Mailinglist Archive: opensuse (1540 mails)

["Wong" <wongsuse@xxxxxxxxxx>]

> On 02/14/2010 08:30 PM, Wong wrote:
> > > > > >  I tried to put the script file into ~/init.d/after.local either
> > > > > at > the top or the bottom of after.local. All daemons became
> > > > > unloaded to > system including iptables script.
> > > > >
> > > > >  That's impossible, one script can not unload the rest. You must be
> > > > > doing
> > > > >  something else.
> > > >
> > > > Hi Carlos,
> > > >
> > > > Perhaps my knowledge limitation cannot explain it why, but it is
> > > > truly happen. It is a mystery for me.
> > >
> > > It is rather a language barrier, I'm afraid.
> > >
> > > > To avoid misunderstanding, the others were not loaded then unloaded.
> > > > But it was not started by after.local if I put the script or loaded
> > > > from external file.
> > > >
> > > > I wish I could have the script and put in to a file and loaded by
> > > > after.local. It will be more organized.
> > >
> > > Now that I think, that code can not be written into after.local, or
> > > the system will "think" that the init scripts failed. All those
> > > scripts must exit sucessfully, you can not leave one working in a
> > > loop. Yo have to call another script in background from after.local
> > > and exit.
> > >
> > > I would create a new service to load just after "/etc/init.d/network",
> > > kind of "networkwatchdog" which would in turn start/kill another
> > > script running the loop.
> >
> > Thousand thanks Carlos, David, and others.
> >
> > It will be a great stuff that a must have for users that using ADSL link.
> >
> > Best Regards,
> >
> > Wong
>
> Wong,
>
> I still needed to see your 'ifconfig' output, but here is the script
> cleaned up
> a bit. You can use it as discussed, but you should check whether the link
> is up
> by some other manner than pinging a public server (it works though ;-)
>
> You will notice that in this version of the script, I moved the test of
> dsl0 to
> a separate function 'dsl0test()' so all you need to do is edit the
> function when
> you decide on the test you want to use. You can also specify the wait
> period
> from the command line (default is 60 seconds). So if you wanted to change
> the
> interval to 20 seconds, all you need to do is start the script with:
>
> nameofscript 20
>
> David and Carlos can fill in my screwups, but it should work well for you.
> Have
> fun.
>
>
> #!/bin/bash
>
> # check for root and use sudo if not root
> [[ $UID -eq 0 ]] && prefix="" || prefix="sudo "
>
> runfile=/var/run/chkdsl0.run
> tmpfile=/tmp/chkdsl0
> ckinterval=${1:-60}
>
> cleanup() {
>  ${prefix}rm -f $runfile
> }
>
> trap cleanup SIGINT SIGTERM EXIT
>
> ## Change this test based on your 'ifconfig' output (this is temporary)
> dsl0test() {
>  ping -q -c1 yahoo.com &>/dev/null
>  return $?
> }
>
> ## if the runfile is still present check the PID to see if it is running
> [[ -f $runfile ]] && {
>  ps ax | grep -q $(<$runfile) &>/dev/null
>  PIDrunning=$?
> }
>
> ## if not already running, start checking dsl0 connection
> if [[ ! -f $runfile ]] || [[ $PIDrunning != 0 ]]; then
>  echo "$$" > $tmpfile && ${prefix}cp $tmpfile $runfile && rm $tmpfile
>  ## keep runing until killed or $runfile deleted
>  while [[ -f $runfile ]] && [[ $$ == $( <$runfile ) ]]; do
>    ## if still OK, sleep for $ckinterval seconds, if dls0 down restart
> network
>    if dsl0test; then
>      sleep $ckinterval
>    else
>      ${prefix}rcnetwork restart
>    fi
>  done
> fi
>
> exit 0

Dave, here it is;

dsl0      Link encap:Point-to-Point Protocol
         inet addr:w.x.y.z  P-t-P:a.b.c.d  Mask:255.255.255.255
         UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1492  Metric:1
         RX packets:132535 errors:0 dropped:0 overruns:0 frame:0
         TX packets:122361 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:3
         RX bytes:126349004 (120.4 Mb)  TX bytes:18393814 (17.5 Mb)

eth0      Link encap:Ethernet  HWaddr 00:60:93:23:E2:49
         inet addr:192.168.0.2  Bcast:192.168.0.3  Mask:255.255.255.252
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:134283 errors:0 dropped:0 overruns:0 frame:0
         TX packets:124110 errors:0 dropped:0 overruns:0 carrier:0
         collisions:232 txqueuelen:1000
         RX bytes:129382957 (123.3 Mb)  TX bytes:21190789 (20.2 Mb)
         Interrupt:20 Base address:0xd000

eth1      Link encap:Ethernet  HWaddr 00:1D:C0:A3:2A:95
         inet addr:192.168.1.1  Bcast:192.168.1.255  Mask:255.255.255.0
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:97434 errors:0 dropped:0 overruns:0 frame:0
         TX packets:129258 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:100
         RX bytes:20350028 (19.4 Mb)  TX bytes:130289597 (124.2 Mb)
         Memory:e0700000-e0720000

lo        Link encap:Local Loopback
         inet addr:127.0.0.1  Mask:255.0.0.0
         UP LOOPBACK RUNNING  MTU:16436  Metric:1
         RX packets:2115 errors:0 dropped:0 overruns:0 frame:0
         TX packets:2115 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:0
         RX bytes:223533 (218.2 Kb)  TX bytes:223533 (218.2 Kb)

I know that I should ping my provider router (a.b.c.d) instead yahoo.com and 
put the addr into script.

Is the script to be run from external file or put into after.local? Please
advise me which is better.

Thanks a lot!

Wong


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