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2026-05-11 09:15:08 +02:00

16 lines
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#!/usr/bin/env bash
{
output=""
grubfile=$(find /boot -type f \( -name 'grubenv' -o -name 'grub.conf' -o -name 'grub.cfg' \) -exec grep -Pl -- '^\h*(kernelopts=|linux|kernel)' {} \; )
searchloc="/run/sysctl.d/*.conf /etc/sysctl.d/*.conf /usr/local/lib/sysctl.d/*.conf /usr/lib/sysctl.d/*.conf /lib/sysctl.d/*.conf /etc/sysctl.conf"
if [ -s "$grubfile" ]; then
! grep -P -- "^\h*(kernelopts=|linux|kernel)" "$grubfile" | grep -vq -- ipv6.disable=1 && output="IPv6 Disabled in \"$grubfile\""
fi
if
grep -Pqs -- "^\h*net\.ipv6\.conf\.all\.disable_ipv6\h*=\h*1\h*(#.*)?$" $searchloc && grep -Pqs -- "^\h*net\.ipv6\.conf\.default\.disable_ipv6\h*=\h*1\h*(#.*)?$" $searchloc && sysctl net.ipv6.conf.all.disable_ipv6 | grep -Pqs -- "^\h*net\.ipv6\.conf\.all\.disable_ipv6\h*=\h*1\h*(#.*)?$" && sysctl net.ipv6.conf.default.disable_ipv6 | grep -Pqs -- "^\h*net\.ipv6\.conf\.default\.disable_ipv6\h*=\h*1\h*(#.*)?$"
then
[ -n "$output" ] && output="$output, and in sysctl config" || output="ipv6 disabled in sysctl config"
fi
[ -n "$output" ] && echo -e "\n$output\n" || echo -e "\nIPv6 is enabled on the system\n"
}