CentOS 7 solves nfs client mounting problems

CentOS 7 solves nfs client mounting problems

When the nfs server is configured, the mounting of the server is normal, but the following message is displayed when the client is mounted: mount. nfs: Connection timed out solution 1: Disable firewalld # systemctl stop firewalld # firewall-cmd -- state not running solution 2: rpcinfo-p display as follows:

Program vers proto

Program vers proto port service
100000 4 tcp 111 portmapper
100000 3 tcp 111 portmapper
100000 2 tcp 111 portmapper
100000 4 udp 111 portmapper
100000 3 udp 111 portmapper
100000 2 udp 111 portmapper
100005 3 tcp 38465 mountd
100005 1 tcp 38466 mountd
100003 3 tcp 2049 nfs
100024 1 udp 51714 status
100024 1 tcp 37589 status
100227 3 tcp 2049 nfs_acl

Open these ports: firewall-cmd -- permanent -- add-port = 111/tcpfirewall-cmd -- permanent -- add-port = 38465/tcpfirewall-cmd -- permanent -- add-port = 38466/tcpfirewall-cmd -- permanent -- add-port = 2049/tcpfirewall-cmd -- permanent -- add-port = 51714/tcpfirewall-cmd -- permanent -- add-port = 37589/tcp

Then

Firewall-cmd -- reload