<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1477694544232_3589">Hello All</div><div id="yui_3_16_0_ym19_1_1477694544232_3590" dir="ltr"> <font id="yui_3_16_0_ym19_1_1477694544232_3981" size="3">I am trying to return the IP address of domains (DNS response) depending on a specific pattern that computes (decide ) IP to be returned. <br></font></div><div dir="ltr" id="yui_3_16_0_ym19_1_1477694544232_3698"><font id="yui_3_16_0_ym19_1_1477694544232_3710" size="3">Eg <br></font></div><div dir="ltr" id="yui_3_16_0_ym19_1_1477694544232_3980"><font id="yui_3_16_0_ym19_1_1477694544232_3710" size="3"> http://my100.machine1.com return 192.168.1.100</font></div><div dir="ltr" id="yui_3_16_0_ym19_1_1477694544232_3718"><font id="yui_3_16_0_ym19_1_1477694544232_3710" size="3"> <a href="http://myhost1.machine1.com/" id="yui_3_16_0_ym19_1_1477694544232_3979">http://my101.machine1.com return 192.168.1.101</a></font></div><div dir="ltr" id="yui_3_16_0_ym19_1_1477694544232_3978"><font id="yui_3_16_0_ym19_1_1477694544232_3710" size="3"><a href="http://myhost1.machine1.com/" id="yui_3_16_0_ym19_1_1477694544232_3977"> http://myhost2.machine1.com return 192.168.1.100</a> </font><br></div><div id="yui_3_16_0_ym19_1_1477694544232_3463"><br></div><div id="yui_3_16_0_ym19_1_1477694544232_3976"> The logic to decide the IP is something internal. <br></div><div id="yui_3_16_0_ym19_1_1477694544232_3885"> Could any help me where can i make this change. I have been trying to understand the code but didn't get the point to add my logic.</div><div id="yui_3_16_0_ym19_1_1477694544232_3874"> I looked at files. rfc1035.c, forward.c, cache.c.<br></div><div id="yui_3_16_0_ym19_1_1477694544232_3873"> Would really appreciate if any one could help me understand the flow or any pointers. <br></div><div id="yui_3_16_0_ym19_1_1477694544232_3872"><br></div><div id="yui_3_16_0_ym19_1_1477694544232_3871">Thanks</div><div id="yui_3_16_0_ym19_1_1477694544232_3870">Krishna.<br></div><div id="yui_3_16_0_ym19_1_1477694544232_3869"> <br></div></div></body></html>