Hola, buenos dias a todos los amigos del mundo del linux, el problema que tengo es el siguiente.

Tengo un debian 4.0 ya habia configurado un squid transparente para que los usuarios de mi red naveguen por ahi por el puerto 3128, todo estaba normal hasta que de un momento a otro dejaron de navegar lo curioso es que si podian entrar al messenger, solo puedo navegar desde el servidor les dejo fragmentos del arranque del debian donde me salen cosas extrañas:

parte 1
Tue Oct 7 08:02:15 2008: Detecting hardware...Setting up networking....
Tue Oct 7 08:02:18 2008: Configuring network interfaces...run-parts: failed to exec /etc/network/if-pre-up.d/firewall: Exec format error
Tue Oct 7 08:02:18 2008: run-parts: /etc/network/if-pre-up.d/firewall exited with return code 1
Tue Oct 7 08:02:19 2008: Aplicando reglas de Firewall*OK, verifiquese el script con iptables -L -n*
Tue Oct 7 08:02:20 2008: run-parts: failed to exec /etc/network/if-pre-up.d/firewall: Exec format error
Tue Oct 7 08:02:20 2008: run-parts: /etc/network/if-pre-up.d/firewall exited with return code 1
Tue Oct 7 08:02:21 2008: Aplicando reglas de Firewall*OK, verifiquese el script con iptables -L -n*
Tue Oct 7 08:02:21 2008: done.

parte 2
Tue Oct 7 08:02:35 2008: Starting DHCP D-Bus daemon: dhcdbd.
Tue Oct 7 08:02:35 2008: Starting network connection manager: NetworkManager.
Tue Oct 7 08:02:35 2008: Starting Avahi mDNS/DNS-SD Daemon: avahi-daemon failed!
Tue Oct 7 08:02:35 2008: Starting network events dispatcher: NetworkManagerDispatcher.
Tue Oct 7 08:02:35 2008: Starting MTA: exim4.
Tue Oct 7 08:02:36 2008: dumpkeycodes: No such device

parte 3
Tue Oct 7 08:02:42 2008: Starting apache 1.3 web server....
Tue Oct 7 08:02:42 2008: ^[[33m*^[[39;49m Not starting apache2 - edit /etc/default/apache2 and change NO_START to be 0.

El archivo de configuracion del avahi-daemon.conf.
[server]
#host-name=foo
#domain-name=local
#browse-domains=0pointer.de, zeroconf.org
use-ipv4=yes
use-ipv6=no
#check-response-ttl=no
#use-iff-running=no
#enable-dbus=yes
#disallow-other-stacks=no
#allow-point-to-point=no

[wide-area]
enable-wide-area=yes

[publish]
#disable-publishing=no
#disable-user-service-publishing=no
#add-service-cookie=yes
#publish-addresses=yes
#publish-hinfo=yes
#publish-workstation=yes
#publish-domain=yes
#publish-dns-servers=192.168.50.1, 192.168.50.2
#publish-resolv-conf-dns-servers=yes

[reflector]
#enable-reflector=no
#reflect-ipv=no

[rlimits]
#rlimit-as=
rlimit-core=0
rlimit-data=4194304
rlimit-fsize=0
rlimit-nofile=30
rlimit-stack=4194304
rlimit-nproc=3

el archivo de configuracion del iptables en /etc/network/if-pre-up.d/firewall
iptables -F
iptables -t nat -F
iptables -t mangle -F
iptables -X
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
iptables -A INPUT -p ICMP -j ACCEPT
iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A INPUT -p tcp -i eth1 -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j ACCEPT
iptables -A INPUT -i lo -j ACCEPT
iptables -A INPUT -j DROP
iptables -I INPUT 7 -p tcp --dport https -j ACCEPT
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j DNAT --to-destination 192.168.1.122:80
iptables-save > /etc/iptables.up.rules

el archivo de configuracion del iptables en /etc/network/if-up.d/firewall
#!/bin/sh
#SCRIPT DE IPTABLEs
echo -n Aplicando reglas de Firewall

#FLUSH de reglas
iptables -F
iptables -X
iptables -Z
iptables -t nat -F
iptables -P INPUT ACCEPT
iptables -P OUTPUT ACCEPT
iptables -P FORWARD ACCEPT
iptables -t nat -P PREROUTING ACCEPT
iptables -t nat -P POSTROUTING ACCEPT
echo 1 > /proc/sys/net/ipv4/ip_forward
# cualquier peticióacia el puerto 80 (servicio HTTP) hecha desde la red local hacia el exterior,
# se re-direccionaráacia el puerto 3128 del servidor.
iptables -t nat -A PREROUTING -i eth1 -p tcp --dport 80 -j REDIRECT --to-port 3128
iptables -t nat -A POSTROUTING -s 192.168.10.0/24 -o eth0 -j MASQUERADE

chmod +x /etc/network/if-up.d/firewall
echo *OK, verifiquese el script con iptables -L -n*
#FIN DEL SCRIPT

otro detalle mas hago un nmap a el ip de mi servidor para saber si esta habierto el puerto 3128 de mi squid y me sale esto :

PORT STATE SERVICE
22/tcp open ssh
80/tcp open http
111/tcp open rpcbind
113/tcp open auth
10000/tcp open snet-sensor-mgmt

Ademas les dejo un fragmento del syslog haber si descubren que puede estar pasando :

Oct 7 08:09:29 localhost syslogd 1.4.1#18: restart.
Oct 7 08:09:29 localhost anacron[2876]: Job `cron.daily' terminated (mailing output)
Oct 7 08:09:33 localhost exim[3510]: 2008-10-07 08:09:33 1KnCJh-0000uc-Db failed to write to main log: length=134 result=-1 errno=28 (No space left on device)
Oct 7 08:09:33 localhost exim[3510]: write failed on panic log: length=122 result=-1 errno=28 (No space left on device)
Oct 7 08:09:33 localhost anacron[2876]: Tried to mail output of job `cron.daily', but mailer process (/usr/sbin/sendmail) exited with ststus 1
Oct 7 08:12:41 localhost anacron[2876]: Job `cron.weekly' started
Oct 7 08:12:41 localhost anacron[3592]: Updated timestamp for job `cron.weekly' to 2008-10-07
Oct 7 08:12:43 localhost syslogd 1.4.1#18: restart.
Oct 7 08:12:43 localhost anacron[2876]: Job `cron.weekly' terminated (mailing output)
Oct 7 08:12:43 localhost exim[3846]: 2008-10-07 08:12:43 1KnCMl-000102-Rd failed to write to main log: length=134 result=-1 errno=28 (No space left on device)
Oct 7 08:12:43 localhost exim[3846]: write failed on panic log: length=122 result=-1 errno=28 (No space left on device)
Oct 7 08:12:43 localhost anacron[2876]: Tried to mail output of job `cron.weekly', but mailer process (/usr/sbin/sendmail) exited with ststus 1
O

Espero haber sido claro en mi post, les agradecere toda ayuda me puedan brindar

gracias
darwin