Hi All, I had configured RedHat Linux 7.1 as internet Gateway Server. When i try to add the module ip_nat_ftp. It gives the following error Using /lib/modules/2.4.2-2/kernel/net/ipv4/netfilter/ip_nat_ftp.o /lib/modules/2.4.2-2/kernel/net/ipv4/netfilter/ip_nat_ftp.o: unresolved symbol ip_conntrack_expect_related_Ree85aab5 /lib/modules/2.4.2-2/kernel/net/ipv4/netfilter/ip_nat_ftp.o: unresolved symbol ip_nat_expect_register_R22ca4f64 /lib/modules/2.4.2-2/kernel/net/ipv4/netfilter/ip_nat_ftp.o: unresolved symbol ip_nat_helper_register_Rd999d6f2 /lib/modules/2.4.2-2/kernel/net/ipv4/netfilter/ip_nat_ftp.o: unresolved symbol ip_nat_expect_unregister_R5ca5c902 /lib/modules/2.4.2-2/kernel/net/ipv4/netfilter/ip_nat_ftp.o: unresolved symbol ip_nat_cheat_check_R1e4e73a8 /lib/modules/2.4.2-2/kernel/net/ipv4/netfilter/ip_nat_ftp.o: unresolved symbol ip_nat_setup_info_Rd1af8d2b /lib/modules/2.4.2-2/kernel/net/ipv4/netfilter/ip_nat_ftp.o: unresolved symbol ip_nat_helper_unregister_Rdadfe31d I know that i have to compile the kernel , by enabling Network Packet Filtering, etc. Can anybody tell me, how to compile the Kernel with new Options without Losing my old Configuration.( ie. Both New and Old Configuration should work). Regards Prem ------------------------------------------------------------------------ To unsubscribe email security-discuss-request@linuxsecurity.com with "unsubscribe" in the subject of the message.