
Enviado em 20/07/2015 - 10:28h
Bom dia amigos.me chamo alexandre e estou com um pequeno problema aki#!/bin/sh
caminho="/partition/bloquear/"
###############limpa os treco tudo
#rm -f ${caminho}ipsexo
##rm -f ${caminho}limpar_restricao
#vai ficar assim
#dig +short www.f****.com >> ${caminho}ipsexo
#enquanto le o arquivo executa a descoberta de ips
sort ${caminho}sexo | while read p; do
dig +short $p >> ${caminho}ipsexo
done
#remover linha iguais, copiando e colando em cima do mesmo arquivo
sort ${caminho}ipsexo | uniq >> ${caminho}tempipsexo ; rm -f ${caminho}ipsexo ; mv ${caminho}tempipsexo ${caminho}ipsexo
sed '/timed out/d' ${caminho}ipsexo >> ${caminho}tempipsexo ; rm -f ${caminho}ipsexo ; mv ${caminho}tempipsexo ${caminho}ipsexo
#verifica a existencia de regras anteriores e as deleta em FORWARD
iptables -t filter -L >> ${caminho}verifica
if grep -q "RESTRICAO" "${caminho}verifica"
then {
##########Apagar regras de redirecionar para a chain RESTRICAO
sort ${caminho}iplocalantigo | while read IPantigo; do
/usr/sbin/iptables -D FORWARD -p tcp -s $IPantigo --dport 20:79 -j RESTRICAO
/usr/sbin/iptables -D FORWARD -s $IPantigo -p tcp --dport 81:909 -j RESTRICAO
/usr/sbin/iptables -D FORWARD -s $IPantigo -p tcp --dport 914:8179 -j RESTRICAO
/usr/sbin/iptables -D FORWARD -s $IPantigo -p tcp --dport 8182:65535 -j RESTRICAO
done
#apagar cópia iplocalantigo
rm -f ${caminho}iplocalantigo
}
fi
if grep -q "RESTRICAO" "${caminho}verifica"
then {
###########Apagar Chain RESTRICAO
/usr/sbin/iptables -t filter -F RESTRICAO
/usr/sbin/iptables -t filter -X RESTRICAO
}
fi
###########Criar nova chain com nome RESTRICAO
/usr/sbin/iptables -t filter -N RESTRICAO
rm -f ${caminho}verifica
###########Politica padrão da chain RESTRICAO é accept
iptables -t filter -A RESTRICAO -s 0.0.0.0/0 -d 0.0.0.0/0 -j ACCEPT
iptables -t nat -I PREROUTING -s 192.168.0.2 -j ACCEPT
iptables -t nat -I POSTROUTING -s 192.168.0.2 -j MASQUERADE
iptables -I FORWARD -s 192.168.0.2 -j ACCEPT
iptables -t nat -I PREROUTING -s 192.168.0.10 -j ACCEPT
iptables -t nat -I POSTROUTING -s 192.168.0.10 -j MASQUERADE
iptables -I FORWARD -s 192.168.0.10 -j ACCEPT
iptables -t nat -I PREROUTING -s 192.168.0.11 -j ACCEPT
iptables -t nat -I POSTROUTING -s 192.168.0.11 -j MASQUERADE
iptables -I FORWARD -s 192.168.0.11 -j ACCEPT
iptables -t nat -I PREROUTING -s 192.168.0.12 -j ACCEPT
iptables -t nat -I POSTROUTING -s 192.168.0.12 -j MASQUERADE
iptables -I FORWARD -s 192.168.0.12 -j ACCEPT
iptables -t nat -I PREROUTING -s 192.168.0.21 -j ACCEPT
iptables -t nat -I POSTROUTING -s 192.168.0.21 -j MASQUERADE
iptables -I FORWARD -s 192.168.0.21 -j ACCEPT
iptables -t nat -I PREROUTING -s 192.168.0.22 -j ACCEPT
iptables -t nat -I POSTROUTING -s 192.168.0.22 -j MASQUERADE
iptables -I FORWARD -s 192.168.0.22 -j ACCEPT
iptables -A FORWARD -j DROPDNS
iptables -A FORWARD -m state --state INVALID -j DROP
iptables -A FORWARD -m state --state established,related -j ACCEPT
iptables -A FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
