After much reading realised that inadyn v1.96 doesn't allow me to have the secure option in my inadyn.conf file. So as advice by John Roberts here:

http://www.linuxquestions.org/questions/linux-software-2/opendns-with-dyndns-using-inadyn-580313/

I have moved to v1.99. But I am having problems compiling on my debian etch machine. Seems the same problem as was in this thread:

http://forums.opendns.com/comments.php?DiscussionID=402

Where Joe advises the fix is in version 1.99.
I am still getting the following errors on compile:

I would love to get this working if someone can help me please?

Thanks

Trux

sh-3.1# make
gcc -Wall -pedantic -c -o "bin/curl_client.o" "src/curl_client.c"
In file included from src/curl_client.c:17:
src/curl_client.h:18:23: error: curl/curl.h: No such file or directory
src/curl_client.c: In function 'curl_client':
src/curl_client.c:72: error: 'CURL' undeclared (first use in this function)
src/curl_client.c:72: error: (Each undeclared identifier is reported only once
src/curl_client.c:72: error: for each function it appears in.)
src/curl_client.c:72: error: 'curl' undeclared (first use in this function)
src/curl_client.c:73: error: 'CURLcode' undeclared (first use in this function)
src/curl_client.c:73: error: expected ';' before 'res'
src/curl_client.c:75: warning: ISO C90 forbids mixed declarations and code
src/curl_client.c:82: warning: implicit declaration of function 'curl_easy_init'
src/curl_client.c:87: warning: implicit declaration of function 'curl_easy_setopt'
src/curl_client.c:87: error: 'CURLOPT_URL' undeclared (first use in this function)
src/curl_client.c:88: error: 'CURLOPT_USERPWD' undeclared (first use in this function)
src/curl_client.c:89: error: 'CURLOPT_USERAGENT' undeclared (first use in this function)
src/curl_client.c:91: error: 'CURLOPT_HEADER' undeclared (first use in this function)
src/curl_client.c:93: error: 'CURLOPT_FOLLOWLOCATION' undeclared (first use in this function)
src/curl_client.c:95: error: 'CURLOPT_WRITEFUNCTION' undeclared (first use in this function)
src/curl_client.c:97: error: 'CURLOPT_WRITEDATA' undeclared (first use in this function)
src/curl_client.c:99: error: 'CURLOPT_NOPROGRESS' undeclared (first use in this function)
src/curl_client.c:105: error: 'CURLOPT_SSL_VERIFYPEER' undeclared (first use in this function)
src/curl_client.c:107: error: 'CURLOPT_SSL_VERIFYHOST' undeclared (first use in this function)
src/curl_client.c:113: warning: implicit declaration of function 'sprintf'
src/curl_client.c:113: warning: incompatible implicit declaration of built-in function 'sprintf'
src/curl_client.c:114: error: 'CURLOPT_PROXY' undeclared (first use in this function)
src/curl_client.c:119: error: 'res' undeclared (first use in this function)
src/curl_client.c:119: warning: implicit declaration of function 'curl_easy_perform'
src/curl_client.c:122: warning: implicit declaration of function 'curl_easy_cleanup'
src/curl_client.c:133: warning: implicit declaration of function 'printf'
src/curl_client.c:133: warning: incompatible implicit declaration of built-in function 'printf'
src/curl_client.c:133: warning: implicit declaration of function 'curl_easy_strerror'
src/curl_client.c:133: warning: format '%s' expects type 'char *', but argument 2 has type 'int'
make: *** [bin/curl_client.o] Error 1

Worked - thanks joe.