Compare <code> and <code text> blocks:
<code> *filter # This will allow all loopback (lo0) traffic and drop all traffic to 127/8 # that does not use lo0 -A INPUT -i lo -j ACCEPT -A INPUT ! -i lo -d 127.0.0.0/8 -j REJECT # This accepts all already established connections -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT # This allows all outbound traffic -A OUTPUT -j ACCEPT </code>
<code text> *filter # This will allow all loopback (lo0) traffic and drop all traffic to 127/8 # that does not use lo0 -A INPUT -i lo -j ACCEPT -A INPUT ! -i lo -d 127.0.0.0/8 -j REJECT # This accepts all already established connections -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT # This allows all outbound traffic -A OUTPUT -j ACCEPT </code>
In dokuwiki text formatting option adds single spaces in the blank lines. Not helpful in the case of iptables rules files, where these spaces break the parser…