Recent content by ed@cwings

I switched to use ivy celeron on my desktop when I realized my i7 was idle almost whole time but setup used over 100w . now celeron uses around 30w with complete build price less than new i7 cpu alone. Plus I use 2-3 vms in virtual box with no signs of slow desktop performance.

Problem with DNS failover is caching as mentioned above. Some ISP simply ignore TTL values for DNS cache. Or users use their own setups. So your TTL might be a minute in your setup but at the other end failed IP might not update for another two hours.

-external - uptime robot or observium -internal - opennms - uptime robot - extra fast to deploy, extra easy to use, very limited - observium - fast deploy, easy to use, fancy graphs, limited functions - opennms - slower deploy , pain, pain, pain, but functionality make up for it.