scripts/test_dns.sh
2025-02-04 09:40:25 +01:00

57 lines
1.7 KiB
Bash

#!/usr/bin/env bash
# execute testdns.sh
command -v bc > /dev/null || { echo "bc was not found. Installing..."; sudo apt install -y bc; }
{ command -v drill > /dev/null && dig=drill; } || { command -v dig > /dev/null && dig=dig; } || { echo "dig was not found. Installing..."; sudo apt install -y dnsutils; }
NAMESERVERS=`cat /etc/resolv.conf | grep ^nameserver | cut -d " " -f 2 | sed 's/\(.*\)/&#&/'`
PROVIDERS="
1.1.1.1#cloudflare
4.2.2.1#level3
8.8.8.8#google
9.9.9.9#quad9
80.80.81.81#freenom
208.67.222.123#opendns
199.85.126.20#norton
185.228.168.168#cleanbrowsing
185.44.24.27#emartinez(MU)
156.154.70.1#neustar
8.26.56.26#comodo
192.168.1.1#192.168.1.1
94.140.14.14#adguard
77.88.8.8#yandex
64.6.64.6#verisign
185.14.39.135#Networklan(MU)
216.146.35.35#dyn-dns
94.140.15.15#adguard2
193.58.251.251#sky-dns
"
# Dominios test.
DOMAINS2TEST="www.google.com amazon.com facebook.com www.youtube.com www.reddit.com wikipedia.org twitter.com gmail.com www.google.es whatsapp.com forocoches.es"
totaldomains=0
printf "%-18s" ""
for d in $DOMAINS2TEST; do
totaldomains=$((totaldomains + 1))
printf "%-8s" "test$totaldomains"
done
printf "%-8s" "Average"
echo ""
for p in $NAMESERVERS $PROVIDERS; do
pip=${p%%#*}
pname=${p##*#}
ftime=0
printf "%-18s" "$pname"
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
#let's have time out be 1s = 1000ms
ttime=1000
elif [ "x$ttime" = "x0" ]; then
ttime=1
fi
printf "%-8s" "$ttime ms"
ftime=$((ftime + ttime))
done
avg=`bc -lq <<< "scale=2; $ftime/$totaldomains"`
echo " $avg"
done
exit 0;