Re: [CentOS] Monitoring OpenVPN TUNs with MRTG

On Oct 3, 2009, at 10:32 AM, Eduardo Grosclaude wrote:

I want to check some client OpenVPN TUN interfaces with MRTG running at my VPN server, so I have to specify their OID interface numbers in mrtg.cfg. The problem is, these numbers are dynamic, as they may change whenever OpenVPN restarts for any reason... so, how can I write stanzas such as

Target[somehostvpninterface] : ifInOctets.X&ifOutOctets.X:public@<SOMEHOST.IP>

without wiring up the X interface number into cfg file? Or, is there any method to keep X from changing at the clients? Any hints appreciated!

You can take a look at ifrename(8).

Giovanni P. Tirloni tirloni@gmail.com