Re: Ayuda con resolve.conf
O mar, 08 de nov de 2005, ás 10:29:07 -0400, Leonardo Vizcaya dixo:
> Buenos Dias Lista.
>
> Tengo un problema con mi archivo resolve.conf, sucede que en el tengo
> configurado el dns del servidor que me da el servicio de internet y
> todo funciona bien, lo extraño es que cuando apago o reinicio el
> computador, todo lo que estaba en el archivo se borra y cada vez que
> prendo el computador tengo que escribirle el search y el nameserver de
> mi resolve.conf, que estará pasando???? tienen alguna idea???
>
> de antemano gracias
>
>
Yo tenía el problema de que mi /etc/resolv.conf se me reescribía cada x minutos. Lo resolví
editando en fichero /etc/dhclient-script. Te adjunto una copia de mi fichero. Fíjate que a
partir de donde pone
else
make_resolv_conf() {
hai cuatro líneas comentadas. Esta es la modificación que hice. Prueba con esto y nos
comentas.
Suerte!
--
Os filósofos até o de agora só interpretárom o mundo, mas do que se
trata é de tranformá-lo. Karl Marx.
#!/bin/sh
# dhclient-script for Linux. Dan Halbert, March, 1997.
# Updated for Linux 2.[12] by Brian J. Murrell, January 1999.
# No guarantees about this. I'm a novice at the details of Linux
# networking.
# Support for resolvconf added by Thomas Hood, May 2004.
# Notes:
# 0. This script is based on the netbsd script supplied with dhcp-970306.
# 1. ifconfig down apparently deletes all relevant routes and flushes
# the arp cache, so this doesn't need to be done explicitly.
# 2. The alias address handling here has not been tested AT ALL.
# I'm just going by the doc of modern Linux ip aliasing, which uses
# notations like eth0:0, eth0:1, for each alias.
# 3. I have to calculate the network address, and calculate the broadcast
# address if it is not supplied. This might be much more easily done
# by the dhclient C code, and passed on.
# 4. TIMEOUT not tested. ping has a flag I don't know, and I'm suspicious
# of the $1 in its args.
# Must be used on exit. Invokes the local dhcp client exit hooks, if any.
exit_with_hooks() {
exit_status=$1
if [ -f /etc/dhclient-exit-hooks ]; then
. /etc/dhclient-exit-hooks
fi
# probably should do something with exit status of the local script
exit $exit_status
}
if [ -x /sbin/resolvconf ]; then
make_resolv_conf() {
R=""
[ x$new_domain_name != x ] && R="${R}search $new_domain_name
"
for NMSRVR in $new_domain_name_servers; do
R="${R}nameserver $NMSRVR
"
done
echo -n "$R" | /sbin/resolvconf -a "$interface" || return 1
}
unmake_resolv_conf() {
/sbin/resolvconf -d "$interface" || return 1
}
else
make_resolv_conf() {
# echo search $new_domain_name >/etc/resolv.conf
# for nameserver in $new_domain_name_servers; do
# echo nameserver $nameserver >>/etc/resolv.conf
# done
return 0
}
unmake_resolv_conf() {
return 0
}
fi
# Invoke the local dhcp client enter hooks, if they exist.
if [ -f /etc/dhclient-enter-hooks ]; then
exit_status=0
. /etc/dhclient-enter-hooks
# allow the local script to abort processing of this state
# local script must set exit_status variable to nonzero.
if [ $exit_status -ne 0 ]; then
exit $exit_status
fi
fi
release=`uname -r`
relminor=`expr $release : '[0-9]*\.[0-9]*\.\([0-9]*\).*'`
relmajor=`expr $release : '[0-9]*\.\([0-9]*\)\..*'`
release=`expr $release : '\([0-9]*\)\..*'`
if [ x$new_broadcast_address != x ]; then
new_broadcast_arg="broadcast $new_broadcast_address"
fi
if [ x$old_broadcast_address != x ]; then
old_broadcast_arg="broadcast $old_broadcast_address"
fi
if [ x$new_subnet_mask != x ]; then
new_subnet_arg="netmask $new_subnet_mask"
fi
if [ x$old_subnet_mask != x ]; then
old_subnet_arg="netmask $old_subnet_mask"
fi
if [ x$alias_subnet_mask != x ]; then
alias_subnet_arg="netmask $alias_subnet_mask"
