On Wed, Jan 24, 2018 at 08:57:18AM +0100, Reindl Harald wrote:
>
>
> Am 24.01.2018 um 08:13 schrieb Yubin Ruan:
> > On Tue, Jan 23, 2018 at 04:10:10PM +0100, Lennart Poettering wrote:
> > > On Di, 23.01.18 09:09, Reindl Harald (h.rei...@thelounge.net) wrote:
> > > > depeding on how your network is configured use "network.service" or
> > > > "networkmanager.service" (or however the networkmanager service is
> > > > called in
> > > > detail, i don#t use it)
> > >
> > > Nope. Use "network-online.target" if you are looking for a generic
> > > unit to order after that is reached only after the network has been
> > > "configured" for the first time, for some vague definition of
> > > "configured", that is up to the networking implementation to fill with
> > > sense...
> >
> > Now I have these in the configuration file
> >
> > [Unit]
> > Description=Sync mail
> > Wants=network-online.target
> > After=network.target network-online.target
> >
> > [Service]
> > Type=oneshot
> > ExecStart=/path/to/the/script
> > TimeoutStartSec=1min30s
> >
> > [Install]
> > WantedBy=default.target
> >
> > However the script is still broken at system startup. Hmm...I am using a
> > Ubuntu 16.04LTS. I will post if there are any news
>
> AGAIN: how is your network started
>
> Lennart is *not* correct - at least on Fedora all the wait-online stuff
> don't work while "After=network.service" does when you still ue the cliassic
> network.service for a lot of obvious reasons
>
> [root@srv-rhsoft:~]$ cat /etc/rc.d/init.d/network
> #! /bin/bash
> #
> # network Bring up/down networking
> #
> # chkconfig: - 10 90
> # description: Activates/Deactivates all network interfaces configured to \
> # start at boot time.
> #
> ### BEGIN INIT INFO
> # Provides: $network
> # Should-Start: iptables ip6tables NetworkManager-wait-online NetworkManager
> $network-pre
> # Short-Description: Bring up/down networking
> # Description: Bring up/down networking
> ### END INIT INFO
Below are /etc/init.d/networking and /etc/init.d/network-manager respectively.
It seems that it is /etc/init.d/networking that is responsible for bringing up
the network.
######################################
# /etc/init.d/networking
######################################
#!/bin/sh -e
### BEGIN INIT INFO
# Provides: networking ifupdown
# Required-Start: mountkernfs $local_fs urandom
# Required-Stop: $local_fs
# Default-Start: S
# Default-Stop: 0 6
# Short-Description: Raise network interfaces.
# Description: Prepare /run/network directory, ifstate file and raise
network interfaces, or take them down.
### END INIT INFO
PATH="/sbin:/bin"
RUN_DIR="/run/network"
IFSTATE="$RUN_DIR/ifstate"
STATEDIR="$RUN_DIR/state"
[ -x /sbin/ifup ] || exit 0
[ -x /sbin/ifdown ] || exit 0
. /lib/lsb/init-functions
CONFIGURE_INTERFACES=yes
EXCLUDE_INTERFACES=
VERBOSE=no
[ -f /etc/default/networking ] && . /etc/default/networking
verbose=""
[ "$VERBOSE" = yes ] && verbose=-v
process_exclusions() {
set -- $EXCLUDE_INTERFACES
exclusions=""
for d
do
exclusions="-X $d $exclusions"
done
echo $exclusions
}
process_options() {
[ -e /etc/network/options ] || return 0
log_warning_msg "/etc/network/options still exists and it will be IGNORED!
Please use /etc/sysctl.conf instead."
}
check_ifstate() {
if [ ! -d "$RUN_DIR" ] ; then
if ! mkdir -p "$RUN_DIR" ; then
log_failure_msg "can't create $RUN_DIR"
exit 1
fi
if ! chown root:netdev "$RUN_DIR" ; then
log_warning_msg "can't chown $RUN_DIR"
fi
fi
if [ ! -r "$IFSTATE" ] ; then
if ! :> "$IFSTATE" ; then
log_failure_msg "can't initialise $IFSTATE"
exit 1
fi
fi
}
check_network_file_systems() {
[ -e /proc/mounts ] || return 0
if [ -e /etc/iscsi/iscsi.initramfs ]; then
log_warning_msg "not deconfiguring network interfaces: iSCSI root is
mounted."
exit 0
fi
while read DEV MTPT FSTYPE REST; do
case $DEV in
/dev/nbd*|/dev/nd[a-z]*|/dev/etherd/e*|curlftpfs*)
log_warning_msg "not deconfiguring network interfaces: network
devices still mounted."
exit 0
;;
esac
case $FSTYPE in
nfs|nfs4|smbfs|ncp|ncpfs|cifs|coda|ocfs2|gfs|pvfs|pvfs2|fuse.httpfs|fuse.curlftpfs)
log_warning_msg "not deconfiguring network interfaces: network file
systems still mounted."
