In order to find the subnet mask for your host, use the “ifconfig” command with the interface name and pipe it with the “grep” command to isolate the “mask” string. In this case, you are presented with subnet masks for every network interface (loopback interface included).
How do I find my netmask and subnet in Linux?
Ubuntu Linux
- Launch the Terminal application.
- Type “ifconfig” at the terminal prompt, then press the “Enter” key. The IP address is labeled as “inet addr.” The subnet is labeled as “Mask.”
- Type “netstat -r” at the command prompt, then press the “Enter” key to view the gateway address.
How do I find my netmask and subnet?
Total number of subnets: Using the subnet mask 255.255. 255.248, number value 248 (11111000) indicates that 5 bits are used to identify the subnet. To find the total number of subnets available simply raise 2 to the power of 5 (2^5) and you will find that the result is 32 subnets.
What is Netmask and gateway in Linux?
The IP address of this Linux server is 192.168. 0.1 which is labeled as inet. You can see the subnet mask of this server which is showing 255.255. 255.0 as netmask. … The connection interface name will be used later in next section during changing IP addresses, subnet mask and gateway details.
How do I find out what my DNS server is?
To see or edit the DNS settings on your Android phone or tablet, tap the “Settings” menu on your home screen. Tap “Wi-Fi” to access your network settings, then press and hold the network you want to configure and tap “Modify Network.” Tap “Show Advanced Settings” if this option appears.
How do I locate my IP address?
On an Android smartphone or tablet: Settings > Wireless & Networks (or “Network & Internet” on Pixel devices) > select the WiFi network that you’re connected to > Your IP address is displayed alongside other network information.
How do I find the server name in Linux?
To check the current nameservers (DNS) for any domain name from a Linux or Unix/macOS command line:
- Open the Terminal application.
- Type host -t ns domain-name-com-here to print the current DNS servers of a domain.
- Another options is to run dig ns your-domain-name command.
How do I change the netmask in Linux?
Steps
- To specify a subnet mask for an interface, enter the following command: ifconfig interface_name netmask mask. …
- To change the subnet mask for an interface that has been configured with a primary and an alias address, enter the following command for each IP address: ifconfig interface_name IP address netmask mask.
How do I find my network address in Linux?
You can determine the IP address or addresses of your Linux system by using the hostname , ifconfig , or ip commands. To display the IP addresses using the hostname command, use the -I option. In this example the IP address is 192.168. 122.236.
How many subnets are in a 24?
Subnet Cheat Sheet – 24 Subnet Mask, 30, 26, 27, 29, and other IP Address CIDR Network References
| CIDR | Subnet mask | # of IP addresses |
|---|---|---|
| /24 | 255.255.255.0 | 256 |
| /23 | 255.255.254.0 | 512 |
| /22 | 255.255.252.0 | 1,024 |
| /21 | 255.255.248.0 | 2,048 |
How do you find subnets?
To calculate the number of possible subnets, use the formula 2n, where n equals the number of host bits borrowed. For example, if three host bits are borrowed, then n=3. 23 = 8, so eight subnets are possible if three host bits are borrowed. The table below lists the powers of 2.
What is default gateway Linux?
A gateway is a node or a router that acts as an access point to passes network data from local networks to remote networks. … You can find default gateway using ip, route and netstat commands in Linux systems.
What should my netmask be?
Most home networks use the default subnet mask of 255.255. 255.0. However, an office network may be configured with a different subnet mask such as 255.255. 255.192, which limits the number of IP addresses to 64.