On Tue, Mar 11, 2014 at 8:38 AM, Toralf Lund <toralf.lund at pgs.com> wrote: > //Hi,/ > > /I need to implement a system of disk space checks and warnings for a > client-server setup running CentOS 6. Simply put, I just want a warning > popup rather like the ones given by gdu-notification-daemon when server > file system is full or nearly full, but they should appear on the client > display(s) rather than locally, and must also work when nobody is logged > directly in to the (server) system. it sounds like you think you want to send popup windows across from one system to many remote machines. this seems like a path of madness to me; full of potential problems like x windows security, or if you write your own little daemon to accept messages and display a box, misuse/abuse from playful users. I think you should build a monitoring system (nagios, xymon, opennms, several others or perhaps your own if you're feeling far too adventurous) instead. right now all you care about is disk space, but eventually someone will want to also check for certain processes, open ports, logfile entries, something and you could spend the time now to put in the hooks for more advanced things and get people in the habit of checking a monitoring system on a regular basis. > > What do you reckon is the best way of achieving this? I can think of > ways to get what I want via scripts/custom programs/cron jobs, but > perhaps there are "standard" solutions already? I'd like to avoid > re-inventing the wheel... I also know that there are various advanced > solutions for system resource monitoring out there - I've used Nagios in > the past - but it may seem like setting up something like that will be > an overkill in this case. > > So what's everyone's thoughts on this? > I would go with nagios, but I'm a bit biased that way. if you decide to go that route and want more input, send me an offlist email (unless others feel this is on topic for the list? it seems like it wanders out of scope to me, but I'm not trying to exclude people); I've got a nagios plugin script that I use for monitoring disk space use you can have if you'd like. or at least you can have it once I bring my machine back back online. -- Even the Magic 8 ball has an opinion on email clients: Outlook not so good.