Networking • Automation • Occasional Podcasting
GitHub Scripts Mikrotik Training
GS gregsowell.com Inside Greg’s Brain

Category: Cacti Tutorials

  • Install NTOP On Your CactiEZ Server
    , ,

    Install NTOP On Your CactiEZ Server

    NTOP is a netflow collector, or it can be used to promiscuously sniff on a port. I do prefer flow viewer, but for those of you that prefer an easier, friendlier interface, here’s how you install NTOP. Set your repository up for dag: rpm -Uhv http://apt.sw.be/redhat/el4/en/i386/rpmforge/RPMS/rpmforge-release-0.3.6-1.el4.rf.i386.rpm Then install ntop: yum install ntop You will need…

  • , ,

    Cacti Video Tutorial – Backups

    CactiEZ by default runs a backup script nightly. It dumps these files into a folder. All we have to do is configure our CactiEZ box to send those files elsewhere. Backup location is /var/www/backup. The backup script itself is /var/www/backup.sh. I modify the backup script as below: #/bin/bash cd /var/www/ # Remove old backups find…

  • , , ,

    Cacti Video Tutorial Netflow / Flowviewer

    I wasn’t initially clear enough, so here is meat and potatoes explanation of netflow, then it will get into the history: Imagine a user in your network is downloading a huge file from somewhere on the internet. Now imagine you are exporting netflow information from your internet router and collecting it on your cacti box.…

  • ,

    Cacti Tutorial – Using CDEFs to Change Graph Data

    Cacti has some built in methods to manipulate data for display with your graphs, CDEFs. They allow you to do mathematical computations on your information. I recently made one to convert Celsius to Fahrenheit. I’ll show you my steps below; click read more to see the video!

  • ,

    Cacti Tutorial – Add Syslog and SNMP to your Cisco Devices

    Here we go. This adds syslog and SNMP to your Cisco switches and routers. This also includes steps on adding an access list to only allow the cacti server to poll via SNMP. Click the link below to see the video!

  • Cacti Tutorial – Add a Host

    Adding your first host. This also shows creating graphs and a tree structure. Follow me to view the tutorial.

  • Cacti Tutorial – Configure SNMP Windows Server

    Configure SNMP on windows so we can poll with Cacti. Click below to see the video tutorial!