This is the 3rd and final post in my setup and use of the GoGrid Community GSI server for Cacti Monitoring. In my first post, “Set Up A Cacti Monitoring Server in Minutes with this GoGrid Community Server Image,,” I covered how to deploy Cacti in your GoGrid environment using a Community GSI. My second post, “How to Monitor Your Ubuntu Server on GoGrid in 6 Steps Using Cacti 0.8.7g,” I discussed how to initiate monitoring of your GoGrid Ubuntu server. Now to round things off, I want to show you how to link up your Cacti monitoring server to a Windows Server 2008 server on your GoGrid network. The base install of Cacti 0.8.7g will allow you to monitor the server’s bandwidth utilization, Ethernet errors, number of logged in users, and total number of processes. There are other templates available to monitor other components and services on your Windows server, but they require using an additional SNMP service beyond the Microsoft SNMP service. My blog post won’t get into the latter, but I will cover the former.
- Configure GoGrid private network connectivity on Windows 2008 Server and test connectivity to Cacti server
- Configure and start Microsoft SNMP service on your Windows 2008 Server
- Add new Cacti device
- Create graphs to log Local Connection and Local Connection 2 bandwidth and errors, Logged in Users, and server processes
Configure GoGrid private network connectivity on Windows 2008 Server and test connectivity to Cacti server
Below we see that we have a server (“Web2”) deployed on GoGrid with a public IP. Let’s log into this server and configure the private network with a private IP from the same subnet of the Cacti Monitor server. As I described in my previous post – I am using the prescribed private IP subnet from my GoGrid portal, contained under the List tab and then under Network – Private Network.
Once logged into the Windows 2008 server (“Web2”), I go to the Network and Sharing Center which is found by first going to the Start button. From here I need to open up Local Area Connection 2. This is the private network interface that plugs into your own private VLAN on GoGrid. I enter the “Properties” button and then open up “Internet Protocol Version 4 (TCP/IPv4)”. By default GoGrid will enable DHCP for this private network interface. If you have a DHCP server, your server can receive private IP addresses upon initial boot up. Perhaps I will cover this in a different post. For now, we need to configure the interface with a static IP available from our example private subnet 10.129.151.0/24. The subnet will be randomly generated for each customer account. I show you how to find this in my previous post, “How to Monitor Your Ubuntu Server on GoGrid in 6 Steps Using Cacti 0.8.7g.” Following the nomenclature – keeping the last octet of the 32bit address space the same as the public to make IP address association easier – I give this system the private IP address 10.129.151.110. The .110 matches up with the last 3 digits of the public IP address 126.96.36.199. This isn’t necessary, but helps you identify systems and know their private IP address based upon their public address and vice versa. See the image below of me assigning the private IP address.
Now, open up a command prompt >Go to Start, then Run – type in cmd and hit “enter”. I now test connectivity to the 10.129.151.0/24 network by pinging the gateway IP – 10.129.151.1. I get a response, so I can move on. If you don’t get a response, double check the private IP address you used and make sure the Subnet mask is correct. You can also test connectivity by pinging the private IP address of your Cacti Monitoring server. Remember, your 10.x.x.x/24 network will be different than my example subnet. Please check your portal for what you should be using.
Configure and start Microsoft SNMP service on your Windows 2008 Server
Check to see if you have the SNMP Service running already on your Windows system. By default, this server role in Windows Server 2008 on GoGrid isn’t installed and running. Go to Start -> Administrative Tools -> Services. SNMP Trap may be there, but we also need SNMP Service. To install SNMP Service go to Start -> Administrative Tools -> Server Manager -> Select Features -> Add Features. From here find and check SNMP Services (which covers SNMP Service and SNMP WMI Provider). See image below.
Click Next and this will begin the install process of this feature on Windows.
Once the SNMP Service is installed, we can go to the Services page to find and configure the SNMP Service with the appropriate community and host IP address to accept SNMP calls from.
First go to the Services page – Start -> Administrative Tools -> Services or from Run type services.msc
Find the local service – SNMP Service and right click it and go to properties. From here you need to give the service the community string that you will set on the Cacti server and the private IP address of your Cacti Monitor server. This is under Accepted Community Names and Accept SNMP packets from these hosts. See image below:
Add new Cacti device
This step is same “create a device” step that I outlined in my previous post – except the details of the host will be different.
The IP, hostname and template used in the screen shot below represent my example Windows 2008 server named “Web2.” I chose the Host Template Windows 2000/XP Host –> selected SNMP v2 -> put in the community string I chose, and clicked “create.”
You should see the SNMP information for the host quickly appears near the upper left portion of the screen. If you see an error here, you will need to check your private network connectivity between the two servers and check the SNMP Service configuration on the Windows 2008 server.
With the new device in place on Cacti, we can now create the graphs.
Create graphs to log Local Connection and Local Connection 2 bandwidth and errors, Logged in Users, and server processes
From the device we just created, go to Create Graphs for this Host.
From this page we want to add a check to the following graph templates seen below in the image:
- Logged in Users
- Local Connection
- Local Connection 2
Once you have done this, click Create at the bottom of the page.
We will do this again for the In/Out Errors/Discarded Packets option next.
- Change the “Select a graph type:” near the bottom of the Create Graph page to In/Out Errors/Discarded Packets
- Next check box the “Local Area Connection” and “Local Area Connection 2”
- Finally click the Create button at the bottom.
After about 5 minutes, the graph icons will be available and your data will then begin to accumulate for your viewing.
I hope this blog series was helpful for you. The GoGrid Cacti Monitor – Community GSI is a great server-based application that can easily be deployed to a GoGrid virtual server, and configured to communicate via SNMP with your servers on the GoGrid network. The information gathered will give you real-time and historical interface bandwidth, server performance, and other important system level information.
Be sure to check out other Community or Partner Server Images available on GoGrid. The GoGrid Exchange has many pre-configured software solutions that can be deployed to your GoGrid architecture in a matter of minutes.