On Jan 25, 2008, at 2:54 AM, Giles Coochey wrote: > Hi List, > > As part of our Internet Connectivity monitoring I monitor a set of > websites on the Internet from a diverse number of locations > geographically. > > There are some issues with this: > > (a) I have to avoid sites that use Content Delivery Systems such as > Akamai, because as we host such boxes ourselves the websites actually > load from local servers which we host rather than the intended > geographic location. Most large sites such as www.yahoo.com and > www.google.com use these content delivery systems. > (b) I have to avoid small sites which often go down due to lack of > redundancy in their implementation. > (c) I have to avoid sites which might get pretty annoyed that I'm > pulling their homepage once every 10-15 minutes just to see if I'm > getting good access.
This is just generally bad behavior. Statement (c) tells me you already know this. > I would like to hear from others on the list as to what they do to > check > Internet Connectivity and whether they do any smart stuff to include > multiple connectivity checks as a single service check. > > What do you do? - verify interface status via SNMP - ping all our local internet connected interfaces (redundant to the above) - verify all our BGP sessions are up and with the proper peers. - where permitted/possible, ping the remote connected interface - Pay for a colocated/hosted box outside of our network that we can monitor to/from. This is useful not only for monitoring but general troubleshooting of our and other networks from the outside. - we don't use it but check_cluster(2) could be used to verify that all of several internet connections are up and notify appropriately. -- Marc ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
