Hi people, I´m having trouble compiling iptables 1.2.11 (in order to have the "string" match module - it´s not included in the standard RPM)... I´m using Fedora 2 (full install) and when I try to compile, I receive "#error including kernel header in userspace; use the glibc headers instead!". My kernel sources are located in /usr/src/linux-2.6.5-1.358, uname -r = 2.6.5-1.358, iptables v1.2.11. Is there any other way to have the "libipt_string" module compiled? I´ve googled about these errors, but coudn´t find any info that helped me to solve the problem... This is the output I get: [root@server01 iptables-1.2.11]# make KERNEL_DIR=/usr/src/linux-2.6.5-1.358 Extensions found: IPv4:recent IPv6:ah IPv6:esp IPv6:frag IPv6:ipv6header IPv6:hbh IPv6:dst IPv6:rt cc -O2 -Wall -Wunused -I/usr/src/linux-2.6.5-1.358/include -Iinclude/ -DIPTABLES_VERSION=\"1.2.11\" -D_UNKNOWN_KERNEL_POINTER_SIZE -fPIC -o extensions/libipt_ah_sh.o -c extensions/libipt_ah.c In file included from /usr/src/linux-2.6.5-1.358/include/linux/config.h:4, from /usr/src/linux-2.6.5-1.358/include/linux/netfilter_ipv4.h:8, from /usr/src/linux-2.6.5-1.358/include/linux/netfilter_ipv4/ip_tables.h:25, from include/libiptc/libiptc.h:6, from include/iptables.h:5, from extensions/libipt_ah.c:8: /usr/include/linux/autoconf.h:1:2: #error Invalid kernel header included in userspace In file included from /usr/src/linux-2.6.5-1.358/include/linux/netfilter_ipv4.h:8, from /usr/src/linux-2.6.5-1.358/include/linux/netfilter_ipv4/ip_tables.h:25, from include/libiptc/libiptc.h:6, from include/iptables.h:5, from extensions/libipt_ah.c:8: /usr/src/linux-2.6.5-1.358/include/linux/config.h:6:2: #error including kernel header in userspace; use the glibc headers instead! make: *** [extensions/libipt_ah_sh.o] Error 1 Mark Jones