Linux ARP command clears DNS cache

Overview
The ARP command is used to manage and view the kernel IPv4 network ARP cache. It can be used to add and delete records to the cache table. ARP is an abbreviation for Address Resolution Protocol (Resolution Protocol) to find the MAC address of a given IPv4 address

usage: arp [-VN] [if] [-A] [<hostname] <-display ARP cache ARP [-V] [-i <if]-D Delete arp record ARP [-VND] [if]-F [<filename>] <-add record arp from file [-V] [if]-S add record arp [-V] [if]-ds if> [netmask <nm>] Pub <-"'-        -a displays (all) hosts in a different (BSD) style-S,--set sets a new ARP record-D,--Delete deletes the specified record-V,--Verbose Show Details-N,--numeric name not resolved-I.,--device specifies a network interface (such as eth0)-D,--use-device reads the hardware address of the given unit-A,-p,--Protocol specifying protocol families-F,--fileFrom a file or/etc/read new record in ethers'- H 'Specifies the hardware address type. Default: Ether All possible hardware Types list: Ash (ASH) ether (Ethernet) ax25 (AMPR AX. -) Netrom (ampr NET/ROM) rose (Ampr Rose) arcnet (arcnet) DLCI (Frame Relay DLCI) FDDI (Fiber distributed Data Interface) Hippi (Hippi ) IrDA (IRLAP) x25 (generic X. -) eui64 (Generic eui- -)

The domain name is re-directed to the IP or you want to delete the local DNS cache to access the new ip,arp-d * Remove all DNS Caches

Linux ARP command clears DNS cache