howto use curl to get Internet IP
mickeyboa at sbcglobal.net
Fri Jun 6 23:31:43 UTC 2008
> Jim wrote:
>> Dave Burns wrote:
>>> On Fri, Jun 6, 2008 at 7:48 AM, Jim <mickeyboa at sbcglobal.net> wrote:
>>>> I want to use curl to get my Internet IP address, and getting it to
>>>> Using getip.com and dyndns.org to get my IP for ddclient, isn't
>>>> out, they shutout ddclient after awhile from getting my Internet
>>>> IP to
>>>> send to dyndns.org .
>>>> I understand curl can get the Internet IP for ddclient, does anyone
>>>> know of
>>>> a HowTo to show me how to do this ?
>>> 1) if you insist on this approach, here's a hint:curl -o -
>>> http://getip.com/ 2>/dev/null|grep 128
>>> Replace 128 with some part of your IP number that you're confident
>>> will not change. In the example, I used the left 3 digits of my IP
>>> number. Use sed or awk to scrape off the crud that wget will spew out
>>> along with the IP number.
>>> 2) why not just use /sbin/ifconfig -a? Your machine knows its own IP
>>> number as well or better than getip.com.
>>> 3) why not man curl? That is, read the man page of the command you are
>>> asking about. You don't sound like you've even tried to do your
>> What approach would you suggest that is better to use ?
>> I have a DSL AP 2Wire783 in front of my computer that does not have
>> the capability of giving me the Internet IP.
> You sure about that? I'll admit I have only used about 4 or 5
> different dsl modems but all of them could be put in bridging mode.
You are correct, it is in the bridge mode , but I can only get ddclient
to get internal IP 192.168. etc, not Internet IP.
Below is my ddclient.conf.
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