I have a public ip as below which is static (my isp provided) as below:
IP Address: x.x.146.50 Subnet Mask: 255.255.255.240 Default Gateway: x.x.146.49 DNS1: x.x.1.196 DNS2: x.x.7.196
But what is my Network, Broadcast and DNS (this scared me for ages, looking for a easy way to do 100% accurate calculating/math).
iface eth0 inet static address x.x.146.50 netmask 255.255.255.240 network ???????????? gateway x.x.146.49 broadcast ?????????
Follow up: (short cut)
$ ipcalculator 220.127.116.11/28 Address: 18.104.22.168 00001000.00001000.00001000.0000 1000 Netmask: 255.255.255.240 = 28 11111111.11111111.11111111.1111 0000 Wildcard: 0.0.0.15 00000000.00000000.00000000.0000 1111 => Network: 22.214.171.124/28 00001000.00001000.00001000.0000 0000 HostMin: 126.96.36.199 00001000.00001000.00001000.0000 0001 HostMax: 188.8.131.52 00001000.00001000.00001000.0000 1110 Broadcast: 184.108.40.206 00001000.00001000.00001000.0000 1111 Hosts/Net: 14 Class A 1) It tells me Broadcast what to copy and paste 2) It tells me Netmask what to copy and paste 3) It tells me Network what to copy and paste
Now its Easy! i was always finding them complex in my head to do manual calculation and server is down for 20 days :P. Not not anymore.