portmapper rpcbind disable stop

Networking VPS Server

Portmapper also known as rpcbind is a service of UNIX and Linux which assists in mapping remote procedure call to network. Its primary work is to mount directory over a network. Attacker sometime use open portmapper to exploit DDOS attack.

stop command is

sudo systemctl stop rpcbind

systemctl stop rpcbind.socket

disable after restart the server also

sudo systemctl disable rpcbind

check the status of rpcbind

sudo systemctl status rpcbind

You can also bind the ip address because some time need it to transfer nfs

sudo iptables -A INPUT -p tcp --dport 111 -s <trusted_ip> -j ACCEPT
sudo iptables -A INPUT -p tcp --dport 111 -j DROP

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