linux IP watcher

[L]

Hi
my ISP provides a non-statis IP. I am looking for a linux tool to watch ip
address change. that can monitor my public and local IP address. If  IP
address changes it will send an email, to the address specified, with the
new IP address. This email also includes the computer name and time the
change occurred. This is useful for computers that have dynamically assigned
IP addresses, but need to be accessed remotely.

Hope some one can help

Yuan

[Konstantin Svist]

There are at least a few web services that offer a host-to-dynamic IP 
service.
Basically, you set up some special software that updates their website 
every time your host gets a new IP - and you always access it using the 
same URL

For example, no-ip.com provides this service freely.
I"m sure there are others, too

Lux Zhang wrote:
> Hi
> my ISP provides a non-statis IP. I am looking for a linux tool to 
> watch ip address change. that can monitor my public and local IP 
> address. If  IP address changes it will send an email, to the address 
> specified, with the new IP address. This email also includes the 
> computer name and time the change occurred. This is useful for 
> computers that have dynamically assigned IP addresses, but need to be 
> accessed remotely.
>
> Hope some one can help
>
> Yuan

[John Bowden]

On Saturday 30 June 2007 05:40:20 Konstantin Svist wrote:
> There are at least a few web services that offer a host-to-dynamic IP
> service.
> Basically, you set up some special software that updates their website
> every time your host gets a new IP - and you always access it using the
> same URL
>
> For example, no-ip.com provides this service freely.
> I"m sure there are others, too
>
> Lux Zhang wrote:
> > Hi
> > my ISP provides a non-statis IP. I am looking for a linux tool to
> > watch ip address change. that can monitor my public and local IP
> > address. If  IP address changes it will send an email, to the address
> > specified, with the new IP address. This email also includes the
> > computer name and time the change occurred. This is useful for
> > computers that have dynamically assigned IP addresses, but need to be
> > accessed remotely.
> >
> > Hope some one can help
> >
> > Yuan

My firewall box has that facility includded. It runs on an old PC, mine is an 
AMD 333mHz cpu with 128Mb RAM and a 1Gb hard drive and three nics. Once its 
installed and set up you don't even need a monitor on it as it can be 
administered from a web browser. I just set up a free account with no-ip.com. 
set up the option in my firewall. Have a look at smoothwall.org, for the 
firewall.

[John Bowden]

On Saturday 30 June 2007 05:49:55 John Bowden wrote:
> On Saturday 30 June 2007 05:40:20 Konstantin Svist wrote:
> > There are at least a few web services that offer a host-to-dynamic IP
> > service.
> > Basically, you set up some special software that updates their website
> > every time your host gets a new IP - and you always access it using the
> > same URL
> >
> > For example, no-ip.com provides this service freely.
> > I"m sure there are others, too
> >
> > Lux Zhang wrote:
> > > Hi
> > > my ISP provides a non-statis IP. I am looking for a linux tool to
> > > watch ip address change. that can monitor my public and local IP
> > > address. If  IP address changes it will send an email, to the address
> > > specified, with the new IP address. This email also includes the
> > > computer name and time the change occurred. This is useful for
> > > computers that have dynamically assigned IP addresses, but need to be
> > > accessed remotely.
> > >
> > > Hope some one can help
> > >
> > > Yuan
>
> My firewall box has that facility includded. It runs on an old PC, mine is
> an AMD 333mHz cpu with 128Mb RAM and a 1Gb hard drive and three nics. Once
> its installed and set up you don't even need a monitor on it as it can be
> administered from a web browser. I just set up a free account with
> no-ip.com. set up the option in my firewall. Have a look at smoothwall.org,
> for the firewall.
>
> --
> Guy Fawkes, the only man to enter the house's of Parliament
> with honest intentions, (he was going to blow them up!)
> Registered Linux user number 414240

Oops getting tired, i forgot to say. I think no-ip.com also have a program you 
can run on one of your machines if you don't want to build a separate 
firewall box

[Peter Connolly]

also dyndns.org.

On 6/29/07, Konstantin Svist  wrote:
> There are at least a few web services that offer a host-to-dynamic IP
> service.
> Basically, you set up some special software that updates their website
> every time your host gets a new IP - and you always access it using the
> same URL
>
> For example, no-ip.com provides this service freely.
> I"m sure there are others, too
>
> Lux Zhang wrote:
> > Hi
> > my ISP provides a non-statis IP. I am looking for a linux tool to
> > watch ip address change. that can monitor my public and local IP
> > address. If  IP address changes it will send an email, to the address
> > specified, with the new IP address. This email also includes the
> > computer name and time the change occurred. This is useful for
> > computers that have dynamically assigned IP addresses, but need to be
> > accessed remotely.
> >
> > Hope some one can help
> >
> > Yuan
>
> --
> fedora-list mailing list
> [e-mail]
> To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list