exit 0
;;
esac
done < /proc/mounts
}
check_network_swap() {
[ -e /proc/swaps ] || return 0
while read DEV MTPT FSTYPE REST; do
case $DEV in
/dev/nbd*|/dev/nd[a-z]*|/dev/etherd/e*)
log_warning_msg "not deconfiguring network interfaces: network swap
still mounted."
exit 0
;;
esac
done < /proc/swaps
}
ifup_hotplug () {
if [ -d /sys/class/net ]
then
ifaces=$(for iface in $(ifquery --list --allow=hotplug)
do
link=${iface##:*}
link=${link##.*}
if [ -e "/sys/class/net/$link" ]
then
# link detection does not work unless
we up the link
ip link set "$iface" up || true
if [ "$(cat
/sys/class/net/$link/operstate)" = up ]
then
echo "$iface"
fi
fi
done)
if [ -n "$ifaces" ]
then
ifup $ifaces "$@" || true
fi
fi
}
case "$1" in
start)
if init_is_upstart; then
exit 1
fi
process_options
check_ifstate
if [ "$CONFIGURE_INTERFACES" = no ]
then
log_action_msg "Not configuring network interfaces, see
/etc/default/networking"
exit 0
fi
set -f
exclusions=$(process_exclusions)
log_action_begin_msg "Configuring network interfaces"
if [ -x /sbin/udevadm ]; then
if [ -n "$(ifquery --list --exclude=lo)" ] || [ -n "$(ifquery
--list --allow=hotplug)" ]; then
udevadm settle || true
fi
fi
if ifup -a $exclusions $verbose && ifup_hotplug $exclusions $verbose
then
log_action_end_msg $?
else
log_action_end_msg $?
fi
;;
stop)
if init_is_upstart; then
exit 0
fi
check_network_file_systems
check_network_swap
log_action_begin_msg "Deconfiguring network interfaces"
if ifdown -a --exclude=lo $verbose; then
log_action_end_msg $?
else
log_action_end_msg $?
fi
;;
reload)
if init_is_upstart; then
exit 1
fi
process_options
log_action_begin_msg "Reloading network interfaces configuration"
state=$(ifquery --state)
ifdown -a --exclude=lo $verbose || true
if ifup --exclude=lo $state $verbose ; then
log_action_end_msg $?
else
log_action_end_msg $?
fi
;;
force-reload|restart)
if init_is_upstart; then
exit 1
fi
process_options
log_warning_msg "Running $0 $1 is deprecated because it may not
re-enable some interfaces"
log_action_begin_msg "Reconfiguring network interfaces"
ifdown -a --exclude=lo $verbose || true
set -f
exclusions=$(process_exclusions)
if ifup -a --exclude=lo $exclusions $verbose && ifup_hotplug
$exclusions $verbose
then
log_action_end_msg $?
else
log_action_end_msg $?
fi
;;
*)
echo "Usage: /etc/init.d/networking
{start|stop|reload|restart|force-reload}"
exit 1
;;
esac
exit 0
########################################
# /etc/init.d/network-manager
########################################
#! /bin/sh
### BEGIN INIT INFO
# Provides: network-manager
# Required-Start: $remote_fs dbus udev
# Required-Stop: $remote_fs dbus udev
# Should-Start: $syslog
# Should-Stop: $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: network connection manager
# Description: Daemon for automatically switching network
# connections to the best available connection.
### END INIT INFO
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DESC="network connection manager"
NAME="NetworkManager"
DAEMON=/usr/sbin/$NAME
PIDFILE=/var/run/$NAME/$NAME.pid
SCRIPTNAME=/etc/init.d/network-manager
# Gracefully exit if the package has been removed.
test -x $DAEMON || exit 0
. /lib/lsb/init-functions
test -f /etc/default/NetworkManager && . /etc/default/NetworkManager
#
# Function that starts the daemon/service.
#
d_start() {
start-stop-daemon --start --quiet --pidfile $PIDFILE \
--exec $DAEMON -- $DAEMON_OPTS
}
#
# Function that stops the daemon/service.
#
d_stop() {
start-stop-daemon --stop --retry 5 --quiet --pidfile $PIDFILE \
--exec $DAEMON
}
case "$1" in
start)
log_daemon_msg "Starting $DESC" "$NAME"
d_start
case "$?" in
0) log_end_msg 0 ;;
1) log_progress_msg "already started"
log_end_msg 0 ;;
*) log_end_msg 1 ;;
esac
;;
stop)
log_daemon_msg "Stopping $DESC" "$NAME"
d_stop
case "$?" in
0) log_end_msg 0 ;;
1) log_progress_msg "already stopped"
log_end_msg 0 ;;
*) log_end_msg 1 ;;
esac
;;
restart|force-reload)
$0 stop
$0 start
;;
status)
status_of_proc -p $PIDFILE $DAEMON $NAME && exit 0 || exit $?
;;
*)
echo "Usage: $SCRIPTNAME {start|stop|restart|force-reload|status}" >&2
exit 1
;;
esac
exit 0
--
Yubin
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