how to reboot automatically when internet connection is back on?

Just restart asterisk from the command line. You should be able to do a search on the internet for the command. I am also a linux idiot and don't know the actual command for it.

Sorry I was not clear in my question. I meant automatically have @home or trixbox computer intiate a reboot when the lost internet is restored again.

It would be nice if it restarts gracefully--- meaining only when no calls are active.

Thanks once more

I have never seen this type of behavoir before. When the net goes "down" are you losing the ip to the box? Once the system loses connection it begins retrying. So it should only have an issue if "something changes" when the internet goes down.

Thanks Jamie

I have not tried using service asterisk restart and I wouldn't know how to use IPTRAF

Enlighten me and I would try

an example of a script might get me to be able to write one

thanks

I can confirm this too. When we or a client loses Internet connectivity, SIP stops. I haven't really taken the time to troubleshoot the EXACT service that is the issue, but ALL SIP stops functioning with Asterisk. Maybe because it can't find the NTP peers? If DNS is disabled, it will work regardless, however if it can resolve DNS records but does not have Internet, SIP stops working.

Last time I stopped network service and I had been connected using putty ...(like cutting the branch you are seating On ...lol)

I had thought that was the problem network services needed to be restarted.

Now the hard part is how can we do this without having to do it manually.

Are there any linux experts that can write a script to check and monitor internet connection and once gone and is back to restart network service?

I should be able to check if this fixes the problem I have been loosing internet about once a week for last few weeks. Or I suppose I can disconnect the dsl modem and reconnect after 5 to 10 minutes and check if "service network restart" fixes the problem

There are many ways to skin a cat.

It seems that you are using your TB server as a router/firewall at the same time, meaning connecting the server directely to the DSL modem. This in my opinion is not best practice.

I suggest using a separate hardware DSL router with 4 port switch where you connect your server. In this case even if you lose the Internet for a while the server will not be affected and will straight away work when the Interenet comes live again.

Many routers these days are cheap enough and provide DMZ settings where you don't even need to open and forward ports manually (if you don't want to do that).

It works well.

Good luck.

my Isp is really bad and have lost internet atleast 5 times in two days and service network restart doesn't get the sip trunks back (from voip providers)

My iax2 trunk with my other asterisk box is up when internet is back on and also all my remote extension are reconnected to the asterisk box once internet is back.

I have done both service network restart and amportal stop and amportal start

Hope we can find the reasons sooooonnnn

Thanks for all your help