Install Munin server
Munin is used for monitoring.
Install prerequisites
apt-get update && apt-get dist-upgrade apt-get -y install apache2 libcgi-fast-perl libapache2-mod-fcgid apt-get -y install smartmontools
Enable the fcgid module in apache
a2enmod fcgid service apache2 restart
Install Munin
apt-get -y install munin munin-node munin-plugins-extra
Install Perl Modules
Net::DNS is only used for ntp_states plugin, LWP::UserAgent is for apache_*
perl -MCPAN -e shell
install LWP::UserAgent install Net::DNS
Configure Munin
vi /etc/munin/munin.conf
dbdir /var/lib/munin
htmldir /var/cache/munin/www
logdir /var/log/munin
rundir /var/run/munin
tmpldir /etc/munin/templates
includedir /etc/munin/munin-conf.d
[localhost.localdomain]
address 127.0.0.1
use_node_name yesvi /etc/apache2/conf-enabled/munin.conf
Alias /munin /var/cache/munin/www
<Directory /var/cache/munin/www>
# Require local
# Require all granted
AuthUserFile /etc/munin/munin-htpasswd
AuthName "Munin"
AuthType Basic
Require valid-user
Options FollowSymLinks SymLinksIfOwnerMatch
Options None
</Directory>
ScriptAlias /munin-cgi/munin-cgi-graph /usr/lib/munin/cgi/munin-cgi-graph
<Location /munin-cgi/munin-cgi-graph>
# Require local
# Require all granted
AuthUserFile /etc/munin/munin-htpasswd
AuthName "Munin"
AuthType Basic
Require valid-user
Options FollowSymLinks SymLinksIfOwnerMatch
<IfModule mod_fcgid.c>
SetHandler fcgid-script
</IfModule>
<IfModule !mod_fcgid.c>
SetHandler cgi-script
</IfModule>
</Location>htpasswd -c /etc/munin/munin-htpasswd admin service apache2 restart service munin-node restart
Congratulations! Munin is now installed and running.
netstat -pant|grep 4949
tcp6 0 0 :::4949 :::* LISTEN 12890/perlLog in to Munin
http://your-ip/munin
Add Munin to ISPConfig
ln -s /var/cache/munin/www /usr/local/ispconfig/interface/web/munin
- https://ispconfig.serv.er:8080/munin/
ISPConfig | System | Server Config
Add Munin URL and credentials.
Additional Munin plugins
cd /etc/munin/plugins ln -s /usr/share/munin/apache_accesses service munin-node restart
Autoconfigure all services
munin-node-configure --shell | bash
Additional commands
The Munin command munin-node-configure –suggest can be used to get recommendations for additional Munin modules that can be enabled on the server.
munin-node-configure --suggest
Plugin | Used | Suggestions ------ | ---- | ----------- acpi | no | no [cannot read /proc/acpi/thermal_zone/*/temperature] amavis | no | no apache_accesses | no | yes apache_processes | no | yes apache_volume | no | yes apc_envunit_ | no | no [no units to monitor] bonding_err_ | no | no [No /proc/net/bonding] courier_mta_mailqueue | no | no [spooldir not found] courier_mta_mailstats | no | no [could not find executable] courier_mta_mailvolume | no | no [could not find executable] cps_ | no | no cpu | yes | yes cpuspeed | no | no [missing /sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state] cupsys_pages | no | no [could not find logdir] df | yes | yes df_inode | yes | yes diskstats | yes | yes entropy | yes | yes exim_mailqueue | no | no [no exiqgrep] exim_mailstats | no | no [logdir does not exist] fail2ban | no | no [/usr/bin/fail2ban-client not found] forks | yes | yes fw_conntrack | no | no fw_forwarded_local | no | no fw_packets | yes | yes hddtemp_smartctl | no | no [first drive not supported, configure the plugin] http_loadtime | yes | yes if_ | yes | yes (eth0) if_err_ | yes | yes (eth0) interrupts | yes | yes ip_ | no | yes ipmi_ | no | no [missing ipmitool command] irqstats | yes | yes load | yes | yes lpstat | no | no [lpstat not found] memory | yes | yes munin_stats | no | yes mysql_ | no | no [Missing dependency Cache::Cache] netstat | yes | yes nfs4_client | no | no [no /proc/net/rpc/nfs] nfs_client | no | no nfsd | no | no [no /proc/net/rpc/nfsd] nfsd4 | no | no [no /proc/net/rpc/nfsd] nginx_request | no | no [no nginx status on http://localhost/nginx_status] nginx_status | no | no [no nginx status on http://localhost/nginx_status] ntp_ | no | no ntp_kernel_err | yes | yes ntp_kernel_pll_freq | yes | yes ntp_kernel_pll_off | yes | yes ntp_offset | yes | yes ntp_states | no | no nvidia_ | no | no [no nvclock executable at /usr/bin/nvclock, please configure] open_files | yes | yes open_inodes | yes | yes pgbouncer_connections | no | no [DBD::Pg not found, and cannot do psql yet] pgbouncer_requests | no | no [DBD::Pg not found, and cannot do psql yet] postfix_mailqueue | yes | yes postfix_mailvolume | yes | yes postgres_autovacuum | no | no postgres_bgwriter | no | no postgres_cache_ | no | no postgres_checkpoints | no | no postgres_connections_ | no | no postgres_connections_db | no | no postgres_locks_ | no | no postgres_oldest_prepared_xact_ | no | no postgres_prepared_xacts_ | no | no postgres_querylength_ | no | no postgres_scans_ | no | no postgres_size_ | no | no postgres_transactions_ | no | no postgres_tuples_ | no | no postgres_users | no | no postgres_xlog | no | no proc | no | no proc_pri | yes | yes processes | yes | yes ps_ | no | no qmailqstat | no | no selinux_avcstat | no | no [missing /selinux/avc/cache_stats file] sendmail_mailqueue | no | no sendmail_mailstats | no | no sendmail_mailtraffic | no | no slapd_ | no | no [Net::LDAP not found] slapd_bdb_cache_ | no | no [Can't execute db_stat file '/usr/bin/db4.6_stat'] slony_lag_ | no | no [DBD::Pg not found, and cannot do psql yet] smart_ | no | no [no drives accessible] snort_alerts | no | no [/var/snort/snort.stats not readable] snort_bytes_pkt | no | no [/var/snort/snort.stats not readable] snort_drop_rate | no | no [/var/snort/snort.stats not readable] snort_pattern_match | no | no [/var/snort/snort.stats not readable] snort_pkts | no | no [/var/snort/snort.stats not readable] snort_traffic | no | no [/var/snort/snort.stats not readable] squeezebox_ | no | no [no connection on localhost port 9090] squid_cache | no | no [could not connect: Connection refused] squid_objectsize | no | no [could not connect: Connection refused] squid_requests | no | no [could not connect: Connection refused] squid_traffic | no | no [could not connect: Connection refused] swap | yes | yes threads | yes | yes tomcat_ | no | no uptime | yes | yes users | yes | yes varnish_ | no | no vmstat | yes | yes vserver_cpu_ | no | no [/proc/virtual/info not found] vserver_loadavg | no | no [/proc/virtual/info not found] vserver_resources | no | no [/proc/virtual/info not found] yum | no | no [Could not run yum]
Telnet
telnet localhost 4949
help
quit
Munin commands
Restart Munin
service munin-node restart
Plugin Documentation
munindoc <plugin-name> munindoc ip_
Execute Plugin
munin-run <plugin-name> munin-run df
See also
- UFW: Netzwerktraffic mit Munin überwachen
- gallery.munin-monitoring.org Munin Plugin Gallery
- guide.munin-monitoring.org How to write Munin plugins
