multiping

README

multiping

Just like regular ping, but measures round trip time to multiple hosts, all at once.

The user interface is similar to mtr:

Installation

Installing is as easy as:

$ go get -u github.com/digineo/go-ping/cmd/multiping

This will download and build this program and install it into $GOPATH/bin/ (assuming you have the Go toolchain installed).

To run it, you need elevated privileges (as mentioned in the README of ping-test). You can either run it as root (or via sudo; both not recommended), or enable the program to only open raw sockets (via setcap, but Linux-only):

$ sudo setcap cap_net_raw+ep $GOPATH/bin/multiping

Running

Assuming $GOPATH/bin is in your $PATH, just call it with a list of hosts and IP addresses (currently only IPv4):

$ multiping golang.org google.com 127.0.0.1

Options

To get a list of available options, run multiping -h:

Usage of ./multiping:
  -bind4 string
    	IPv4 bind address (default "0.0.0.0")
  -bind6 string
    	IPv6 bind address (default "::")
  -buf uint
    	buffer size for statistics (default 50)
  -interval duration
    	polling interval (default 1s)
  -resolve duration
    	timeout for DNS lookups (default 1.5s)
  -s uint
    	size of payload in bytes (default 56)
  -timeout duration
    	timeout for a single echo request (default 1s)

Roadmap

• cleanup UI code (this is a bit of a mess)
• add more features
  • different display modes (mtr has different views)
  • move "last error" column into a log area at the bottom
  • increase/decrease interval and/or timeout with -/+ keys
• fill IPv6 options with life (once the library has IPv6 support)
• use something more sophisticated than net.ResolveIPAddress to get a list of all A/AAAA records for a given domain name
  • this propably needs an off-switch