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Add secondary servers and show IPs #80

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03489ea
Add secondary Cloudflare, Google, Quad9 DNS servers (both IPv4 and IPv6)
dlenski Sep 5, 2020
4b91934
Print IP address of each server tested, along with name
dlenski May 14, 2023
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12 changes: 9 additions & 3 deletions dnstest.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -5,13 +5,16 @@ command -v bc > /dev/null || { echo "error: bc was not found. Please install bc.
{ command -v drill > /dev/null && dig=drill; } || { command -v dig > /dev/null && dig=dig; } || { echo "error: dig was not found. Please install dnsutils."; exit 1; }


NAMESERVERS=`cat /etc/resolv.conf | grep ^nameserver | cut -d " " -f 2 | sed 's/\(.*\)/&#&/'`
NAMESERVERS=`cat /etc/resolv.conf | grep ^nameserver | cut -d " " -f 2 | sed 's/$/#[\/etc\/resolv.conf]/'`

PROVIDERSV4="
1.1.1.1#cloudflare
1.0.0.1#cloudflare2
4.2.2.1#level3
8.8.8.8#google
8.8.4.4#google2
9.9.9.9#quad9
149.112.112.112#quad9_2
80.80.80.80#freenom
208.67.222.123#opendns
199.85.126.20#norton
Expand All @@ -25,8 +28,11 @@ PROVIDERSV4="

PROVIDERSV6="
2606:4700:4700::1111#cloudflare-v6
2606:4700:4700::1001#cloudflare2-v6
2001:4860:4860::8888#google-v6
2001:4860:4860::8844#google2-v6
2620:fe::fe#quad9-v6
2620:fe::fe:9#quad9_2-v6
2620:119:35::35#opendns-v6
2a0d:2a00:1::1#cleanbrowsing-v6
2a02:6b8::feed:0ff#yandex-v6
Expand Down Expand Up @@ -68,7 +74,7 @@ DOMAINS2TEST="www.google.com amazon.com facebook.com www.youtube.com www.reddit.


totaldomains=0
printf "%-21s" ""
printf "%-21s %-21s" "" ""
for d in $DOMAINS2TEST; do
totaldomains=$((totaldomains + 1))
printf "%-8s" "test$totaldomains"
Expand All @@ -82,7 +88,7 @@ for p in $NAMESERVERS $providerstotest; do
pname=${p##*#}
ftime=0

printf "%-21s" "$pname"
printf "%-21s %-21s" "$pname" "$pip"
for d in $DOMAINS2TEST; do
ttime=`$dig +tries=1 +time=2 +stats @$pip $d |grep "Query time:" | cut -d : -f 2- | cut -d " " -f 2`
if [ -z "$ttime" ]; then
Expand Down