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disable_iptables.sh
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disable_iptables.sh
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#!/bin/bash
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http:https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# Copyright Clairvoyant 2015
PATH=/usr/bin:/usr/sbin:/bin:/sbin:/usr/local/bin
# Function to discover basic OS details.
discover_os() {
if command -v lsb_release >/dev/null; then
# CentOS, Ubuntu, RedHatEnterpriseServer, RedHatEnterprise, Debian, SUSE LINUX, OracleServer
# shellcheck disable=SC2034
OS=$(lsb_release -is)
# CentOS= 6.10, 7.2.1511, Ubuntu= 14.04, RHEL= 6.10, 7.5, SLES= 11, OEL= 7.6
# shellcheck disable=SC2034
OSVER=$(lsb_release -rs)
# 7, 14
# shellcheck disable=SC2034
OSREL=$(echo "$OSVER" | awk -F. '{print $1}')
# Ubuntu= trusty, wheezy, CentOS= Final, RHEL= Santiago, Maipo, SLES= n/a
# shellcheck disable=SC2034
OSNAME=$(lsb_release -cs)
else
if [ -f /etc/redhat-release ]; then
if [ -f /etc/centos-release ]; then
# shellcheck disable=SC2034
OS=CentOS
# shellcheck disable=SC2034
OSREL=$(rpm -qf /etc/centos-release --qf='%{VERSION}\n' | awk -F. '{print $1}')
# shellcheck disable=SC2034
OSNAME=$(awk -F"[()]" '{print $2}' /etc/centos-release | sed 's| ||g')
if [ -z "$OSNAME" ]; then
# shellcheck disable=SC2034
OSNAME="n/a"
fi
if [ "$OSREL" -le "6" ]; then
# 6.10.el6.centos.12.3
# shellcheck disable=SC2034
OSVER=$(rpm -qf /etc/centos-release --qf='%{VERSION}.%{RELEASE}\n' | awk -F. '{print $1"."$2}')
elif [ "$OSREL" == "7" ]; then
# 7.5.1804.4.el7.centos
# shellcheck disable=SC2034
OSVER=$(rpm -qf /etc/centos-release --qf='%{VERSION}.%{RELEASE}\n' | awk -F. '{print $1"."$2"."$3}')
elif [ "$OSREL" == "8" ]; then
if [ "$(rpm -qf /etc/centos-release --qf='%{NAME}\n')" == "centos-stream-release" ]; then
# shellcheck disable=SC2034
OS=CentOSStream
# shellcheck disable=SC2034
OSVER=$(rpm -qf /etc/centos-release --qf='%{VERSION}\n' | awk -F. '{print $1}')
else
# shellcheck disable=SC2034
OSVER=$(rpm -qf /etc/centos-release --qf='%{VERSION}.%{RELEASE}\n' | awk -F. '{print $1"."$2"."$4}')
fi
else
# shellcheck disable=SC2034
OS=CentOSStream
# shellcheck disable=SC2034
OSVER=$(rpm -qf /etc/centos-release --qf='%{VERSION}\n')
fi
elif [ -f /etc/oracle-release ]; then
# shellcheck disable=SC2034
OS=OracleServer
# 7.6
# shellcheck disable=SC2034
OSVER=$(rpm -qf /etc/oracle-release --qf='%{VERSION}\n')
# shellcheck disable=SC2034
OSNAME="n/a"
else
# shellcheck disable=SC2034
OS=RedHatEnterpriseServer
# 8.6, 7.5, 6Server
# shellcheck disable=SC2034
OSVER=$(rpm -qf /etc/redhat-release --qf='%{VERSION}\n')
# shellcheck disable=SC2034
OSREL=$(echo "$OSVER" | awk -F. '{print $1}')
if [ "$OSVER" == "6Server" ]; then
# shellcheck disable=SC2034
OSVER=$(rpm -qf /etc/redhat-release --qf='%{RELEASE}\n' | awk -F. '{print $1"."$2}')
elif [ "$OSREL" == "8" ]; then
# shellcheck disable=SC2034
OS=RedHatEnterprise
fi
# shellcheck disable=SC2034
OSNAME=$(awk -F"[()]" '{print $2}' /etc/redhat-release | sed 's| ||g')
fi
# shellcheck disable=SC2034
OSREL=$(echo "$OSVER" | awk -F. '{print $1}')
elif [ -f /etc/SuSE-release ]; then
if grep -q "^SUSE Linux Enterprise Server" /etc/SuSE-release; then
# shellcheck disable=SC2034
OS="SUSE LINUX"
fi
# shellcheck disable=SC2034
OSVER=$(rpm -qf /etc/SuSE-release --qf='%{VERSION}\n' | awk -F. '{print $1}')
# shellcheck disable=SC2034
OSREL=$(echo "$OSVER" | awk -F. '{print $1}')
# shellcheck disable=SC2034
OSNAME="n/a"
fi
fi
}
echo "********************************************************************************"
echo "*** $(basename "$0")"
echo "********************************************************************************"
# Check to see if we are on a supported OS.
discover_os
if [ "$OS" != RedHatEnterpriseServer ] && [ "$OS" != CentOS ] && [ "$OS" != OracleServer ] && [ "$OS" != Ubuntu ]; then
#if [ "$OS" != RedHatEnterpriseServer ] && [ "$OS" != CentOS ] && [ "$OS" != OracleServer ] && [ "$OS" != Debian ] && [ "$OS" != Ubuntu ]; then
echo "ERROR: Unsupported OS."
exit 3
fi
echo "Disabling iptables..."
if [ "$OS" == RedHatEnterpriseServer ] || [ "$OS" == CentOS ] || [ "$OS" == OracleServer ]; then
if [ "$OSREL" == 6 ]; then
service iptables stop
chkconfig iptables off
# service ip6tables stop
# chkconfig ip6tables off
else
service firewalld stop
chkconfig firewalld off
service iptables stop
chkconfig iptables off
# service ip6tables stop
# chkconfig ip6tables off
fi
elif [ "$OS" == Ubuntu ]; then
service ufw stop
ufw disable
elif [ "$OS" == Debian ]; then
# https://www.cyberciti.biz/faq/debian-iptables-stop/
iptables -F
iptables -X
iptables -t nat -F
iptables -t nat -X
iptables -t mangle -F
iptables -t mangle -X
iptables -P INPUT ACCEPT
iptables -P OUTPUT ACCEPT
iptables -P FORWARD ACCEPT
fi