CentOS7 安裝 LibreNMS

yum install epel-release
rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm
yum install composer cronie fping git ImageMagick jwhois mariadb mariadb-server mtr python36 MySQL-python net-snmp net-snmp-utils nginx nmap php72w php72w-cli php72w-common php72w-curl php72w-fpm php72w-gd php72w-mbstring php72w-mysqlnd php72w-process php72w-snmp php72w-xml php72w-zip python-memcached rrdtool

useradd librenms -d /opt/librenms -M -r
usermod -a -G librenms nginx

:
[Date]
; Defines the default timezone used by the date functions
; http://php.net/date.timezone
date.timezone = Asia/Taipei
:

sync;sync;sync;reboot

cd /opt
composer create-project --no-dev --keep-vcs librenms/librenms librenms dev-master

cd /opt/librenms
./scripts/composer_wrapper.php install --no-dev

systemctl start mariadb
mysql -u root

password 要依照自己需要設定

CREATE DATABASE librenms CHARACTER SET utf8 COLLATE utf8_unicode_ci;
CREATE USER 'librenms'@'localhost' IDENTIFIED BY '**password**';
GRANT ALL PRIVILEGES ON librenms.* TO 'librenms'@'localhost';
FLUSH PRIVILEGES;
exit

vi /etc/my.cnf

[mysqld]
datadir=/var/lib/mysql
:
:
# instructions in http://fedoraproject.org/wiki/Systemd
innodb_file_per_table=1
sql-mode=""
lower_case_table_names=0
:

systemctl enable mariadb
systemctl restart mariadb

vi /etc/php-fpm.d/www.conf

:
;user = apache
user = nginx
; RPM: Keep a group allowed to write in log dir.
group = apache

; The address on which to accept FastCGI requests.
; Valid syntaxes are:
;   'ip.add.re.ss:port'    - to listen on a TCP socket to a specific IPv4 address on
;                            a specific port;
;   '[ip:6:addr:ess]:port' - to listen on a TCP socket to a specific IPv6 address on
;                            a specific port;
;   'port'                 - to listen on a TCP socket to all addresses
;                            (IPv6 and IPv4-mapped) on a specific port;
;   '/path/to/unix/socket' - to listen on a unix socket.
; Note: This value is mandatory.
;listen = 127.0.0.1:9000
listen = /var/run/php-fpm/php7.2-fpm.sock

; Set listen(2) backlog.
; Default Value: 511 (-1 on FreeBSD and OpenBSD)
;listen.backlog = 511

; Set permissions for unix socket, if one is used. In Linux, read/write
; permissions must be set in order to allow connections from a web server. Many
; BSD-derived systems allow connections regardless of permissions.
; Default Values: user and group are set as the running user
;                 mode is set to 0660
;listen.owner = nobody
;listen.group = nobody
;listen.mode = 0660
listen.owner = nginx
listen.group = nginx
listen.mode = 0660

; When POSIX Access Control Lists are supported you can set them using
; these options, value is a comma separated list of user/group names.
:

systemctl enable php-fpm
systemctl restart php-fpm

vi /etc/nginx/conf.d/librenms.conf

server {
 listen      80;
 server_name librenms.example.com;
 root        /opt/librenms/html;
 index       index.php;

 charset utf-8;
 gzip on;
 gzip_types text/css application/javascript text/javascript application/x-javascript image/svg+xml text/plain text/xsd text/xsl text/xml image/x-icon;
 location / {
  try_files $uri $uri/ /index.php?$query_string;
 }
 location /api/v0 {
  try_files $uri $uri/ /api_v0.php?$query_string;
 }
 location ~ \.php {
  include fastcgi.conf;
  fastcgi_split_path_info ^(.+\.php)(/.+)$;
  fastcgi_pass unix:/var/run/php-fpm/php7.2-fpm.sock;
 }
 location ~ /\.ht {
  deny all;
 }
}

