Linux Basic Network Configuration | gateway Query

Linux basic network configuration

1.View Network Interface Information

Ifconfig view Network Interface Information (/sbin/ifconfig)

Ifconfig [network interface]

Ifconfig-A: View information of all network interfaces in the system

2.View gateway address and route information

Route view host route information (/sbin/route)

Route | grep default
Display the default gateway address

Ping the target host address to test network connection with other hosts

CTRL + C run the ping command

Ping-C [number of test packets] [destination host address]
Send a specified number of data packets for Network Testing

Traceroute [destination host address] test the network connection path with other hosts

3.View Host Name Information

Hostname: view the Host Name of the current host

Hostname [soul.com] Change the Host Name (disappears after restart)

VI/etc/sysconfig/network change host name (effective after restart)

~ # Grep Hostname/etc/sysconfig/Network

Hostname = soul.com

4.UseDNSServer query domain name

NSLookup domain name query

Exit to exit the switching Environment

5.
IPAddress Configuration command

Network Settings

Dhclient applies a new network configuration from the DHCP server to the current Linux host.

Ifconfig [network interface name] [IP address] netmask [subnet mask]
Configure IP addresses

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Route Configuration

Route add default GW [default gateway address] add Default Gateway route

Route del default GW [default gateway address]
Delete a default gateway route

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Use tools for Network Configuration

Configure the network in the netconfig window

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Network Service Startup Script

/Etc/init. d/network restart reset the network attribute of the current system (otherwise the new configuration will take effect the next time the system starts)

/Etc/init. d/network stop NETWORK SERVICE

CAT/etc/sysconfig/network-scripts/ifcfg-eth0 view eth0 Interface Configuration

Ifdown [Network Interface Name] Stop Network Interface

IFUP [Network Interface Name] Start Network Interface

Ifdown eth0; IFUP eth0 close the interface and start to make the network configuration take effect

6.
MacAddress Settings

/Sbin/ifconfig eth0 down disable eth0 Interface

/Sbin/ifconfig eth0 HW ether 00: 0C: 11: 22: 33: 10

/Sbin/ifconfig eth0 up

7.Local host name parsing File

CAT/etc/hosts saves the corresponding records of the local host name and IP address

Add more records of IP addresses and host names to VI/etc/hosts

8.Domain Name Server Configuration File

CAT/etc/resolv. conf query the DNS server used for domain name resolution

From http://blog.163.com/hnwbo_wanderer/blog/static/16326829020104352127946/