[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [R] [S] [T] [U] [V] [W] [X] [Z] backdoors checking for installed during root kit attacks listening services that check for bandwidth usage graphing tracking for machine with firewall rules Barnyard compiling and installing for Sguil using with Snort configuring Barnyard limited database support logging bash shell restricted setting up in chroot( ) environment binaries, disallowing execution of on Linux setuid, cautions with sudo utility SUID or SGID bit BIND, securing restricting zone transfers bindip option, SnortSam bit-for-bit copy of system disks block-policy option (PacketFilter) modifying for specific rules booting compromised machine from an alternate media browsers acceptable formats for CA certs Internet Explorer, listing files opened by Mozilla, testing squid proxy securing and accelerating with squid proxy over SSH BSDs IPsec connections under FreeBSD IPsec connections under OpenBSD netstat program, listing listening ports OpenBSD and PacketFilter securelevels systrace, restricting system calls with buffer overflow attacks 0x90 in avoiding by limiting range of bytes in request strings kernel-based, preventing with grsecurity stack-based, preventing BusyBox, performing functions of system binaries |