On 11/03/14 14:17, zGreenfelder wrote: > 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. Not really worried by those things in this context. The setup is only physically accessible to a very limited group of trusted users, and access to or from the outside world is restricted by all sorts of firewalls etc, and also only available via a very slow and unreliable link... > 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. In general, that might make sense, but please consider the fact that I'm not talking about a "general" server system. It's a machine dedicated to running a "server" component on one specific software package, and will only ever be contacted by a handful of "display" machines running a GUI component of the same piece of software. - Toralf > >> 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. > This e-mail, including any attachments and response string, may contain proprietary information which is confidential and may be legally privileged. It is for the intended recipient only. If you are not the intended recipient or transmission error has misdirected this e-mail, please notify the author by return e-mail and delete this message and any attachment immediately. If you are not the intended recipient you must not use, disclose, distribute, forward, copy, print or rely on this e-mail in any way except as permitted by the author.