toolshed v0.2.12 Toolshed.Net View Source
Network related helpers
Link to this section Summary
Functions
Return the hostname
Print out the network interfaces and their addresses.
Lookup the specified hostname in the DNS and print out the addresses.
Ping an IP address using TCP
Check if a computer is up using TCP.
Link to this section Functions
Return the hostname
Examples
iex> hostname
"nerves-1234"
Print out the network interfaces and their addresses.
nslookup(name)
View Sourcenslookup(String.t()) :: :"do not show this result in output"
Lookup the specified hostname in the DNS and print out the addresses.
Examples
iex> nslookup "google.com"
Name: google.com
Address: 172.217.7.238
Address: 2607:f8b0:4004:804::200e
Ping an IP address using TCP
This tries to connect to the remote host using TCP instead of sending an ICMP echo request like normal ping. This made it possible to write in pure Elixir.
NOTE: Specifying an :ifname
only sets the source IP address for the TCP
connection. This is only a hint to use the specified interface and not a
guarantee. For example, if you have two interfaces on the same LAN, the OS
routing tables may send traffic out one interface in preference to the one
that you want. On Linux, you can enable policy-based routing and add source
routes to guarantee that packets go out the desired interface.
Options:
:ifname
- Specify a network interface to use. (e.g., "eth0")
Examples
iex> ping "nerves-project.org"
Press enter to stop
Response from nerves-project.org (185.199.108.153): time=4.155ms
Response from nerves-project.org (185.199.108.153): time=10.385ms
Response from nerves-project.org (185.199.108.153): time=12.458ms
iex> ping "google.com", ifname: "wlp5s0"
Press enter to stop
Response from google.com (172.217.7.206): time=88.602ms
Check if a computer is up using TCP.
Options:
:ifname
- Specify a network interface to use. (e.g., "eth0")
Examples
iex> tping "nerves-project.org"
Response from nerves-project.org (185.199.108.153): time=4.155ms
iex> tping "192.168.1.1"
Response from 192.168.1.1 (192.168.1.1): time=1.227ms