Здравствуй, ЛОр!
Имеем VPS с Центосью 7. Возникла надобность отключить IPv6. Инструкция взята с https://wiki.centos.org/ru/FAQ/CentOS7 trafshow показывает все равно пакеты с IPv6. ЧЯДНТ?
/etc/sysctl.conf
# sysctl settings are defined through files in
# /usr/lib/sysctl.d/, /run/sysctl.d/, and /etc/sysctl.d/.
#
# Vendors settings live in /usr/lib/sysctl.d/.
# To override a whole file, create a new file with the same in
# /etc/sysctl.d/ and put new settings there. To override
# only specific settings, add a file with a lexically later
# name in /etc/sysctl.d/ and put new settings there.
#
# For more information, see sysctl.conf(5) and sysctl.d(5).
kernel.panic = 10
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
