FreeBSD

FreeBSD_5x_Implementando_Configurando_CARP.txt

FreeBSD 5.3 STABLE

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# BAIXANDO O PATCH DO CARP
cd /usr/src
fetch http://people.freebsd.org/~mlaier/CARP/20041212-carp.RELENG_5.diff
mv 20041212-carp.RELENG_5.diff carp.diff

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# APLICANDO O PATCH DO CARP
patch -p0 < carp.diff

# INCLUINDO FEATURES NO KERNEL E RECOMPILANDO O MESMO)
(editar seu arquivo de configuração do kernel e incluir as seguintes linhas)

device         carp            
device          pf
device          pflog
device          pfsync

(Recompilar seu kernel " config KERNEL_NAME && cd ../compile/KERNEL_NAME && make depend && make && make install && reboot" )

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# RECOMPILANDO BINARIOS

cd /usr/src/sbin/ifconfig
make
make install

/usr/src/usr.bin/netstat
make
make install

obs.: Nao sei explicar ainda o pq... mas existem CASOS em que compilar estes binários não funciona....
entaum dou um salto la para o bom e velho MAKE BUILDWORLD e vou seguindo o feijao com arroz ;)

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# CONFIGURAÇOES

( Aqui vamos simular uma situação onde teremos um GATEWAY com o ip 192.168.1.1/24 o qual tera redundancia com CARP)
( vamos la.... 
( 192.168.1.1/24 = ip do CLUSTER (CARP)
( 192.168.1.2/24 = ip do FreeBSD que sera o MASTER)
( 192.168.1.3/24 = ip do FreeBSD que sera o BACKUP)

# Configuração do MASTER
ifconfig rl0 192.168.1.2/24
sysctl net.inet.carp.preempt=1
ifconfig carp0 create
ifconfig carp0 vhid 1 pass bsdux 192.168.1.1/24
sysctl net.inet.carp.arpbalance=1

# Configuração do BACKUP
ifconfig rl0 192.168.1.3/24
sysctl net.inet.carp.preempt=1
ifconfig carp0 create
ifconfig carp0 vhid 1 advskew 100 pass bsdux 192.168.1.1/24
sysctl net.inet.carp.arpbalance=1

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ok blz... ja estara rodando 100%
pode retirar o cabo de rede do MASTER e vera que o SLAVE assumira em 3 segundos :)

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Espero ter ajudado :-)

# Howto By
# Christopher Giese 
# skywarrior@bsdux.com.br
# www.bsdux.com.br