I am playing with my hack Ubuntu machine, and I am sorting out security. I want to disable ping. This is a laptop, and I want to document the application of aluminium foil.
The standard ping disabler is the following line... # echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_all This works fine on my Fedora laptop. On Ubuntu, I get... $ sudo echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_all -bash: /proc/sys/net/ipv4/icmp_echo_ignore_all: Permission denied The file exists. I can print it with "cat" (it prints "0". Why can I not change it? -- Howard Gibson hgib...@eol.ca jhowardgib...@gmail.com http://home.eol.ca/~hgibson --- Talk Mailing List talk@gtalug.org https://gtalug.org/mailman/listinfo/talk
