Tony van der Hoff grabbed a keyboard and wrote: > Hi, list, > > I have a squeezy VPS, running Postfix to handle all my mail, plus > several virtual users, with which I'm entirely satisfied. > > I also have a number of remote, normally unattended, locations, with > dynamic IPs, containing IP cameras to keep an eye on things. I'm not > able to access/change the camera firmware. These cameras send me an > email if their IP changes, containing the new IP address. > > Up to now, I've been manually extracting the IP from the incoming mail > (on my workstation), and plugging it into a nsupdate script, to update > bind on the VPS, so that I can access the camera(s) from anywhere on the > net. > > So far, so good, but what I'd really like to do is intercept the > incoming email on the VPS, and automatically run a script to do the update. > > There's an awful lot of information about postscript on the web, even > some articles that look like potential answers, but googling about has > not been fruitful. In particular, there appear to be problems with > priveleges. Naturally, I don't want to do anything that upsets mail > delivery to the virtual users. Maybe I didn't use the right search terms. > > Longer term, I'll install raspberry Pis on the remote networks to > automatically send an nsupdate to the server on IP change, but in the > interim, I'd like to automate the manual process above. > > Does anyone know how to attach some sort of filter/trigger to postfix to > cause a script to be run on incoming mail with particular conditions, > or would anyone like to suggest a better solution?
Look into Procmail, which might already be installed as the LDA for Postfix.
--Dave
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