###########Destinos bloqueados da RESTRICAO
sort ${caminho}ipsexo | while read IP2; do
/usr/sbin/iptables -I RESTRICAO -d $IP2 -j REJECT
done
sort ${caminho}iplocal | while read IP; do
###########Redirecionar para a chain RESTRICAO, os ips locais
/usr/sbin/iptables -I FORWARD -p tcp -s $IP --dport 20:79 -j RESTRICAO >> ${caminho}FORWARD
/usr/sbin/iptables -I FORWARD -s $IP -p tcp --dport 81:909 -j RESTRICAO >> ${caminho}FORWARD
/usr/sbin/iptables -I FORWARD -s $IP -p tcp --dport 914:8179 -j RESTRICAO >> ${caminho}FORWARD
/usr/sbin/iptables -I FORWARD -s $IP -p tcp --dport 8182:65535 -j RESTRICAO >> ${caminho}FORWARD
done
#faz copia de segurança
cp ${caminho}iplocal ${caminho}iplocalantigo
yes dynamic network source internet,internet2 192.168.0.2 0.0.0.0 9 #Discard
yes dynamic network source internet,internet2 192.168.0.2.0.0.0 22 #SSH
yes dynamic network source internet,internet2 192.168.0.2 0.0.0.0 80 #WWW
yes dynamic network source internet,internet2 192.168.0.2 0.0.0.0 443 #HTTPS
yes dynamic network source internet,internet2 192.168.0.10 0.0.0.0 9 #Discard
yes dynamic network source internet,internet2 192.168.0.10.0.0.0 22 #SSH
yes dynamic network source internet,internet2 192.168.0.10 0.0.0.0 80 #WWW
yes dynamic network source internet,internet2 192.168.0.10 0.0.0.0 443 #HTTPS
yes dynamic network source internet,internet2 192.168.0.11 0.0.0.0 9 #Discard
yes dynamic network source internet,internet2 192.168.0.11.0.0.0 22 #SSH
yes dynamic network source internet,internet2 192.168.0.11 0.0.0.0 80 #WWW
yes dynamic network source internet,internet2 192.168.0.11 0.0.0.0 443 #HTTPS
yes dynamic network source internet,internet2 192.168.0.12 0.0.0.0 9 #Discard
yes dynamic network source internet,internet2 192.168.0.12.0.0.0 22 #SSH
yes dynamic network source internet,internet2 192.168.0.12 0.0.0.0 80 #WWW
yes dynamic network source internet,internet2 192.168.0.12 0.0.0.0 443 #HTTPS
yes dynamic network source internet,internet2 192.168.0.21 0.0.0.0 9 #Discard
yes dynamic network source internet,internet2 192.168.0.21.0.0.0 22 #SSH
yes dynamic network source internet,internet2 192.168.0.21 0.0.0.0 80 #WWW
yes dynamic network source internet,internet2 192.168.0.21 0.0.0.0 443 #HTTPS
yes dynamic network source internet,internet2 192.168.0.22 0.0.0.0 9 #Discard
yes dynamic network source internet,internet2 192.168.0.22.0.0.0 22 #SSH
yes dynamic network source internet,internet2 192.168.0.22 0.0.0.0 80 #WWW
yes dynamic network source internet,internet2 192.168.0.22 0.0.0.0 443 #HTTPS
Modo Simples de Baixar e Usar o bash-completion
Monitorando o Preço do Bitcoin ou sua Cripto Favorita em Tempo Real com um Widget Flutuante
Instalando partes faltantes do Plasma 6
Adicionar botão "mostrar área de trabalho" no Zorin OS
Como montar um servidor de backup no linux
Estou tentando ser legalista, mas tá complicado! (9)
espelhar monitores nao funciona (2)
SQLITE não quer funcionar no LINUX LMDE6 64 com Lazaruz 4.2 64bit (n... (1)









