Hi, I am trying to compile my firewall Debian kernel v2.4.31 with patch-o-matic v20050823. My problem is that the option STRING Match not work. Below I describe the procedure that I used. runme extra (I select only "string match") Compile the iptables v1.2.11 make BINDIR=/sbin LIBDIR=/lib MANDIR=/usr/man make BINDIR=/sbin LIBDIR=/lib MANDIR=/usr/man install Until it does not give error. Running the "make menuconfig" (Networking options / IP: Netfilter Configuration) the option "string match support" does not appear available for election. Option as psd, quota, ipp2p and others working with this procedure. Could you please to help me in this question? Thanks for your attention. Fernando.