systemctl enable nginx
systemctl restart nginx

yum install policycoreutils-python
 
semanage fcontext -a -t httpd_sys_content_t '/opt/librenms/logs(/.*)?'
semanage fcontext -a -t httpd_sys_rw_content_t '/opt/librenms/logs(/.*)?'
restorecon -RFvv /opt/librenms/logs/
semanage fcontext -a -t httpd_sys_content_t '/opt/librenms/rrd(/.*)?'
semanage fcontext -a -t httpd_sys_rw_content_t '/opt/librenms/rrd(/.*)?'
restorecon -RFvv /opt/librenms/rrd/
semanage fcontext -a -t httpd_sys_content_t '/opt/librenms/storage(/.*)?'
semanage fcontext -a -t httpd_sys_rw_content_t '/opt/librenms/storage(/.*)?'
restorecon -RFvv /opt/librenms/storage/
semanage fcontext -a -t httpd_sys_content_t '/opt/librenms/bootstrap/cache(/.*)?'
semanage fcontext -a -t httpd_sys_rw_content_t '/opt/librenms/bootstrap/cache(/.*)?'
restorecon -RFvv /opt/librenms/bootstrap/cache/
setsebool -P httpd_can_sendmail=1
setsebool -P httpd_execmem 1

vi /tmp/http_fping.tt

module http_fping 1.0;

require {
type httpd_t;
class capability net_raw;
class rawip_socket { getopt create setopt write read };
}

#============= httpd_t ==============
allow httpd_t self:capability net_raw;
allow httpd_t self:rawip_socket { getopt create setopt write read };

checkmodule -M -m -o http_fping.mod /tmp/http_fping.tt
semodule_package -o /tmp/http_fping.pp -m http_fping.mod
semodule -i /tmp/http_fping.pp

firewall-cmd --zone public --add-service http
firewall-cmd --permanent --zone public --add-service http
firewall-cmd --zone public --add-service https
firewall-cmd --permanent --zone public --add-service https
<code>
  - 設定 snmpd <code sh>
cp /opt/librenms/snmpd.conf.example /etc/snmp/snmpd.conf
 
vi /etc/snmp/snmpd.conf

將 RANDOMSTRINGGOESHERE 改成你要的 community 字串

# Change RANDOMSTRINGGOESHERE to your preferred SNMP community string
#com2sec readonly  default         RANDOMSTRINGGOESHERE
com2sec readonly  default         **community_string**
:
#syslocation Rack, Room, Building, City, Country [GPSX,Y]
syslocation Taipei, Taiwan
#syscontact Your Name <[email protected]>
syscontact Jonathan Tsai <[email protected]>
:

curl -o /usr/bin/distro https://raw.githubusercontent.com/librenms/librenms-agent/master/snmp/distro
chmod +x /usr/bin/distro
systemctl enable snmpd
systemctl restart snmpd

cp /opt/librenms/librenms.nonroot.cron /etc/cron.d/librenms

cp /opt/librenms/misc/librenms.logrotate /etc/logrotate.d/librenms

chown -R librenms:librenms /opt/librenms
setfacl -d -m g::rwx /opt/librenms/rrd /opt/librenms/logs /opt/librenms/bootstrap/cache/ /opt/librenms/storage/
setfacl -R -m g::rwx /opt/librenms/rrd /opt/librenms/logs /opt/librenms/bootstrap/cache/ /opt/librenms/storage/

:
# Auto-Discovery
// v1 or v2c
$config['snmp']['community'][] = "public";
$config['snmp']['community'][] = "ichiayi_snmp";
 
$config['nets'][] = '192.168.1.0/24';
 
$config['autodiscovery']['nets-exclude'][] = '192.168.1.1/32';
 
$config['discovery_by_ip'] = true;

cd /opt/librenms
./snmp-scan.py

結果:

[root@ct-librenms librenms]# ./snmp-scan.py
Scanning IPs:
..............................................................................................................................................................................................................................................++++++++++-----

Scanned 253 IPs: 0 known devices, added 10 devices, failed to add 5 devices, 1 ips excluded by config
Runtime: 104.31 seconds