Reset DNS after GlobalProtect getting stuck

reset_dns.sh

#!/bin/bash
scutil_primary_output=$(scutil << EOF
get State:/Network/Global/IPv4
d.show
EOF)

primary_interface=$(echo $scutil_primary_output | sed -n 's/.*PrimaryInterface : \([a-z0-9]*\).*/\1/p')
primary_service=$(echo $scutil_primary_output | sed -n 's/.*PrimaryService : \([A-Z0-9-]*\).*/\1/p')
#echo $primary_interface $primary_service
#exit;
#if=${1-en0}
default_servers=$( ipconfig getpacket $primary_interface | \
   perl -ne'/domain_name_server.*: \{(.*)}/ && print join " ", split /,\s*/, $1' )

echo Interface: $primary_interface DNS: $default_servers

#first_if_scutil_dns_key_list_item=$(scutil << EOF
#list ".*/Service/.*/DNS"
#EOF)

#first_if_scutil_dns_key=$(echo $first_if_scutil_dns_key_list_item | sed 's/subKey \[0\] = \(.*\)/\1/')
first_if_scutil_dns_key="State:/Network/Service/$primary_service/DNS"

dns_records_in_scutil=$(scutil << EOF
get $first_if_scutil_dns_key
d.show
exit
EOF)

global_protect_dns_records_in_scutil=$(scutil << EOF
get State:/Network/Service/gpd.pan/DNS
d.show
EOF)

echo "$first_if_scutil_dns_key -> $dns_records_in_scutil"
echo "State:/Network/Service/gpd.pan/DNS -> $global_protect_dns_records_in_scutil"

sudo scutil << EOF
get $first_if_scutil_dns_key
d.remove ServerAddresses
d.add ServerAddresses * $default_servers
set $first_if_scutil_dns_key
remove State:/Network/Service/gpd.pan/DNS
remove State:/Network/Service/gpd.pan/IPv4
exit
EOF