my web space
An example (The Bible, Genesis 1)
1: In the beginning God created the heaven and the earth.
…
4: And God saw the light, that it was good: and God divided the light from the darkness.
… and God saw that it was good.
… and God saw that it was good.
and so on …
This iptables config will block all incoming traffic, except from machines, identified by thier MAC addresses:
iptables -F INPUT
iptables -A INPUT -m mac—mac-source 00:3f:5f:ab:2c:7d -j ACCEPT
iptables -A INPUT -m mac—mac-source 00:1e:32:36:97:4a -j ACCEPT
iptables -A INPUT -m mac—mac-source 00:44:11:a5:1d:6d -j ACCEPT
# or by ip address:
#iptables -A INPUT -p tcp -s 1.1.1.1 -j ACCEPT
#iptables -A INPUT -p tcp -s 2.2.2.2 -j ACCEPT
#iptables -A INPUT -p tcp -s 3.3.3.3 -j ACCEPT
iptables -A INPUT -m state—state ESTABLISHED -j ACCEPT
iptables -A INPUT -s 127.0.0.1 -j ACCEPT
iptables -A INPUT -j REJECT
I like to see green prompt for userid > 0 and red for root, also the hostname and the history number of a command.
PS1="\[\e[32;1m\]\u\[\e[30;1m\]@\[\e[32;1m\]\H[\!]\W\[\e[30;1m\]\\$\[\e[0m\]"
PS1="\[\e[32;1m\]\u\[\e[30;1m\]@\[\e[32;1m\]\H[\!]\W\[\e[30;1m\]\\$\[\e[0m\]"
9th sphere web design