OSX network testing utils for diagnosing what has gone wrong from a Mac.
$ brew tap dbrinegar/dbrinegar
$ brew install dbrinegar/dbrinegar/netmon
Workers are like Nagios plugins in that they do one simple test, print a message, and exit 2 for failure, or 0 for success
- testnet
- testdns
- testntp
Runner script netmon.sh prints something like this when things are working:
$ netmon.sh
OK network can reach 192.168.254.1
OK network can reach 8.8.8.8
OK dns working on 8.8.8.8
OK dns working on 192.168.254.1
OK dns working on localhost
OK time in sync -35.289 on 192.168.254.1
OK time in sync -85.953 on localhost
and can use the nagios2nljson formatter to get time series data:
$ netmon.sh -j
{"status":0, "time":1420587270, "msg":"OK network can reach 192.168.254.1", "cmd":"testnet 192.168.254.1"}
{"status":0, "time":1420587270, "msg":"OK network can reach 8.8.8.8", "cmd":"testnet 8.8.8.8"}
{"status":0, "time":1420587270, "msg":"OK dns working on 8.8.8.8", "cmd":"testdns 8.8.8.8"}
{"status":0, "time":1420587270, "msg":"OK dns working on 192.168.254.1", "cmd":"testdns 192.168.254.1"}
{"status":0, "time":1420587270, "msg":"OK dns working on localhost", "cmd":"testdns localhost"}
{"status":0, "time":1420587270, "msg":"OK time in sync -34.254 on 192.168.254.1", "cmd":"testntp 192.168.254.1"}
{"status":0, "time":1420587270, "msg":"OK time in sync 40.063 on localhost", "cmd":"testntp localhost"}