Here are trial and error logs when installing netmrg.
about netmrg
http://www.netmrg.net/
# tail -1 /etc/lsb-release ;uname -ri
DISTRIB_DESCRIPTION="Ubuntu 12.04.4 LTS"
3.2.0-58-virtual x86_64
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The installation procedures are:
- install mysql and create a database for netmrg
- install net-snmp and MIB files
- install netmrg and configure it
at first, install mysql server and run mysql server before installing netmrg
# apt-get install mysql-server
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confirm that mysql is running.
# pgrep mysql
4875
5370
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then, install netmrg.
# apt-get install netmrg
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during the installation, you will be asked for the database name for netmrg.
I use “netmrg” as database name which is default setting.
confirm “netmrg” database exits.
# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 65
Server version: 5.5.34-0ubuntu0.12.04.1 (Ubuntu)
Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| netmrg |
| performance_schema |
| test |
+--------------------+
5 rows in set (0.00 sec)
mysql> quit
Bye
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edit apache2.conf
# tail -1 /etc/apache2/apache2.conf
Include /etc/netmrg/netmrg.conf
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start httpd.
# apachectl start
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access to http:// IP /netmrg
The default login is admin and the default password is nimda
collect data every 5 minutes
# pwd
/etc/cron.d
# cat netmrg
#
# Regular cron jobs for the netmrg package
#
*/5 * * * * netmrg test -x /usr/bin/netmrg-gatherer && /usr/bin/netmrg-gatherer -l31
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how can I manage my ubuntu box?
Seen from documents (http://wiki.netmrg.net/wiki/Basic_Tutorial), need to add the device which I would like to monitor.
Before adding the device, install net-snmp.
# apt-get install snmp snmpd
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edit /etc/snmp/snmpd.conf
# egrep -v ^# /etc/snmp/snmpd.conf | grep -v ^$ | grep -v "#"
view systemonly included .1
rocommunity public localhost
rocommunity public default -V systemonly
rouser authOnlyUser
sysLocation Sitting on the Dock of the Bay
sysContact Me <me@example.org>
sysServices 72
proc mountd
proc ntalkd 4
proc sendmail 10 1
disk / 10000
disk /var 5%
includeAllDisks 10%
load 12 10 5
trapsink localhost public
iquerySecName internalUser
rouser internalUser
defaultMonitors yes
linkUpDownNotifications yes
extend test1 /bin/echo Hello, world!
extend-sh test2 echo Hello, world! ; echo Hi there ; exit 35
master agentx
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restart snmpd
# service snmpd restart
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issue snmpbulkwalk to check you can get information.
# snmpbulkwalk -v 2c -c public 127.0.0.1 . | head -3
iso.3.6.1.2.1.1.1.0 = STRING: "Linux ubuntu 3.2.0-58-virtual #88-Ubuntu SMP Tue Dec 3 17:58:13 UTC 2013 x86_64"
iso.3.6.1.2.1.1.2.0 = OID: iso.3.6.1.4.1.8072.3.2.10
iso.3.6.1.2.1.1.3.0 = Timeticks: (4057) 0:00:40.57
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On the netmrg GUI, add the device.
Admin tab -> Add
clieck group “HOME” -> Add in the Monitored Devices section -> Create a new device
create a new sub device
sub-device type: Group
add graph you want to monitor
can’t see the graph.
Seen from the GUI, SNMP failed..
rrd files are stored under /var/lib/netmrg/rrd directory for sure.
# pwd
/var/lib/netmrg/rrd
# ls
mon_27.rrd mon_29.rrd mon_31.rrd mon_33.rrd mon_35.rrd mon_37.rrd
mon_28.rrd mon_30.rrd mon_32.rrd mon_34.rrd mon_36.rrd zero.rrd
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Googling “netmrg snmp failed”, it seems that I need to install MIB files.
# apt-get install snmp-mibs-downloader
# download-mibs
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edit /etc/snmp/snmp.conf
# egrep -v ^# /etc/snmp/snmp.conf
mibs +ALL
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okay.
