dns - Block a specific port on a Juniper -


i trying out has juniper srx550. want block outbound port 53 on dhcp pool, , outbound port 53 except name-server set dhcp pool (in case ips set opendns, don’t think relevant.

set system services dhcp pool 10.0.0.0/24 name-server 208.67.222.222

set name-server, have been unable find way block outbound dns aren’t going opendns servers.

this config looks currently:

dhcp {     pool 10.0.0.0/24 {         address-range low 10.0.0.10 high 10.0.0.254;         name-server {             208.67.222.222;             208.67.220.220;         }         router {             10.0.0.1;         }     } } 

set security policies from-zone "name of dhcp range zone" to-zone "name of dns server zone" match source-address "name of dhcp range in address list"

set security policies from-zone "name of dhcp range zone" to-zone "name of dns server zone" match destination-address "name of dns server in address list"

set security policies from-zone "name of dhcp range zone" to-zone "name of dns server zone" match application [ junos-dns-tcp junos-dns-udp ]

set security policies from-zone "name of dhcp range zone" to-zone "name of dns server zone" permit

set security policies global policy dns_block match source-address "name of dhcp range in address list"

set security policies global policy dns_block match application [ junos-dns-tcp junos-dns-udp ]

set security policies global policy dns_block deny


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