SUNScholar/Disaster Recovery/System Monitor/Client
Back to Disaster Recovery System Monitor
This wiki help page assumes that you have used the three system setup procedures to install an Ubuntu server with DSpace software.
First click here to create a PostgreSQL credentials file.
Then continue.
Add a firewall rule to allow the monitoring server to get the stats:
ufw allow 4949
Install munin as follows:
Login and become the root user and install the following:
sudo apt-get install munin-node libdbd-pg-perl libxml-simple-perl
Setup munin to allow the monitoring server to gather statistics as follow:
sudo nano /etc/munin/munin-node.conf
Add the following to the file:
allow $IP-ADDRESS-of-monitoring-server%
Note: At SULIS our monitoring server IP address is: 146.232.128.157
Change the following:
host_name %hostname-of-client%
See example below.
# Set this if the client doesn't report the correct hostname when # telnetting to localhost, port 4949 # host_name repository.sun.ac.za # A list of addresses that are allowed to connect. This must be a # regular expression, since Net::Server does not understand CIDR-style # network notation unless the perl module Net::CIDR is installed. You # may repeat the allow line as many times as you'd like allow ^127\.0\.0\.1$ allow ^146\.232\.128\.157$ allow 146.232.128.157
- NANO Editor Help
| CTL+O | = Save the file and then press Enter |
| CTL+X | = Exit "nano" |
| CTL+K | = Delete line |
| CTL+U | = Undelete line |
| CTL+W | = Search for %%string%% |
| CTL+\ | = Search for %%string%% and replace with $$string$$ |
| CTL+C | = Show line numbers |
More info = http://en.wikipedia.org/wiki/Nano_(text_editor)
Run the following command to update stats available:
munin-node-configure --shell | bash -
Restart the local Munin daemon
- It is necessary to restart the local munin daemon so that the remote server may connect.
sudo /etc/init.d/munin-node restart
Check which stats are available
cd /etc/munin/plugins
ls -l
Thats it. As usual there is a lot of documentation about Munin out there.
