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install_easy: remove verbose DNS check

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bol-van 2021-12-08 15:20:25 +03:00
parent 600473dd25
commit 9b99653fdf
1 changed files with 1 additions and 86 deletions
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87
install_easy.sh
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@ -17,12 +17,6 @@ GET_LIST="$IPSET_DIR/get_config.sh"
GET_LIST_PREFIX=/ipset/get_
INIT_SCRIPT=/etc/init.d/zapret
DNSCHECK_DNS="8.8.8.8 1.1.1.1 77.88.8.8"
DNSCHECK_DOM="pornhub.com putinhuylo.com rutracker.org nnmclub.to protonmail.com"
DNSCHECK_DIG1=/tmp/dig1.txt
DNSCHECK_DIG2=/tmp/dig2.txt
DNSCHECK_DIGS=/tmp/digs.txt
[ -n "$TPPORT" ] || TPPORT=988
SYSTEMD_DIR=/lib/systemd
@ -649,7 +643,7 @@ copy_openwrt()
mkdir "$2/tpws" "$2/nfq" "$2/ip2net" "$2/mdig" "$2/binaries" "$2/binaries/$ARCH" "$2/init.d" "$2/tmp"
cp -R "$1/ipset" "$2"
cp -R "$1/init.d/openwrt" "$2/init.d"
cp "$1/config" "$1/install_easy.sh" "$1/uninstall_easy.sh" "$1/install_bin.sh" "$2"
cp "$1/config" "$1/install_easy.sh" "$1/uninstall_easy.sh" "$1/install_bin.sh" "$1/blockcheck.sh" "$2"
cp "$BINDIR/tpws" "$BINDIR/nfqws" "$BINDIR/ip2net" "$BINDIR/mdig" "$2/binaries/$ARCH"
}
@ -909,99 +903,20 @@ cron_ensure_running()
}
pingtest()
{
ping -c 1 -W 1 $1 >/dev/null
}
dnstest()
{
# $1 - dns server. empty for system resolver
nslookup w3.org $1 >/dev/null 2>/dev/null
}
find_working_public_dns()
{
for dns in $DNSCHECK_DNS; do
pingtest $dns && dnstest $dns && {
PUBDNS=$dns
return 0
}
done
return 1
}
check_dns_spoof()
{
# $1 - domain
# $2 - public DNS
echo $1 | "$EXEDIR/mdig/mdig" --family=4 >"$DNSCHECK_DIG1"
nslookup $1 $2 | sed -n '/Name:/,$p' | grep ^Address | grep -oE '([0-9]{1,3}\.){3}[0-9]{1,3}' >"$DNSCHECK_DIG2"
# check whether system resolver returns anything other than public DNS
grep -qvFf "$DNSCHECK_DIG2" "$DNSCHECK_DIG1"
}
check_dns_cleanup()
{
rm -f "$DNSCHECK_DIG1" "$DNSCHECK_DIG2" "$DNSCHECK_DIGS" 2>/dev/null
}
check_dns()
{
local C1 C2
echo \* checking DNS
[ -f "$DNSCHECK_DIGS" ] && rm -f "$DNSCHECK_DIGS"
dnstest || {
echo -- DNS is not working. It's either misconfigured or blocked or you don't have inet access.
return 1
}
echo system DNS is working
if find_working_public_dns ; then
echo comparing system resolver to public DNS : $PUBDNS
for dom in $DNSCHECK_DOM; do
if check_dns_spoof $dom $PUBDNS ; then
echo $dom : MISMATCH
echo -- system resolver :
cat "$DNSCHECK_DIG1"
echo -- $PUBDNS :
cat "$DNSCHECK_DIG2"
check_dns_cleanup
echo -- POSSIBLE DNS HIJACK DETECTED. ZAPRET WILL NOT HELP YOU IN CASE DNS IS SPOOFED !!!
echo -- DNS CHANGE OR DNSCRYPT MAY BE REQUIRED
return 1
else
echo $dom : OK
cat "$DNSCHECK_DIG1" >>"$DNSCHECK_DIGS"
fi
done
else
echo no working public DNS was found. looks like public DNS blocked.
for dom in $DNSCHECK_DOM; do echo $dom; done | "$EXEDIR/mdig/mdig" --threads=10 --family=4 >"$DNSCHECK_DIGS"
fi
echo checking resolved IP uniqueness for : $DNSCHECK_DOM
echo censor\'s DNS can return equal result for multiple blocked domains.
C1=$(wc -l <"$DNSCHECK_DIGS")
C2=$(sort -u "$DNSCHECK_DIGS" | wc -l)
[ "$C1" -eq 0 ] &&
{
echo -- DNS is not working. It's either misconfigured or blocked or you don't have inet access.
check_dns_cleanup
return 1
}
[ "$C1" = "$C2" ] ||
{
echo system dns resolver has returned equal IPs for some domains checked above \($C1 total, $C2 unique\)
echo non-unique IPs :
sort "$DNSCHECK_DIGS" | uniq -d
echo -- POSSIBLE DNS HIJACK DETECTED. ZAPRET WILL NOT HELP YOU IN CASE DNS IS SPOOFED !!!
echo -- DNSCRYPT MAY BE REQUIRED
check_dns_cleanup
return 1
}
echo all resolved IPs are unique
echo -- DNS looks good
echo -- NOTE this check is Russia targeted. In your country other domains may be blocked.
check_dns_cleanup
return 0
}