Hallo I tried to connect my network about two seperate provider (router) to the internet, with complete different IP Subnetworks. The router are external connected to my Linux firewall with two public interfaces connect to provider router. Internal my linux firewall connected with one Interface to my DMZ. In the DMZ I have differnt Linux Server Mail (Exim) Web Server external DNS Server. Now I have much problems to configure my Web Server (virtual) and DNS Server that I can reach them about the two differnt IP addresses. I can´t use intelligent routing protocols because I must order an own autonome zone about DENIC to activate intelligent routing protocols at cisco routers. Is ist possible to configure my envoirment .... that if one provider fails my DNS and Web Server can reach from Internet about the other provider. (automatic). I ´ve already looked after rdisd, but I can´t find it for linux. I know my information is not enough ..... but I hope I can find anybody who has or has had an nearly problem and can help me. I hope anybody can an want to help me. steve *º¤., ¸¸,.¤º*¨¨¨*¤Stefan Grzenkowski*º¤., ¸¸,.¤º*¨¨*¤ *º¤., ¸¸,.¤º*¨¨¨*Gebics GbR *º¤., ¸¸,.¤º*¨¨*¤