[Mikkel]

Lux Zhang wrote:
> Hi
> my ISP provides a non-statis IP. I am looking for a linux tool to watch
> ip address change. that can monitor my public and local IP address. If 
> IP address changes it will send an email, to the address specified, with
> the new IP address. This email also includes the computer name and time
> the change occurred. This is useful for computers that have dynamically
> assigned IP addresses, but need to be accessed remotely.
>
> Hope some one can help
>
> Yuan

Take a look at ddclient. It does a lot more then what you are after,
but it does send an email when the IP address changes. It is
designed for you with the different Dynamic DNS sites to keep your
IP address up to date. It will also work with most routers to get
the IP address from them. You can install it with yum, and start it
as a service after you configure it.

Mikkel

[L]

On 01/07/07, Mikkel L. Ellertson  wrote:
> Lux Zhang wrote:
> > Hi
> > my ISP provides a non-statis IP. I am looking for a linux tool to watch
> > ip address change. that can monitor my public and local IP address. If
> > IP address changes it will send an email, to the address specified, with
> > the new IP address. This email also includes the computer name and time
> > the change occurred. This is useful for computers that have dynamically
> > assigned IP addresses, but need to be accessed remotely.
> >
> > Hope some one can help
> >
> > Yuan
>
> Take a look at ddclient. It does a lot more then what you are after,
> but it does send an email when the IP address changes. It is
> designed for you with the different Dynamic DNS sites to keep your
> IP address up to date. It will also work with most routers to get
> the IP address from them. You can install it with yum, and start it
> as a service after you configure it.

thanks, i installed ddclient and it is nice. could you offer a bit hint how
to configure ddclient to send out email (eg [e-mail]) after each
update? It seems only sending out email to root at localhost.

Mikkel
> --
>
> Do not meddle in the affairs of dragons,
> for thou art crunchy and taste good with Ketchup!
>
> --
> fedora-list mailing list
> [e-mail]
> To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list

[Manuel Aróstegui]

El Lunes, 2 de Julio de 2007 04:14, Lux Zhang escribió:
> On 01/07/07, Mikkel L. Ellertson  wrote:
> > Lux Zhang wrote:
> > > Hi
> > > my ISP provides a non-statis IP. I am looking for a linux tool to watch
> > > ip address change. that can monitor my public and local IP address. If
> > > IP address changes it will send an email, to the address specified,
> > > with the new IP address. This email also includes the computer name and
> > > time the change occurred. This is useful for computers that have
> > > dynamically assigned IP addresses, but need to be accessed remotely.
> > >
> > > Hope some one can help
> > >
> > > Yuan
> >
> > Take a look at ddclient. It does a lot more then what you are after,
> > but it does send an email when the IP address changes. It is
> > designed for you with the different Dynamic DNS sites to keep your
> > IP address up to date. It will also work with most routers to get
> > the IP address from them. You can install it with yum, and start it
> > as a service after you configure it.
>
> thanks, i installed ddclient and it is nice. could you offer a bit hint how
> to configure ddclient to send out email (eg [e-mail]) after each
> update? It seems only sending out email to root at localhost.
>
> Mikkel

I've not seen the source code of the ddclient but I suppose you might need to 
hack the code to do that, or even more simplier, just add something like && 
mail -s ddclient update [e-mail] if you set up ddclient in a crontab 
task or something...

[Andy Green]

Lux Zhang wrote:
> thanks, i installed ddclient and it is nice. could you offer a bit hint
> how to configure ddclient to send out email (eg [e-mail]
> ) after each update? It seems only sending out
> email to root at localhost.

You should read root's mail anyway.  You get a daily summary from
Logwatch that way and maybe other exciting things.  Edit /etc/aliases
and change the bit at the end that says

# Person who should get root's mail
#root:          marc

to

# Person who should get root's mail
root:          [e-mail]

-Andy

[Mikkel]

Lux Zhang wrote:
> On 01/07/07, *Mikkel L. Ellertson* <[e-mail]
>     Take a look at ddclient. It does a lot more then what you are after,
>     but it does send an email when the IP address changes. It is
>     designed for you with the different Dynamic DNS sites to keep your
>     IP address up to date. It will also work with most routers to get
>     the IP address from them. You can install it with yum, and start it
>     as a service after you configure it.
>
> thanks, i installed ddclient and it is nice. could you offer a bit hint
> how to configure ddclient to send out email (eg [e-mail]
> ) after each update? It seems only sending out
> email to root at localhost.

Edit /etc/ddclient.conf and change "mail=root" to
"mail=[e-mail]".

Mikkel