狀態
- 可以相容 Nagios 的 Plugin 做更多的擴充
LibreNMS
- Download
- VM Image Info
- WebUI (http://localhost:8080)
- username: librenms
- password: D32fwefwef
- SSH (ssh://localhost:2023)
- username: librenms
- password: CDne3fwdfds
- MySQL/MariaDB
- username: librenms
- password: D42nf23rewD
- WebUI (http://localhost:8080)
SOP of Manual Install(skip)
SOP of Setup
Setup on devices
- How to Configure SNMP Community Strings in Debian/Ubuntu
Enter this command to install the snmpd package:
Apt.get install snmpd
Locate the snmp.conf file and back it up:
Mv /etc/snmp/snmpd/conf /etc/snmp/snmpd.conf.org
Enter the following, replacing “blank” with the community string you are using, to create the new snmpd.conf file:
Echo “rocommunity blank”>/etc/snmp/snmpd.conf
Modify the file:
Nano /etc/default/snmpd
Locate and comment out the following:
SNMPSDOPTS=‘ -lsd -Lf dev/null -u snmp -p /var/run/snmpd.pid’
Add this line:
SNMPDOPTS=‘ -Lsd -Lf /dev/null -u snmp -I -smux -p /var/run/snmpd/pid -c /etc/snmp/snmpd/conf’
Save and close the file.
Enter this to restart the snmpd:
/etc/init.d/snmpd restart
sysv-rc-conf snmpd on
Adding Devices
CLI
- Change directory to
/opt/librenmsThis is the location where LibreNMS installed.
./lnms device:add [--v1|--v2c] [-c yourSNMPcommunity] yourhostname
./lnms device:add --help
Description:
Add a new device
Usage:
device:add [options] [--] <device spec>
Arguments:
device spec Hostname or IP to add
Options:
--v1 Use SNMP v1
--v2c Use SNMP v2c
--v3 Use SNMP v3
-f, --force Just add the device, do n ot make any safety checks
-g, --group[=GROUP] Poller group (for distrib uted polling)
-b, --ping-fallback Add the device as ping on ly if it does not respond to SNMP
-p, --port-association-mode[=PORT-ASSOCIATION-MODE] Sets how ports are mapped [ifIndex, ifName, ifDescr, ifAlias], ifName is suggested for Linux/Unix [defaul t: "ifIndex"]
-c, --community[=COMMUNITY] SNMP v1 or v2 community
-t, --transport[=TRANSPORT] Transport to connect to t he device [udp, udp6, tcp, tcp6] [default: "udp"]
-r, --port[=PORT] SNMP transport port [defa ult: "161"]
-u, --security-name[=SECURITY-NAME] SNMPv3 security username [default: "root"]
-A, --auth-password[=AUTH-PASSWORD] SNMPv3 authentication pas sword
-a, --auth-protocol[=AUTH-PROTOCOL] SNMPv3 authentication pro tocol [md5, sha, sha-512, sha-384, sha-256, sha-224] [default: "md5"]
-x, --privacy-protocol[=PRIVACY-PROTOCOL] SNMPv3 privacy protocol [ des, aes] [default: "aes"]
-X, --privacy-password[=PRIVACY-PASSWORD] SNMPv3 privacy password
-P, --ping-only Add a ping only device
-o, --os[=OS] Ping only: specify OS [de fault: "ping"]
-w, --hardware[=HARDWARE] Ping only: specify hardwa re
-s, --sysName[=SYSNAME] Ping only: specify sysNam e
-h, --help Display help for the give n command. When no command is given display help for the list command
-q, --quiet Do not output any message
-V, --version Display this application version
--ansi Force ANSI output
--no-ansi Disable ANSI output
-n, --no-interaction Do not ask any interactiv e question
--env[=ENV] The environment the comma nd should run under
-v|vv|vvv, --verbose Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug
