Solaris uses nfs version 3... Use the command to get info
Code:
rpcinfo solaris-nfs-server
You can use the command to find out exported file system on NFS server with:
Code:
showmount -e NFS_SERVER
To find out bindd (DNS) server version use command:
Some pepole uses nslookup or dig to find out bind (DNS) server version too which is not reliable (it may or may not work or even give you wrong info)
Code:
nslookup -class=chaos -q=txt version.bind www.yahoo.com
nslookup -type=txt -class=chaos version.bind ns1.yahoo.com
OR
Code:
dig @ns1.yahoo.com version.bind txt chaos

Note that -v is common under Linux/Solaris/*BSD to find out version