[EMAIL PROTECTED] said: > echo 1 > /proc/sys/net/ipv4/tcp_syncookies > for which I am getting the following error message. > /proc/sys/net/ipv4/tcp_syncookies: No such file or directory What Angela said. To explain that error above, /proc is special. It is not a normal filesystem in which you can create files. It's a filesystem-like window into the kernel. The kernel creates files there and makes it appear as though they contain information, even though they really don't. This explains some oddities about the stuff in /proc, like all the zero-length files which when you cat them give you stuff. Jeff _______________________________________________ techtalk mailing list [EMAIL PROTECTED] http://www.linux.org.uk/mailman/listinfo/techtalk