fi
if [ x$reason = xMEDIUM ]; then
# Linux doesn't do mediums (ok, ok, media).
exit_with_hooks 0
fi
if [ x$reason = xPREINIT ]; then
if [ x$alias_ip_address != x ]; then
# Bring down alias interface. Its routes will disappear too.
ifconfig $interface:0- inet 0
fi
if [ $relmajor -lt 2 ] || ( [ $relmajor -eq 2 ] && [ $relminor -eq 0 ] )
then
ifconfig $interface inet 0.0.0.0 netmask 0.0.0.0 \
broadcast 255.255.255.255 up
# Add route to make broadcast work. Do not omit netmask.
route add default dev $interface netmask 0.0.0.0
else
ifconfig $interface up
fi
# We need to give the kernel some time to get the interface up.
sleep 1
exit_with_hooks 0
fi
if [ x$reason = xARPCHECK ] || [ x$reason = xARPSEND ]; then
exit_with_hooks 0
fi
if [ x$reason = xBOUND ] || [ x$reason = xRENEW ] || \
[ x$reason = xREBIND ] || [ x$reason = xREBOOT ]; then
if [ x$old_ip_address != x ] && [ x$alias_ip_address != x ] && \
[ x$alias_ip_address != x$old_ip_address ]; then
# Possible new alias. Remove old alias.
ifconfig $interface:0- inet 0
fi
if [ x$old_ip_address != x ] && [ x$old_ip_address != x$new_ip_address ]; then
# IP address changed. Bringing down the interface will delete all routes,
# and clear the ARP cache.
ifconfig $interface inet down
fi
if [ x$old_ip_address = x ] || [ x$old_ip_address != x$new_ip_address ] || \
[ x$reason = xBOUND ] || [ x$reason = xREBOOT ]; then
ifconfig $interface inet $new_ip_address $new_subnet_arg \
$new_broadcast_arg
if [ x$new_interface_mtu != x ]; then
ifconfig $interface mtu $new_interface_mtu
fi
# Add a network route to the computed network address.
if [ $relmajor -lt 2 ] || \
( [ $relmajor -eq 2 ] && [ $relminor -eq 0 ] ); then
route add -net $new_network_number $new_subnet_arg dev $interface
fi
for router in $new_routers; do
route add default gw $router
done
fi
if [ x$new_ip_address != x$alias_ip_address ] && [ x$alias_ip_address != x ];
then
ifconfig $interface:0- inet 0
ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
route add -host $alias_ip_address $interface:0
fi
make_resolv_conf || exit_with_hooks 1
exit_with_hooks 0
fi
if [ x$reason = xEXPIRE ] || [ x$reason = xFAIL ]; then
unmake_resolv_conf
if [ x$alias_ip_address != x ]; then
# Turn off alias interface.
ifconfig $interface:0- inet 0
fi
if [ x$old_ip_address != x ]; then
# Shut down interface, which will delete routes and clear arp cache.
ifconfig $interface inet down
fi
if [ x$alias_ip_address != x ]; then
ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
route add -host $alias_ip_address $interface:0
fi
exit_with_hooks 0
fi
if [ x$reason = xRELEASE ] || [ x$reason = xSTOP ]; then
unmake_resolv_conf
fi
if [ x$reason = xTIMEOUT ]; then
if [ x$alias_ip_address != x ]; then
ifconfig $interface:0- inet 0
fi
ifconfig $interface inet $new_ip_address $new_subnet_arg \
$new_broadcast_arg
set $new_routers
############## what is -w in ping?
if ping -q -c 1 $1; then
if [ x$new_ip_address != x$alias_ip_address ] && \
[ x$alias_ip_address != x ]; then
ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
route add -host $alias_ip_address dev $interface:0
fi
if [ $relmajor -lt 2 ] || \
( [ $relmajor -eq 2 ] && [ $relminor -eq 0 ] ); then
route add -net $new_network_number
fi
for router in $new_routers; do
route add default gw $router
done
make_resolv_conf || exit_with_hooks 1
exit_with_hooks 0
fi
unmake_resolv_conf
ifconfig $interface inet down
exit_with_hooks 1
fi
exit_with_hooks 0
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